Silane modified polyether sealant and preparation method thereof

A silane-modified polyether and sealant technology, applied in the direction of polyether adhesives, adhesives, adhesive types, etc. The effect of adhesion, broadening the scope of application, and quick follow-up repair

Active Publication Date: 2017-05-10
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional silane-modified polyether sealant products have poor i

Method used

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  • Silane modified polyether sealant and preparation method thereof
  • Silane modified polyether sealant and preparation method thereof
  • Silane modified polyether sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A silane-modified polyether sealant with high initial tack, its raw materials and parts by weight: 30 parts of silane-modified polyether polymer, 10 parts of plasticizer polyether polyol PPG3000, reactive diluent CH 3 (C 2 h 5 O) 2 -Si-(CH 2 O) 3 -C 2 h 5 8 parts, 40 parts of nano-active calcium carbonate for extender filler, 5 parts of liquid rosin resin, 10 parts of titanium dioxide, 0.05 part of polyamide wax, 0.5 part of light stabilizer BASF 326 and 0.5 part of BASF 770, coupling agent N-aminoethyl 1.5 parts of base-γ-aminopropyltrimethoxysilane, 2 parts of vinyltrimethoxysilane as a dehydrating agent, and 0.5 parts of dibutyltin diacetylacetonate as a catalyst.

[0036] Wherein, the silane-modified polyether polymer structure is as follows:

[0037]

[0038] And the viscosity is 60 Pa·s.

[0039] The preparation method of the silane-modified polyether sealant of above-mentioned high initial tack comprises the following steps:

[0040] Mix silane-modifi...

Embodiment 2

[0042] A kind of silane-modified polyether sealant of high initial tack, its raw material and parts by weight are composed of: 50 parts of silane-modified polyether polymer, 30 parts of plasticizer DIDP, reactive diluent (CH 3 O) 3 -Si-CH 2 O-CH 3 1 part, 20 parts of nano-active calcium carbonate for extender filler and 10 parts of heavy calcium carbonate, 10 parts of initial adhesion promoter terpene resin, 1 part of carbon black, 2 parts of thixotropic organic bentonite, light stabilizer BASF 245 0.1 0.25 parts of coupling agent γ-aminopropyl triethoxysilane and 0.25 parts of isocyanatopropyl triethoxysilane, 3 parts of water removing agent γ-mercaptopropyl trimethoxysilane, catalyst dilauric acid di 3 parts of butyl tin.

[0043] The structure of the silane-modified polyether polymer is as follows:

[0044]

[0045] And the viscosity is 1Pa·s.

[0046] The preparation method of the silane-modified polyether sealant of above-mentioned high initial tack comprises the...

Embodiment 3

[0049]A kind of silane-modified polyether sealant of high initial tack, its raw material and parts by weight are composed of: 40 parts of silane-modified polyether polymer, 25 parts of plasticizer DINP, reactive diluent (CH 3 O) 3 -Si-(CH 2 O) 2 -C 2 h 5 4 parts, 15 parts of filler silica powder and 10 parts of kaolin, 3 parts of liquid rosin resin and 2 parts of terpene resin, 6 parts of titanium dioxide, 1 part of carbon black, 0.5 part of thixotropic agent hydrogenated castor oil And 1 part of polyamide wax, 1 part of light stabilizer BASF UV-9 and 1 part of BASF 540, 3 parts of coupling agent γ-aminopropyl triethoxysilane, water remover 3-isocyanatopropyl trimethoxy 1 part of silane, 0.5 part of vinyltrimethoxysilane, 1 part of catalyst stannous octoate and 1 part of dibutyltin diacetylacetonate.

[0050] The structure of the silane-modified polyether polymer is as follows:

[0051]

[0052] And the viscosity is 10 Pa·s.

[0053] The preparation method of the si...

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Abstract

The invention relates to a silane modified polyether sealant and a preparation method thereof. The silane modified polyether sealant is prepared from a silane modified polyether polymer, a plasticizer, a reactive diluent, bulking filler, an initial adhesion accelerator and other components. The initial adhesion of the silane modified polyether sealant is improved substantially under the synergistic effect of the reactive diluent and the initial adhesion accelerator, rapid positioning and follow-up repairing can be realized, and the sealant is convenient to use. The silane modified polyether sealant effectively broadens the application range of reactive silane modified polyether sealants and has an active promoting effect on popularization of environment-friendly products.

Description

technical field [0001] The invention relates to the field of chemical materials, in particular to a silane-modified polyether sealant and a preparation method thereof. Background technique [0002] Sealant is a material used to fill voids (such as cavities, joints or seams, etc.). The sealant is a kind of fluid or paste shapeless material when it is used. After it is applied in the gap or joint, it can be stably bonded to the substrate by drying, temperature, solvent volatilization or chemical reaction, etc., and gradually becomes plastic. Solid, viscoelastic or elastic sealing material, which plays the role of bonding, fixing and sealing. [0003] In recent years, sealants have been widely used in industrial and civil fields such as construction, automobiles, ships, locomotives, electronics, aerospace, communications, and aerospace. In some special occasions, such as home interior decoration, electronic components and automotive interior assembly, etc., the sealant needs ...

Claims

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Application Information

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IPC IPC(8): C09J171/02C09J11/08
CPCC08L2205/025C08L2205/03C08L2205/035C09J11/08C09J171/02C08L71/02C08L93/04C08L77/00C08L45/00
Inventor 龙飞陈建军陈洋庆陈何国蒋金博陈弘高敏华
Owner GUANGZHOU BAIYUN CHEM IND
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