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Preparation method of high-toughness and wear-resistant automobile hub protection ring

A technology of protective ring and compatibilizer, which is applied in the field of preparation of high-toughness and wear-resistant automobile wheel hub protective ring, can solve the problems of low wear resistance, low toughness, scratches of the wheel hub, etc., and achieve improved flame retardancy and corrosion resistance, high toughness and wear resistance, the effect of improving wear resistance

Inactive Publication Date: 2021-01-05
连云港创诚塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The wheel hub is a barrel-shaped metal part that is supported by the inner profile of the tire and is centered on the shaft. At present, the wheel hub of the car is mostly made of aluminum alloy. The aluminum alloy hub has the advantages of fast heat dissipation, safe use and light weight. The material texture is soft, and it is easy to collide with the roadside or flower bed when the car is driving or parking, which will easily cause scratches, damage or even pinch the tire. The wheel protection ring is used to protect the wheel hub of the car and protect the wheel hub from being scratch damage
[0003] At present, the wheel protection ring is mostly made of PE, TPE, SBR or PA, and there are two types of circular open-ring structure and circular non-opening structure. By inserting the plug-in of the protection ring into the sidewall of the tire, the protection ring is set on the stopper of the wheel hub. On the ring, let the inflated tire press the insert to fix it, so as to protect the car wheel hub and prevent the car wheel hub from being scratched. However, although the existing wheel hub protection ring can protect the car hub, it generally has a short service life and a Disadvantages of low abrasive performance and low toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a high-toughness wear-resistant automobile hub protection ring, specifically comprising the following steps:

[0022] (1) First mix 70 parts of nylon 66, 3 parts of maleic acid, 1 part of bis(2-ethylhexyl) phthalate, N-(β-aminoethyl)-γ-aminopropyltrimethoxy Put 1 part of silane, 3 parts of 2,6-di-tert-butyl-p-methylphenol, 2 parts of brominated epoxy resin, 2 parts of glass fiber, and 3 parts of nano-titanium dioxide into the extruder at a temperature of 280-300 ° C Premixing at the bottom to obtain modified nylon 66;

[0023] (2) Continue to add 15 parts of polyethersulfone resin to the modified nylon 66, and keep the temperature at 300-320°C for blending to obtain a phase-stable blend A;

[0024] (3) Inject the blend A into the mold cavity with high pressure, maintain the pressure, and cool and solidify to obtain a high-toughness wear-resistant automobile wheel hub protection ring.

Embodiment 2

[0026] A method for preparing a high-toughness wear-resistant automobile hub protection ring, specifically comprising the following steps:

[0027] (1) First mix 80 parts of nylon 66, 1 part of maleic acid, 1 part of bis(2-ethylhexyl) phthalate, N-(β-aminoethyl)-γ-aminopropyltrimethoxy Put 1 part of silane, 2 parts of 2,6-di-tert-butyl-p-methylphenol, 2 parts of brominated epoxy resin, 3 parts of glass fiber, and 5 parts of nano-titanium dioxide into the extruder at a temperature of 280-300 ° C Premixing at the bottom to obtain modified nylon 66;

[0028] (2) Continue to add 5 parts of polyethersulfone resin to the modified nylon 66, and keep the temperature at 300-320°C for blending to obtain a phase-stable blend A;

[0029] (3) Inject the blend A into the mold cavity with high pressure, maintain the pressure, and cool and solidify to obtain a high-toughness wear-resistant automobile wheel hub protection ring.

Embodiment 3

[0031] A method for preparing a high-toughness wear-resistant automobile hub protection ring, specifically comprising the following steps:

[0032] (1) First mix 75 parts of nylon 66, 1 part of maleic acid, 1 part of bis(2-ethylhexyl) phthalate, N-(β-aminoethyl)-γ-aminopropyltrimethoxy Put 1 part of silane, 2 parts of 2,6-di-tert-butyl-p-methylphenol, 2 parts of brominated epoxy resin, 3 parts of glass fiber, and 5 parts of nano-titanium dioxide into the extruder at a temperature of 280-300 ° C Premixing at the bottom to obtain modified nylon 66;

[0033] (2) Continue to add 10 parts of polyethersulfone resin to the modified nylon 66, and keep the temperature at 300-320°C for blending to obtain a phase-stable blend A;

[0034] (3) Inject the blend A into the mold cavity with high pressure, maintain the pressure, and cool and solidify to obtain a high-toughness wear-resistant automobile wheel hub protection ring.

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Abstract

The invention relates to a preparation method of a high-toughness and wear-resistant automobile hub protection ring. The preparation method specifically comprises the following steps of: (1) preparingmodified nylon 66; (2) blending the modified nylon 66 with polysulfone resin; and (3) preparing the high-toughness and wear-resistant automobile hub protection ring through injection molding. The high-toughness and wear-resistant automobile hub protection ring comprises the following components in parts by weight: 70-80 parts of nylon 66, 0.1-3 parts of a compatibilizer, 0.1-2 parts of a plasticizer, 0.5-2 parts of a coupling agent, 1-5 parts of an antioxidant, 1-5 parts of a flame retardant, 1-5 parts of glass fibers, 1-5 parts of nano titanium dioxide and 5-15 parts of polysulfone resin. The nylon 66 is modified by adding the glass fibers and the nano titanium dioxide, and the polysulfone resin and the modified nylon 66 are compounded and copolymerized, so that the prepared automobile hub protection ring has relatively high toughness and wear resistance.

Description

technical field [0001] The invention relates to the field of auto parts production, in particular to a method for preparing a high-toughness and wear-resistant automobile hub protection ring. Background technique [0002] The wheel hub is a barrel-shaped metal part that is supported by the inner profile of the tire and is centered on the shaft. At present, the wheel hub of the car is mostly made of aluminum alloy. The aluminum alloy hub has the advantages of fast heat dissipation, safe use and light weight. The material texture is soft, and it is easy to collide with the roadside or flower bed when the car is driving or parking, which will easily cause scratches, damage or even pinch the tire. The wheel protection ring is used to protect the wheel hub of the car and protect the wheel hub from being Scratch damage. [0003] At present, the wheel protection ring is mostly made of PE, TPE, SBR or PA, and there are two types of circular open-ring structure and circular non-open...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L63/00C08L81/06C08K13/04C08K7/14C08K3/22C08K5/544C08K5/12
CPCC08K2003/2227C08K2003/2241C08K2201/011C08L77/06C08L2201/02C08L2201/08C08L2205/03C08L2205/08C08L63/00C08L81/06C08K13/04C08K7/14C08K3/22C08K5/544C08K5/12
Inventor 张保华
Owner 连云港创诚塑胶科技有限公司