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Composite foaming functional master batch as well as preparation method and application thereof

A technology of functional masterbatch and composite foaming, applied in the field of composite foaming functional masterbatch and its preparation, can solve the problems of low mechanical properties of shoe soles, complex and cumbersome operation, uneven distribution, etc., to make up for suddenness and uncontrollability Sex, avoid cumbersome operation, avoid dust pollution effect

Pending Publication Date: 2021-04-20
快思瑞科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN105670198A provides the formula to improve the water resistance of the sole, but only AC foaming agent is used as the foaming agent, because the decomposition of AC is sudden, and the cells obtained by the decomposition are large and unevenly distributed, and the mechanical properties of the obtained sole are low
The cost of equipment required for the preparation of the foamed pre-foaming body obtained in the patent CN105504330A is high, and the operation is complicated and cumbersome

Method used

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  • Composite foaming functional master batch as well as preparation method and application thereof

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Effect test

Embodiment 1

[0033] Composite foaming functional masterbatch, including the following components in parts by weight: 40 parts of EVA resin, foaming agent compound: 30 parts of expandable microspheres DU608, 30 parts of stearic acid modified baking soda (baking soda: hard The mass ratio of fatty acid is 1:2), 1 part of talcum powder.

[0034] The preparation method of composite foaming functional masterbatch comprises the following steps:

[0035] S1. Melt and mix the stearic acid and baking soda in the above parts by weight in an oven at 100° C., and stir continuously to obtain modified baking soda;

[0036] S2. Mix EVA, expandable microspheres DU608, modified baking soda, and talcum powder in an internal mixer at 60°C for 10 minutes according to the above weight parts;

[0037] S3. Add the mixed material into the single-screw extruder from the feeding port. The extrusion temperature of the single-screw extruder is 95° C., and the rotation speed is 100 r / min. Extrude and cut to obtain com...

Embodiment 2

[0039] Composite foaming functional masterbatch, comprising the following components in parts by weight: 40 parts of EVA resin, foaming agent compound: 30 parts of expandable microspheres DU608, 20 parts of stearic acid modified baking soda (baking soda: hard The mass ratio of fatty acid is 1:2), 10 parts of zinc stearate modified AC (the mass ratio of zinc stearate:AC is 4:6), and 1 part of talc powder.

[0040] The preparation method of composite foaming functional masterbatch comprises the following steps:

[0041] S1. Melt and mix the stearic acid and baking soda in the above parts by weight in an oven at 100° C., and stir continuously to obtain modified baking soda;

[0042] S2. Melt and mix the above-mentioned zinc stearate and AC in an oven at 100° C., and stir continuously to obtain modified AC;

[0043] S3. Mix EVA, expandable microspheres DU608, modified baking soda, zinc stearate, modified AC, and talcum powder in an internal mixer at 60°C for 10 minutes according ...

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Abstract

The invention provides a composite foaming functional master batch as well as a preparation method and application thereof, and belongs to the technical field of composite functional master batch granulation. The composite foaming functional master batch is prepared from the following raw materials in parts by weight: 20-50 parts of carrier resin, 50-80 parts of a foaming agent and 0.1-5 part of a nucleating agent, wherein the foaming agent is composed of expandable microspheres and a modified chemical foaming agent, the modified chemical foaming agent is composed of one or two of modified baking soda and modified AC, the mass ratio of baking soda to a modifier in the modified baking soda is 10:(3-10), and the mass ratio of AC to a modifier in the modified AC is 10:(3-10). Compared with an existing foaming agent, the composite foaming functional master batch has the characteristics of high foaming ratio, uniform foaming, good resilience and convenience in operation and processing.

Description

technical field [0001] The invention relates to the technical field of composite functional masterbatch granulation, in particular to a composite foaming functional masterbatch and its preparation method and application. Background technique [0002] SBS (Styrene-Butadiene-Styrene Block Copolymer) is a tri-block copolymer of styrene and butadiene as monomers, which has the characteristics of plastic and rubber, and is called "the third generation of synthetic rubber". At present, SBS is mainly used in the four major fields of rubber products, resin modifiers, adhesives and asphalt modifiers. In terms of rubber products, SBS molded products are mainly used in the shoe (sole) industry, that is, SBS sole materials. [0003] The existing foaming masterbatch has the disadvantages of low foaming efficiency, low uniformity of cells, serious decline in mechanical properties, and the like. The composite foaming masterbatch provided by the invention has the advantages of low manufac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K3/34C08J9/32C08J9/08C08J3/22C08J9/10
Inventor 何志兰章超刘雪云李娟
Owner 快思瑞科技(上海)有限公司
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