A kind of inorganic thermal insulation material and its preparation method and application

A technology of inorganic thermal insulation materials and raw materials, applied in the field of thermal insulation materials, can solve the problems of large capacity of thermal insulation materials, difficulty in performing thermal insulation, high thermal conductivity, etc., to reduce dry bulk density and thermal conductivity, increase strength and toughness, improve The effect of mechanical properties

Active Publication Date: 2018-06-26
重庆天维绿色建筑技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an inorganic thermal insulation material and its preparation method, which is used to solve the problem that the thermal insulation materials in the prior art have large volume, high thermal conductivity, and difficulty in achieving good thermal insulation. Insulation and other issues

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  • A kind of inorganic thermal insulation material and its preparation method and application
  • A kind of inorganic thermal insulation material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0028] An inorganic thermal insulation material, comprising the following raw materials in parts by weight: 70 parts of ordinary Portland cement grade 42.5, 30 parts of slag powder, 2 parts of pretreated nano-silica, 2 parts of polymer prepolymer, polycarboxylic acid water-reducing 0.5 parts of agent, 1 part of polypropylene fiber, 6 parts of 27.5% hydrogen peroxide aqueous solution, and 43 parts of water.

[0029] The slag powder is S95 grade (conforming to "GB / T 18046-2008 Granulated Blast Furnace Slag Powder Used in Cement and Concrete").

[0030] The raw material and weight ratio of pretreatment nano-silica are nano-silica: silane coupling agent: dehydrated alcohol=80:4:4, nano-silica is fumed silica A150, and silane coupling agent is Aminopropyltriethoxysilane.

[0031] The raw material of the polymer prepolymer and its weight ratio are epoxy resin: acrylic acid: catalyst: curing agent: silane coupling agent = 40:25:4:6:2, the catalyst in this embodiment is a tertiary am...

Embodiment 2

[0039] An inorganic thermal insulation material, comprising the following raw materials in parts by weight: 70 parts of ordinary Portland cement grade 52.5, 30 parts of fly ash, 3.5 parts of pretreated nano-silicon dioxide, 1.5 parts of polymer prepolymer, polycarboxylic acid reducing 0.7 parts of water agent, 0.6 parts of basalt fiber, 9 parts of 27.5% hydrogen peroxide aqueous solution, and 38 parts of water.

[0040]Fly ash is a first-class fly ash (in accordance with "GB1596-2005 for fly ash in cement and concrete").

[0041] The raw material and its weight ratio of pretreatment nano-silica are nano-silica: silane coupling agent: dehydrated alcohol=90:15:15, and nano-silica is fumed silica A250 and precipitated silica Grade C mixture, the silane coupling agent is glycidyl etheroxypropyl trimethoxysilane.

[0042] The raw material of polymer prepolymer and its weight ratio are epoxy resin: acrylic acid: catalyst: curing agent: silane coupling agent = 40: 27: 2: 7.2: 1.5. I...

Embodiment 3

[0050] An inorganic thermal insulation material, comprising the following raw materials in parts by weight: 65 parts of a mixture of ordinary Portland cement grade 42.5 and grade 52.5, 35 parts of fly ash, 5 parts of pretreated nano-silica, and 4 parts of polymer prepolymer , 1 part of polycarboxylate superplasticizer, 0.7 parts of a mixture of polypropylene fiber and basalt fiber, 9.5 parts of 27.5% hydrogen peroxide aqueous solution, and 41 parts of water.

[0051] Fly ash is a first-class fly ash (in accordance with "GB1596-2005 for fly ash in cement and concrete").

[0052] The raw material and weight ratio of pretreatment nano-silica is nano-silica: silane coupling agent: absolute ethanol = 120:7:7, nano-silica is precipitated white carbon black grade B, silane coupling agent It is γ-methacryloxypropyltrimethoxysilane.

[0053] The raw material of polymer prepolymer and its weight ratio are epoxy resin: acrylic acid: catalyst: curing agent: silane coupling agent = 50: 40...

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Abstract

The invention provides an inorganic heat preservation material and a preparation method and application thereof. The inorganic heat preservation material is prepared from cement, mineral admixtures, pretreated nanosilicon dioxide, macromolecular prepolymers, an additive, fibers, a foaming agent and water. Pretreated nanosilicon dioxide is prepared from nanosilicon dioxide, a silane coupling agent and absolute ethyl alcohol, and the macromolecular prepolymers are prepared from epoxy resin, crylic acid, a catalyst, a curing agent and a silane coupling agent. According to the inorganic heat preservation material and the preparation method and application thereof, the dry bulk density and heat conducting coefficient of the material can be effectively reduced, the toughness of the material can be improved, the strength and the toughness are properly improved on the existing basis, construction needs are met, and the selection range of building energy saving materials, external wall insulation materials and the like is greatly widened.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to an inorganic thermal insulation material and its preparation method and application. Background technique [0002] Cement-based foam thermal insulation materials have attracted widespread attention in the industry due to their excellent physical and economic properties, and set off a wave of research and development. At present, the common practice of cement-based foam thermal insulation materials is: one is physical method, water and foaming agent are made into stable foam, and then mixed with cement slurry, put into a mold and hardened to form a certain strength with a large number of pores The other is to add chemical foaming agent such as hydrogen peroxide directly into the cement slurry, put it into the mold and harden it to form a certain strength thermal insulation material. The bulk density of the above two cement foam insulation materials is 200kg / m 3 Above,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B14/06C04B16/06C04B18/14C04B22/06C04B24/24C04B14/46C04B103/30
CPCC04B28/04C04B18/14C04B14/062C04B24/24C04B22/06C04B16/0633C04B2103/302C04B14/46Y02W30/91
Inventor 李云军刘建
Owner 重庆天维绿色建筑技术开发有限公司
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