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Fire retardation type double component silicone structure adhesive

A flame-retardant, structural adhesive technology, applied in the field of materials, can solve problems such as no flame-retardant effect, and achieve the effect of promoting wide application

Inactive Publication Date: 2014-08-06
锋泾(中国)建材集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two-component silicone structural adhesives currently on the market generally have no flame-retardant effect. For example, the invention of patent No. 001167111 only provides a two-component silicone structural adhesive, and modern buildings have higher requirements for fire resistance. There is a huge market demand for the development of two-component silicone sealant with flame retardant effect

Method used

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  • Fire retardation type double component silicone structure adhesive
  • Fire retardation type double component silicone structure adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Put α,ω-dihydroxy polydimethylsiloxane, activated calcium carbonate, methyl silicone oil, magnesium hydroxide and ammonium metaphosphate into the mixer according to the components specified in Table 1 and stir for 30-60 minutes. The speed is 50-500 rpm, and then it is transported to the grinder through the connecting device for grinding to ensure that the filler and inorganic flame-retardant filler are evenly dispersed. Put the ground material into a high-speed dispersion mixer or a planetary mixer for stirring and evacuation, with a vacuum of 0.06-0.08mpa to remove water vapor. After evacuating for 30-60 minutes, it is discharged and packaged. This is component A.

[0034] Put the commercially available pigment carbon black and methyl silicone oil into the stirring tank and stir, after stirring evenly, use a grinder to grind to ensure that the carbon black is evenly dispersed. Put the ground pigment carbon black and methyl silicone oil into a planetary mixer and add p...

Embodiment 2

[0036] Repeat the method of Example 1 according to the content of each component specified in Table 1 below, but the coupling agent uses chloropropyltrioxyethylsilane instead of 3-aminopropyltriethoxysilane, and the crosslinking agent uses vinyl triethoxysilane. Butanone oximino silane replaced methyl tributyl ketoxime silane, and the catalyst used dibutyltin diacetate instead of dibutyltin dilaurate. The product performance test results are recorded in Table 2.

Embodiment 3

[0038] Repeat the method of Example 1 according to the content of each component specified in the following table 1, but the coupling agent uses N-β aminoethyl γ aminopropyl trimethoxysilane instead of chloropropyl trioxyethylsilane, crosslinking agent Methyltriacetoxysilane was used instead of vinyltributanoximinosilane, and propyl titanate was used as the catalyst instead of dibutyltin diacetate. The product performance test results are recorded in Table 2.

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Abstract

The present invention relates to a fire retardation type double component silicone structure adhesive, and belongs to the technical field of materials. The technical problem solved by the present invention is that the double component silicone structure adhesive does not have fire retardation. The technical scheme provides a fire retardation type silicone structure adhesive, which comprises a component A and a component B, wherein the component A contains 25-40 parts of alpha, omega-dihydroxypolydimethylsiloxane, 20-40 parts of a filler, 1-10 parts of methyl silicone oil, and 10-30 parts of an inorganic fire retardation agent, and the component B contains 10-30 parts of carbon black, 10-40 parts of methyl silicone oil, 10-40 parts of a coupling agent, 5-20 parts of a cross-linking agent, 10-40 parts of polymethyl triethoxy silane, and 0.1-0.5 part of a catalyst. The structure adhesive has fire retardation and self-extinguishing property during the use process so as to substantially promote wide application of the double component silicone structure adhesive.

Description

technical field [0001] The invention relates to a flame-retardant two-component silicone structural adhesive, which belongs to the field of material technology. Background technique [0002] Since the 1980s, the domestic glass curtain wall industry has developed rapidly. At this stage, almost all high-rise buildings must use glass curtain walls. Silicone structural adhesives are generally used on glass curtain walls for structural assembly, such as structural bonding of insulating glass and metal components. There are two types of silicone structural adhesives, one-component and two-component. Generally, major companies are using two-component silicone structural adhesives, because they can adjust the curing time and curing speed arbitrarily according to the environment, temperature and other factors. In addition to simple construction, it also has strong aging resistance, UV resistance, high bonding strength, and long service life. Compared with the one-component silicone...

Claims

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Application Information

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IPC IPC(8): C09J183/06C09J183/04C09J11/04
Inventor 任洪青杨再根
Owner 锋泾(中国)建材集团有限公司