Corrosion-resistant POK/glass fiber masterbatch applied to automobile parts and preparation method of corrosion-resistant POK/glass fiber masterbatch

A technology of auto parts and glass fiber masterbatch, which is applied in the field of modification of polymer composite materials, can solve the problems of overall material performance degradation, corrosion resistance degradation, anti-alcoholysis agent or alcoholysis-resistant agent decomposition, etc., to achieve improvement Hydroalcolysis resistance, good effect on sample surface

Pending Publication Date: 2021-02-12
5ELEM HI TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult for ordinary nylon materials to meet the above requirements, and it is imminent to develop materials with excellent mechanical properties, hydrolysis resistance and alcoholysis resistance.
[0003] Most of the methods of alcoholysis resistance modification in the prior art are by adding anti-alcoholysis agents or alcoholysis-resistant agents. Although the alcoholysis-resistant properties of the material are improved, the overall performance of the material will be greatly reduced
At the same time, under the action of high processing temperature and shear stress, the anti-alcoholysis agent or anti-alcoholysis agent may decompose, resulting in a decrease in the overall corrosion resistance of the material

Method used

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  • Corrosion-resistant POK/glass fiber masterbatch applied to automobile parts and preparation method of corrosion-resistant POK/glass fiber masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A corrosion-resistant POK / glass fiber masterbatch applied to auto parts, comprising the following components and parts by weight:

[0037] POK resin: 27.7%; glass fiber GF: 60%; glass microspheres: 7%; high-density polyethylene grafted maleic anhydride: 4%; a mixture of amines and phosphites with a mass ratio of 1:1: 0.2 %; calcium stearate: 0.2%; hyperbranched polyester: 0.6%; release agent: 0.3%.

[0038] Its preparation method comprises the following steps:

[0039] (1) POK resin, glass beads and various additives are mixed in the mixer at a high speed (3000 rpm) and then added from the main feeding port;

[0040] (2) The glass fiber is fed into double (or single) screw extruder by means of double-side feeding for melt extrusion; the extrusion temperature is 240°C, and the screw speed is 400rpm;

[0041] (3) The composition can be obtained by granulating with a granulator; the particle length is 9mm.

Embodiment 2

[0043] A corrosion-resistant POK / glass fiber masterbatch applied to auto parts, comprising the following components and parts by weight:

[0044] POK resin: 13%; glass fiber GF: 70%; glass microspheres: 10%; high-density polyethylene grafted maleic anhydride: 5%; a mixture of amines and phosphites with a mass ratio of 1:1: 0.3 %; zinc stearate: 0.3%; hyperbranched polyester: 0.9%; lubricant: 0.5%.

[0045] Its preparation method is basically the same as Example 1.

Embodiment 3

[0047] A corrosion-resistant POK / glass fiber masterbatch applied to auto parts, comprising the following components and parts by weight:

[0048] POK resin: 53.3%; glass fiber GF: 40%; glass microspheres: 3.1%; high-density polyethylene grafted maleic anhydride: 3%; a mixture of amines and phosphites with a mass ratio of 1:1: 0.1 %; calcium ricinoleate: 0.1%; hyperbranched polyester: 0.3%; flow enhancer: 0.1%.

[0049] Its preparation method is basically the same as Example 1.

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Abstract

The invention discloses corrosion-resistant POK/glass fiber masterbatch applied to automobile parts and a preparation method of the corrosion-resistant POK/glass fiber masterbatch. The corrosion-resistant POK/glass fiber masterbatch comprises the following components in parts by weight: 13-53.3% of POK resin, 40-70% of glass fibers, 3-10% of glass beads, 3-5% of a compatilizer, 0.1-0.3% of an antioxidant, 0.1-0.3% of a heat-resistant stabilizer, 0.3-0.9% of a glass fiber leakage inhibitor and 0.1-0.5% of other processing stabilizers. According to the POK/glass fiber masterbatch disclosed by the invention, on the premise of not adding an alcoholysis-resistant agent or an alcoholysis-resistant agent, the hydrolysis and alcoholysis resistance is greatly improved, the alcoholysis resistance can meet the test requirements of TL-VW774, the surface of the sample is good, cracking is avoided, and the advantages of corrosion resistance, high heat resistance and high mechanical property are achieved,after composite materials such as nylon are added, automobile parts with corrosion resistance requirements can be manufactured, and meanwhile, the composite material can also be widely applied tothe fields of plastic parts of machinery, building materials, sports and the like.

Description

technical field [0001] The invention belongs to the technical field of modification of polymer composite materials, and in particular relates to a corrosion-resistant POK / glass fiber masterbatch applied to auto parts and a preparation method thereof. Background technique [0002] With the rapid development of the automobile industry, replacing steel with plastic has become the trend and direction of the development of automobile materials. Due to its excellent heat resistance, wear resistance, self-lubrication, and mechanical properties, glass fiber reinforced nylon materials have been widely used in water chamber parts of automobiles, such as thermostat housings, water tank joints, etc. Since the automobile water chamber belongs to the automobile cooling system, it needs to be in the environment of high and low temperature and coolant for a long time, so the material is required to be resistant to the corrosion of ethylene glycol solution and other chemical corrosive agents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L73/00C08L51/06C08L67/00C08K13/06C08K9/06C08K7/28C08K7/14C08K5/098C08J3/22
CPCC08J3/226C08J2373/00C08J2451/06C08J2467/00C08K13/06C08K9/06C08K7/28C08K7/14C08K5/098
Inventor 沙月华徐莉莉陈俊琛黄骥
Owner 5ELEM HI TECH CORP
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