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MS sealant processing technology

A MS sealant, processing technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems affecting the extrusion and infiltration construction performance of the rubber compound, stress relaxation needs to be further improved, MS sealant Unhealthy environmental protection and other issues, to achieve the effect of improving anti-ultraviolet aging performance, less energy consumption in the implementation process, and less demanding equipment and reaction conditions

Inactive Publication Date: 2019-12-03
安徽蓝色经典新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the MS sealants on the market generally have the defects of being unhealthy and environmentally friendly, easy to pollute, poor adhesion, poor finish, and stress relaxation needs to be further improved.
In addition, the MS sealant without reinforcement and modification has low tensile strength and poor elasticity, and the MS sealant with reinforcement and modification increases the viscosity of the MS compound due to the addition of reinforcing agents, which affects the extrusion of the compound. On the other hand, it will increase the hardness of the rubber compound and affect the flexibility of the rubber compound.
[0005] The Chinese invention patent whose application publication number is CN104449623A discloses a kind of MS nail-free glue and its preparation method. It adopts white carbon black as reinforcing filler and methyl MQ resin as reinforcing composite filler. The obtained MS nail-free glue has relatively Good mechanical properties. When 10 parts of methyl MQ resin and 3 parts of white carbon black are added, the tensile strength of MS nail-free adhesive can reach 3.3 MPa, but the compatibility of methyl MQ resin and silane-modified polyether is poor. Poor, difficult to continue filling

Method used

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  • MS sealant processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of processing technique of MS sealant, is characterized in that, comprises the steps:

[0029] Step S1, hydroxyl-terminated polyether / 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disil Preparation of oxyalkylene polycondensate: the hydroxyl-terminated polyether, 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl] Ethyl]disiloxane and sodium hydroxide were added to tetrahydrofuran, stirred and reacted at 90°C for 6 hours, then cooled to room temperature, filtered to remove insoluble matter, and then rotary evaporated to remove the solvent to obtain hydroxyl-terminated polyether / 1, 1,3,3-Tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disiloxane polycondensate; the hydroxyl-terminated poly ether, 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxybicyclo[4.1.0]hept-3-yl]ethyl]disiloxane, sodium hydroxide , The ratio of the substance amount of tetrahydrofuran is 1:1:0.2:6;

[0030]Step S2, 5-(triethoxysilyl)-2-norbor...

Embodiment 2

[0035] A kind of processing technique of MS sealant, is characterized in that, comprises the steps:

[0036] Step S1, hydroxyl-terminated polyether / 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disil Preparation of oxyalkylene polycondensate: the hydroxyl-terminated polyether, 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl] Ethyl]disiloxane and potassium hydroxide were added to acetone, stirred and reacted at 95°C for 6.5 hours, then cooled to room temperature, filtered to remove insoluble matter, and then rotary evaporated to remove the solvent to obtain hydroxyl-terminated polyether / 1, 1,3,3-Tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disiloxane polycondensate; the hydroxyl-terminated poly ether, 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxybicyclo[4.1.0]hept-3-yl]ethyl]disiloxane, potassium hydroxide , The ratio of the amount of substance of acetone is 1:1:0.25:7;

[0037] Step S2, 5-(triethoxysilyl)-2-norbornen...

Embodiment 3

[0042] A kind of processing technique of MS sealant, is characterized in that, comprises the steps:

[0043] Step S1, hydroxyl-terminated polyether / 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disil Preparation of oxyalkylene polycondensate: the hydroxyl-terminated polyether, 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl] Ethyl]disiloxane and sodium carbonate were added to acetonitrile, stirred and reacted at 100°C for 7 hours, cooled to room temperature, filtered to remove insoluble matter, and then rotary evaporated to remove the solvent to obtain hydroxyl-terminated polyether / 1,1 ,3,3-Tetramethyl-1,3-bis-[2-[7-oxidized bicyclo[4.1.0]hept-3-yl]ethyl]disiloxane polycondensate; the hydroxyl-terminated polyether , 1,1,3,3-tetramethyl-1,3-bis-[2-[7-oxybicyclo[4.1.0]hept-3-yl]ethyl]disiloxane, sodium carbonate, acetonitrile The ratio of the amount of substance is 1:1:0.3:8;

[0044] Step S2, 5-(triethoxysilyl)-2-norbornene modif...

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Abstract

The invention discloses an MS sealant processing technology. The MS sealant processing technology includes the following steps that S1, a hydroxyl-terminated polyether / 1,1,3,3-tetramethyl-1,3-bis-[2-[7-dicycloxide[4.1.0]hepta-3-yl]ethyl] disiloxane polycondensate is prepared; S2, 5-(triethoxysilyl)-2-norbornene modified filler is prepared; S3, a polyethylene glycol monoallyl ether / methyl vinyl bis(butanone oxime) silane / 4-acryloyl methyp-bydroxybenzoate benzophenone / 3,4-epoxy-2-methyl-1-butene copolymer is prepared; and S4, a sealant is prepared. The invention further discloses the MS sealantprepared according to the MS sealant processing technology. The MS sealant processing technology is simple and easy to operate, and is convenient to implement, the implementation process consumes lessenergy, the cost is low, no pollution is generated, large-scale production is realized, and processing efficiency and the product qualification rate are high; and the prepared MS sealant is good in storage stability, weather resistance and mechanical property, good in yellowing resistance, adhesion, coating and stress relaxation and long in service life.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a MS sealant processing technology. Background technique [0002] Sealants are widely used in industries such as construction, automobiles, electronics, machinery, chemicals, and household life because of their excellent weather resistance, UV stability, compression resistance, shock resistance, moisture resistance, and high Low temperature, can maintain elasticity in harsh climate environment, no tearing and no cracking and so on. With the increasing usage of sealant, its disadvantages of poor transparency and easy yellowing are constantly exposed, which greatly limits the wide application of sealant. [0003] Silane-modified polyether (MS) sealant is a high-performance environmental-friendly sealant prepared with alkoxysilane-terminated polyether resin as the base material. The main chain of silane-modified polyether resin is a macromolecular ether chain structure, which ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J151/08C09J11/04
CPCC08K2003/2227C08K2201/011C08L2201/08C09J11/04C09J171/00C08L51/08C08K9/06C08K3/36C08K3/22
Inventor 丁文昌
Owner 安徽蓝色经典新材料科技有限公司
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