Method for preparing thermosetting plastic with coal gangue modified phenolic resin

Abstract

The invention provides a method for preparing thermosetting plastic with coal gangue modified phenolic resin, comprising the following steps: (1) breaking coal gangue raw material into powder; (2) carrying out surface treatment to the coal gangue powder by a coupling agent; (3) mixing and heat bodying the coal gangue powder performed with surface treatment, phenolic resin, wood flour and nitrile rubber; (4) cooling and breaking the heat bodying material to obtain phenolic moulding; and (5) solidifying and shaping the phenolic moulding with a curing agent. The method of the invention takes the coal gangue to serve as a filler to carry out modified treatment to the phenolic resin, obtains the purpose of lowering phenolic plastic cost, improves various mechanical properties and mechanical capacities of phenolic plastics and opens a new path for comprehensively utilizing the coal gangue.

Description

technical field

[0001] The invention belongs to the field of three wastes treatment and plastic manufacturing, and specifically relates to the utilization of coal gangue waste and the manufacturing technology of thermosetting plastics, and more specifically relates to a method for preparing thermosetting plastics by modifying phenolic resin with coal gangue. Background technique

[0002] Coal gangue is a rock associated with coal, and is a solid waste produced during coal mining, washing and processing. The coal gangue produced in the coal mining and washing process in our country accounts for about 10%-20% of the coal output, and its utilization rate is less than 30%. Most coal mines have piled up a large amount of coal gangue, encroaching on fertile land and seriously polluting the environment. In the situation of increasingly scarce resources and increasingly strict environmental protection, how to realize the resource utilization of coal gangue is a problem that must be...

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