A kind of polyamide material with excellent wear resistance and its preparation method and application
A wear-resistant, polyamide technology, which is applied to polyamide materials and their preparation, and applications in the preparation of gears, can solve the problems of broken packaging materials, brittle packaging materials, poor wear resistance, etc., and achieve excellent lubrication. , the effect of excellent toughness and impact resistance, excellent mechanical properties
Active Publication Date: 2022-04-01
ZHEJIANG XINLI NEW MATERIAL CO LTD
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Problems solved by technology
However, the wear resistance of cellulose and vegetable starch components is poor. By adding calcium carbonate and silicon oxide rigid particles, the wear resistance of the packaging material matrix is increased, but the introduction of inorganic particles will cause the packaging material to be brittle and easily break during transportation. Risks such as breakage of packaging materials
Method used
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Embodiment 1～3 and comparative example 1～4
[0032] See Table 1 for details of the material proportions of Examples 1-3 and Comparative Examples 1-4.
[0033] Table 1
[0034]
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The invention discloses a polyamide material with excellent wear resistance and its preparation method and application. It consists of the following materials in parts by weight: 40-70 parts of polyamide; 20-40 parts of glass fiber; 5-10 parts of polyvinyl alcohol 3-12 parts of octadecyl isocyanate; 0.1-2 parts of antioxidant. The above components are extruded and granulated by twin-screws to obtain a polyamide material with excellent wear resistance. Due to the special structure of polyvinyl alcohol with amphiphilic structure, the surface of polyamide material has excellent wear resistance. The wear-resistant polyamide material of the invention has low friction coefficient, high mechanical strength, good heat resistance, excellent toughness and impact resistance. It is especially suitable for preparing high-strength wear-resistant products such as gears.
Description
technical field [0001] The invention relates to the field of polyamide materials, in particular to a polyamide material with excellent wear resistance, a preparation method thereof and an application in preparing gears. Background technique [0002] As an engineering plastic, polyamide has the characteristics of high mechanical properties, impact properties, high heat resistance, good chemical resistance and easy molding, and is widely used in automobiles, electronic appliances and other fields. Nylon has poor friction and wear resistance and cannot be used in some fields that require high wear resistance. For example, as a gear material, polyamide has excellent mechanical properties, but the friction of polyamide against metal is insufficient, which is prone to problems such as cracking and dents in parts. In order to improve the wear resistance of polyamide materials, the general solution is to add molybdenum disulfide (MoS2), polytetrafluoroethylene and other wear agents...
Claims
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IPC IPC(8): C08L77/06C08L77/02C08L29/04C08K7/14C08K5/29
CPCC08L77/06C08L2205/03C08L2205/08C08L77/02C08L29/04C08K7/14C08K5/29
Inventor 倪金平冯欢欢陈培叶耀挺梁军杰
Owner ZHEJIANG XINLI NEW MATERIAL CO LTD