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Foaming sole formula capable of shortening secondary forming time and preparation method thereof

A secondary molding and formulation technology, applied in the field of shoe soles, can solve the problems of inconsistency in the internal and external links of the foamed embryo, affecting the time and quality of the secondary molding, and long secondary molding time, so as to shorten the secondary molding time, Ensure the same effect of elasticity, elongation and cross-linking degree

Pending Publication Date: 2022-07-05
福建斯达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production process not only takes too long for the secondary molding, the output is limited, and the production cost is high, but also the degree of internal and external links of the foamed embryo is inconsistent, which affects the secondary molding time and quality
Moreover, in order to ensure on-time delivery, the manufacturer needs to increase the number of molds for secondary molding and increase the initial investment

Method used

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  • Foaming sole formula capable of shortening secondary forming time and preparation method thereof
  • Foaming sole formula capable of shortening secondary forming time and preparation method thereof
  • Foaming sole formula capable of shortening secondary forming time and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] A kind of preparation method of the foamed sole that shortens secondary molding time, it comprises the following steps:

[0045] S1, take by weighing the main material, reversible cross-linking agent PE 901, ultrafine mica powder, cross-linking retardation aid ANCV9802, heavy calcium, cross-linking agent, Zinc oxide, magnesium oxide and blowing agents;

[0046] S2. Mix the host material, the reversible cross-linking agent PE 901, the ultrafine mica powder, the cross-linking retardation aid ANCV9802, the heavy calcium, the zinc oxide and the magnesium oxide and combine Banburying is carried out, the banburying temperature is 100 ℃ ~ 105 ℃, and it is kept for 8 ~ 10min; then the crosslinking agent and the foaming agent are added, and the banburying is continued to heat up, the discharge temperature is 110 ℃ ~ 115 ℃, Carry out refining and granulation after finishing to obtain foamed material;

[0047] S3, molding and foaming the foamed material, the first foaming ratio ...

Embodiment approach

[0056] Heavy calcium, a polymer material enhancer, was purchased from Fujian Yuyang Chemical Co., Ltd.;

[0057] Ethylene-vinyl acetate copolymer (EVA5110J), purchased from Yangzi BASF Chemical Co., Ltd.;

[0058] Cross-linking agent DCP and cross-linking agent BIBP, purchased from Nouryon Chemicals (Ningbo) Co., Ltd.;

[0059] Zinc oxide and magnesium oxide were purchased from Jintong Nantong Jinqi Zinc Industry;

[0060] AC foaming agent (azodicarbonamide), purchased from Jiangsu Sopo Chemical Co., Ltd.;

[0061] Cross-linking retardation aid ANCV9802, purchased from Fujian Star New Materials Co., Ltd.;

[0062] Reversible cross-linked PE-SP901, purchased from Xiamen Feiyu Trading Co., Ltd.;

[0063] Ultrafine mica powder was purchased from Fujian Yuyang Chemical Co., Ltd.

Embodiment 1

[0064] Embodiment 1 The preparation of the foamed sole that shortens the secondary molding time

[0065] In Example 1, the foamed sole formulation for shortening the secondary molding time is shown in Table 1.

[0066] The foam sole formula of table 1 embodiment 1

[0067]

[0068]

[0069] The preparation method of the foamed sole for shortening the secondary molding time comprises the following steps:

[0070] S1. Weigh the formula amount of EVA5110J, reversible cross-linking agent PE 901, ultrafine mica powder, cross-linking retardation aid ANCV9802, heavy calcium, cross-linking agent, zinc oxide, magnesium oxide and AC foam according to the foam sole formula agent;

[0071] S2. Mix EVA5110J, reversible cross-linking agent PE 901, ultrafine mica powder, cross-linking retardation aid ANCV9802, heavy calcium, zinc oxide and magnesium oxide, and mix and banbury at a temperature of 105°C for 10 minutes; then Add the cross-linking agent DCP, the cross-linking agent BIBP...

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Abstract

The invention relates to a foaming sole formula capable of shortening secondary forming time and a preparation method of the foaming sole formula. According to the formula of the foaming shoe sole, reversible crosslinking PE-SP901, superfine mica powder and a crosslinking retarding agent ANCV9802 are added, so that the elasticity and the elongation of a finished shoe sole product are ensured, the foaming uniformity is improved, the internal and external crosslinking degrees of a foaming primary blank in a primary foaming stage are consistent, the heat transfer speed is increased, the secondary forming time is shortened, and the production cost is reduced. And the possibility that the product rebounds after being heated is reduced through twice crosslinking. According to the preparation method of the foaming sole formula, the foaming temperature in the primary foaming stage is improved to be 160-165 DEG C, the internal and external cross-linking degrees of a foaming primary blank in the primary foaming stage are consistent through rapid heat transfer and control of the cross-linking process of the cross-linking agent, and meanwhile, the secondary forming time is shortened.

Description

technical field [0001] The invention relates to the technical field of shoe soles, in particular to a foamed shoe sole formulation and a preparation method thereof for shortening the secondary molding time. Background technique [0002] The foam sole secondary molding process consists of two stages. The first stage is the foaming stage. After heating and cross-linking by molding, the finished product is instantly expanded and foamed to form a rough embryo. Heat, soften and plasticize into the desired shape, and then take it out after cooling and shaping. This production process has not changed significantly since the 1980s. Usually, the heating temperature in the foaming stage is 180°C, which takes about 350S; Around 720S. This production process not only takes too long for secondary molding, limited output, and high production cost, but also has the problem of inconsistent degree of internal and external linkages in the initial foaming embryo, which affects the time and q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/10C08L23/08C08L23/06C08K3/34
CPCC08J9/103C08J9/0061C08J9/0066C08J2323/08C08J2423/06C08J2203/04
Inventor 廖仓良
Owner 福建斯达新材料科技有限公司