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Flame-retardant and antistatic nylon composite material and preparation method thereof

A nylon composite material, flame retardant and antistatic technology, applied in the field of polymer composite materials, can solve the problems of reduced use value of composite materials, poor antistatic performance, low antistatic performance, etc., and achieve long-term antistatic effect. The effect of high antistatic property and low production cost

Inactive Publication Date: 2014-06-25
ZHEJIANG AOQIANG ENVIRONMENT PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] ① The antistatic performance of the system is low, and the antistatic performance is not durable;
[0004] ②The addition of a large amount of flame retardants and antistatic agents seriously reduces the mechanical properties of the system and greatly reduces the use value of composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The pure nylon 6 pellets were dried in a blast drying oven at 110°C for 4 hours, and then put into an injection molding machine for injection molding into standard splines, and the barrel temperature was controlled at 190-260°C.

[0029] Mechanical performance test of the nylon 6 sample prepared above: tensile strength 58.09MPa, elastic modulus 640.8MPa, flexural strength 20.31MPa, flexural modulus 435.4MPa, impact strength 14.60KJ / m 2 , volume resistivity 6.2×10 14 Ohm-cm.

Embodiment 2

[0031] Dry nylon 6 in a blast drying oven at 90 degrees for 4 hours, then mix it with 10% conductive carbon black, 8% melamine cyanurate, and 0.4% antioxidant 1010 in a high-speed mixer Then put it into the twin-screw extruder to extrude and cut into pellets. The temperature of the barrel is controlled at 190-260°C, and the vacuum device is kept open.

[0032] The mechanical properties of the composite material prepared above were tested: tensile strength 55.26MPa, elastic modulus 684MPa, flexural strength 29.64MPa, flexural modulus 447.6MPa, impact strength 12.64KJ / m 2 , volume resistivity 8.4×10 13 Ohm-cm, flame retardant performance reaches UL94V-1 level.

Embodiment 3

[0034] Nylon 6 / ethylene-vinyl acetate copolymer (vinyl acetate content 18%) that mass ratio is 40 / 60 is placed in blast drying box 90 degree of drying 4 hours, then it and 6% conductive carbon black, 8 % melamine cyanurate, 0.4% antioxidant 1010, mixed in a high-speed mixer and then added to a twin-screw extruder to extrude and pelletize. The temperature of the barrel is controlled at 190-260 ° C, and the vacuum device is kept open.

[0035] The mechanical properties of the composite material prepared above were tested: tensile strength 54.58MPa, elastic modulus 766MPa, flexural strength 32.72MPa, flexural modulus 457.1MPa, impact strength 11.47KJ / m 2 , volume resistivity 5.4×10 6 Ohm-cm, flame retardant performance reaches UL94V-1 level.

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Abstract

The invention relates to a flame-retardant and antistatic nylon composite material and a preparation method thereof and belongs to the field of nylon modification. The nylon composite material is prepared from the following components in parts by mass: 4%-12% of conductive filler, 6%-12% of halogen-free flame retardant, 0.2%-1% of antioxidant, 0-4% of inorganic silicate and the balance of nylon resin and ethylene-vinyl acetate copolymer. According to the flame-retardant and antistatic nylon composite material, the flame retardance and the antistatic property of a nylon material are greatly improved, the mechanical property is not influenced, high physical property balance is achieved, meanwhile, the operation process is simple, the preparation cost is low, and the flame-retardant and antistatic nylon composite material is suitable for industrial production.

Description

(1) Technical field [0001] The invention relates to a polymer composite material with excellent comprehensive properties, in particular to a flame-retardant and antistatic nylon composite material and its preparation. (2) Background technology [0002] The flame retardant and antistatic research of nylon is an important research topic in the field of polymer material science and engineering. The main way to realize the flame retardant and antistatic function of nylon is the compounding of matrix, flame retardant and conductive particles. The current research on flame retardant and antistatic nylon is simply blending flame retardant, antistatic agent and nylon matrix. Although this method can achieve the flame retardant and antistatic functions of the nylon composite system to a certain extent, the composite material produced has obvious defects: [0003] ① The antistatic performance of the system is low, and the antistatic performance is not durable; [0004] ②The addition...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L77/00C08L77/02C08L77/06C08K13/02C08K3/34C08K3/04C08K3/22C08J3/22B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92552B29C2948/9258B29C2948/92704C08K2201/001C08K2201/003C08L23/0853C08L77/02C08L77/06C08L2201/02C08L2201/04C08K13/02C08K3/04C08K5/34928C08K2003/2296C08K2003/2231C08K5/521C08K2003/2224C08K3/346C08K3/34B29C48/04B29C48/40B29C2948/92561B29C2948/9259B29C2948/92761B29C2948/92828B29C2948/92895
Inventor 徐亮陈树清王伟章张少军黄孝肖
Owner ZHEJIANG AOQIANG ENVIRONMENT PROTECTION TECH
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