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Fireproof silane modified polyether adhesive with low modulus and high displacement capacity and preparation method thereof

A silane-modified polyether, low-modulus technology, applied in the field of materials, can solve the problems of increased modulus, high modulus of polyether rubber, poor operation performance, etc., to improve elastic recovery rate and elongation at break, comprehensive Excellent performance and the effect of improving displacement capacity

Pending Publication Date: 2021-04-30
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, adding flame retardants to fire-resistant silane-modified polyether adhesives will lead to technical problems such as increased modulus and low displacement capacity
For example, in the research on fire-resistant silane-modified polyether glue, patent CN201711450622.4 mentions a kind of flame-retardant modified silane polyether glue, the flame retardant used is phosphorus-nitrogen flame retardant, and the prepared polyether glue The modulus is high and the operability is poor; patent CN201910125894.X mentions a flame-retardant silane-modified sealant and its preparation method, the flame retardant used is tricresyl phosphate, and the obtained flame-retardant polyether glue has Low elongation, short surface dry time and other deficiencies; patent CN201210100989.4 introduces a one-component flame-retardant silane-modified polyether adhesive and its preparation method. The flame retardant used is flame-retardant filler and platinum complex Compound compound, the flame retardant filler is flame retardant graphite, magnesium hydroxide, aluminum hydroxide, etc., the platinum complex is formed by the reaction of chloroplatinic acid and divinyltetramethyldisiloxane, and the obtained flame retardant poly Ether glue has poor displacement ability, high modulus, and difficult operation

Method used

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  • Fireproof silane modified polyether adhesive with low modulus and high displacement capacity and preparation method thereof
  • Fireproof silane modified polyether adhesive with low modulus and high displacement capacity and preparation method thereof
  • Fireproof silane modified polyether adhesive with low modulus and high displacement capacity and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0063] The silane-modified polyether glue of the present embodiment is prepared by the following raw materials and steps:

[0064] Add 100 parts of trimethoxy-terminated MS-polymer prepolymer, 300 parts of reinforcing filler, 5 parts of thixotropic agent, 12 parts of flame retardant, 10 parts of mold-reducing agent, and 150 parts of plasticizer into the reaction kettle , at a temperature of 100° C., a vacuum of -0.09 MPa, a rotational speed of 300 rpm, and dehydration and blending for 210 min. After cooling down to room temperature, start compounding glue, add 10 parts of hydroxyl scavenger, 6 parts of coupling agent, 0.2 parts of organotin catalyst, and carry out chemical reaction for 60 minutes at a vacuum degree of -0.09MPa and a rotation speed of 300rpm. The product performance indicators are shown in the table 1.

Embodiment 2

[0066] The silane-modified polyether glue of the present embodiment is prepared by the following raw materials and steps:

[0067] 100 parts of trimethoxy-terminated MS-polymer prepolymer, 300 parts of reinforcing filler, 5 parts of thixotropic agent, 6 parts of flame retardant, 4 parts of mold-reducing agent, and 150 parts of plasticizer are added to the reaction kettle, At a temperature of 100° C., a vacuum of -0.09 MPa, and a rotation speed of 300 rpm, dehydration and blending were carried out for 210 minutes. After cooling down to room temperature, start compounding glue, add 10 parts of hydroxyl scavenger, 6 parts of coupling agent, 0.2 parts of organotin catalyst, and carry out chemical reaction for 60 minutes at a vacuum degree of -0.09MPa and a rotation speed of 300rpm. The product performance indicators are shown in the table 1.

Embodiment 3

[0069] The silane-modified polyether glue of the present embodiment is prepared by the following raw materials and steps:

[0070] 100 parts of trimethoxy end-capped MS-polymer prepolymer, 300 parts of reinforcing filler, 5 parts of thixotropic agent, 10 parts of flame retardant, 5 parts of mold-reducing agent, 150 parts of plasticizer, added to the reactor, At a temperature of 100° C., a vacuum of -0.09 MPa, and a rotation speed of 300 rpm, dehydration and blending were carried out for 210 minutes. After cooling down to room temperature, start compounding glue, add 10 parts of hydroxyl scavenger, 6 parts of coupling agent, 0.2 parts of organotin catalyst, and carry out chemical reaction for 60 minutes at a vacuum degree of -0.09MPa and a rotation speed of 300rpm. The product performance indicators are shown in the table 1.

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PUM

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Abstract

The invention relates to a fireproof silane modified polyether adhesive with low modulus and high displacement capacity and a preparation method thereof. The fireproof silane modified polyether adhesive with low modulus and high displacement capacity is prepared from the following raw materials in parts by weight: 100 parts of an MS-polymer prepolymer; 200-500 parts of a reinforcing filler; 2-10 parts of a thixotropic agent; 5-20 parts of a flame retardant; 2-20 parts of a modulus reducing agent; 50-300 parts of a plasticizer; 5-20 parts of a hydroxyl scavenger; 2-10 parts of a coupling agent; and 0.05-0.5 part of an organic tin catalyst, wherein the MS-polymer prepolymer is at least one of trimethoxy-terminated polyether and triethoxy-terminated polyether, and the MS-polymer prepolymer is at least one of trimethoxy-terminated polyether and triethoxy-terminated polyether; the flame retardant is a mixture of a nitrogen-based flame retardant and a phosphorus-based flame retardant; and the mold reducing agent is monoalkoxy-terminated polyether. The fireproof silane modified polyether adhesive disclosed by the invention has low modulus and high displacement capacity.

Description

technical field [0001] The invention relates to the field of materials, in particular to a fireproof silane-modified polyether adhesive with low modulus and high displacement capacity and a preparation method thereof. Background technique [0002] Silane-modified polyether adhesive is a new generation of building sealant developed after polysulfide adhesive, silicone adhesive and polyurethane adhesive. Silane-modified polyether adhesive not only has good construction, adhesion, durability and weather resistance, but also has non-polluting and paintable properties. It has a wide range of applications in architectural decoration, mainly in construction engineering and decoration Bonding, caulking, seaming, sealing and waterproofing, reinforcement and other fields. And because it does not contain formaldehyde, does not contain isocyanate, and has no solvents, etc., the silane-modified polyether adhesive has outstanding environmental protection characteristics for the environme...

Claims

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Application Information

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IPC IPC(8): C09J171/00C09J11/08C09J11/04C09J11/06C08G65/336C08G65/48
CPCC09J171/00C09J11/08C09J11/04C09J11/06C08G65/336C08G65/48C08L2201/02C08L2205/025
Inventor 薛有泉袁胤纶蒋金博杨传伟
Owner GUANGZHOU BAIYUN CHEM IND