CN112358687B - Flame-retardant polypropylene composition and preparation method thereof - Google Patents
Flame-retardant polypropylene composition and preparation method thereof Download PDFInfo
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- CN112358687B CN112358687B CN202011247621.1A CN202011247621A CN112358687B CN 112358687 B CN112358687 B CN 112358687B CN 202011247621 A CN202011247621 A CN 202011247621A CN 112358687 B CN112358687 B CN 112358687B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The invention relates to a flame-retardant polypropylene composition and a preparation method thereof. The composition comprises the following components in parts by weight: 25-95 parts of polypropylene resin, 2-20 parts of flame retardant, 0.5-10 parts of flame retardant synergist, 0.5-10 parts of linear aliphatic polyester, 0.1-5 parts of ester lubricant, 0.1-1 part of antioxidant and 0.1-1 part of other auxiliary agent. The composition has good flame retardant effect and glossiness, and has no yellow lines in the injection molding process.
Description
Technical Field
The invention belongs to the field of polypropylene composite materials and preparation thereof, and particularly relates to a flame-retardant polypropylene composition and a preparation method thereof.
Background
The brominated flame retardant is one of the most commonly used flame retardant systems for flame retardant modification of polypropylene, has the advantages of high flame retardant efficiency, excellent product glossiness, balanced mechanical properties and the like, and is widely used in various industries such as intelligent bathroom, small household appliances and the like. The octabromo fire retardant has higher polarity, the polypropylene with non-polarity is relatively bad in compatibility, there is fire retardant migration phenomenon in processing and using, the high temperature can accelerate its migration, cause the apparent decline of glossiness of the surface of the products, appear the phenomenon such as fogging, tacky, frosting, etc., seriously influence appearance and use of the products. At present, the defect is not effectively solved, only the flame retardant system is barely improved by replacement, and the problem cannot be radically solved.
Chinese patent CN101333318A discloses a polypropylene flame-retardant master batch without precipitation and a preparation method thereof, wherein the flame retardant is coated to improve the precipitation phenomenon, but the special polymer used in the patent has a processing temperature higher than that of polypropylene, and risks of poor plasticization, uneven dispersion of the flame retardant and the like exist in the actual use process, so that the flame-retardant effect, yellow lines and the like in the injection molding process are affected. The Chinese patent CN201810747821.X discloses an octabromo flame retardant PP/PS alloy material, which improves migration and precipitation of the octabromo flame retardant by preferentially dispersing the octabromo flame retardant in polystyrene, but has poor PP/PS compatibility, poor toughness of an alloy system, and the PS contains a benzene ring structure, so that the application of the octabromo flame retardant is limited.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flame-retardant polypropylene composition and a preparation method thereof, so as to overcome the defects of poor flame-retardant effect and glossiness of a polypropylene material and yellow lines in an injection molding process in the prior art.
The invention provides a flame-retardant polypropylene composition, which comprises the following components in parts by weight: 60-97 parts of polypropylene resin, 2-20 parts of flame retardant, 0.5-10 parts of flame retardant synergist, 0.5-10 parts of linear aliphatic polyester, 0.1-5 parts of ester lubricant, 0.1-1 part of antioxidant and 0.1-1 part of other auxiliary agent.
The polypropylene resin is one or more of homo-polypropylene and co-polypropylene, and the melt flow rate of the polypropylene resin is 0.5-100g/10min (the test condition is 230 ℃/2.16 kg).
The flame retardant comprises one or more of tri (2, 3-dibromopropyl) isocyanatoester TBC, octabromoether (tetrabromobisphenol A-bis (2, 3-dibromopropyl) ether) and octabromoS ether (tetrabromobisphenol S bis (2, 3-dibromopropyl) ether).
The flame retardant synergist comprises one or more of antimony trioxide, sodium stannate and zinc borate.
The linear aliphatic polyester comprises one or more of polypropylene glycol glutarate, polyhexamethylene glycol adipate and polybutylene succinate.
The molecular weight of the linear aliphatic polyester is 20000-120000g/mol.
The ester lubricant comprises one or more of butyl stearate, 1, 2-hydroxy glyceryl stearate, glyceryl tristearate, glyceryl monooleate and hydroxy stearyl essence.
The antioxidant comprises one or more of antioxidant 1010 (tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol), antioxidant 168 (tris (2, 4-di-tert-butylphenyl) phosphite), antioxidant 1790 (1, 3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1H, 3H, 5H) -trione), and antioxidant 412S (pentaerythritol tetra-3-laurylthiopropionate).
The other auxiliary agent comprises a lubricant, wherein the lubricant comprises one or more of erucamide, oleamide, EBS amide, PE wax and stearate.
The invention also provides a preparation method of the flame-retardant polypropylene composition, which comprises the following steps:
and (3) uniformly mixing all the components, adding the components into an extruder, mixing, extruding and granulating to obtain the flame-retardant polypropylene composition.
The invention also provides application of the flame-retardant polypropylene composition in intelligent bathroom. For example for preparing intelligent toilet lids.
The linear aliphatic polyester has a coating effect on the flame retardant, the ester lubricant improves the dispersion of the flame retardant in the matrix, and meanwhile plays a bridging role, so that the binding force between the flame retardant and the matrix is increased, the linear aliphatic polyester and the ester lubricant have good compatibility, and the combination of the linear aliphatic polyester and the ester lubricant inhibits migration and precipitation of the flame retardant.
Advantageous effects
The linear aliphatic polyester and the ester lubricant in the polypropylene material have a synergistic effect, can improve the flame retardant effect and glossiness of the material, improve yellow lines in the injection molding process, and meet the high requirements of the fields of intelligent bathroom, household appliances, household daily use and the like on the comprehensive performance of the flame retardant polypropylene material.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
The raw materials used in the examples and comparative examples of the present invention are as follows, but are not limited to the following raw materials:
polypropylene PP1: homo-polypropylene, HP500N, melt flow rate 12g/10min (230 ℃ C./2.16 kg), commercially available;
polypropylene PP2: the melt flow rate of the polypropylene copolymer, PP EP548R, is 25g/10min (230 ℃/2.16 kg);
flame retardant: octabromoether (tetrabromobisphenol a-bis (2, 3-dibromopropyl) ether), octabromos ether (tetrabromobisphenol S bis (2, 3-dibromopropyl) ether), TBC (tris (2, 3-dibromopropyl) isocyanurate), commercially available;
flame retardant synergist: antimony trioxide (antimony white), sodium stannate and zinc borate, all commercially available;
linear aliphatic polyesters: polypropylene glycol glutarate (molecular weight 30000), polyhexamethylene glycol adipate (molecular weight 50000) and polybutylene succinate (molecular weight 60000), all commercially available;
ester lubricant: butyl stearate, 1, 2-hydroxy glyceryl stearate and glyceryl tristearate, all commercially available;
an antioxidant: 1010: marked as Y-001;168: the mark is Y-002; commercial purchase;
and (3) a lubricant: EBS B50, commercially available;
polyethylene terephthalate (PET): and is commercially available.
The polypropylene compositions of the examples and comparative examples of the present invention were prepared by: mixing all components uniformly, adding into main feeding system of extruder, mixing all components by extruder (the temperature of each zone of extruder is 180 deg.C, 200 deg.C, 220 deg.C, 215 deg.C, and rotating speed 400 rpm), extruding and granulating.
The polypropylene compositions of the examples and comparative examples of the present invention were molded at 180℃at 170℃at 185℃at 180℃at 170℃in each zone, and then subjected to the following performance tests (the test results are shown in Table 1, table 2):
(1) Flame retardant rating: UL94 vertical burn test.
(2) Gloss level: 60℃according to the standard ISO 2813.
(3) Injection molding yellow lines: the large combustion plate (GB 8410, 356mm long and 100mm wide) is subjected to thermal retention injection molding, and the thermal retention conditions are as follows: the mixture was allowed to stand at a constant temperature for 10 minutes and then was injected (the injection temperature was the same). Judgment standard: 1) No yellow streak: the surface is visually free of yellow lines; 2) Has yellow lines: yellow lines appear on the surface of the combustion plate; 3) Severe yellow streak: yellow lines appear at various places on the combustion surface.
The adding amounts of the four substances of the linear aliphatic polyester (or PET), the ester lubricant, the antioxidant and the lubricant in the embodiment and the comparative example are based on the parts by weight of the three total amounts of the polypropylene resin, the flame retardant and the flame retardant synergist.
Example 1
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 1 part of polybutylene succinate, 0.5 part of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 96 parts of polypropylene resin, 3 parts of octabromos ether, 1 part of antimony white, 1 part of polybutylene succinate, 0.5 part of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the flame-retardant polypropylene composition is obtained after extrusion bracing, cooling and granulating.
Example 2
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, and extruded into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 3
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoS ether, 4 parts of antimony white, 3 parts of polyhexamethylene glycol adipate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoS ether, 4 parts of antimony white, 3 parts of polyhexamethylene glycol adipate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the mixture is extruded, bracing and cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 4
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of polypropylene glycol polyglutamate, 1.5 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of polypropylene glycol glutarate, 1.5 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the mixture is extruded, pulled, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 5
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoS ether, 4 parts of antimony white, 3 parts of polyhexamethylene glycol adipate, 1.5 parts of 1, 2-hydroxystearin, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoS ether, 4 parts of antimony white, 3 parts of polyhexamethylene glycol adipate, 1.5 parts of 1, 2-hydroxystearin, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the mixture is extruded, pulled into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 6
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 4.5 parts of polybutylene succinate, 2 parts of glycerol tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 4.5 parts of polybutylene succinate, 2 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, and extruded into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 7
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 80 parts of polypropylene resin (polypropylene PP 2), 15 parts of octabromoS ether, 2.5 parts of antimony white, 2.5 parts of zinc borate, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
80 parts of polypropylene resin (polypropylene PP 2), 15 parts of octabromoS ether, 2.5 parts of antimony white, 2.5 parts of zinc borate, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the mixture is extruded, bracing and cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 8
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 88 parts of polypropylene resin (polypropylene PP 1), 9 parts of octabromoether, 3 parts of antimony white, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 88 parts of polypropylene resin (polypropylene PP 1), 9 parts of octabromoether, 3 parts of antimony white, 3 parts of polybutylene succinate, 1.5 parts of glyceryl tristearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, and extruded into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 9
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 70 parts of polypropylene resin (polypropylene PP 1), 20 parts of TBC, 5 parts of antimony white, 5 parts of sodium antimonate, 6 parts of polyhexamethylene glycol adipate, 3 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 70 parts of polypropylene resin (polypropylene PP 1), 20 parts of TBC, 5 parts of antimony white, 5 parts of sodium antimonate, 6 parts of polyhexamethylene glycol adipate, 3 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and after extrusion bracing and cooling, the mixture is pelletized, so that the flame-retardant polypropylene composition is obtained.
Example 10
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 76 parts of polypropylene resin (polypropylene PP 2), 18 parts of TBC, 3 parts of antimony white, 3 parts of zinc borate, 10 parts of polyhexamethylene glycol adipate, 5 parts of 1, 2-hydroxystearin, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 76 parts of polypropylene resin (polypropylene PP 2), 18 parts of TBC, 3 parts of antimony white, 3 parts of zinc borate, 10 parts of polyhexamethylene glycol adipate, 5 parts of 1, 2-hydroxystearin, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the mixture is extruded, pulled, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Example 11
The embodiment provides a flame-retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.5 part of polypropylene glycol polyglutamate, 0.1 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.5 part of polypropylene glycol glutarate, 0.1 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the flame-retardant polypropylene composition is obtained after extrusion bracing, cooling and granulating.
Comparative example 1
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, extruded, pulled into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 2
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 4 parts of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, extruded, pulled into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 3
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of polypropylene glycol polyglutamate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of polypropylene glycol polyglutamate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, and extruded into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 4
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 1.5 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 1.5 parts of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, and subjected to extrusion bracing, cooling and granulating to obtain the flame-retardant polypropylene composition.
Comparative example 5
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 80 parts of polypropylene resin (polypropylene PP 2), 15 parts of octabromoS ether, 2.5 parts of antimony white, 2.5 parts of zinc borate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 80 parts of polypropylene resin (polypropylene PP 2), 15 parts of octabromoS ether, 2.5 parts of antimony white, 2.5 parts of zinc borate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, extruded, pulled into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 6
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 88 parts of polypropylene resin (polypropylene PP 1), 9 parts of octabromoether, 3 parts of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 88 parts of polypropylene resin (polypropylene PP 1), 9 parts of octabromoether, 3 parts of antimony white, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, extruded, pulled into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 7
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of polyethylene terephthalate (PET), 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 84 parts of polypropylene resin (polypropylene PP 1), 12 parts of octabromoether, 2 parts of antimony white, 2 parts of sodium stannate, 3 parts of modified polycarbonate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, added into a main feeding port of a double-screw extruder, extruded into strips, cooled and pelletized to obtain the flame-retardant polypropylene composition.
Comparative example 8
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 96 parts of polypropylene resin (PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.3 part of polypropylene glycol polyglutamate, 0.1 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
The method comprises the following steps: 96 parts of polypropylene resin (PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.3 part of polypropylene glycol polyglutaricate acid ester, 0.1 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the flame-retardant polypropylene composition is obtained after extrusion bracing, cooling and granulating.
Comparative example 9
The comparative example provides a flame retardant polypropylene composition and a preparation method thereof, wherein the composition comprises the following components in parts by weight: 96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.5 part of polypropylene glycol polyglutamate, 0.06 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant.
96 parts of polypropylene resin (polypropylene PP 2), 3 parts of octabromoS ether, 1 part of antimony white, 0.5 part of polypropylene glycol glutarate, 0.06 part of butyl stearate, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.2 part of lubricant are uniformly mixed, and then added into a main feeding port of a double-screw extruder, and the flame-retardant polypropylene composition is obtained after extrusion bracing, cooling and granulating.
TABLE 1
TABLE 2
As can be seen from tables 1 and 2, the polypropylene compositions of comparative examples 1 and 2, without the addition of the linear aliphatic polyester and the ester lubricant, have a gloss retention significantly lower than those of examples 1 and 2 and a yellow streak during injection molding. The comparative example 5 has a large amount of flame retardant added without the addition of linear aliphatic polyester and ester lubricant, and has a significantly lower retention than example 7 and severe injection molding yellow streaks. The comparative example 6 has a smaller amount of flame retardant added without the addition of the linear aliphatic polyester and the ester lubricant, and has a significantly lower retention and flame retardant effect than example 8, and has injection-molded yellow streaks. The polypropylene compositions of comparative example 3 and comparative example 4, without the addition of linear aliphatic polyester or ester lubricant, have a gloss retention significantly lower than that of example 4 and both have injection molded yellow marks. The linear aliphatic polyester content in the polypropylene composition of comparative example 8 was not within the scope of the present invention, the ester lubricant content in the polypropylene composition of comparative example 9 was not within the scope of the present invention, the retention was significantly lower than in example 11, and there were all injection-molded yellow marks. The comparative example 7 where the polyester was replaced with polyethylene terephthalate (PET), the polypropylene composition was not good in gloss retention as in example 4 and had yellow streaks during injection molding. Therefore, the linear aliphatic polyester and the ester lubricant have a synergistic effect, so that the flame retardant effect and the glossiness retention rate of the polypropylene composition can be improved, and the yellow lines in the injection molding process can be improved.
Claims (6)
1. The flame-retardant polypropylene composition is characterized by comprising the following components in parts by weight: 60-97 parts of polypropylene resin, 2-20 parts of flame retardant, 0.5-10 parts of flame retardant synergist, 0.5-10 parts of linear aliphatic polyester, 0.1-5 parts of ester lubricant, 0.1-1 part of antioxidant and 0.1-1 part of other auxiliary agent; the linear aliphatic polyester comprises one or more of poly (propylene glycol glutarate) and poly (butylene succinate); the ester lubricant comprises one or more of butyl stearate, 1, 2-hydroxy stearic acid glyceride, tristearin, glycerol monooleate and hydroxy stearyl essence; the molecular weight of the linear aliphatic polyester is 20000-60000g/mol; the other auxiliary agents comprise a lubricant, wherein the lubricant comprises one or more of erucamide, oleamide, EBS amide, PE wax and stearate; the flame retardant comprises octabromoether and/or octabromos ether.
2. The composition of claim 1, wherein the polypropylene resin is one or more of homo-polypropylene and co-polypropylene, and the polypropylene resin has a melt flow rate of 0.5-100g/10min.
3. The composition of claim 1, wherein the flame retardant synergist comprises one or more of antimony trioxide, sodium stannate, zinc borate.
4. The composition of claim 1, wherein the antioxidant comprises one or more of antioxidant 1010, antioxidant 168, antioxidant 1790, antioxidant 412S.
5. A method of preparing the composition of claim 1, comprising:
and (3) uniformly mixing all the components, adding the components into an extruder, mixing, extruding and granulating to obtain the flame-retardant polypropylene composition.
6. Use of the composition of claim 1 in smart toilets.
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| JP2000154282A (en) * | 1998-11-20 | 2000-06-06 | Daicel Chem Ind Ltd | Flame-retardant polyolefin resin composition and its molding |
| JP2000265072A (en) * | 1999-03-12 | 2000-09-26 | Suzuhiro Kagaku:Kk | Flame-retarded resin composition and molded article thereof |
| CN101333318A (en) * | 2007-06-27 | 2008-12-31 | 佛山市顺德区高怡新塑料有限公司 | Precipitate-free polypropylene fire retardant mastre batch and method for preparing same |
| EP2319882B1 (en) * | 2008-08-28 | 2013-10-09 | Adeka Corporation | Polyolefin resin composition |
| CN102093629A (en) * | 2009-12-15 | 2011-06-15 | 银禧工程塑料（东莞）有限公司 | High-luster flame retardant polypropylene complex without precipitates on surface and preparation method thereof |
| WO2013069365A1 (en) * | 2011-11-10 | 2013-05-16 | ユニチカ株式会社 | Thermoplastic resin composition and molded body formed from same |
| CN102775590B (en) * | 2012-08-15 | 2014-11-12 | 金发科技股份有限公司 | Poly(butylene succinate) and preparation method thereof |
| CN106280291A (en) * | 2015-05-20 | 2017-01-04 | 深圳市联创科技集团有限公司 | Substitute PBS composite of electric appliance casing PP and preparation method thereof |
| KR102216041B1 (en) * | 2017-09-21 | 2021-02-16 | 가부시키가이샤 티비엠 | Thermoplastic resin composition and molded article using the same |
| CN108102213B (en) * | 2017-11-10 | 2021-01-26 | 金发科技股份有限公司 | Flame-retardant polypropylene composition and preparation method and application thereof |
| CN109161094B (en) * | 2018-07-09 | 2021-04-13 | 金发科技股份有限公司 | Flame-retardant polypropylene material and preparation method and application thereof |
| CN110951165A (en) * | 2018-09-26 | 2020-04-03 | 合肥杰事杰新材料股份有限公司 | Flame-retardant polypropylene composite material, preparation method thereof and building plastic tile made of material |
| JP7363649B2 (en) * | 2019-04-12 | 2023-10-18 | 日本ポリプロ株式会社 | Polypropylene resin composition and molded article using the same |
| CN111138800B (en) * | 2019-12-31 | 2021-09-17 | 金发科技股份有限公司 | ABS/polyester alloy composition and preparation method thereof |
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