Capacitor thin film with homo-polypropylene as substrate and preparation method thereof
A homopolymer polypropylene, capacitor film technology, applied in the direction of fixed capacitor dielectric, fixed capacitor components, etc., can solve the problems of difficult to meet the film, large demand, high price, to enhance the barrier and air tightness, heat High sealing strength and good heat sealing performance
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[0015] Embodiment 1: take homopolypropylene as the capacitor film of matrix, the weight part of its composition raw material is: LDPE low-density polyethylene 25, homopolypropylene 35, epoxy linseed oil 4, polyvinyl alcohol 2.5, hydroxide Aluminum 1.5, polyisobutylene 1.5, diatomaceous earth 10, ferrocene 1.5, poly-4-methyl-1-pentene 1, barium sulfate 0.6, nano clay 10, catechol 2.2, diethylene glycol benzene Formate 1.4, Dibutyl Phthalate 1.5, Calcium Stearate 5, Vinyltriethoxysilane 1.8 and Modified Tree Ash 2.8.
[0016] The preparation method of the capacitor film with homopolypropylene as the matrix comprises the following steps:
[0017] (1) Weigh the diatomite according to the weight of the raw materials, first soak the diatomite in 20-25% hydrogen peroxide for 3-4 hours, roast it at 400-450°C for 3-4 hours, and grind it into 400-45 Mesh powder;
[0018] (2) Add epoxy linseed oil and polyvinyl alcohol into the mixer according to the weight of the raw materials, raise ...
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