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Calcium silicate board interlayer binder as well as preparation method and application thereof

A calcium silicate board and binder technology, applied in the field of building decoration materials, can solve the problems of difficulty in meeting, rising cost, weakening the bonding strength between layers of boards, etc., so as to improve the bonding strength between layers and enhance the surface strength of boards , the effect of enhancing the bond strength between layers

Active Publication Date: 2022-05-24
GUANGDONG POLYTECHNIC COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the external pressure increases to balance with the internal pressure, the pressure inside the plate will make the interlayer of the plate loose, and this unfavorable factor weakens the bonding strength between the plate layers
[0005] So far, there is no good solution to the effect of the expansion of water and air in the gaps of the boards on the bonding strength between the boards. Secondly, calcium silicate boards have been developed in my country for more than 20 years. Its board manufacturing technology, The formula has reached a certain degree of maturity, and the mechanical equipment is relatively complete. If the formula and equipment of the calcium silicate board are reformed, a lot of manpower and material resources will be spent, and the increase in cost will not be able to meet the needs of the market and customers. needs

Method used

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  • Calcium silicate board interlayer binder as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this example, a calcium silicate interlayer adhesive is prepared, which is composed of the following raw materials by weight: lithium hydroxide 7%, lithium carbonate 1.9%, pentanediol 1%, polyacrylate 0.1%, 010 organic Silicon defoamer is 0.5% and water is 89.5%. The specific preparation process is as follows: adding lithium hydroxide, lithium carbonate, stabilizer, dispersant, and defoaming agent to water in sequence, stirring and mixing evenly, and then standing for 10 minutes to obtain calcium silicate interlayer adhesive.

[0038] A construction method of calcium silicate board interlayer adhesive, the process is as follows:

[0039] S1: The calcium silicate board raw materials (in parts by weight: 46.8 parts of silica sand, 33.8 parts of lime, 1.5 parts of glass fiber, 16 parts of asbestos, and the volume of water are 5.66 times the volume of the dry material are mixed to obtain a board slurry, and then the The plate slurry is squeezed into several thin blanks,...

Embodiment 2

[0049] In this example, a calcium silicate interlayer adhesive is prepared, which is composed of the following raw materials by weight: 6.5% lithium hydroxide, 1.5% lithium carbonate, 1% pentanediol, 0.1% polyacrylate, 910 organic Silicon defoamer is 0.5% and water is 90.4%. The specific preparation process is as follows: add lithium hydroxide, lithium carbonate, stabilizer, dispersant and defoamer into water in sequence, stir and mix evenly, and then let stand for 10 minutes to obtain calcium silicate interlayer adhesive.

[0050] A construction method of calcium silicate board interlayer adhesive, the process is as follows:

[0051] S1: Mix the calcium silicate board raw materials (by weight: 46.8 parts of silica sand, 33.8 parts of lime, 1.5 parts of glass fiber, 16 parts of asbestos, water with a volume of 5.66 times the volume of the dry material) to obtain a board slurry, and then The plate slurry is squeezed into several thin blanks, and the thickness of the thin blank...

Embodiment 3

[0061] In this example, a calcium silicate interlayer adhesive is prepared, which is composed of the following raw materials by weight: lithium hydroxide 7.5%, lithium carbonate 2%, butanediol 1%, polyacrylate 0.1%, 010 organic Silicon defoamer is 0.5% and water is 88.9%. The specific preparation process is as follows: adding lithium hydroxide, lithium carbonate, stabilizer, dispersant, and defoaming agent to water in sequence, stirring and mixing evenly, and then standing for 10 minutes to obtain calcium silicate interlayer adhesive.

[0062] A construction method of calcium silicate board interlayer adhesive, the process is as follows:

[0063] S1: Mix the calcium silicate board raw materials (by weight: 46.8 parts of silica sand, 33.8 parts of lime, 1.5 parts of glass fiber, 16 parts of asbestos, water with a volume of 5.66 times the volume of the dry material) to obtain a board slurry, and then The plate slurry is squeezed into several thin blanks, and the thickness of th...

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Abstract

The invention discloses a calcium silicate board interlayer binder as well as a preparation method and application thereof. The calcium silicate board interlayer binder comprises the following components in percentage by weight: 4.8-10.8% of lithium hydroxide, 1.5-3.5% of lithium carbonate, 0.4-10% of an auxiliary agent and 76-93% of water. Through a series of reactions of lithium hydroxide and lithium carbonate in the calcium silicate board, the problem that in the high-pressure and high-temperature steam curing process of the calcium silicate board, due to the fact that internal air and water expand and evaporate at high temperature and high pressure, the bonding strength between board layers is weakened in a loose space is solved; according to the present invention, the calcium silicate board interlayer binder has the high reinforcing effect, and the components and the calcium silicate board raw material components have the good affinity, such that the calcium silicate board interlayer binder and the calcium silicate board raw material components are tightly combined so as to enhance the compactness, the strength and the hardness of the calcium silicate board;

Description

technical field [0001] The invention belongs to the technical field of building decoration materials, and in particular relates to a calcium silicate board interlayer binder and a preparation method and application thereof. Background technique [0002] Since the introduction of calcium silicate board production technology into my country in the 1990s, the output of calcium silicate board in my country has grown rapidly in the past 20 years, and its application range has become wider and wider, and it has gradually developed into one of the leading materials for building boards. [0003] However, the surface strength and interlayer bonding strength of the calcium silicate board are not high, and the strength will be weaker after the whole surface is polished and brushed. , it will cause the board surface to fade and the texture to fall off. These problems bring great restrictions on the multi-field application of calcium silicate boards. So far, there is no reliable method f...

Claims

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Application Information

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IPC IPC(8): C04B28/18
CPCC04B28/182C04B2111/00663C04B2111/00637C04B2201/50C04B22/062C04B22/10C04B2103/0068C04B2103/408C04B2103/50Y02W30/91
Inventor 张荣辉黄思龙郑永亨钱喜坚
Owner GUANGDONG POLYTECHNIC COLLEGE
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