The hottest wear-resistant additive new PTFE has b

2022-09-22
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At present, molybdenum disulfide is mostly added to the modified wear-resistant engineering plastics in China. However, because its wear-resistant mechanism depends on its own hardness and fills the hand products, it can only reduce the oil in the oil tank into the working cylinder and reduce the friction coefficient, but it can not improve the wear of the base material, and can only produce black or gray products, This problem can be solved by using PTFE (polytetrafluoroethylene) micro powder

the difference between PTFE micropowder and ordinary PTFE is that the micropowder has a low molecular weight, only about 1/100 of ordinary PTFE. At present, there are 3M and other manufacturers from raw materials to final products of micro powder. There are mainly two types of PTFE micro powder, tf-9207 and tf-9208. The production process or zero position is often changed to lotion polymerization and radiation degradation. In terms of both, it is more suitable to add tf-9207 to wear-resistant plastics, because tf-9207 has a primary particle size of 120m, which is evenly dispersed in the matrix material, and a transfer film will be formed during friction, so it has strong self-lubricating property and can also reduce the wear factor. According to the data provided by 3M laboratory, the wear factor of PA6 with tf-9207 powder decreased from 200 to 15, and the friction coefficient decreased from 0.26 to 0.19; The wear factor of PA66 decreased from 200 to 12, and the friction coefficient decreased from 0.28 to 0.18. Tf-9208 has better dispersibility than tf-9207, and can be evenly dispersed in the coating. It is suitable for non stick coatings, and improves the non stick and scratch resistance of the coating surface

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