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Foaming agent synergistic auxiliary agent

A foaming agent and additive technology, applied in the field of plate product processing, can solve problems such as unevenness, affecting product quality, and non-dense cells, so as to increase fluidity, reduce foaming temperature and stability, and dense cells and uniform effect

Active Publication Date: 2014-11-19
安徽恒森新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the central part of the profile is easy to form shrinkage cavities, and the cells are not dense and uneven, which affects the quality of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of blowing agent synergistic auxiliary agent, synergistic auxiliary agent is made up of the raw material of following mass percent: quaternary ammonium compound 7%; Diisobutyl phthalate 25%; Ethylene-vinyl acetate copolymer 40%; Di-tert-butyl 8% p-cresol; 15% carboxylic acid; 5% waste PP board; among them, the content of ethyl acetate in ethylene-vinyl acetate copolymer is 5-15%; waste PP board is used waste.

[0017] In the present invention, because the formula product reduces the AC foaming temperature and stability, increases fluidity, and reduces the internal heat generated by material friction, thereby greatly reducing the extrusion molding temperature, it can absorb a large amount of heat in a short time, which belongs to endothermic Type additives solve the problem of non-densification and inhomogeneity, making the foamed cells dense and uniform.

Embodiment 2

[0019] A kind of blowing agent synergistic auxiliary agent, synergistic auxiliary agent is made up of the raw material of following mass percent: Sodium dodecylbenzene sulfonate 7%; Phthalic acid diester 25%; Ethylene-vinyl acetate copolymer 40%; Butylated hydroxyanisole 8%; fatty acid amide 15%; waste PP board 5%; wherein, the content of ethyl acetate in ethylene-vinyl acetate copolymer is 5-15%; waste PP board is used waste.

[0020] In the present invention, because the formula product reduces the AC foaming temperature and stability, increases fluidity, and reduces the internal heat generated by material friction, thereby greatly reducing the extrusion molding temperature, it can absorb a large amount of heat in a short time, which belongs to endothermic Type additives solve the problem of non-densification and inhomogeneity, making the foamed cells dense and uniform.

Embodiment 3

[0022] A foaming agent synergist, the synergist is composed of the following raw materials in mass percentage: 7% sodium dodecylbenzenesulfonate; 25% dibutyl phthalate; 40% ethylene-vinyl acetate copolymer; Tert-butyl hydroxyanisole 8%; polyester 15%; waste PP board 5%; wherein, the content of ethyl acetate in ethylene-vinyl acetate copolymer is 5-15%; waste PP board is used waste.

[0023] In the present invention, because the formula product reduces the AC foaming temperature and stability, increases fluidity, and reduces the internal heat generated by material friction, thereby greatly reducing the extrusion molding temperature, it can absorb a large amount of heat in a short time, which belongs to endothermic Type additives solve the problem of non-densification and inhomogeneity, making the foamed cells dense and uniform.

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PUM

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Abstract

The invention provides a foaming agent synergistic auxiliary agent. The synergistic auxiliary agent consists of the following raw materials in percentage by mass: 7-12% of a surfactant, 15-25% of a plasticizer, 35-50% of an ethylene-vinyl acetate copolymer, 8-12% of an antioxidant, 15-30% of a lubricating agent and 5-10% of a thermosetting resin waste material. Because a formulated product is used for reducing the AC foaming temperature and stability, the foaming agent synergistic auxiliary agent provided by the invention can be used for increasing the fluidity and reducing the internal heat generated by material friction, so that the extrusion molding temperature can be greatly reduced; therefore, the foaming agent synergistic auxiliary agent can be used for absorbing a great number of heat within a short time; the foaming agent synergistic auxiliary agent belongs to a heat-absorbing auxiliary agent, can be used for solving the problems of non-compactness and non-uniformity, and can ensure that foamed cells are compact and uniform.

Description

technical field [0001] The invention belongs to the field of plate product processing, and in particular relates to a synergistic auxiliary agent for a foaming agent. Background technique [0002] PP micro-foaming produces light-weight boards. Foaming agents need to be used for foaming in the raw materials for generating boards. Since the AC foaming agent is exothermic, when the outer layer of the profile is cooled, the AC foaming agent decomposes and releases The heat is still expanding the gas outward. Therefore, shrinkage cavities are easily formed in the center of the profile, and the cells are not dense and uneven, which affects the quality of the product. Contents of the invention [0003] Aiming at the deficiencies in the prior art above, the present invention provides a foaming agent synergistic agent capable of making cells dense and uniform. [0004] The present invention is achieved through the following technical solutions: [0005] A kind of blowing agent s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/10
Inventor 高学军
Owner 安徽恒森新材料有限公司
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