Wear-resistant and heat-resistant modified polyformaldehyde composite material and preparation method thereof

A composite material, polyoxymethylene technology, applied in the field of modified polyoxymethylene composite materials, can solve the problems that pure polyoxymethylene cannot meet the use requirements, achieve excellent mechanical properties and friction resistance, reduce capacity, and have good application prospects.

Inactive Publication Date: 2013-07-10
SUZHOU SUNWAY POLYMER
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Problems solved by technology

However, with the development of material technology and the improvement of application requirements, the performance of pure polyoxymethylene can no longer meet the requirements of use, so the modified varieties of POM continue to appear

Method used

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  • Wear-resistant and heat-resistant modified polyformaldehyde composite material and preparation method thereof

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Embodiment approach

[0018] Table 1 embodiment 1-4 and the parts by weight of each composition of comparative example

[0019] Among them, the compatibilizer is PP-g-MAH; the antioxidant is antioxidant 1010 and antioxidant 168; other additives are color additives, light stabilizers and surface modifiers.

[0020] According to the components of each embodiment in Table 1 and the parts by weight of each component, a kind of nano TiO with anti-light aging is prepared respectively 2 / ABS composite material, the specific process is as follows:

[0021] (1) Polytetrafluoroethylene surface pretreatment: Weigh polytetrafluoroethylene according to the weight described in claim 1, and after drying, immerse in frozen THF sodium naphthalene solution for 5 minutes, rinse with acetone for 2-3 minutes after the reaction is completed. times, suction filtration, put into 80 ° vacuum oven and dry to constant weight;

[0022] (2) Weighing raw materials: weighing each component according to the wear-resistan...

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Abstract

The invention discloses a wear-resistant and heat-resistant modified polyformaldehyde composite material comprising the following components in parts by weight: 50-80 parts of polyformaldehyde, 10-20 parts of polytetrafluoroethylene, 2-6 parts of MoS2, 0.1-1 part of formaldehyde absorbent, 2-10 parts of compatilizer, 0.3-1 part of antioxidant, 0.1-0.8 parts of coupling agent, and 0.1-0.5 parts of other auxiliary agents. A little of MoS2 and the polytetrafluoroethylene are added to the polyformaldehyde, so that the solubility of the product can be reduced; the size stability and temperature resistance of the product are improved; meanwhile, the effect of friction heat is reduced; and the improved composite material has excellent mechanical property and wear resistance, and has high application prospect in the field of gears with high manufacturing demands and self-lubricating property.

Description

technical field [0001] The invention relates to a wear-resistant and temperature-resistant modified polyoxymethylene composite material and a method thereof, belonging to the technical field of polymer materials. Background technique [0002] Polyoxymethylene (POM) is a highly crystalline engineering plastic, which has the advantages of high rigidity, good self-lubrication, no noise, fatigue resistance, friction resistance, and easy molding and processing. It has been widely used in machinery manufacturing, automobiles, and precision instruments. , Electronic appliances and other fields. However, with the development of material technology and the improvement of application requirements, the performance of pure polyoxymethylene can no longer meet the requirements of use, so the modified varieties of POM continue to appear. In the automotive field, when manufacturing some parts such as gears, because the gears have high requirements for self-lubrication, frequent friction wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L59/02C08L27/18C08L51/06C08K13/02C08K3/30
Inventor 任俊
Owner SUZHOU SUNWAY POLYMER
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