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Composite binder for inorganic insulation boards and preparation method thereof

An inorganic thermal insulation board and adhesive technology, applied in the direction of inorganic adhesives, adhesives, adhesive additives, etc., can solve the problems of poor adhesion of inorganic materials, low temperature resistance of organic adhesives, poor fire resistance, etc.

Active Publication Date: 2021-03-12
咸阳非金属矿研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]In the production process of general fiber inorganic insulation boards, adhesives are used to bond the interface between mineral fibers and the matrix, and the use of inorganic materials has poor adhesion and poor chemical stability , uneven dispersion of fibers, agglomeration, organic binders are not resistant to high temperatures, and poor fire resistance

Method used

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  • Composite binder for inorganic insulation boards and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Raw materials include: 12% ammonium dihydrogen phosphate, 70% magnesium oxide, 3.0% borax, 3.5% retarder, 8% silicate, 3.5% water-based additives;

[0021] 2. Phosphate preparation: add ammonium dihydrogen phosphate, magnesium oxide, borax, and retarder into the self-made reverse mixing container according to the above ratio for high-speed mixing, stirring speed 360r / min, stirring time 12min;

[0022] 3. Silicate preparation: Prepare sodium silicate, kaolin, and bentonite at a ratio of 5:3:2, and add 8% of the prepared silicate into the phosphate mixture and mix and stir for 10 minutes.

[0023] 4. Compounding of phosphate and silicate: add the prepared phosphate and silicate to the mixer in turn, the stirring speed is 450 r / min, and the stirring time is 8 minutes;

[0024] 5. Hydrophobic additive preparation: Weigh MTMS, methanol, and water in proportion, add methanol to MTMS and stir until transparent, then add water, and stir evenly.

[0025] 6. Preparation of ra...

Embodiment 2

[0028] 1. Raw material composition: ammonium dihydrogen phosphate 10%, magnesium oxide 72%, borax 3.2%, retarder 4%, silicate 7%, water-based additive 3.8%;

[0029] 2. Phosphate preparation: add ammonium dihydrogen phosphate, magnesium oxide, borax, and retarder in a certain proportion into a self-made reverse mixing container for high-speed mixing, stirring speed 380r / min, stirring time 15min;

[0030] 3. Silicate preparation: Prepare sodium silicate, kaolin, and wollastonite at a ratio of 6:2:2, and add 7% of the prepared silicate into the phosphate mixture and mix and stir for 10 minutes.

[0031] 4. Compounding of phosphate and silicate: add the prepared phosphate and silicate to the mixer in turn, the stirring speed is 450 r / min, and the stirring time is 8 minutes;

[0032] 5. Hydrophobic additive preparation: Weigh MTMS, methanol, and water in proportion, add methanol to MTMS and stir until transparent, then add water, and stir evenly.

[0033] 6. Preparation of raw ma...

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Abstract

The invention provides a composite binder for inorganic insulation boards. The composite binder is prepared from the following raw materials in percentage by mass: 8%-12% of ammonium dihydrogen phosphate, 70%-75% of magnesium oxide, 3.0%-3.5% of borax, 3%-6% of a retarder, 6%-8% of silicate and 2%-5% of a water-based additive, meanwhile, the invention further provides a preparation method of the composite binder for the inorganic insulation boards, and the preparation method comprises the steps of raw material weighing, silicate preparation, phosphate and silicate compounding and the like. Theinorganic composite binder provided by the invention solves the key problems that an inorganic composite thermal insulation material is poor in binding property, uneven in fiber dispersion and agglomeration, and an organic binder is not resistant to high temperature and poor in fire resistance.

Description

technical field [0001] The invention relates to a binder, which is mainly used for bonding mineral fibers and porous minerals of inorganic heat preservation boards, and specifically refers to a composite binder for inorganic heat preservation boards and a preparation method thereof. Background technique [0002] With the continuous promotion and implementation of my country's energy-saving policies, building energy-saving indicators continue to increase. In order to meet my country's building energy-saving requirements, the external insulation materials for building exterior walls are proposed to have both thermal insulation, durability, fire prevention, no hollowing, no cracking, and good construction performance. Wait for higher requirements. In recent years, inorganic thermal insulation materials that have entered the market and been widely used have outstanding performance in thermal insulation, fire prevention, construction, etc. Compared with organic thermal insulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/02C09J11/04C09J11/06C09J11/08C04B28/34C04B111/27
CPCC09J1/02C09J11/04C09J11/06C09J11/08C04B28/344C04B2201/32C04B2201/50C04B2111/27C04B22/066C04B22/0013C04B2103/22C04B12/04C04B14/106C04B14/104C04B14/18C04B14/043C04B24/42C04B24/026C04B14/46C04B14/185Y02W30/91
Inventor 张红林王鸽郑长文
Owner 咸阳非金属矿研究设计院有限公司
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