Preparation method for wear-resistant noise-reducing composite material

A composite material and sound-absorbing technology, which is applied in the field of preparation of wear-resistant and sound-absorbing composite materials, can solve problems such as high cost of addition, poor product appearance, and difficult molding, and achieve easy operation, excellent sound-absorbing performance, and good molding and processing. Effect

Inactive Publication Date: 2016-04-27
SHAANXI JUJIEHAN CHEM CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

These methods have a certain effect on improving the friction and wear properties, but the outstanding problems brought about are not high cost of addition, difficulty in forming, or poor appearance of products.

Method used

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Experimental program
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Embodiment Construction

[0012] A preparation method of wear-resistant and sound-absorbing composite material, characterized in that: adding a composite lubrication system composed of main lubricant, co-lubricant, sound-absorbing agent, wear-reducing agent and other related additives to POM, passing through a high-speed mixer Mix evenly, then extrude and granulate by twin-screw extruder, the temperature of the extruder is 170-200°C, and the temperature of the machine head is 195°C; the extruded particles are dried and injected into a wear-resistant and sound-absorbing composite material.

[0013] In the preparation method of a wear-resistant and sound-absorbing composite material described in the present invention, the POM is M90. The drying temperature is 95° C., and the drying time is 4 hours. The main lubricants include polycarboxylic acid esters and fatty acid polyol esters. The auxiliary lubricants are fatty amides. The sound deadening agent is polysiloxane. The wear reducing agent is polytetr...

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Abstract

The invention provides a preparation method for a wear-resistant noise-reducing composite material, which belongs to the field of material preparation. The preparation method is characterized by comprising the following steps: subjecting a composite lubrication system composed of a main lubricant, an assistant lubricant, a noise reducing agent, a friction reducing agent and other related auxiliary agents to uniform mixing via a high-speed mixer and then carrying out extrusion and granulation by using a double-screw extruder; and drying extruded particles and carrying out injection so as to obtain the wear-resistant noise-reducing composite material. The composite material prepared through improved process has excellent frictional wear characteristics, superior noise reduction performance, a high frictional property retention rate, good appearance and mechanical properties and good molding and processing performance; and the preparation method is simple, easy to operate and suitable for promotion and application in related fields.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a preparation method of a wear-resistant and sound-absorbing composite material. Background technique [0002] Plastic products are widely used in people's life, polyoxymethylene POM is a kind of thermoplastic engineering plastic with excellent comprehensive performance. Among all engineering plastics, the annual output of POM is second only to nylon and polycarbonate, ranking third. POM is widely used in machinery, automobiles, electronic and electrical industries, etc. for power transmission transmission parts, and it is also one of the earliest engineering plastics used as gears. However, ordinary POM can only be used as a component requiring self-lubricating performance under low-speed and low-load conditions. In order to make it adapt to higher requirements, such as better wear resistance, lower wear and tear, and low or even no noise during use, the followi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L59/00C08L83/04C08L27/18C08K5/10C08K5/103C08K5/20
CPCC08L59/00C08L2205/03
Inventor 李长英
Owner SHAANXI JUJIEHAN CHEM CO LTD
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