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Preparation method of talcum powder-based ecological plastic

A talcum powder, ecological technology, applied in the field of preparation of talcum powder-based ecological plastics

Active Publication Date: 2015-11-04
曲周县佳佳乐儿童玩具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the complete modification of the interfacial properties of the talc powder layer, the dispersion problem of the talc powder is solved, especially the layer interface is pretreated by unsaturated carboxylate ammonium salt and firmly connected with the polymer, so that the talc powder particles are not exposed, and then The obtained talcum powder-based ecological plastic still has the strength and processability of resin when talc powder is the main component, and can be directly used to process various plastic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Talc powder solization: disperse talc powder with a particle size of less than 100 nanometers, water, polyacrylic acid, and ammonium acrylate in a mass ratio of 5:50:3:1 for 1 hour, and perform centrifugal drainage treatment through a centrifuge to obtain a sol Granulated talcum powder;

[0033] 2) Polymer monomer emulsification: Add 5 parts by weight of sodium dodecylsulfonate, 80 parts by weight of acrylate, and 100 parts by weight of water into the reaction pot, mix vigorously to fully emulsify the monomers, and then add 0.5 parts by weight Ammonium persulfate, mixed at room temperature;

[0034] 3) Disperse the solized talc powder in the excess polymer monomer emulsion, the mass ratio of the solized talc powder to the polymer emulsion is 1:5, heat up the reaction pot to 80-90°C, and run at a high speed of 1200rpm Stir, the talcum powder with layered structure continuously adsorbs polymer monomers between layers, and undergoes intercalation polymerization of the ...

Embodiment 2

[0039] 1) Sollization of talc powder: disperse talc powder, water, polymethacrylic acid, and ammonium itaconate with a particle size of less than 1 micron in a mass ratio of 8:55:3:1 for 1.5 hours, and then centrifugally drain through a centrifuge Handle the talcum powder particle that obtains solization;

[0040]2) Polymer monomer emulsification: Add 6 parts by weight of sodium hexametaphosphate, 85 parts by weight of methacrylate, and 120 parts by weight of water into the reaction pot, mix vigorously to fully emulsify the monomers, and then add 0.7 parts by weight of Ammonium sulfate, mixed at room temperature;

[0041] 3) Disperse the solized talc powder in excess polymer monomer emulsion, the mass ratio of solized talc powder to polymer emulsion is 1:10, heat up the reaction pot to 80-90°C, and run at a high speed of 1500rpm Stir, the talcum powder with layered structure continuously adsorbs polymer monomers between layers, and undergoes intercalation polymerization of th...

Embodiment 3

[0046] 1) Sollization of talc powder: disperse talc powder, water, polyacrylamide, and ammonium maleate with a particle size of less than 2 microns in a mass ratio of 10:50:5:1 for 2 hours, and conduct centrifugal drainage treatment through a centrifuge Obtain the talcum powder particle of solization;

[0047] 2) Polymer monomer emulsification: Add 10 parts by weight of sodium tripolyphosphate, 90 parts by weight of styrene, and 150 parts by weight of water into the reaction pot, mix vigorously to fully emulsify the monomers, and then add 1 part by weight of ammonium persulfate , mixed at room temperature;

[0048] 3) Disperse the solized talc powder in excess polymer monomer emulsion, the mass ratio of solized talc powder to polymer emulsion is 1:15, heat up the reaction pot to 80-90°C, and run at a high speed of 1200rpm Stir, the talcum powder with a layered structure continuously adsorbs polymer monomers between layers, and intercalation polymerization of the monomers occu...

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Abstract

The invention discloses a preparation method of a talcum powder-based ecological plastic. According to the preparation method, talcum powder is taken as a main ingredient; talcum powder is subjected to solation; intercalation and microwave irradiation polymerization are adopted so as to solve dispersion and surface property problems of talcum powder layer interfaces, continuous polymerization coating of new layer interfaces generated in talcum powder dispersion process is realized; complete modification of talcum powder layer interface characteristics is realized, so that dispersion problems of talcum powder are solved; particularly, the layer interfaces are obtained via firm connection of an unsaturated carboxylic acid ammonium salt obtained via pretreatment with a polymer, so that exposure of talcum powder particles is avoided, the obtained talcum powder-based ecological plastic still possesses resin strength and processability, and can be directly applied to processing of a plurality of plastic products when talcum powder is taken as the main ingredient; application of replacing plastic with talcum powder is promoted greatly; and the preparation method possesses positive environmental significance and great economic significance.

Description

technical field [0001] The invention relates to ecological plastics, in particular to preparing plastics with talcum powder as the main raw material, thereby reducing dependence on petroleum plastics, and further relates to a preparation method of talcum powder-based ecological plastics. Background technique [0002] With the rapid development of my country's plastic processing industry, my country's annual output of plastics exceeds 50 million tons. The huge amount of plastic manufacturing and waste not only causes irreversible pollution and damage to the ecological environment, but also sharply increases the demand for petroleum resources . In order to reduce the dependence of plastics on petroleum resources and reduce costs, plastic fillers have become the key to the development of the plastics industry in the past 30 years. Calcium carbonate, talcum powder, wollastonite powder, mica powder and other inorganic powder materials added to plastics can effectively reduce cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L25/08C08L67/02C08L77/00C08L67/04C08L23/06C08F220/10C08F220/06C08F222/02C08F212/08C08K3/34
Inventor 陈庆曾军堂
Owner 曲周县佳佳乐儿童玩具有限公司
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