Environmental-protection organic silicon-modified polyether building sealant

A sealant and silicone technology, applied in the direction of polyether adhesives, adhesives, adhesive types, etc., can solve the problems of sealant aging, compatibility limitations, and different chemical structures, and achieve excellent sealing, waterproof, and adhesive Good adhesion and excellent effect

Inactive Publication Date: 2013-06-12
GUANGDONG XINZHAN NEW CHEM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of phthalates as plasticizers will cause the following problems: 1. More and more countries and regions have recognized the harm of phthalates to the environment and the human body. Phthalates are listed as prohibited or restricted chemicals; 2. After the sealant is used on the building, as time goes by, the phthalates will gradually volatilize and lose, and the sealant will Gradual aging leads to loss of elasticity; 3. The chemical structure of phthalates and silyl-terminated polyether prepolymers is different, and the compatibility is limited. After a certain amount is exceeded, it will be separated from the product

Method used

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  • Environmental-protection organic silicon-modified polyether building sealant
  • Environmental-protection organic silicon-modified polyether building sealant
  • Environmental-protection organic silicon-modified polyether building sealant

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0028] Prepare

[0029] Silicone modified polyether binder

[0030] 36 kg

[0031] 15.5 kg

[0032] Calcium Carbonate 40kg

[0033] Vinyltrimethoxysilane 6kg

[0034] Dibutyltin dilaurate 0.5 kg

[0035] Anti-aging agent 2 kg

[0036] The above components were mixed uniformly in a planetary mixer under vacuum, and then sealed and packaged in plastic bottles to obtain sealant A. The performance test results are shown in Table 1.

preparation Embodiment 2

[0038] Prepare

[0039] Silicone modified polyether binder

[0040] 30 kg

[0041] 28 kg

[0042] Calcium Carbonate 20kg

[0043] Titanium dioxide 10 kg

[0044] Mercaptopropyltrimethoxysilane 8kg

[0045] Dioctyltin dilaurate 2kg

[0046] Anti-aging agent 2 kg

[0047] The above components were mixed evenly in a planetary mixer under vacuum, and then sealed and packaged in plastic bottles to obtain sealant B. The performance test results are shown in Table 1.

preparation Embodiment 3

[0049] Prepare

[0050] Silicone modified polyether binder 1

[0051] 18 kg

[0052] Silicone modified polyether binder 2

[0053] 30 kg

[0054] 30 kg

[0055] Silica 12 kg

[0056] Aminoethylaminopropyltrimethoxysilane 8 kg

[0057] 1.5kg dibutyltin dipivalate

[0058] Anti-aging agent 0.5 kg

[0059] The above components were uniformly mixed in a planetary mixer under vacuum, and then sealed and packaged in plastic bottles to obtain sealant C. The performance test results are shown in Table 1.

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PUM

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Abstract

The invention relates to an adhesive, in particular to an environmental-protection organic silicon-modified polyether building sealant which contains a base material, a filler, a plasticizer and a catalyst, wherein the plasticizer is high-polymer polyether polyol with the molecular weight being higher than 600. The environmental-protection organic silicon-modified polyether building sealant can be used for sealing joints of outer stone curtain walls and aluminum plate curtain walls of buildings, door and window joints and indoor decorative joints, has good bonding performance and elasticity and no pollution or corrosion for building materials, and can take a good sealing and water preventing effect.

Description

【Technical field】 [0001] The present invention relates to an adhesive. 【Background technique】 [0002] Currently, sealants use phthalates as plasticizers, such as Chinese invention patent applications 200810236985.2 and 200510132669.7. However, the use of phthalates as plasticizers will cause the following problems: 1. More and more countries and regions have recognized the harm of phthalates to the environment and the human body. Phthalates are listed as prohibited or restricted chemicals; 2. After the sealant is used on the building, as time goes by, the phthalates will gradually volatilize and lose, and the sealant will Gradual aging leads to loss of elasticity; 3. Phthalate esters have different chemical structures from silyl-terminated polyether prepolymers, and their compatibility is limited. After a certain amount is exceeded, they will be separated from the product. 【Content of invention】 [0003] The invention aims to provide an environment-friendly silicone-mod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J171/00C09K3/10
Inventor 王奉平周福维
Owner GUANGDONG XINZHAN NEW CHEM MATERIAL
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