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Fiberglass reinforced fire retardant engineering plastics and preparation method

A technology of engineering plastics and glass fiber, which is applied in the field of plastic modification treatment, can solve the problems of large difference in solubility parameters, large interfacial tension between two phases, thermodynamic incompatibility, etc., and achieves high dimensional stability, high mechanical strength, and heat resistance. Excellent effect

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 non-crystalline, weakly polar polymer, 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

[0025] Take PA6, ABS, SAM, 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:

[0026] PA6 30;

[0027] ABS 26;

[0028] SAM 4;

[0029] Flame retardant 14;

[0030] 1010 / 168(1:1) 0.4;

[0031] TAF 0.6.

[0032] 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.

[0033] Table 1: The performance test data of the alloy obtained in Example 1

[0034] Glass fiber reinforced flame retardant PA6 / ABS

Embodiment 2

[0036] Take PA6, ABS, SAM, 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:

[0037] PA6 40;

[0038] ABS 14;

[0039] SAM 3;

[0040] Flame retardant 12;

[0041] 1010 / 168(1:1) 0.4;

[0042] TAF 0.6.

[0043] 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.

[0044] Table 2: The performance test data of the alloy obtained in Example 2

[0045] Glass fiber reinforced flame retardant PA6 / ABS

Embodiment 3

[0047] Take PA6, ABS, SAM, 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:

[0048] PA6 60:

[0049] ABS 9;

[0050] SAM 3;

[0051] Flame retardant 12;

[0052] 1010 / 168(1:1) 0.4;

[0053] TAF 0.6.

[0054] Then put the blend into the twin-screw extruder, and at the same time add 15 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.

[0055] Table 3: The performance test data of the alloy obtained in embodiment 3

[0056] Glass fiber reinforced flame retardant PA6 / ABS

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Abstract

The invention discloses glass fiber reinforced flame retardant engineering plastic and a preparation method thereof. Besides glass fiber, 30-70 parts of polycaprolactam, 8-30 parts of acrylonitrile-butadiene-styrol copolymer, 3-6 parts of compatilizer, 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, 18-35 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 glass fiber reinforced flame retardant engineering plastic is characterized by high size stability, large mechanical strength, excellent heat resistance, etc. The combustibility can reach UL94 V-0(1.6mm) level, thus expanding the application in electronics.

Description

technical field [0001] The invention belongs to the technical field of plastic modification treatment, and in particular relates to a PA6 / ABS (polycaprolactam / acrylonitrile-butadiene-styrene copolymer) alloy and a preparation method of the glass fiber-reinforced flame-retardant engineering plastic. 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 shortcomings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K9/06B29C47/40C08J5/08B29B9/12C08L55/02C08L51/00C08K7/14B29C48/40
CPCC08K3/0041C08L55/02C08K3/0058C08F285/00C08L77/02C08K7/14C08L51/003C08K3/014C08K3/016B29C48/40C08L2666/14C08L2666/02C08L2666/24
Inventor 汪洋
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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