CN101195707B - Glass fiber-reinforced nylon 6-polypropylene alloy material - Google Patents
Glass fiber-reinforced nylon 6-polypropylene alloy material Download PDFInfo
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- CN101195707B CN101195707B CN2007101729536A CN200710172953A CN101195707B CN 101195707 B CN101195707 B CN 101195707B CN 2007101729536 A CN2007101729536 A CN 2007101729536A CN 200710172953 A CN200710172953 A CN 200710172953A CN 101195707 B CN101195707 B CN 101195707B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention relates to glass fiber reinforcing nylon 6-polypropylene alloy material. The invention is characterized in that the invention adopts nylon 6 and polypropylene as the matrix resin, and under the condition that the addition level of plasticizer is not changed, the invention can achieve and is preferable to the mechanical property of the unilateral enforced nylon 6 material without polypropylene added, in particular to the impact property. The matrix resin, the plasticizer as well as the antioxidant are evenly mixed and then enter into a double screw extruder, simultaneously glass fiber is added from the special glass fiber opening of the double screw extruder, and the matrix resin, the plasticizer, the antioxidant and the glass fiber are cooled, dried and palletized to be produced into finished products after being mixed together and extruded. The invention has the advantages that the plasticizer can be self made, the cost of the alloy material is low, the invention has good impact property, and the other mechanical properties are kept unchanged basically.
Description
Technical field
The present invention relates to a kind of glass fiber-reinforced nylon 6-poly propylene alloy material, can be applicable to power tool and industry such as electric, belong to technical field of polymer materials.
Background technology
Nylon 6 is a kind of purposes engineering plastics very widely, make by caprolactam polymerization, its fusing point is 215～225 ℃, the use temperature scope is at-40 ℃～150 ℃, because common nylon 6 is subjected to the influence of temperature and environment, significantly changing can appear in performance, so its application is greatly limited.Therefore, can its over-all properties obviously be promoted by it is carried out filling enhancing modified.
Modification of nylon 6 materials can be widely used in industries such as power tool and electric connector.At present research is more is to add polyphenylene oxide (PPO) or acrylonitrile-butadiene-styrene copolymer (ABS) carries out the impact property that modification is used for improving material to it in nylon 6 (PA6), or the interpolation grafts improves the impact property of nylon 6-poly propylene alloy material in nylon 6-poly propylene alloy.But the cost that adds PPO and ABS in PA6 is higher; At present, people such as Wu Zhihua studies show that and add the impelling strength that methylene-succinic acid grafting PP can improve alloy material in PA6, but cost is higher, and other mechanical properties can obviously descend.And, about in glass fibre strengthens PA6, under the constant situation of toughner addition, by change molten finger the in the homopolymerization (molten about 12g/10min of finger) polypropylene consumption to improve the research of impact property also fewer, the patent documentation of being correlated with does not both at home and abroad appear in the newspapers.
Summary of the invention
What the purpose of this invention is to provide is a kind of cheap, the glass fiber-reinforced nylon 6-poly propylene alloy material of excellent property.
For realizing above purpose, technical scheme of the present invention provides a kind of glass fiber-reinforced nylon 6-poly propylene alloy material, it is characterized in that, is made by following raw materials by weight percent: (%)
Nylon 6 55-70,
Polypropylene 2-10,
Glass fibre 10-35,
Toughner 1-10,
Oxidation inhibitor 0.1-0.5,
Described toughner is a kind of anhydrides grafting elastomerics and polyacrylic polymer, is made by following raw materials by weight percent: (%)
Elastomerics 60-80,
Polypropylene 15-35,
Maleic anhydride 1-10,
Superoxide 0.1-0.5;
Described acrylic resin is molten how molten resin that refers in the homopolymerization of 10-15g/10min;
Described elastomerics is ethylene-octene copolymer POE.
Described Nylon 6 is the polyamide resin of range of viscosities at 2.7-2.9; Described glass fibre is the alkali-free glass fiber of the coupling agent modified processing of a kind of process, and diameter is the 6-17 micron;
Described maleic anhydride is a MALEIC ANHYDRIDE; Described superoxide is a 1,4 bis tert butyl peroxy isopropyl benzene.
Described oxidation inhibitor is four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester.
A kind of preparation method of glass fiber-reinforced nylon 6-poly propylene alloy material, adopting nylon 6 and polypropylene is matrix resin, as additive, is extruded into product with glass fibre behind the blended melting in forcing machine, as follows:
The first step. take by weighing raw material by weight percentage;
Second step. will enter twin screw extruder behind nylon 6, polypropylene, toughner, the oxidation inhibitor uniform mixing, add glass fibre at special glass fiber mouth place, complete processing is as follows: a district temperature 210-230 ℃, and two district temperature 220-240 ℃, three district temperature 220-240 ℃, four district temperature 220-240 ℃, five district temperature 230-250 ℃, six district temperature 240-260 ℃, seven district temperature 230-250 ℃, eight district temperature 220-240 ℃, nine district temperature 200-220 ℃; Residence time 1-3 minute, engine speed 250-350 rev/min.
The 3rd step. discharging, extrude postcooling, drying, pelletizing and get product.
The present invention adds a certain proportion of self-control toughner for strengthening at glass fibre among the PA6, by changing low-cost polyacrylic consumption, not only can obviously improve the impact property of material, and can keep other mechanical properties constant substantially again, can also reduce cost.
Advantage of the present invention is that alloy material is with low cost, has good impact property, and other mechanical properties remain unchanged substantially.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
In the embodiment composite-material formula, nylon 6 trades mark are PA6 M32800, and Xin Hui Meida Company in Guangzhou produces; The polypropylene trade mark is PP HP500N (molten about 12g/10min of finger), and CSPC company provides; The glass fibre trade mark is ER13-2000-988A, megalith group; The toughner self-control, be born in the year of horse maleic anhydride grafted elastomerics and polypropylene copolymer (MPOE), the trade mark is ZR1, it from Preparation Method is: the toughner prescription is made by following raw materials by weight percent: POE 70%, polipropene 25 %, MALEIC ANHYDRIDE 4.7%, 1,4-dual-tert-butyl peroxy isopropyl base benzene 0.3%, its preparation technology:
After elastomerics, polypropylene, maleic anhydride and superoxide mixed in high speed mixer, extrude through the twin screw blend and to make toughner.Complete processing is as follows: a district temperature 150-170 ℃, and two district temperature 160-180 ℃, three district temperature 160-180 ℃, four district temperature 170-190 ℃, five district temperature 180-200 ℃, six district temperature 180-200 ℃, seven district temperature 180-200 ℃, eight district temperature 170-190 ℃, nine district temperature 160-180 ℃; Residence time 1-3 minute, engine speed 200-250 rev/min, make toughner.
It is four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester that oxidation inhibitor is selected chemical name for use, and trade(brand)name Irganox 1010, and Switzerland Ciba company produces.
52A (length-to-diameter ratio is 40) the twin screw extruder production that the preparation of a kind of glass fiber-reinforced nylon 6-poly propylene alloy material of the present invention adopts Rhea company to produce, complete processing is as follows: a district temperature 210-230 ℃, two district temperature 220-240 ℃, three district temperature 220-240 ℃, four district temperature 220-240 ℃, five district temperature 230-250 ℃, six district temperature 240-260 ℃, seven district temperature 230-250 ℃, eight district temperature 220-240 ℃, nine district temperature 200-220 ℃; Residence time 1-3 minute, engine speed 250-350 rev/min.
Embodiment 1:
PA6 M32800 with 64%, 1% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Embodiment 2:
PA6 M32800 with 62%, 3% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Embodiment 3:
PA6 M32800 with 60%, 5% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Embodiment 4:
PA6 M32800 with 58%, 7% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Embodiment 5:
PA6 M32800 with 56%, 9% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Comparative Examples 1:
PA6 M32800 with 65%, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010,
With said components mixing at room temperature, afterwards in twin screw extruder production, processing conditions is in the super mixer:
220 ℃ of one district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Comparative Examples 2:
PA6 M32800 with 55%, 10% PP HP500N, 29.7% ER13-2000-988A, 5% ZR1,0.3% 1010, in super mixer with said components mixing at room temperature, in twin screw extruder production, processing conditions is afterwards: 220 ℃ of district's temperature, 230 ℃ of two district's temperature, 240 ℃ of three district's temperature, 240 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 245 ℃ of seven district's temperature, 235 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 2 minutes residence time, 300 rev/mins of engine speeds.
Mechanics Performance Testing:
The pellet for preparing is put into convection oven, and oven dry is 6 hours under 120 ℃ of conditions, and then that drying is good pellet carries out injection molding and prepares batten in injection moulding machine.About 70 ℃ of injection mold temperature.
The tensile property test is undertaken by ISO 527-2, and specimen size is 150*10*4mm, and draw speed is 10mm/min; The bending property test is undertaken by ISO 178, and specimen size is 80*10*4mm, and rate of bending is 2mm/min, and span is 64mm; Simple beam impact strength is undertaken by ISO 179, and specimen size is 55*6*4mm, and notch depth is 1/3rd of a sample thickness; Melt flow index (MFR) is undertaken by ISO1183, and test condition is 250 ℃, 2.16KG.
Comprehensive mechanical performance is by the tensile strength of test gained, and the numerical value of elongation at break, modulus in flexure and shock strength is evaluated;
Embodiment and Comparative Examples prescription and mechanical property are relatively
| Embodiment | 1 | 2 | 3 | 4 | 5 | - | - |
| Comparative Examples | - | - | - | - | - | 1 | 2 |
| PA6 M32800(％) | 64 | 62 | 60 | 58 | 56 | 65 | 55 |
| PP HP500N(％) | 1 | 3 | 5 | 7 | 9 | 0 | 10 |
| ZR1(％) | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 1010(％) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Glass fibre (%) | 29.7 | 29.7 | 29.7 | 29.7 | 29.7 | 29.7 | 29.7 |
| Tensile strength (MPa) | 142 | 143 | 142 | 141 | 141 | 140 | 142 |
| Elongation at break (%) | 3.2 | 3.3 | 3.2 | 3.4 | 3.4 | 3.5 | 3.6 |
| Modulus in flexure (MPa) | 6330 | 6317 | 6342 | 6321 | 6359 | 6310 | 6383 |
| Simply supported beam notched Izod impact strength (kJ/m 2) | 18.3 | 18.7 | 19.1 | 19.8 | 21.1 | 18 | 22 |
| Embodiment | 1 | 2 | 3 | 4 | 5 | - | - |
| Simply supported beam unnotched impact strength (kJ/m 2) | 65.4 | 67.2 | 69.3 | 72 | 73.3 | 62,1 | 75.6 |
Mechanical performance data as can be seen from table, after melting the finger polypropylene in the adding homopolymerization, the shock strength of material obviously rises, and, under the constant situation of ZR1, along with polyacrylic adding, its tensile strength and modulus in flexure significantly do not change, illustrate that polyacrylic absorption can improve the impact property of material really, and along with polyacrylic add-on increases, the also corresponding increase of its shock strength.
Claims (7)
1. a glass fiber-reinforced nylon 6-poly propylene alloy material is characterized in that, is made by following raw materials by weight percent: (%)
Nylon 6 55-70,
Polypropylene 2-10,
Glass fibre 10-35,
Toughner 1-10,
Oxidation inhibitor 0.1-0.5;
Described toughner is a kind of anhydrides grafting elastomerics and polyacrylic polymer, is made by following raw materials by weight percent: (%)
Elastomerics 60-80,
Polypropylene 15-35,
Maleic anhydride 1-10,
Superoxide 0.1-0.5;
Described acrylic resin is molten how molten resin that refers in the homopolymerization of 10-15g/10min;
Described elastomerics is ethylene-octene copolymer POE.
2. a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 1 is characterized in that described Nylon 6 is the polyamide resin of range of viscosities at 2.7-2.9.
3. a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 3 is characterized in that described glass fibre is the alkali-free glass fiber of the coupling agent modified processing of a kind of process, and diameter is the 6-17 micron.
4. a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 5 is characterized in that described maleic anhydride is a MALEIC ANHYDRIDE.
5. a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 5 is characterized in that described superoxide is a 1,4 bis tert butyl peroxy isopropyl benzene.
6. a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 1 is characterized in that, described oxidation inhibitor is four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester.
7. the preparation method of a kind of glass fiber-reinforced nylon 6-poly propylene alloy material according to claim 1, adopting nylon 6 and polypropylene is matrix resin, as additive, is extruded into product with glass fibre behind the blended melting in forcing machine, as follows:
The first step. take by weighing raw material by weight percentage;
Second step. will enter twin screw extruder behind nylon 6, polypropylene, toughner, the oxidation inhibitor uniform mixing, add glass fibre at special glass fiber mouth place, complete processing is as follows: a district temperature 210-230 ℃, and two district temperature 220-240 ℃, three district temperature 220-240 ℃, four district temperature 220-240 ℃, five district temperature 230-250 ℃, six district temperature 240-260 ℃, seven district temperature 230-250 ℃, eight district temperature 220-240 ℃, nine district temperature 200-220 ℃; Residence time 1-3 minute, engine speed 250-350 rev/min;
The 3rd step. discharging, extrude postcooling, drying, pelletizing and get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101729536A CN101195707B (en) | 2007-12-25 | 2007-12-25 | Glass fiber-reinforced nylon 6-polypropylene alloy material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101729536A CN101195707B (en) | 2007-12-25 | 2007-12-25 | Glass fiber-reinforced nylon 6-polypropylene alloy material |
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| CN101195707A CN101195707A (en) | 2008-06-11 |
| CN101195707B true CN101195707B (en) | 2010-08-11 |
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