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Silane modified polyether two-component sealing glue and preparation method thereof

A silane-modified polyether and silane-modified technology, used in the field of sealants, can solve problems such as affecting application and production operations, high colloidal tensile strength, poor storage stability, etc., to achieve accelerated deep curing speed, low packaging requirements, Long shelf life effect

Inactive Publication Date: 2020-01-31
东莞市博君来胶粘材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, silane-modified polyether sealants still have obvious disadvantages: (1) The resin is relatively single, and some resins have high tensile strength and lack of elasticity after curing; (2) Highly active resins have poor storage stability and gradually fade over time. Thickening, even gel, short storage period; (3) Poor extrusion performance, long curing time, slow viscosity elimination and other shortcomings; (4) Deep curing is slow, single-component speed 2-4mm / 24 hours, two-component Parts 6-10mm / 24 hours, if the thickness exceeds 10mm, it is prone to non-curing and other phenomena
[0004] At present, the two-component sealants on the market mainly use polysulfide, silicone, etc., due to the appeal of modified polyether, which has seriously affected its application and production operations

Method used

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  • Silane modified polyether two-component sealing glue and preparation method thereof
  • Silane modified polyether two-component sealing glue and preparation method thereof
  • Silane modified polyether two-component sealing glue and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A silane-modified polyether two-component sealant, comprising the following raw materials in parts by weight:

[0046]

[0047] Wherein, the weight ratio of component A and component B is 14:1.

[0048] In this embodiment, the preparation method of the silane-modified polyether two-component sealant has the following steps:

[0049] 1) Preparation of component A: Add part of polyether resin, plasticizer, reinforcing filler and water remover to the planetary stirring high-speed disperser in sequence at room temperature, vacuumize and stir at high speed for 1 hour, control the temperature below 60°C, and disperse Evenly, add additive A and the remaining silane-modified resin after the inspection is qualified, adjust the viscosity, and discharge to obtain component A;

[0050]2) Preparation of component B: add plasticizer, toner, and order to the planetary high-speed mixer at room temperature, and stir in vacuum for 1 hour; add additive B, catalyst, and coupling agent,...

Embodiment 2

[0053] A silane-modified polyether two-component sealant, comprising the following raw materials in parts by weight:

[0054]

[0055] Wherein, the weight ratio of component A and component B is 14:1.

[0056] In this embodiment, the preparation method of the silane-modified polyether two-component sealant has the following steps:

[0057] 1) Preparation of component A: add part of polyether resin, plasticizer, reinforcing filler and water remover to the planetary stirring high-speed disperser in sequence at room temperature, vacuumize and stir at high speed for 1.5 hours, and control the temperature below 60°C. Disperse evenly, add additive A and the remaining silane-modified resin after the inspection is qualified, adjust the viscosity, and discharge to obtain component A;

[0058] 2) Preparation of component B: Add plasticizer, toner, and other components to the planetary high-speed mixer in sequence at room temperature, and stir in vacuum for 1 hour; add additive B, ca...

Embodiment 3

[0061] A silane-modified polyether two-component sealant, comprising the following raw materials in parts by weight:

[0062]

[0063] Wherein, the weight ratio of component A and component B is 14:1.

[0064] In this embodiment, the preparation method of the silane-modified polyether two-component sealant has the following steps:

[0065] 1) Preparation of component A: Add part of polyether resin, plasticizer, reinforcing filler and water remover to the planetary stirring high-speed disperser in sequence at room temperature, vacuumize and stir at high speed for 2 hours, control the temperature below 60°C, and disperse Evenly, add additive A and the remaining silane-modified resin after the inspection is qualified, adjust the viscosity, and discharge to obtain component A;

[0066] 2) Preparation of component B: Add plasticizer, toner, and order to the planetary high-speed mixer at room temperature, and stir in vacuum for 1 hour; add additive B, catalyst, and coupling agen...

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Abstract

The invention discloses a silane modified polyether two-component sealing glue, which comprises a component A and a component B according to a weight ratio of 10-16:1, wherein the component A comprises the following raw materials by weight: 10-80 parts of a silane modified polymer, 0-40 parts of a plasticizer, 0-80 parts of a reinforcing filler, 0-20 parts of an additive A and 0-2 parts of a waterremoval agent, and the component B comprises the following raw materials by weight: 0-30 parts of toner, 0-70 parts of a plasticizer, 0-30 parts of an additive B, 0-10 parts of a catalyst and 0-20 parts of a coupling agent. The invention further discloses a preparation method of the silane modified polyether two-component sealing glue. According to the invention, the mechanical property of the product can be effectively improved; the stability of the system can be improved, the extrusion performance of the product is improved, and the deep curing speed after the two component mixing can be increased.

Description

technical field [0001] The invention relates to the technical field of sealants, in particular to a silane-modified polyether two-component sealant and a preparation method thereof. Background technique [0002] Silane-modified polyether sealant is a high-performance environmental-friendly sealant based on silane-based polyether (polyether as the main chain, both ends are capped with siloxane), which has both polyurethane sealing The advantages of glue and silicone sealant overcome the shortcomings of their respective performances and have the following advantages: (1) Environmental protection and pollution-free, no solvent is added during production, no formaldehyde, toluene, xylene and other harmful substances are released to the human body, and the VOC content is The lowest, environmental protection and green; (2) The bonding range is wider and the bonding force is stronger; the tensile strength can reach 0-8Mpa; it has better adhesion to engineering plastics such as acry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J11/04C09J11/06C09J11/08
CPCC08K2003/265C08K2201/011C09J11/04C09J11/06C09J11/08C09J171/00C08L3/02C08K3/26C08K5/098C08K5/5425
Inventor 余海旋胡利华程再乐张爱学余元波
Owner 东莞市博君来胶粘材料科技有限公司
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