Assistant for olefin material secondary mould pressing foamed product and preparation method thereof

Abstract

The invention relates to the technical field of material preparation, especially an assistant for olefin material secondary mould pressing foamed product that greatly improves production efficiency, reduces production cost, greatly reduces production energy consumption and achieves the effect of energy saving and emission reduction, and a preparation method thereof, the raw materials thereof are as follows in parts by weight: 10%-50% EPDM, 10%-50% ethylene-alpha olefin polymer, 10%-20% dimethyl siloxane, 10%-50% ethylene-propylene copolymer, 0.5%-2% organic peroxides and 10%-50% ethylene-methacrylic acid copolymer.

Description

Technical field [0001] The invention relates to the technical field of material preparation, in particular to an auxiliary agent for secondary molded foamed products of olefin materials and a preparation method thereof. Background technique [0002] The traditional production process of secondary molded foam products is mainly after crosslinking and foaming the viscoelastic olefin polymer polymer, and then using its viscosity to perform secondary heating shaping and cooling shaping to achieve specific materials. Appearance, shape and cross-linked elasticity to give products specific physical and mechanical properties. It is widely used in products used in daily life, such as the secondary molded sole of the traditional shoe industry; in this process In the production process, the viscosity and elasticity of the material are a pair of relatively contradictory properties. On the one hand, the material has a high degree of crosslinking and a large molecular weight, and the material ...

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Problems solved by technology

[0002] The traditional production process of secondary molded foamed products is mainly to use the viscosity of the viscoelastic olefin polymer to carry out cross-linking and foaming, and then use its viscosity to carry out secondary heating and shaping and cooling and setting to achieve the specificity of the material. Appearance shape, a processing technology that uses its cross-linked elasticity to endow products with specific physical and mechanical properties, widely used in products used in daily life, such as secondary molded soles of traditional footwear; in this process In the production process of the material, the viscosity and elasticity of the material are a pair of relatively contradictory properties. On the one hand, the material has a high degree of crosslinking and a large molecular weight, and the material performance is more elastic, and the physical and mechanical properties of the product are relatively high. The product has more durability and practicability, but at the same time, it will take a long time for the product to be heated, shaped and cooled for a long time, which improves the production cycle of the product; on the other hand, the material has a low degree of crosslinking and a small molecular weight. , the material performance is more sticky, the physical and mechanical properties of the product are relatively low, the product is not durable or even unable to meet the actual use requirements in the actual use process, but its secondary heating and cooling shaping are easier, and the product’s Short production cycle

[0003] In actual production, it is necessary to seek a reasonable balance point between the viscosity and elasticity of the material, and sacrifice part of the physical and mechanical properties of the material and the time for secondary heating and shaping and cooling and setting, so the mechanical properties of the secondary molded foamed product It is relatively unable to fully exert the proper performance of the raw material and the molding time is relatively long, and the production efficiency is low