CN102617921A - Glass fiber reinforced metallocene polyethylene material and preparation method thereof - Google Patents
Glass fiber reinforced metallocene polyethylene material and preparation method thereof Download PDFInfo
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- CN102617921A CN102617921A CN2012101100050A CN201210110005A CN102617921A CN 102617921 A CN102617921 A CN 102617921A CN 2012101100050 A CN2012101100050 A CN 2012101100050A CN 201210110005 A CN201210110005 A CN 201210110005A CN 102617921 A CN102617921 A CN 102617921A
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Abstract
The invention discloses glass fiber reinforced metallocene polyethylene material and a preparation method thereof. The glass fiber reinforced metallocene polyethylene material is characterized by comprising the following components by part by weight: 55 to 88 parts of metallocene polyethylene, 5 to 40 parts of glass fiber, 2 to 10 parts of compatilizer, 0.2 to 1.0 part of heat stabilizer and 0.1 to 1.0 part of processing aid. The preparation method comprises the following steps: adding metallocene polyethylene, compatilizer, heat stabilizer and processing aid into mixing equipment, carrying out melting, blending and dispersing at the temperature of 160 to 250 DEG C, adding glass fiber from a side feed inlet at the same time, and carrying out extrusion and pelletization at last. The material provided by the invention has excellent rigidity and tenacity as well as excellent welding strength, is applicable to work pieces with certain requirements on mechanics and stress resistance, and is particularly applicable to work pieces with requirements on welding strength.
Description
Technical field
The present invention relates to a kind of glass and strengthen metallocene polyethylene material and preparation method thereof, be specifically related to a kind of glass enhancing modified metallocene polyethylene material that is used for electrical function spare and preparation method thereof.
Background technology
Vilaterm, has in daily life and industrial and agricultural production widely and uses, like food product pack, electrical package, tubing, electric wire etc. because of it has good toughness, electrical insulating property and workability as one of five big general-purpose plastics.Along with the continuous development of polyolefin catalyst and production technique, the poly new variety with different qualities constantly are developed, and metallocene PE is exactly one of them.
Metallocene PE is to be the Vilaterm that polymerizing catalyst is polymerized by metallocene; The Vilaterm that on performance, forms with traditional Ziegler-Natta catalyst catalysis has different significantly; At first be because the active site of metallocene catalyst is identical and single; The metallocene PE MWD is very narrow, and even structure, film strength, heat sealability, hexane extraction rate etc. all have significantly than general polyethylene product to be improved; And can be to molecular weight, MWD, stereoregular structure, the content of comonomer and the control that branch is realized precision of polymkeric substance, this is that traditional Ziegler-Natta catalyst is not accomplished.
For metallocene PE; Its catalyst system that adopts makes product have the good mechanical performance; But brought very big viscosity, the Vilaterm that processing characteristics is prepared from not as conventional Ziegler-Natta catalyst, however; Do not influence the application of metallocene PE, particularly in some rigidity, the higher occasion of toughness reguirements to polythene material.
Summary of the invention
The purpose of this invention is to provide a kind of glass and strengthen metallocene polyethylene material, it has favorable rigidity and toughness, has good welding strength simultaneously, is applicable to certain mechanics requirement, the product of proof stress requirement is arranged.
To achieve these goals, the invention provides a kind of glass and strengthen metallocene polyethylene material, it is characterized in that, comprise following component in weight part:
Metallocene PE 55-88 part;
Spun glass 5-40 part;
Compatilizer 2-10 part;
Thermo-stabilizer 0.2-1.0 part;
Processing aid 0.1-1.0 part.
Preferably, the ratio of the weight-average molecular weight of said metallocene PE and number-average molecular weight is less than 2.5.
Preferably, described spun glass is an alkali free glass fibre.
Further, described spun glass is the short alkali free glass fibre of cutting.
Preferably; Described compatilizer is the polar monomer graftomer; Its polymeric matrix is any one or a few the mixture in multipolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer and the ethylene-acrylate-glycidyl methacrylate copolymer of Vilaterm, metallocene PE, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, vinylbenzene and divinyl, and its polar monomer is any one or a few the mixture in maleic anhydride and analogue and vinylformic acid and the ester derivative thereof.
Preferably, described thermo-stabilizer is the mixture class of phenols, amine, phosphorous acid esters, half Hinered phenols, acryl functional group and monothioester and any one or a few the mixture in the calixarene kind thermo-stabilizer.
Preferably, described processing aid is any one or a few the mixture in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class and the amides processing aid.
The present invention also provides above-mentioned glass to strengthen the preparation method of metallocene polyethylene material; It is characterized in that; Metallocene PE, compatilizer, thermo-stabilizer and processing aid are added in the mixing facilities in proportion, carry out melting mixing at 160-250 ℃ and disperse, simultaneously; Spun glass is added from the side spout, extrude at last, granulation.
Described mixing facilities is single screw extrusion machine or twin screw extruder.
Because the metallocene PE that the present invention adopts is narrow on MWD, therefore, performance is excellent, simultaneously also good than common Vilaterm on rigidity and toughness on weld mark strength.
Method provided by the invention can improve and sets up fully production efficiency, reduces the energy consumption of production process, satisfies industry and society to the continuous demand of development of polyethylene product.Adopt the material of method provided by the invention preparation to have favorable rigidity and toughness, have good welding strength simultaneously, be applicable to certain mechanics requirement, the product of proof stress requirement is arranged, be specially adapted to have the product that welding strength requires.
Embodiment
Further set forth the present invention through embodiment and Comparative Examples below.Spun glass in embodiment 1-4 and the Comparative Examples is selected alkali free glass fibre (508A, megalith glass) for use; Compatilizer is selected maleic anhydride graft new LDPE (film grade) (AD-70, Foshan Bai Chen), horse Lay anhydride grafted lldpe (PC-3C, Foshan Bai Chen) for use; Thermo-stabilizer is selected Irganox 1010 (CIBA company), Irganox 168 (CIBA company) for use; Processing aid is selected erucicamide, Zinic stearas, calcium stearate for use.
Embodiment 1
Take by weighing metallocene PE (MLLDPE GH030; Mitsui) 88 kilograms, 0.5 kilogram of 5.5 kilograms of AD-70,10100.5 kilograms of Irganox, 168 0.5 kilograms of Irganox and erucicamide join length-to-diameter ratio and are in 40: 1 the twin screw extruder melting mixing and disperse; Extrusion temperature is 180 ℃; Simultaneously, 5 kilograms in spun glass is added from the side spout, extrude at last, granulation.
The above-mentioned material that makes is carried out performance test, and test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 27 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 48 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 910 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 9.5 |
| Weld mark strength | ISO?527 | 10mm/min | MPa | 21 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 0.97 |
Embodiment 2
Take by weighing metallocene PE (MLLDPE 1018CA; Exxon Mobil) 82 kilograms, 0.5 kilogram of 6.5 kilograms of AD-7O, 0.5 kilogram of Irganox1010,168 0.5 kilograms of Irganox and Zinc Stearate join in the twin screw extruder that length-to-diameter ratio is 40:1 melting mixing and disperse; Extrusion temperature is 180 ℃; Simultaneously, 10 kilograms in spun glass is added from the side spout, extrude at last, granulation.
The above-mentioned material that makes is carried out performance test, and test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 36 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 55 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 1200 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 12.1 |
| Weld mark strength | ISO?527 | 10mm/min | MPa | 24 |
| Density | ISO?l183 | 23℃ | g/cm 3 | 1.01 |
Embodiment 3
Take by weighing metallocene PE (MLLDPE 3527PA; Exxon Mobil) 71 kilograms, 7.5 kilograms of AD-105,0.5 kilogram of Irganox1010,168 0.5 kilograms of Irganox, 0.5 kilogram of calcium stearate join melting mixing dispersion in the twin screw extruder that length-to-diameter ratio is 40:1; Extrusion temperature is 180 ℃; Simultaneously, 20 kilograms in spun glass is added from the side spout, extrude at last, granulation.
The above-mentioned material that makes is carried out performance test, and test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 45 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 65 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 1900 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 19 |
| Weld mark strength | ISO?527 | 10mm/min | MPa | 27 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.08 |
Embodiment 4
Take by weighing metallocene PE (MLLDPE SP2520; Japan Pu Ruiman) 59 kilograms, AD-709.5 kilogram, 0.5 kilogram of Irganox1010,168 0.5 kilograms of Irganox, 0.5 kilogram of calcium stearate join length-to-diameter ratio and are in 40: 1 the twin screw extruder melting mixing and disperse; Extrusion temperature is 180 ℃; Simultaneously, 30 kilograms in spun glass is added from the side spout, extrude at last, granulation.
The above-mentioned material that makes is carried out performance test, and test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10m/min | MPa | 58 |
| Flexural strength | ISO?178 | 2mm/mi?n | MPa | 77 |
| Modulus in flexure | ISO?l78 | 2mm/min | MPa | 2800 |
| Shock strength | ISO?180 | 23℃ | KJ/m 2 | 24.9 |
| Weld mark strength | ISO?527 | 10mm/min | MPa | 25.4 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.16 |
Comparative Examples
(LLDPE 2035 to take by weighing Vilaterm; Tao Shi) 59 kilograms, AD-709.5 kilogram, 1,010 0.5 kilograms of Irganox, 168 0.5 kilograms of Irganox, 0.5 kilogram of erucicamide join length-to-diameter ratio and are in 40: 1 the twin screw extruder melting mixing and disperse; Extrusion temperature is 180 ℃; Simultaneously, 30 kilograms in spun glass is added from the side spout, extrude at last, granulation.
The above-mentioned material that makes is carried out performance test, and test result is tabulated as follows:
| Performance index | Testing standard | Conditional parameter | Unit | Test result |
| Tensile strength | ISO?527 | 10mm/min | MPa | 50 |
| Flexural strength | ISO?178 | 2mm/min | MPa | 64 |
| Modulus in flexure | ISO?178 | 2mm/min | MPa | 71 |
| Shock strength | ISO?18O | 23℃ | KJ/m 2 | 18 |
| Weld mark strength | ISO?527 | 10mm/min | MPa | 16 |
| Density | ISO?1183 | 23℃ | g/cm 3 | 1.16 |
Claims (9)
1. a glass strengthens metallocene polyethylene material, it is characterized in that, comprises following component in weight part:
Metallocene PE 55-88 part;
Spun glass 5-40 part;
Compatilizer 2-10 part;
Thermo-stabilizer 0.2-1.0 part;
Processing aid 0.1-1.0 part.
2. glass as claimed in claim 1 strengthens metallocene polyethylene material, it is characterized in that the weight-average molecular weight of said metallocene PE and the ratio of number-average molecular weight are less than 2.5.
3. glass as claimed in claim 1 strengthens metallocene polyethylene material, it is characterized in that described spun glass is an alkali free glass fibre.
4. glass as claimed in claim 3 strengthens metallocene polyethylene material, it is characterized in that, described spun glass is the short alkali free glass fibre of cutting.
5. glass as claimed in claim 1 strengthens metallocene polyethylene material; It is characterized in that; Described compatilizer is the polar monomer graftomer; Its polymeric matrix is any one or a few the mixture in multipolymer, polyethylene-polystyrene-polypropylene terpolymer, ethylene-propylene-butadiene terpolymer, ethylene-acrylate copolymer and the ethylene-acrylate-glycidyl methacrylate copolymer of Vilaterm, metallocene PE, Vestolen PP 7052, ethene-α-ethylene-octene copolymer, vinylbenzene and divinyl, and its polar monomer is any one or a few the mixture in maleic anhydride and analogue and vinylformic acid and the ester derivative thereof.
6. glass as claimed in claim 1 strengthens metallocene polyethylene material; It is characterized in that described thermo-stabilizer is the mixture class of phenols, amine, phosphorous acid esters, half Hinered phenols, acryl functional group and monothioester and any one or a few the mixture in the calixarene kind thermo-stabilizer.
7. glass as claimed in claim 1 strengthens metallocene polyethylene material, it is characterized in that, described processing aid is any one or a few the mixture in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class and the amides processing aid.
8. the described glass of claim 1 strengthens the preparation method of metallocene polyethylene material; It is characterized in that; Metallocene PE, compatilizer, thermo-stabilizer and processing aid are added in the mixing facilities in proportion, carry out melting mixing at 160-250 ℃ and disperse, simultaneously; Spun glass is added from the side spout, extrude at last, granulation.
9. glass as claimed in claim 8 strengthens the preparation method of metallocene polyethylene material, it is characterized in that described mixing facilities is single screw extrusion machine or twin screw extruder.
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| CN2012101100050A CN102617921A (en) | 2012-04-16 | 2012-04-16 | Glass fiber reinforced metallocene polyethylene material and preparation method thereof |
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| CN2012101100050A CN102617921A (en) | 2012-04-16 | 2012-04-16 | Glass fiber reinforced metallocene polyethylene material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924857A (en) * | 2012-08-23 | 2013-02-13 | 上海金发科技发展有限公司 | Glass fiber reinforced styrene/maleic anhydride composite and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001139702A (en) * | 1999-11-11 | 2001-05-22 | Asahi Kasei Corp | Glass-fiber reinforced resin molded product |
| CN101412830A (en) * | 2008-12-02 | 2009-04-22 | 上海金发科技发展有限公司 | Non-halogen flame-retardant polypropylene composite material and preparation thereof |
| JP2010254733A (en) * | 2009-04-21 | 2010-11-11 | Sekisui Techno Seikei Kk | Resin composition for molding and method of production of molded article using the same |
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2012
- 2012-04-16 CN CN2012101100050A patent/CN102617921A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001139702A (en) * | 1999-11-11 | 2001-05-22 | Asahi Kasei Corp | Glass-fiber reinforced resin molded product |
| CN101412830A (en) * | 2008-12-02 | 2009-04-22 | 上海金发科技发展有限公司 | Non-halogen flame-retardant polypropylene composite material and preparation thereof |
| JP2010254733A (en) * | 2009-04-21 | 2010-11-11 | Sekisui Techno Seikei Kk | Resin composition for molding and method of production of molded article using the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102924857A (en) * | 2012-08-23 | 2013-02-13 | 上海金发科技发展有限公司 | Glass fiber reinforced styrene/maleic anhydride composite and preparation method thereof |
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Application publication date: 20120801 |