Water-based mold release and preparation method thereof and release paper prepared by utilizing water-based mold release

A water-based release type and release coating technology, which is applied to textiles, papermaking, papermaking, paper coatings, etc., can solve the problems of unsuitable for large-scale industrial production of release paper, slow thermal curing speed, and low production efficiency. Moderate hardness, short processing time and high production efficiency

Inactive Publication Date: 2013-10-16
浙江池河科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But all there is certain defective in the release agent that is used to prepare the release coating of thermal curing release paper, such as environmental pollution, slow thermal curing speed, low production efficiency, not suitable for large-scale industrial production of release paper

Method used

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  • Water-based mold release and preparation method thereof and release paper prepared by utilizing water-based mold release
  • Water-based mold release and preparation method thereof and release paper prepared by utilizing water-based mold release
  • Water-based mold release and preparation method thereof and release paper prepared by utilizing water-based mold release

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]Preparation of water-based release agent: 20g octamethylcyclotetrasiloxane, 10g vinyltriethoxysilane, 30g alkyd resin (HD-WA622), 4g sodium lauryl sulfate, 3g dodecane Add benzenesulfonic acid and 140g of distilled water into a four-necked flask, pre-emulsify at 25°C for 1 hour, then raise the temperature to a reaction temperature of 100°C, react at a constant temperature for 3 hours, cool to room temperature, adjust the pH value to 7 with ammonia water, and finally add 4g Hydrogen-containing silicone oil (XH-202) and 0.3g of chloroplatinic acid are mixed to prepare a water-based release agent.

[0042] Preparation of release paper: On one side of the base paper 1, evenly coat a coating composed of styrene-acrylic latex and vinyl triethoxysilane emulsion (the mixing ratio is the same as in Example 1). Coating treatment, forming an undercoat 2 on one side of the base paper 1 (the formula of the undercoat 2 is: a mixture of styrene-acrylic emulsion and vinyl triethoxysilan...

Embodiment 2

[0044] Preparation of water-based release agent: 30g octamethylcyclotetrasiloxane, 10g vinyltrimethoxysilane, 30g alkyd resin (HD-WA622), 3g sodium dodecylbenzenesulfonate, 3g dodecylbenzene Alkylbenzenesulfonic acid and 140g of distilled water were added to a four-necked flask, pre-emulsified at 25°C for 0.5h, then heated to a reaction temperature of 95°C, reacted at a constant temperature for 3h, cooled to room temperature, adjusted to pH 7 with ammonia water, and finally Add 5g of hydrogen-containing silicone oil (XH-202) and 0.5g of chloroplatinic acid, and mix well to prepare a water-based release agent.

[0045] Preparation of release paper: On one side of the base paper 1, evenly coat a coating composed of styrene-acrylic latex and vinyltrimethoxysilane emulsion (the mixing ratio is the same as in Example 1), and after drying, complete the base coating of the base paper 1 treatment, forming an undercoat 2 on one side of the base paper 1 (the formula of the undercoat 2 i...

Embodiment 3

[0047] Preparation of water-based release agent: 20g hexamethylcyclotrisiloxane, 20g methylvinyldiethoxysilane, 40g alkyd resin (HD-DS006), 4g sodium lauryl sulfate, 3g ten Add dialkylbenzenesulfonic acid and 150g distilled water into a four-necked flask, pre-emulsify at 25°C for 1h, then raise the temperature to a reaction temperature of 100°C, react at a constant temperature for 3h, cool to room temperature and adjust the pH value to 7 with triethylamine , and finally add 3g of hydrogen-containing silicone oil (TSF-484) and 0.1g of chloroplatinic acid, and mix well to prepare a water-based release agent.

[0048] Preparation of release paper: On one side of the base paper 1, evenly coat a coating composed of styrene-acrylic latex and methacryloxypropyltrimethoxysilane emulsion (the mixing ratio is the same as that in Example 1), and after drying, complete For the primer treatment of base paper 1, base coat 2 is formed on one side of base paper 1 (the formula of base coat 2 i...

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Abstract

The invention discloses a water-based mold release and a preparation method thereof and release paper prepared by utilizing the water-based mold release. The mold release comprises the following raw materials by weight: 1 to 50 parts of organosilicone monomer, 1 to 50 parts of vinyl end-capping agent, 1 to 50 parts of alkyd resin, 1 to 10 parts of emulsifying agent, 1 to 10 parts of catalytic agent, 100 to 160 parts of deionized water, 0.1 to 10 parts of pH value conditioning agent, 1 to 10 parts of cross-linking agent and 0.01 to 1 part of platinum-based catalytic agent. The mold release has the advantages that the raw materials are cheap and easy to get; the preparation method is simple; the used mold release layer takes water as a dispersing agent; no organic solvent is released; the mold release is safe and environment-friendly; the release paper prepared by utilizing the mold release is short in thermosetting time, and is suitable for industrialized production; the prepared release paper is good in property.

Description

technical field [0001] The invention relates to the field of artificial leather processing and manufacturing, in particular to a water-based release agent, a preparation method thereof, and a release paper prepared by using the water-based release agent. Background technique [0002] Artificial leather release paper is a special release paper, its coating generally has a concave-convex pattern structure, it is widely used in the artificial leather and synthetic leather industry, as a carrier in the production of artificial leather and synthetic leather, artificial leather release paper Model paper can copy the pattern embossed on it to artificial leather and synthetic leather. [0003] Leather release paper has different product structures according to its preparation process. Leather release paper made by coating process generally consists of release layer, seal coat and paper base. The release layer provides a peelable surface for leather, mainly composed of four types o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D167/08C09D5/20D21H19/00
Inventor 丁宏亮陈冬平
Owner 浙江池河科技有限公司
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