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Flame-retardant reinforced high temperature nylon composite material and its preparation method

A nylon composite material and composite material technology are applied in the field of flame retardant reinforced high temperature nylon composite material and its preparation to achieve the effects of improving strength, improving processing performance and improving fluidity

Inactive Publication Date: 2015-01-21
DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low-cost high-temperature materials with composite functions are relatively seldom reported

Method used

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  • Flame-retardant reinforced high temperature nylon composite material and its preparation method
  • Flame-retardant reinforced high temperature nylon composite material and its preparation method
  • Flame-retardant reinforced high temperature nylon composite material and its preparation method

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Effect test

Embodiment 1

[0045] A flame-retardant reinforced high-temperature nylon composite material is made by blending materials including the following raw materials in parts by weight:

[0046] 5 parts of high temperature nylon PPA, 3 parts of medium viscosity nylon PA66, 15 parts of glass fiber, 15 parts of brominated flame retardant, 4 parts of metal oxide flame retardant, 0.4 part of antioxidant, 0.1 part of lubricant and 0.1 part of coupling agent.

[0047] The high-temperature nylon PPA is preferably polyphthalamide, such as polyphthalamide produced by DuPont.

[0048] The intrinsic viscosity of medium viscosity nylon PA66 can be 2.4-3.0, preferably 2.6-2.7, such as PA66 produced by Shenma Group with the model number EPR27.

[0049] The glass fiber is any one or both of long glass fiber and short glass fiber with a diameter of 13-14 μm, preferably with a diameter of 14 μm, such as long fiber 910A produced by Jushi Group.

[0050] Preferably the glass fibers are hydrolysis resistant glass fi...

Embodiment 2

[0057] The difference between the present embodiment and embodiment 1 is that the parts by weight of raw materials are different, specifically as follows:

[0058] 65 parts of high temperature nylon PPA, 15 parts of medium viscosity nylon PA66, 50 parts of glass fiber, 22 parts of brominated flame retardant, 10 parts of metal oxide flame retardant, 1 part of antioxidant, 1 part of lubricant and 1 part of coupling agent.

Embodiment 3

[0060] The difference between the present embodiment and embodiment 1 is that the parts by weight of raw materials are different, specifically as follows:

[0061] 45 parts of high temperature nylon PPA, 8 parts of medium viscosity nylon PA66, 35 parts of glass fiber, 17 parts of brominated flame retardant, 6 parts of metal oxide flame retardant, 0.7 part of antioxidant, 0.6 part of lubricant and 0.6 part of coupling agent.

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Abstract

The invention discloses a flame-retardant reinforced high temperature nylon composite material. The composite material is prepared by blending the following raw materials, by weight, 25-65 parts of PPA, 3-15 parts of PA66, 15-50 parts of glass fiber, 15-22 parts of a bromine family flame retardant, 4-10 parts of a metal oxide flame retardant, 0.4-1 part of an antioxidant, 0.1-1 part of a lubricant and 0.1-1 part of a coupling agent. The invention also discloses a preparation method of the composite material. The method comprises the following steps: uniformly mixing the above raw materials except the glass fiber in a mixer, pouring the obtained mixture into a storage hopper under a feeding speed of 16-20hz, adding the mixture to an extruder, carrying out shearing blending, adding the glass fiber, carrying out melt extrusion, and granulating to obtain the composite material, wherein the extrusion speed is 320-400rpm, and the processing temperature is 280-310DEG C. The composite material has the advantages of high temperature resistance, high strength, good fluidity, good processing performance, good flame retardation property, and hydrolysis resistance.

Description

technical field [0001] The invention relates to the technical field of high-temperature nylon composite materials, in particular to a flame-retardant reinforced high-temperature nylon composite material and a preparation method thereof. Background technique [0002] At present, with the increasing demand for the development of domestic high-tech materials, especially for low-cost high-temperature plastics, high-performance has become the focus of market development. At present, the main high-temperature plastics used in the market are PEEK, PEI, PSU, LCP, PPS and so on. These materials are excellent in high temperature resistance, strength, chemical resistance, dimensional stability and electrical properties. However, since the raw materials are basically imported, the price is high. Domestic patent CN 103160120 develops a product with HTN high-temperature nylon as the substrate, which is mainly reinforced by glass fiber blending and reduces product cost. However, with the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L25/06C08K13/04C08K7/14C08K3/22B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/92704C08L2205/03C08L25/06C08K13/04C08K7/14C08K3/2279
Inventor 李志成刘胜熊培淇
Owner DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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