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Modified nanometer composite polysulfide sealing glue for fireproof glass

A technology of polysulfide sealant and fireproof glass, applied in the field of sealant, can solve the problems of reduced adhesion and air tightness of fireproof glass, fire prevention of fireproof glass, failure of heat insulation, and bubbles of fireproof material of fireproof glass layer, etc. Reduction of airtightness and mechanical strength, protection of thermal insulation, effect of increasing airtightness

Active Publication Date: 2016-12-21
GUANGDONG NANOLUTION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the practical application of fire-resistant glass in buildings, the weather resistance of polysulfide sealant is reduced due to the synergistic aging of factors such as humidity, oxygen, ozone, and ultraviolet rays in the environment for a long time, and the sealant gradually loses its elasticity. The airtightness of the fireproof glass is reduced, resulting in the generation of air bubbles in the fireproof material between the fireproof glass layers, which makes the fireproof and heat insulation of the fireproof glass ineffective. Once a fire occurs, it will cause huge losses

Method used

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  • Modified nanometer composite polysulfide sealing glue for fireproof glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1) Modification of nano-powder: select white graphene with 1-10 layers, soak for 24 hours with 0.1% oleylamine aqueous solution, obtain white graphene modified powder after centrifugation and vacuum drying;

[0034] Step 2) Preparation of base rubber components: Weigh 100 parts of liquid polysulfide rubber and 1 part of silane coupling agent in turn according to parts by weight, add them to the mixer, mix and stir for 5 minutes, and then add 0.1 parts of step 1) preparation in sequence The modified white graphene powder and 30 parts of nano-silicon dioxide were mixed for 45 minutes at a mixing temperature of 40°C. After the components were mixed and stirred evenly, they were repeatedly ground by a three-roller mill three times to obtain the base rubber component. .

[0035] Step 3) Preparation of vulcanization components: Weigh 10 parts of epoxy resin, 5 parts of manganese dioxide and 1 part of diphenylguanidine successively according to parts by weight and add the...

Embodiment 2

[0038] Step 1) Modification of nano-powder: select 1-10 layers of white graphene to soak in 0.1% oleylamine aqueous solution for 24 hours, centrifuge and vacuum-dry to obtain white graphene-modified powder;

[0039] Step 2) Preparation of base rubber components: Weigh 100 parts of liquid polysulfide rubber and 5 parts of silane coupling agent sequentially according to parts by weight, add them to the mixer, mix and stir for 5 minutes, and then add 1 part in order to prepare in step 1) The modified white graphene powder and 10 parts of nano-silicon dioxide were mixed for 45 minutes at a mixing temperature of 80°C. After the components were mixed and stirred evenly, they were repeatedly ground by a three-roller mill three times to obtain the base rubber component. .

[0040] Step 3) Preparation of vulcanization components: Weigh 20 parts of epoxy resin, 15 parts of manganese dioxide and 5 parts of diphenylguanidine respectively in parts by weight and add them to the mixer at roo...

Embodiment 3

[0043] Step 1) Modification of nano-powder: select 1-10 layers of white graphene to soak in 0.1% oleylamine aqueous solution for 24 hours, centrifuge and vacuum dry to obtain white graphene-modified powder;

[0044] Step 2) Preparation of base rubber components: Weigh 100 parts of liquid polysulfide rubber and 1 part of silane coupling agent in turn according to parts by weight, add them to the mixer, mix and stir for 5 minutes, and then add 0.3 parts of step 1) preparation in sequence The modified white graphene powder and 25 parts of nano-silicon dioxide were mixed for 45 minutes at a temperature of 60°C. After the components were mixed and stirred evenly, they were repeatedly ground by a three-roller mill three times to obtain the base rubber component. .

[0045]Step 3) Preparation of the vulcanization component: Weigh 15 parts of epoxy resin, 5 parts of manganese dioxide and 1 part of diphenylguanidine successively by weight and add them to the mixer at room temperature a...

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Abstract

The invention relates to the technical field of sealing glues, and specifically discloses a modified nanometer composite polysulfide sealing glue for a fireproof glass. The modified nanometer composite polysulfide sealing glue comprises a base glue component and a vulcanization component according to a weight ratio of 100:5-20, wherein the base glue component comprises, by weight, 60-100 parts of a liquid state polysulfide rubber, 0.01-5 parts of modified nanometer powder, 10-50 parts of a reinforcing filler and 0.1-5 parts of a silane coupling agent, the vulcanization component comprises, by weight, 5-20 parts of a tackifier, 5-30 parts of a vulcanizing agent and 0.1-5 parts of a vulcanization accelerator, the number average molecular weight of the liquid state polysulfide rubber is 1000-4000, and the modified nanometer powder is one selected from modified white graphene, modified graphene and oxidized graphene. According to the present invention, the sealing property and the mechanical strength of the modified nanometer composite polysulfide sealing glue are increased while other properties are not affected, the process is simple and easy to operate, and the modified nanometer composite polysulfide sealing glue has high application value.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a modified nano-composite polysulfide sealant for fireproof glass and its preparation. Background technique [0002] With the development of science and technology and economy, countries all over the world have higher and higher requirements for building houses and public buildings. The market demand for fireproof and heat insulating glass is increasing year by year. In recent years, most of the bonding and sealing products used for fireproof glass are silicon Ketone, polyurethane and polysulfide sealants. The bonding performance of silicone sealant is average, and the cost is relatively high. Polyurethane sealant has good bonding performance, but poor acid and alkali resistance and aging resistance, while polysulfide sealant has poor bonding performance and aging resistance. Excellent performance and low cost at the same time, it has become the most commonly used type of seala...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J181/04C09J11/04C09J11/06C09J11/08
CPCC08K3/04C08K9/04C09J11/04C09J11/06C09J11/08C09J181/04C08K2201/011C08L63/00C08K13/06C08K2003/385C08K3/36C08K2003/2262C08K9/08
Inventor 段曦东李晓丰毛志浩
Owner GUANGDONG NANOLUTION SCI & TECH CO LTD
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