Thermal insulation material and its preparing process and usage

A technology for thermal insulation and raw materials, which is applied in sustainable waste treatment, solid waste management, climate sustainability, etc., and can solve the problems that the engineering surface is prone to hollowing, the insulation layer is not easy to dry, and the service life is not long. Increase thermal insulation effect, poor thermal insulation effect, simple construction effect

Active Publication Date: 2007-05-16
SHANGHAI KENAI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a thermal insulation material and its preparation method and application, which uses industrial by-product gypsum to compound vitrified microbeads, which not only maintains the inherent characteristics of gypsum, but also increases the thermal insulation effect , its homogeneity is good, it is not easy to deform, and the material shrinkage rate is small; it has completely changed the use of ordinary expanded perlite insulation materials when the slurry is mixed. Dryness, easy to cause thermal bridges, fast energy loss, low strength, poor thermal insulation effect, easy hollowing, cracking on the engineering surface, short service life and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] First put 77 parts of building gypsum into the mixer, and then put in 0.4 parts of gypsum retarder and stir evenly. The building gypsum is phosphogypsum or desulfurized gypsum, which is an industrial by-product of gypsum. <40min; two-hour wet flexural strength ≥ 2.5Mpa, compressive strength ≥ 5Mpa. The gypsum retarder is a high-efficiency protein-based composite gypsum retarder.

[0039] After the construction gypsum and gypsum retarder are evenly stirred, add 2 parts of thickener bentonite, 1.7 parts of rubber powder, 0.4 parts of water-retaining agent, 0.5 parts of reinforcing agent, and 18 parts of filler to continue stirring. The water-retaining agent is hydroxypropyl Methylcellulose water retaining agent. The reinforcing agent is wood fiber or dispersed PVA fiber. The rubber powder is redispersible latex powder. The filler is double fly powder.

[0040] After all the materials that have been added are mixed evenly, add 50 parts of vitrified microbeads and stir ...

Embodiment 2

[0043] First put 79 parts of building gypsum into the mixer, then put in 0.5 parts of gypsum retarder and stir evenly, after the building gypsum and gypsum retarder are mixed evenly, then add 1.9 parts of thickener bentonite, 1.7 parts of rubber powder, and 0.4 parts of water retaining agent , 0.5 parts of reinforcing agent, 16 parts of filler and continue to stir until all the added materials are mixed evenly to form a rubber compound, and then add 49 parts of vitrified microbeads and stir for 6-8 minutes.

[0044] Wherein: the building gypsum is phosphogypsum or desulfurized gypsum of industrial by-product gypsum, and the performance of the gypsum satisfies: initial setting time > 7 minutes, final setting time < 40 minutes; two-hour wet flexural strength ≥ 2.5Mpa, compressive strength ≥ 5Mpa. The gypsum retarder is a high-efficiency protein-based composite gypsum retarder. The water-retaining agent is hydroxypropyl methylcellulose water-retaining agent. The reinforcing agen...

Embodiment 3

[0046] First put 75 parts of building gypsum into the mixer, then put in 0.4 parts of gypsum retarder and stir evenly, after the building gypsum and gypsum retarder are mixed evenly, then add 1.9 parts of thickener bentonite, 2 parts of rubber powder, and 0.5 parts of water-retaining agent , 0.7 parts of reinforcing agent, 19.5 parts of filler and continue to stir. After all the materials that have been added are mixed evenly, add 50 parts of vitrified microbeads and stir for 6-8 minutes.

[0047] Wherein: the building gypsum is phosphogypsum or desulfurized gypsum of industrial by-product gypsum, and the performance of the gypsum satisfies: initial setting time > 7 minutes, final setting time < 40 minutes; two-hour wet flexural strength ≥ 2.5Mpa, compressive strength ≥ 5 Mpa . The gypsum retarder is a high-efficiency protein-based composite gypsum retarder. The water-retaining agent is hydroxypropyl methylcellulose water-retaining agent. The reinforcing agent is wood fiber ...

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Abstract

The invention discloses a thermal insulating material which is prepared from the following raw materials: construction gypsum 75-79 parts, thickening agent 1.9-2.3 parts, rubber powder 1.7-2.0 parts, water-loss reducer 0.4-0.5 part, gypsum retarder 0.3-0.5 part, reinforcing agent 0.5-0.7 part, filler 16-19.5 parts, vitreous beads 49-51 parts through a step of blending.

Description

technical field [0001] The invention relates to a thermal insulation material and a preparation method and application thereof. Background technique [0002] my country has now taken resource conservation as a basic national policy, and the importance of energy conservation has risen to a strategic and overall level. The pace of energy saving work is getting faster and faster. Building materials is an important industry for the development of circular economy in my country. Many industrial wastes can be used as alternative raw materials for the production of building materials. The comprehensive utilization of industrial waste is a way to develop a circular economy and build a resource-saving and environment-friendly building materials industry. By expanding the use of industrial solid waste as alternative raw materials in the building materials industry, we will vigorously develop materials with thermal insulation functions to provide the necessary material basis for bui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/14C04B24/38C04B18/24C04B16/06
CPCC04B28/14Y02W30/91C04B14/24C04B18/22C04B2103/20C04B2103/44C04B2103/46
Inventor 赵云龙
Owner SHANGHAI KENAI NEW MATERIAL TECH CO LTD
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