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Environmentally-friendly organosilicon-modified polyurethane adhesive sealant

A technology of bonding and sealing, silicone, applied in the direction of polyurea/polyurethane adhesive, polyether adhesive, adhesive, etc., can solve the problems of sealant aging, different chemical structure, segregation, etc., and achieve long-term elasticity Effect

Inactive Publication Date: 2013-10-09
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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  • Environmentally-friendly organosilicon-modified polyurethane adhesive sealant
  • Environmentally-friendly organosilicon-modified polyurethane adhesive sealant
  • Environmentally-friendly organosilicon-modified polyurethane adhesive sealant

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0028] Prepare

[0029]

[0030] The structure of R" is -C 6 h 4 CH 2 C 6 h 4 - 20 kg

[0031] 20 kg

[0032] Kaolin 40kg

[0033] Calcium carbonate 18.85 kg

[0034] Aminopropyltrimethoxysilane 1 kg

[0035] 0.05 kg dibutyltin dipivalate

[0036] Anti-aging agent 0.1 kg

[0037] The above components were uniformly mixed 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

[0039] Prepare

[0040] Binder

[0041]

[0042] The structure of R" is -C 6 h 4 CH 2 C 6 h 4 - 50kg

[0043] 32 kg

[0044] Silica 12 kg

[0045] Aminoethylaminopropyltrimethoxysilane 5 kg

[0046] Dibutyltin oxide 0.5 kg

[0047] Anti-aging agent 0.5 kg

[0048] The above components were mixed uniformly 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

[0050] Prepare

[0051]

[0052] The structure of R" is -C 6 h 4 CH 2 C 6 h 4 - 35kg

[0053] 15 kg

[0054] Carbon black 9 kg

[0055] Calcium carbonate 38.85 kg

[0056] Aminoethylaminopropyltrimethoxysilane 1 kg

[0057] Dibutyltin dilaurate 0.05 kg

[0058] Anti-aging agent 0.1 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 discloses an environmentally-friendly organosilicon-modified polyurethane adhesive sealant and an adhesive. The sealant contains a base material, a filler, a plasticizer and a catalyst, wherein the plasticizer is macromolecular polyether polyol of which the molecular weight is over 600. The sealant can be used for adhering glass and sealing joints of transport vehicles such as automobiles, buses and motor cars and adhering and sealing containers in the field of transport, and sealing door and window joints and indoor decoration joint filling sealing in the field of building. The sealant has high adhesive performance and high elasticity, avoids polluting and corroding adhered base material and can conduct a good sealing and waterproof function.

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): C09J175/04C09J171/00C09K3/10
Inventor 余德业王奉平
Owner GUANGDONG XINZHAN NEW CHEM MATERIAL
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