High impact resistance fiberglass reinforced fire retardant engineering plastics and preparation method

A technology of engineering plastics and high impact resistance, which is applied in the preparation field of PA6/ABS alloy, the high impact glass fiber reinforced flame retardant engineering plastics, can solve the problem of poor mechanical properties, large interfacial tension between two phases, and large difference in solubility parameters and other problems, to achieve the effect of high mechanical strength, high impact strength and high dimensional stability

Inactive Publication Date: 2008-11-26
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PA6 is a polymer with crystallinity, strong polarity and low melt viscosity, and ABS is a polymer with non-crystallization and weak polarity, the solubility parameters of the two are quite different, which is a thermodynamic difference. Compatible, simple blending leads to high interfacial tension between the two phases, resulting in poor mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take PA6, ABS, SAM, nitrile rubber, flame retardant, 1010 / 168 (1:1), TAF and other ingredients, and put all the raw materials into a high-speed mixer for blending according to the following components:

[0028] PA6 30;

[0029] ABS 20;

[0030] SAM 5

[0031] Nitrile rubber 5;

[0032] Flame retardant 14;

[0033] 1010 / 168(1:1) 0.4;

[0034] TAF 0.6.

[0035] Then put the blended material into the twin-screw extruder, and at the same time add 25 parts of glass fiber to the second half of the twin-screw extruder to knead and granulate together. The processing temperature is 240°C and the screw speed is 300 rpm. ; Then make a standard sample by injection molding, and finally test the mechanical properties of the finished product according to the national standard GB13525 / T-92, and the test results are shown in Table 1.

[0036] Table 1: The performance test data of the alloy obtained in Example 1

[0037] High impact glass fiber reinforced flame retardan...

Embodiment 2

[0039] Take PA6, ABS, SAM, nitrile rubber, flame retardant, 1010 / 168 (1:1), TAF and other ingredients, and put all the raw materials into a high-speed mixer for blending according to the following components:

[0040] PA6 34;

[0041] ABS 13;

[0042] SAM 5;

[0043] Nitrile rubber 5;

[0044] Flame retardant 12;

[0045] 1010 / 168(1:1) 0.4;

[0046] TAF 0.6.

[0047] Then put the blended material into the twin-screw extruder, and at the same time add 30 parts of glass fiber to the second half of the twin-screw extruder to knead and granulate together. The processing temperature is 240°C and the screw speed is 300 rpm. ; Make a standard sample through injection molding, and finally test the mechanical properties of the finished product according to the national standard GB13525 / T-92, and the test results are shown in Table 2.

[0048] Table 2: The performance test data of the alloy obtained in Example 2

[0049] High impact glass fiber reinforced flame retarda...

Embodiment 3

[0052] Take PA6, ABS, SAM, nitrile rubber, flame retardant, 1010 / 168 (1:1), TAF and other ingredients, and put all the raw materials into a high-speed mixer for blending according to the following components:

[0053] PA6 50;

[0054] ABS 7;

[0055] SAM 5;

[0056] Nitrile rubber 5;

[0057] Flame retardant 12;

[0058] 1010 / 168(1:1) 0.4;

[0059] TAF 0.6.

[0060]Then put the blended material into the twin-screw extruder, and at the same time add 20 parts of glass fiber to the second half of the twin-screw extruder to knead and granulate together. The processing temperature is 240°C and the screw speed is 300 rpm. ; Make a standard sample through injection molding, and finally test the mechanical properties of the finished product according to the national standard GB13525 / T-92, and the test results are shown in Table 3.

[0061] Table 3: The performance test data of the alloy obtained in embodiment 3

[0062] High impact glass fiber reinforced flame retard...

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Abstract

The invention discloses a high-impact glass fiber reinforced flame retardant engineering plastic and a preparation method thereof. Besides glass fiber, 30-60 parts of polycaprolactam, 8-25 parts of acrylonitrile-butadiene-styrol copolymer, 3-6 parts of compatilizer, 4-10 parts of toughener, 12-16 parts of flame retardant, 0.3-0.5 parts of antioxidant and 0.3-0.8 parts of lubricant are put in a high-mixing machine to blend for 2-5 minutes, then the blending material is put in a double screw extruder; meanwhile, 18-30 parts of glass fiber are put in the rear half section of the double screw extruder to mix together to be granulated and molded; wherein, the processing temperature is 180-245 DEG C and the screw speed is 240-560 revolutions per minute. The prepared high-impact glass fiber reinforced flame retardant engineering plastic is characterized by high size stability, large mechanical strength, excellent heat resistance, high combustibility that is up to UL94 V-0(1.6mm), etc.

Description

technical field [0001] The invention belongs to the technical field of plastic modification treatment, in particular to a PA6 / ABS (polycaprolactam / acrylonitrile-butadiene-styrene copolymer) alloy and the preparation of the high-impact glass fiber reinforced flame-retardant engineering plastics method. Background technique [0002] At present, PA (Polyamide, polyamide) and ABS (Acrylonitrile-Butadiene-Styrene, acrylonitrile-butadiene-styrene copolymer) can combine the crystallinity of PA and the non-crystallinity of ABS, and the resulting PA / ABS alloy It has the characteristics of excellent formability, low water absorption, dimensional stability, chemical resistance, oil resistance, heat resistance, slip resistance and wear resistance, so it becomes an ideal material for manufacturing automobile body panels and other auto parts. [0003] Although PA6 has the advantages of wear resistance, solvent resistance, oil resistance, and wide service temperature, it also has shortcom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K9/06C08J5/08B29C47/40B29C47/92B29B9/12C08L55/02C08L51/06C08L9/02C08K5/02C08K3/22C08K7/14B29C48/40B29C48/92B29C48/95
CPCC08K5/0016C08L9/02B29C47/92C08L51/006C08J2377/02C08L77/02C08L55/02C08K5/005C08F287/00C08L9/06C08K5/0066C08J5/043C08L51/00C08K7/14B29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/9259B29C2948/92885B29C2948/92895B29C48/95C08L2666/02C08L2666/14C08L2666/04C08L2666/24
Inventor 汪洋
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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