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Environment-friendly release agent for refractory material as well as preparation and use methods thereof

A technology of refractory materials and release agents, which is applied in the field of refractory materials, can solve the problems that the protective interface of the release agent is easily damaged, the release agent fails, and the temperature resistance of the release agent cannot meet the requirements, so as to achieve good emulsification and releasability, avoiding waste, and improving heat resistance

Active Publication Date: 2021-03-12
武汉善达化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing release agents will fail when used in some special and harsh environments. For example, in a high-temperature steam environment, the sample needs to be baked at 110°C. During this process, a large amount of water will evaporate and overflow. General release agents The protective interface is easily damaged, and the temperature resistance of the release agent cannot meet the requirements

Method used

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  • Environment-friendly release agent for refractory material as well as preparation and use methods thereof
  • Environment-friendly release agent for refractory material as well as preparation and use methods thereof
  • Environment-friendly release agent for refractory material as well as preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The environmentally friendly release agent for refractory materials provided in this example is prepared by the following method:

[0021] 150 parts of hydrogen-containing silicone monomer (1% hydrogen content, hydrogen-containing silicone oil with a viscosity of 0.3 Pa·s), 50 parts of polyether monomer (hydroxyl-terminated polyether with molecular weight between 2000 and 10000), plasticized Add 20 parts of agent (tri-n-butyl citrate and epoxidized soybean oil with molecular weight between 200 and 1000 1:10) into the reaction kettle, raise the temperature to 100°C, start stirring, set the stirring rate to 35r / min, and stir for 15min Finally, add 0.02 part of catalyst (chloroplatinic acid) and stir for 45 minutes, raise the temperature to 150°C, then add 2 parts of siliphenyne monomer (n-dodecyltriphenylethynylsilane) and keep it for 5h, cool down to 50°C, add 1 part of coupling agent and keep it out for 10 minutes to get an environmentally friendly release agent.

[00...

Embodiment 2

[0029] The environmentally friendly release agent for refractory materials provided in this example is prepared by the following method:

[0030] Mix 150 parts of hydrogen-containing silicone monomer (hydrogen-containing silicone oil with a hydrogen content of 1.2% and a viscosity of 0.4 Pa·s), 50 parts of polyether monomer (hydroxyl-terminated polyether with molecular weight between 2000 and 10000), plasticize Add 50 parts of agent (tri-n-butyl citrate and epoxidized soybean oil with a molecular weight between 200 and 1000 10:1) into the reaction kettle, heat up to 100°C, start stirring, set the stirring rate to 30r / min, and stir for 20min Finally, add 0.02 parts of catalyst (Castel catalyst) and stir for 45 minutes, heat up to 150°C, then add 5 parts of siliphenyne monomer (n-octadecyltriphenylethynylsilane) and keep it warm for 5h, then cool down to 50°C. Add 2 parts of coupling agent and keep discharging for 15 minutes to obtain an environmentally friendly release agent. ...

Embodiment 3

[0038] The environmentally friendly release agent for refractory materials provided in this example is prepared by the following method:

[0039] 100 parts of hydrogen-containing silicone monomer (hydrogen-containing silicone oil with hydrogen content of 0.8%, viscosity of 0.35 Pa·s), 55 parts of polyether monomer (hydroxyl-terminated polyether with molecular weight between 2000 and 10000), plasticizer (Tri-n-butyl citrate and epoxidized soybean oil with a molecular weight between 200 and 1000 1:1) 25 parts were added to the reaction kettle, the temperature was raised to 100°C, and the stirring was started, and the stirring rate was set at 30r / min. After stirring for 25 minutes, , add 0.03 parts of catalyst (selenocrown ether platinum complex) and stir for 45 minutes, heat up to 150 ° C, then add 3 parts of siliphenyne monomer (n-hexyltriphenylethynyl silane) and keep warm for 5 hours, cool down to 50 ° C, add 1.5 parts of coupling agent and kept for 15 minutes to discharge, t...

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Abstract

The invention provides an environment-friendly release agent for a refractory material. The release agent comprises the following components in parts by mass: 80-150 parts of a hydrogen-containing organic silicon monomer, 50-70 parts of a polyether monomer, 2-5 parts of a silicon benzyne monomer, 0.02-0.04 part of a catalyst, 20-50 parts of a plasticizer and 1-2 parts of a coupling agent. The silicon benzyne monomer is any one or a mixture of more than two of n-dodecyl triphenylethynyl silane, n-octadecyl triphenylethynyl silane, n-tetradecyl triphenylethynyl silane and n-hexyl triphenylethynyl silane. The release agent is good in temperature resistance, can be suitable for construction environments with low temperature in winter and high temperature in summer, and can also be suitable forspecial environments with high-temperature steam and the like. When the environment-friendly release agent is used, the environment-friendly release agent and waste engine oil are mixed for use, resources can be saved, the environment is protected, the cost is reduced, the release performance is excellent, the mold surface is smooth, and the sample has flat surface.

Description

technical field [0001] The invention belongs to the technical field of refractory materials and relates to a release agent, in particular to an environment-friendly release agent for refractory materials. Background technique [0002] Coating the release agent on the contact surface between the slurry and the mold can make the molded product and the mold free of adhesion and easy to separate, so as to obtain a smooth and flat product, and ensure that the mold is not polluted and can be reused. Moreover, the release agent has stable chemical properties, does not react chemically with molded products and molds, and will not affect its performance. The release agent can be divided into pure oil, emulsified oil, paraffin, paint and resin. Pure oils include various vegetable oils, animal oils, and mineral oils. Among them, industrial waste oil is the most widely used, but there are many impurities in waste oil, which is easy to contaminate the concrete surface. Most emulsified ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M177/00C10N30/04C10N30/08C10N30/06C10N40/36
CPCC10M169/04C10M177/00C10M2209/103C10M2207/289C10M2207/24C10M2229/02C10M2229/042
Inventor 黄凯黄異张意陈娜
Owner 武汉善达化工有限公司
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