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Method for preparing thermosetting plastic with coal gangue modified phenolic resin

A technology of phenolic resin and coal gangue, which is applied in the field of three wastes treatment and plastic manufacturing, to achieve the effect of improving strength and toughness, benefiting environmental protection, and improving interface bonding force

Inactive Publication Date: 2010-06-23
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Utilize coal gangue as the filler of polyvinyl chloride and rubber existing report (CN1064493, CN1032018, CN1631956), but do not see bibliographical information both at home and abroad with coal gangue modified phenolic resin system thermosetting plastics

Method used

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  • Method for preparing thermosetting plastic with coal gangue modified phenolic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The coal gangue with an ash content of 72.41% and a fixed carbon content of 13.58% is crushed, ball milled, and treated with a coupling agent KH550 aqueous solution, and the dosage of KH550 is 1.5% of that of the gangue. Then, ventilate and dry for later use.

[0039] Take the processed coal gangue, mix it with phenolic resin according to the mass ratio of 55 / 45, add 15% wood powder of the quality of the mixture of coal gangue and phenolic resin, and add 14% of the quality of the mixture of coal gangue and phenolic resin Butyronitrile rubber. After these materials are mixed, put into the double-roll heating machine, and carry out double-roll heating under the condition of 120°C for 30-60min. Add 3% carbon black and 8% curing agent urotropine after the hot refining material is cooled and pulverized, and put it into the mold after mixing. 10 tons, and the final temperature of the mold is 65 ℃, and the mold is solidified to obtain a phenolic molded plate.

Embodiment 2

[0041] The coal gangue with an ash content of 62.48% and a fixed carbon content of 17.13% was crushed and ball milled, and treated with an aqueous solution of coupling agent B201, the amount of which was 2.0% of that of the coal gangue. . Then, ventilate and dry for later use.

[0042] Get the processed coal gangue and mix it with phenolic resin according to the mass ratio of 55 / 45, add 12% wood powder of the quality of the mixture of coal gangue and phenolic resin, and add 10% of the quality of the mixture of coal gangue and phenolic resin Butyronitrile rubber. After mixing these materials, put them into a kneading heat-refining machine, and carry out heat-refining at 125°C for 30-60min. Add 2% carbon black and 6% curing agent trimethylolphenol after cooling and pulverizing the hot refining material. After mixing, put it into the mold. The phenolic molded board was prepared under the conditions of 10 tons and mold final temperature of 65°C.

Embodiment 3

[0044] The coal gangue with an ash content of 66.63% and a fixed carbon content of 19.44% is crushed and ball-milled with an aqueous solution whose dosage of coupling agent KH550 is 1.5% of that of the gangue. Then, ventilate and dry for later use.

[0045] Get the treated coal gangue and mix it with phenolic resin in a mass ratio of 55 / 45, add 12% wood powder of the quality of the mixture of coal gangue and phenolic resin, and add 6% of the quality of the mixture of coal gangue and phenolic resin Butyronitrile For rubber, mix these materials and add them to the double-roll heat refining machine, and carry out double-roll heat refining at 115°C for 30-60 minutes. After the hot mixing material is cooled and pulverized, add 2% carbon black and 6% curing agent Uro Tropin, mixed and put into a mold, cured and molded under the conditions of upper plate temperature of 105°C, lower plate temperature of 70°C, molding pressure of 10 tons, and mold final temperature of 65°C to obtain a ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08K9/04B29B7/28B29B7/72C08L97/02C08L9/02
Inventor 王玉明张群钱晖李肇毅
Owner BAOSHAN IRON & STEEL CO LTD
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