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Inorganic silicon-organosilicon copolymerized temperature-resistant heat-insulating coating as well as preparation method and use method thereof

A heat-insulating coating and silicone technology, applied in anti-corrosion coatings, fire-proof coatings, reflection/signal coatings, etc., can solve the problems of high operation and maintenance costs, loss and safety, and low heat insulation efficiency, and achieve enhanced reflection and heat insulation Performance, dense coating film, heat resistance improvement effect

Active Publication Date: 2020-04-28
HUADIAN ZHENGZHOU MECHANICAL DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventionally used thermal insulation materials have low thermal insulation efficiency, high operation and maintenance costs, and cause loss and safety problems. Now it is necessary to develop high-efficiency thermal insulation coatings to improve the thermal efficiency of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] A preparation method of an inorganic silicon-organosilicon copolymer heat-resistant heat-insulating coating, comprising the following steps:

[0027] (1): Absolute ethanol: 6.0~7.0 parts; Isopropanol: 2.0~3.0 parts; Ethyl silicate-40: 20.0~25.0 parts; Stir the above components at medium speed for 10~20 minutes to obtain mixture A;

[0028] (2): Deionized water: 1.0~1.5 parts; hydrochloric acid with a mass fraction of 35%: 0.1~0.3 parts; zinc oxide: 0.3~0.5 parts; mix and stir these three components first to obtain mixture B; Add mixture B to mixture A under stirring, and leave for 30 to 50 minutes to obtain mixture C; the main purpose of standing is to let ethyl silicate hydrolyze for a period of time under the action of acid catalysis.

[0029] (3) Firstly, the mixture C is incubated at 50~70°C for 30~60 minutes, then 2.5~4.0 parts of silane coupling agent is added and reacted at 70~80°C for 30~50 minutes to prepare silane-modified silicate prepolymer Add 12.0~20.0 pa...

Embodiment 1

[0035] In this example, the inorganic silicon-organic silicon copolymer heat-resistant heat-insulating coating for energy-saving heating pipelines is calculated in parts by weight, and the specific formula is as follows:

[0036] 7.0 parts of absolute ethanol, 3.0 parts of isopropanol, 23.5 parts of ethyl silicate-40, 1.4 parts of deionized water, 0.2 parts of hydrochloric acid with a mass fraction of 35%, 0.4 parts of zinc oxide, phenyltrimethoxysilane 2.5 parts of joint agent, the above is silane-modified silicate prepolymer; 12.0 parts of W991-6 silicone resin, 1.5 parts of γ-glycidyl etheroxypropyl trimethoxysilane, 0.5 parts of carbon fiber, 325 mesh glass flakes 5.0 parts, floating aluminum powder: 3.0 parts, 200 mesh hollow glass beads 16.0 parts, 100 mesh hollow glass beads 10.0 parts, 60 mesh hollow glass beads 6.0 parts, asbestos fiber powder 3.0 parts, low melting point glass powder 5.0 parts . 200-mesh hollow glass beads come from 3M Company in the United States, ...

Embodiment 2

[0045] In this embodiment, the inorganic silicon-organic silicon copolymer heat-resistant and heat-insulating coating for energy-saving heating pipelines is calculated in parts by weight, and the specific formula is as follows:

[0046] 6.5 parts of absolute ethanol, 2.5 parts of isopropanol, 20.0 parts of ethyl silicate-40, 1.5 parts of deionized water, 0.2 parts of hydrochloric acid with a mass fraction of 35%, 0.3 parts of zinc oxide, γ-glycidyl ether oxypropyl 3.0 parts of trimethoxysilane, the above is silane-modified silicate prepolymer;

[0047] 19.0 parts of W991-6 silicone resin, 1.6 parts of γ-glycidyl etheroxypropyl trimethoxysilane, 0.4 parts of carbon fiber, 5.0 parts of 325 mesh glass flakes, 2.0 parts of floating aluminum powder, 15.0 parts of 200 mesh hollow glass beads Parts, 13.0 parts of 100 mesh hollow glass microspheres, 3.0 parts of 60 mesh hollow glass microspheres, 3.0 parts of asbestos fiber powder, 4.0 parts of low melting point glass powder. The 200...

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Abstract

The invention provides inorganic silicon-organosilicon copolymerized temperature-resistant heat-insulating coating as well as a preparation method and a use method thereof. The coating comprises a silicate prepolymer which is prepared from, by weight, 6.0 to 7.0 parts of absolute ethyl alcohol, 2.0 to 3.0 parts of isopropanol, 20.0 to 25.0 parts of ethyl silicate-40, 1.0 to 1.5 parts of deionizedwater, 0.1 to 0.3 part of hydrochloric acid with the mass fraction of 35% and 0.3 to 0.5 part of zinc oxide. The method includes adding 2.5-4.0 parts by weight of a silane coupling agent into the silicate prepolymer; heating and reacting to prepare a silane modified silicate prepolymer; adding 12.0-20.0 parts by weight of an organosilicon polymer to prepare an inorganic silicon-organosilicon copolymer; adding, by weight, 1.5-3.0 parts of a silane coupling agent, 0.3-0.6 part of carbon fibers, 2.0-4.0 parts of floating aluminum powder, 30.0-40.0 parts of hollow glass beads, 5.0-6.0 parts of glass flakes, 3.0-4.0 parts of asbestos fiber powder and 4.0-5.0 parts of low-melting-point glass powder to prepare the temperature-resistant heat-insulation coating. The hollow glass beads and the glassflakes are composite heat insulation fillers. The prepared temperature-resistant heat-insulating coating is used for a heat supply pipeline, and the temperature-resistant heat-insulating effect of the heat supply pipeline is improved.

Description

technical field [0001] The invention relates to the fields of cogeneration heat supply pipeline cooling and energy saving, in particular to an inorganic silicon-organosilicon copolymerized heat-resistant heat-insulating coating and its preparation and use method, and in particular to an inorganic silicon-organic silicon-organic coating used for energy saving of heating pipelines Silicone copolymerized heat-resistant and heat-insulating coating and its preparation and use methods. Background technique [0002] "Energy saving and emission reduction" is an important core of my country's social and economic development, emphasizing the implementation of industrialization demonstration of energy saving technology and equipment. The country encourages the development of combined heat and power technology. In recent years, domestic heating renovation projects have developed rapidly. There are more and more applications of heating pipelines, and the distances are getting farther and...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D5/10C09D5/33C09D7/61C09D7/62B05D5/00B05D7/24B05D3/00
CPCB05D3/007B05D5/00B05D7/24B05D2254/02B05D2518/10C08K2003/0812C08L2201/08C09D5/004C09D5/103C09D5/18C09D183/04C09D7/61C09D7/62C09D7/70C08K13/06C08K9/06C08K3/36C08K7/06C08K3/08C08K7/28C08K7/00C08K3/40
Inventor 梁新磊王刚易祖耀李娜韩恩厚刘亚伟石天庆商永强张斌王震宇王帅刘茜常峻玮
Owner HUADIAN ZHENGZHOU MECHANICAL DESIGN INST
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