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Environmental-protection flame-retardant low-thermal-conductivity thermal-insulation sheet material, and preparation method thereof

A thermal insulation board and low thermal conductivity technology, which is applied in the field of environmentally friendly flame-retardant low thermal conductivity thermal insulation board and its preparation, can solve the problems of low quality insulation board, high material density, high production cost, etc., achieve good environmental performance, protect the environment, and reduce waste Effect

Inactive Publication Date: 2018-07-24
HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional thermal insulation boards currently on the market include composite material thermal insulation boards, cement foam thermal insulation boards, and magnesite thermal insulation boards. Composite material thermal insulation boards have low quality and good thermal insulation performance, but the production cost is relatively high; other types of thermal insulation boards are relatively cheap. But the material density is higher, and the cost of construction and installation is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An environmentally friendly flame-retardant low-thermal-conduction thermal insulation board in this embodiment includes the following raw materials in parts by weight:

[0037] 70 parts of wood fiber, 10 parts of flame retardant additive, 8 parts of adhesive, 2 parts of adhesion promoter, 8 parts of reinforcing filler, 1 part of bamboo charcoal, 2 parts of fly ash, 2 parts of nano additive, 1 part of vitrified microbead 1 part, ceramic sand 1 part, shell powder 2 parts.

[0038] The preparation method of lignocellulosic fiber in this example is as follows: cut rice straw, wheat straw, corn straw and sorghum straw into 50-60mm small sections according to the weight ratio of 2:1:3:1, and soak them in 2wt% hydrogen peroxide Take it out after 120 minutes, wash it with clean water until neutral, put it in an oven, dry it at 80°C, and then put it in an aqueous solution of sodium hydroxide so that the mass ratio of sodium hydroxide to mixed straw is 1:4; after that At 70°C, h...

Embodiment 2

[0050] An environmentally friendly flame-retardant low-thermal-conduction thermal insulation board in this embodiment includes the following raw materials in parts by weight:

[0051] 80 parts of wood fiber, 18 parts of flame retardant additives, 12 parts of adhesives, 4 parts of adhesion promoters, 14 parts of reinforcing fillers, 3 parts of bamboo charcoal, 4 parts of fly ash, 4 parts of nano additives, 2 parts of vitrified microbeads 2 parts, ceramic sand 2 parts, shell powder 4 parts.

[0052] The preparation method of lignocellulosic fiber in this example is as follows: cut rice straw, wheat straw, corn straw and sorghum straw into 50-60mm small sections according to the weight ratio of 2:1:3:1, and soak them in 3wt% hydrogen peroxide Take it out after 160 minutes, wash it with clean water until neutral, put it in an oven, dry it at 100°C, and then put it in an aqueous solution of sodium hydroxide so that the mass ratio of sodium hydroxide to mixed straw is 1:4; after tha...

Embodiment 3

[0064] An environmentally friendly flame-retardant low-thermal-conduction thermal insulation board in this embodiment includes the following raw materials in parts by weight:

[0065] 75 parts of wood fiber, 14 parts of flame retardant additives, 10 parts of adhesives, 3 parts of adhesion promoters, 11 parts of reinforcing fillers, 2 parts of bamboo charcoal, 3 parts of fly ash, 3 parts of nano additives, 1.5 parts of vitrified microbeads 1.5 parts of ceramic sand, 3 parts of shell powder.

[0066] The preparation method of lignocellulosic fiber in this example is as follows: cut rice straw, wheat straw, corn straw and sorghum straw into 50-60mm small sections according to the weight ratio of 2:1:3:1, and put 2-3wt% hydrogen peroxide Take it out after 140min of soaking in water, wash it with clean water until neutral, put it in an oven, dry it at 90°C, and then put it in an aqueous solution of sodium hydroxide, so that the mass ratio of sodium hydroxide to mixed straw is 1:4 ...

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Abstract

The invention provides an environmental-protection flame-retardant low-thermal-conductivity thermal-insulation sheet material, and a preparation method thereof. The environmental-protection flame-retardant low-thermal-conductivity thermal-insulation sheet material comprises, by weight, 70 to 80 parts of wood fiber, 10 to 18 parts of a flame-retardant additive, 8 to 12 parts of an adhesive, 2 to 4parts of an adhesion promoter, 8 to 14 parts of a reinforcing filling material, 1 to 3 parts of bamboo charcoal, 2 to 4 parts of fly ash, 2 to 4 parts of a nanometer additive, 1 to 2 parts of glass bead, 1 to 2 parts of ceramic sand, and 2 to 4 parts of shell powder. The environmental-protection flame-retardant low-thermal-conductivity thermal-insulation sheet material is excellent in thermal insulation effect, high in structure strength, excellent in flame resistance, low in pollution gas such as sheet material formaldehyde, and light in weight; a large amount of agricultural waste is adopted, so that forest resource is saved; the raw materials are cheap and easily avaiable; the preparation method is simple; the practical value is relatively high; and the application prospect is promising.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation board processing, in particular to an environmentally friendly flame-retardant low thermal conductivity thermal insulation board and a preparation method thereof. Background technique [0002] The development of building insulation materials is an important guarantee for the country to develop energy-saving buildings and promote green buildings in new rural areas. However, the development of wall insulation materials is not satisfactory. It has light weight and excellent thermal insulation performance, and there are too few biomass lightweight insulation products that can be directly used and assembled on the construction site. The construction site is wet and the construction efficiency is low. situation will continue to exist for a long time. [0003] On the one hand, after the insulation construction of the building is completed, the indoor temperature can be adjusted and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/28C04B111/28
CPCC04B26/28C04B2111/00008C04B2111/00017C04B2111/28C04B16/02C04B22/02C04B22/066C04B22/06C04B22/16C04B24/2623C04B24/04C04B14/06C04B24/14C04B24/00C04B14/00C04B14/022C04B18/08C04B14/30C04B14/305C04B14/309C04B14/24C04B18/023C04B14/28
Inventor 王磊
Owner HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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