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Novel polyurethane (PU) shoe material release agent

A release agent and shoe material technology, applied in the field of PU shoe material release agent, can solve the problems of product quality impact, environmental pollution, mold damage, etc., and achieve the effect of simple composition and less environmental pollution

Inactive Publication Date: 2013-09-04
SUZHOU JINGRO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting problem is that during the molding process, after the product sticks to the surface of the mold, it will form mold "scaling" and destroy the mold. The quality of the product itself will be greatly affected. Therefore, in the process of producing molded PU products, demoulding agent is essential
However, the existing mold release agents pollute the environment, cause harm to the health of operators, and have deficiencies in work performance and production costs.

Method used

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  • Novel polyurethane (PU) shoe material release agent
  • Novel polyurethane (PU) shoe material release agent

Examples

Experimental program
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Effect test

Embodiment 1

[0013] A new type of release agent for PU shoe materials, which is composed of the following ingredients mixed by weight percentage: 11.6% of methyltrimethoxysilane, 82.5% of hexamethylcyclodisiloxane, cyclopentasiloxane 1.2%, 0.5% of 14 alkyl alcohol, 0.2% of toluene, 4% of water.

[0014] The preparation method of the release agent for PU shoe materials is as follows: after uniformly mixing the above-mentioned components according to the proportion, stirring at a high speed at room temperature for 2-3 hours, and then standing still for 1-2 hours to obtain the product.

Embodiment 2

[0016] A new type of release agent for PU shoe materials, which is composed of the following ingredients mixed by weight percentage: 11.6% of 3-glycidyl etheroxypropyl trimethoxysilane, 83.7% of hexamethylcyclodisiloxane, cyclopenta Polydimethylsiloxane 0.84%, 14 alkyl alcohol 0.5%, toluene 0.2%, water 4%.

[0017] Its preparation method is the same as the examples.

Embodiment 3

[0019] A new type of release agent for PU shoe materials, which is composed of the following components by weight percentage: vinyltrimethoxysilane 13%, hexamethylcyclodisiloxane 82.5%, cyclopentasiloxane 0.8%, 14 alkyl alcohol 0.5%, toluene 0.2%, water 3%.

[0020] Its preparation method is the same as the examples.

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Abstract

The invention discloses a novel polyurethane (PU) shoe material release agent which comprises the following components by weight percent: 11-15% of a silane coupling agent, 80-85% of hexamethyl cyclo-disiloxane, 0.8-1.5% of cyclopentasiloxane, 0.1-0.6% of a catalyst, 0.1-0.5% of methylbenzene and 3-5% of water. A preparation method of the shoe material release agent comprises the steps of: evenly mixing the components according to the proportion, stirring at high speed for 2-3h at the room temperature, and then standing for 1-2h to obtain the product. The PU shoe material release agent has the advantages that the composition is simple, the pollution of the environment is slight, high temperature can be resisted and residue does not exist on a mould after demoulding is implemented.

Description

Technical field: [0001] The invention relates to a release agent, in particular to a PU shoe material release agent. Background technique: [0002] Polyurethane (PU) microcellular elastomers are mainly used to make molded products such as shoe soles. Since the molds used for PU products are generally metal molds, polyurethane itself has a bonding effect with the metal, so a major problem in the use of molds for material molding is that the products usually stick to the mold when they are demoulded. The resulting problem is that during the molding process, after the product sticks to the surface of the mold, it will form mold "scaling" and destroy the mold. The quality of the product itself will be greatly affected. Therefore, in the process of producing molded PU products, demoulding Agents are essential. However, the existing mold release agents pollute the environment, cause harm to the health of operators, and are deficient in aspects such as work performance and produc...

Claims

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Application Information

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IPC IPC(8): B29C33/60
Inventor 黄超
Owner SUZHOU JINGRO TECH