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Hydrophobic/hydrophilic polymer release agent as well as preparation method and application thereof

A technology of polymer and mold release agent, applied in coating and other directions, can solve the problems of poor film formation, inability to meet hydrophobic and hydrophilic environments at the same time, and environmental pollution

Active Publication Date: 2021-07-30
山西吸睛科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many types of release agent films on the market, mainly including inorganic release agents, organic release agents, and polymer release agents. The inorganic release agents are talc powder, mica powder, white clay, etc. The main component has poor film-forming properties; organic release agents include fatty acids, paraffin, glycerin, etc., which require the use of organic solvents, and there is a problem of environmental pollution; the efficiency and thermal stability of polymer release agents are higher than those of organic release agents The agent is much better, and the film-forming property is better than the inorganic release agent
However, the current polymer release agents cannot satisfy both hydrophobic and hydrophilic environments, that is, hydrophilic release agents are used for hydrophilic materials, and hydrophobic release agents are used for hydrophobic materials.

Method used

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  • Hydrophobic/hydrophilic polymer release agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a hydrophobic / hydrophilic polymer release agent, the preparation method of which is as follows:

[0026] Step 1, in parts by weight, take 75 parts of triethylsilanol and 25 parts of mercaptosilane into the reaction flask, add 1 part of 1mol / L hydrochloric acid (hydrochloric acid is the catalyst), stir at room temperature for 3 hours, through coupling Reaction prepares the silane containing triethyl group and mercapto group, and triethyl group is hydrophobic group;

[0027] Step 2, in parts by weight, take 55 parts of silane containing triethyl group and mercapto group and 5 parts of styrene-butadiene-styrene block copolymer and join in the reaction flask, add 0.05 part of chlorine Platinic acid (chloroplatinic acid is a catalyst), stirred at 70°C for 10 hours, and prepared a styrene-butadiene block copolymer containing a triethyl group through a mercapto addition reaction;

[0028] Step 3, in parts by weight, take 90 parts of styrene-butadiene ...

Embodiment 2

[0033] This embodiment provides a hydrophobic / hydrophilic polymer release agent, the preparation method of which is as follows:

[0034] Step 1, in parts by weight, take 95 parts of triethylsilanol and 5 parts of mercaptosilane into the reaction flask, add 0.1 part of 1mol / L hydrochloric acid (hydrochloric acid is the catalyst), stir at room temperature for 3 hours, through coupling Reaction prepares the silane containing triethyl group and mercapto group, and triethyl group is hydrophobic group;

[0035] Step 2, in parts by weight, get 35 parts of silanes containing triethyl groups and mercapto groups and 25 parts of styrene-butadiene-styrene block copolymers into the reaction flask, add 0.1 parts of chlorine Platinic acid (chloroplatinic acid is a catalyst), stirred at 70 degrees Celsius for 10 hours, and prepared a styrene-butadiene-styrene block copolymer containing a triethyl group through a mercapto addition reaction;

[0036] Step 3, in parts by weight, take 70 parts o...

Embodiment 3

[0041] This embodiment provides a hydrophobic / hydrophilic polymer release agent, the preparation method of which is as follows:

[0042] Step 1, in parts by weight, take 85 parts of triethylsilanol and 15 parts of 3-mercaptopropyl triethoxysilane and join in the reaction flask, add 1 part of 1mol / L hydrochloric acid (hydrochloric acid is catalyst), room temperature Under stirring for 3 hours, a silane containing a triethyl group and a mercapto group was prepared by a coupling reaction, and the triethyl group was a hydrophobic group;

[0043] Step 2, in parts by weight, get 45 parts of silanes containing triethyl groups and mercapto groups and 15 parts of styrene-butadiene-styrene block copolymers into the reaction flask, add 0.08 parts of chlorine Platinic acid (chloroplatinic acid is a catalyst), stirred at 70 degrees Celsius for 10 hours, and prepared a styrene-butadiene-styrene block copolymer containing a triethyl group through a mercapto addition reaction;

[0044] Step ...

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Abstract

The invention provides a hydrophobic / hydrophilic polymer release agent as well as a preparation method and application thereof. The release agent comprises 30-50 parts of a polymer release agent, 5-20 parts of polyvinyl alcohol (PEG-400) and 30-65 parts of water. The polymer release agent is a hydrophobic / hydrophilic polymer, and the polymer structure contains hydrophobic groups and hydrophilic groups, so that the release agent can be applied to hydrophobic materials and hydrophilic materials, and has wide application range. The solvent of the release agent is water, and the release agent is free from environmental pollution and meets the environment protection requirement.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a hydrophobic / hydrophilic polymer release agent and its preparation method and application. Background technique [0002] The release agent is a functional substance between the mold and the finished product. At present, there are many types of release agent films on the market, mainly including inorganic release agents, organic release agents, and polymer release agents. Among them, talcum powder, mica powder, white clay, etc. The main component has poor film-forming properties; organic release agents include fatty acids, paraffin, glycerin, etc., which require the use of organic solvents and have environmental pollution problems; high polymer release agents have higher efficiency and thermal stability than organic release agents The agent is much better, and the film-forming property is better than the inorganic release agent. However, the current polymer release agent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D153/02C09D129/04
CPCC09D153/025C08L29/04
Inventor 郭臻胡勇刚叶举德姚强张艳李向红王保明任海龙王蕊李立军
Owner 山西吸睛科技有限公司