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A kind of styrene-free bulk molding compound based on artificial granite waste slag and its preparation method

A technology of bulk molding compound and artificial granite, which is applied in the field of composite materials and can solve problems such as low flash point, environmental pollution, and strong volatility

Active Publication Date: 2022-05-24
HEZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Styrene, as a solvent and cross-linking monomer for the preparation of bulk molding compounds, has the advantages of good dilution, high reactivity, and low price, but it has low flash point, strong volatility, pungent odor, and potential carcinogenicity Sex, will cause damage to the health of operating staff, but also pollute the environment

Method used

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  • A kind of styrene-free bulk molding compound based on artificial granite waste slag and its preparation method
  • A kind of styrene-free bulk molding compound based on artificial granite waste slag and its preparation method
  • A kind of styrene-free bulk molding compound based on artificial granite waste slag and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. Matrix resin preparation

[0032] The matrix resins used are all dicyclopentadiene-modified recycled PET-type unsaturated polyester resins. The raw material formula includes by weight: 50 parts of recycled PET bottle flakes, 10 parts of diethylene glycol, 28 parts of ethylene glycol, 3 parts of glycerol, 70 parts of maleic anhydride, 10 parts of water, and 25 parts of dicyclopentadiene , 0.0003 parts of zinc acetate as catalyst, and 0.0001 part of hydroquinone as a polymerization inhibitor. Among them, the recycled PET bottle flakes are the bottle body of Wahaha drinking pure water (500ml bottle) sold by Hangzhou Wahaha Group Co., Ltd. on the market. The label is removed, then shredded, washed, and dried to obtain recycled PET bottle flakes.

[0033] The preparation method includes the following steps:

[0034] (1) Mix the recovered PET bottle flakes, diethylene glycol, ethylene glycol (40% of the total amount of ethylene glycol), glycerin and catalyst, feed nitrog...

Embodiment 2

[0048] 1. Matrix resin preparation

[0049] The matrix resins used are all dicyclopentadiene-modified recycled PET-type unsaturated polyester resins. Its raw material formula includes by weight: 53 parts of recycled PET bottle flakes, 12 parts of diethylene glycol, 30 parts of ethylene glycol, 2 parts of glycerol, 66 parts of maleic anhydride, 13 parts of water, and 28 parts of dicyclopentadiene , 0.00027 parts of catalyst zinc acetate, 0.000106 parts of polymerization inhibitor hydroquinone. Among them, the recycled PET bottle flakes are the bottle body of Wahaha drinking pure water (500ml bottle) sold by Hangzhou Wahaha Group Co., Ltd. on the market. The label of the bottle body is removed, then chopped, washed, and dried to obtain recycled PET bottles. piece.

[0050] The preparation method includes the following steps:

[0051] (1) Mix the recovered PET bottle flakes, diethylene glycol, ethylene glycol (40% of the total amount of ethylene glycol), glycerin and catalyst,...

Embodiment 3

[0065] 1. Matrix resin preparation

[0066] The matrix resins used are all dicyclopentadiene-modified recycled PET-type unsaturated polyester resins. Its raw material formula includes by weight: 56 parts of recycled PET bottle flakes, 13 parts of diethylene glycol, 32 parts of ethylene glycol, 2.5 parts of glycerin, 63 parts of maleic anhydride, 12 parts of water, and 30 parts of dicyclopentadiene , 0.00025 parts of zinc acetate as a catalyst, and 0.000103 parts of hydroquinone as a polymerization inhibitor. Among them, the recycled PET bottle flakes are the bottle body of Wahaha drinking pure water (500ml bottle) sold by Hangzhou Wahaha Group Co., Ltd. on the market. The label is removed, then shredded, washed, and dried to obtain recycled PET bottle flakes.

[0067] The preparation method includes the following steps:

[0068] (1) Mix the recovered PET bottle flakes, diethylene glycol, ethylene glycol (40% of the total amount of ethylene glycol), glycerin and catalyst, fee...

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Abstract

The invention provides a styrene-free bulk molding compound based on artificial granite waste residue and a preparation method thereof. The preparation process is as follows: prepare dicyclopentadiene modified recycled PET type unsaturated polyester resin, mix it evenly with composite active diluent, add matrix resin, low shrinkage additive and initiator into high-speed disperser to prepare resin paste , which was added into a kneader to obtain the bulk molding compound. The advantages of the present invention are: using dicyclopentadiene modified recycled PET type unsaturated polyester resin as base resin, using epoxy soybean oil acrylate and acrylate monomer as composite reactive diluent, without using volatile and toxic Styrene is used as an active diluent, which avoids the negative impact of styrene volatilization on the ecological environment and human health; using artificial stone waste residue as an inorganic filler, solves the environmental pollution problem caused by artificial stone waste residue, and the prepared pellet The rigidity and toughness of the molding compound are obviously improved, and the production cost is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a mass molding compound and a preparation method thereof, in particular to a styrene-free mass molding compound based on artificial granite waste residue and a preparation method thereof. Background technique [0002] Artificial granite is made from natural marble powder (the main component is calcium carbonate), pigments, etc., and unsaturated polyester resin as a binder. It is mixed and configured, and then it is prepared by vacuum stirring, high-pressure vibration, curing and shaping. Square material. Subsequent cutting and grinding can be made into plates of various thicknesses or processed into various special-shaped decorative materials by special-shaped processing equipment. During the processing of artificial granite, a large amount of artificial granite waste will be produced, and its main components are calcium carbonate and unsaturated polyester resin. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/06C04B26/18C08G63/91C08G63/676B29B7/74
CPCC04B26/18C08G63/918C08G63/676B29B7/74C04B2201/50C04B2111/00017C04B18/0427C04B2/045C04B14/42C04B24/085C04B22/064C04B24/008
Inventor 李鹏李小林戴永斌何星存陈珍明江键铭刘龙云杨芮银莹
Owner HEZHOU UNIV