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A kind of anti-aging PPA composite material and preparation method thereof

A composite material and anti-aging technology, applied in the field of polymer materials, can solve the problems of low heat resistance, thermal stability and aging resistance of polyphthalamide, reducing the protection strength of products to protected objects, cracking and other problems

Active Publication Date: 2021-09-14
广东京兆工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the heat resistance, thermal stability and aging resistance of polyphthalamide (PPA), which is currently used in the field of housing protection such as bearing housings, housings, and electrical components, are relatively low. , prone to aging phenomena such as cracking and hardening, which reduces the protection strength of the product to the protected object. It is necessary to modify the performance of the PPA composite material to improve the service life of the product

Method used

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  • A kind of anti-aging PPA composite material and preparation method thereof
  • A kind of anti-aging PPA composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of aging-resistant PPA composite material, this material comprises the raw material of following weight portion:

[0060] Polyphthalamide 30 parts

[0061] 3 parts polyphenylene sulfide

[0062] 10 parts polytetrafluoroethylene

[0063] 2 parts fiberglass

[0064] Compound synergist 3 parts

[0065] Modified reinforced nylon 10 parts

[0066] Antioxidant 2 parts

[0067] 3 parts of coupling agent

[0068] 1 part flame retardant

[0069] Lubricant 1 part.

[0070] Each part of the composite synergist includes 2 parts of zinc borate, 5 parts of glass powder, 2 parts of mica powder, 2 parts of zinc oxide and 1-3 parts of montmorillonite.

[0071] Each part of the modified reinforced nylon includes the following raw materials in parts by weight:

[0072] Nylon 35 parts

[0073] Toughener 2 parts

[0074] Chopped fiberglass 5 parts

[0075]Modified ethylene bis fatty acid amide 5 parts.

[0076] The modified reinforced nylon is prepared by the following s...

Embodiment 2

[0090] A kind of aging-resistant PPA composite material, this material comprises the raw material of following weight portion:

[0091] Polyphthalamide 35 parts

[0092] 4 parts polyphenylene sulfide

[0093] 11 parts polytetrafluoroethylene

[0094] 3 parts fiberglass

[0095] Compound synergist 4 parts

[0096] Modified reinforced nylon 14 parts

[0097] Antioxidant 3 parts

[0098] 4 parts of coupling agent

[0099] Flame retardant 1.5 parts

[0100] Lubricant 1.2 parts.

[0101] Each part of the composite synergist includes 3 parts of zinc borate, 6 parts of glass powder, 2.2 parts of mica powder, 2.5 parts of zinc oxide and 1-3 parts of montmorillonite.

[0102] Each part of the modified reinforced nylon includes the following raw materials in parts by weight:

[0103] Nylon 38 parts

[0104] Toughener 4 parts

[0105] 6 parts chopped fiberglass

[0106] Modified ethylene bis fatty acid amide 6 parts.

[0107] The modified reinforced nylon is prepared by the ...

Embodiment 3

[0121] A kind of aging-resistant PPA composite material, this material comprises the raw material of following weight portion:

[0122] Polyphthalamide 40 parts

[0123] 5 parts polyphenylene sulfide

[0124] 13 parts polytetrafluoroethylene

[0125] 4 parts fiberglass

[0126] Compound synergist 5 parts

[0127] Modified reinforced nylon 11.5 parts

[0128] Antioxidant 3.5 parts

[0129] 4.5 parts of coupling agent

[0130] Flame retardant 2 parts

[0131] Lubricant 1.5 parts.

[0132] Each part of the composite synergist includes 3.5 parts of zinc borate, 8 parts of glass powder, 2.5 parts of mica powder, 3 parts of zinc oxide and 1-3 parts of montmorillonite.

[0133] Each part of the modified reinforced nylon includes the following raw materials in parts by weight:

[0134] Nylon 42 parts

[0135] Toughener 5 parts

[0136] Chopped glass fiber 6.5 parts

[0137] Modified ethylene bis fatty acid amide 8 parts.

[0138] The modified reinforced nylon is prepared ...

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Abstract

The invention relates to the technical field of polymer materials, in particular to an aging-resistant PPA composite material and a preparation method thereof. The PPA composite material includes the following raw materials in parts by weight: 30-50 parts of polyphthalamide, polyphenylene sulfide 3‑8 parts, 10‑15 parts of polytetrafluoroethylene, 2‑6 parts of glass fiber, 3‑8 parts of composite synergist, 10‑13 parts of modified reinforced nylon, 2‑5 parts of antioxidant, coupling agent 3‑7 parts, 1‑3 parts of flame retardant and 1‑2 parts of lubricant. The PPA composite material of the present invention has properties such as good strength, toughness, dimensional stability, high temperature resistance and impact resistance, and the PPA composite material is improved through the compatible cross-linking polymerization of polyphenylene sulfide, polytetrafluoroethylene and PPA. At the same time, the strength and thermal stability of the PPA composite material are improved by modifying the reinforced nylon, so that the prepared PPA composite material has good processing and forming performance, low cost and high use value.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an aging-resistant PPA composite material and a preparation method thereof. Background technique [0002] Polyphthalamide (PPA) is a kind of polyamide (PA) material. Under high temperature and high humidity, the tensile strength of PPA is about 20% higher than that of PA6, and the flexural modulus is 20% higher than that of PA. %, the hardness is higher, it can resist long-term tensile creep, and has good dimensional stability, gasoline, grease and coolant resistance, chemical resistance and other properties are better than PA6 and PA66, mainly used in automobile headlights Reflectors, bearing housings, pulleys, sensor housings, fuel line components and electrical components. [0003] However, the heat resistance, thermal stability and aging resistance of polyphthalamide (PPA), which is currently used in the field of housing protection such as bearing housings, housing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L81/02C08L27/18C08L77/00C08K13/04C08K5/20C08K3/38C08K3/40C08K3/34
CPCC08K2003/387C08L77/06C08L2201/08C08L2205/035C08L81/02C08L27/18C08L77/00C08K13/04C08K5/20C08K3/38C08K3/40C08K3/34
Inventor 谭院良
Owner 广东京兆工程塑料有限公司
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