Monocomponent flame-retardant silane modified polyether sealant and preparation method thereof

A silane-modified polyether, flame-retardant technology, applied in the direction of polyether adhesives, adhesives, adhesive types, etc., can solve the problems of slow curing speed at low temperature, easy aging and hardening, erosion, etc. Good effect, high weather resistance, fast curing effect

Inactive Publication Date: 2012-09-12
JIANGSU TIANCHEN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polysulfide sealant, organic silicone sealant and polyurethane sealant, which are widely used in the construction industry, have some disadvantages. For example, polysulfide sealant has slow curing speed at low temperature, easy aging and hardening, lack of durability, and has Strong irritating odor; polyurethane sealant has high strength, tear resistance, puncture resistance, oil resistance and medium corrosion resistance, but its terminal NCO group is very sensitive to moisture, which easily affects the storage stability of the system; silicone sealant is easy to pollute Adjacent parts, and poor surface finish, etc.

Method used

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  • Monocomponent flame-retardant silane modified polyether sealant and preparation method thereof
  • Monocomponent flame-retardant silane modified polyether sealant and preparation method thereof
  • Monocomponent flame-retardant silane modified polyether sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The present invention will be further described below using specific examples. In the implementation, all are in parts by weight.

[0033]

[0034] Wherein, in terms of platinum content, a platinum complex compound accounting for 20 parts per million of the total weight of raw materials is also added, and the platinum complex compound is obtained by reacting divinyltetramethoxydisiloxane and chloroplatinic acid. (Karstedtd 322 produced by Heraeus (Heraeus) used in the present invention)

[0035] During preparation, add MS-polymer, methyl silicone oil, ultraviolet absorber and stabilizer sequentially to the vacuum kneader at room temperature, and blend for 10 to 15 minutes under vacuum protection; then add nano-calcium carbonate in batches, gas phase method Mix white carbon black, aluminum hydroxide, basic zinc carbonate, polyamide thixotropic agent and titanium dioxide for 10-15 minutes under vacuum protection; raise the temperature to 150°C, vacuum blend for 1-2hr;...

Embodiment 2

[0046] The present invention will be further described below using specific examples. In the implementation, all are in parts by weight.

[0047]

[0048] Wherein, in terms of platinum content, a platinum complex compound accounting for 20 parts per million of the total weight of raw materials is also added, and the platinum complex compound is obtained by reacting divinyltetramethoxydisiloxane and chloroplatinic acid. (Heraeus Karstedtd 322)

[0049] The preparation method is the same as in Example 1.

Embodiment 3

[0051] The present invention will be further described below using specific examples. In the implementation, all are in parts by weight.

[0052]

[0053] Wherein, in terms of platinum content, a platinum complex compound accounting for 20 parts per million of the total weight of raw materials is also added, and the platinum complex compound is obtained by reacting divinyltetramethoxydisiloxane and chloroplatinic acid. (Heraeus Karstedtd 322)

[0054] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a monocomponent flame-retardant silane modified polyether sealant and a preparation method thereof. The sealant of the invention comprises an MS-polymer resin, a plasticizer, a reinforcement filler, a thixotropic agent, an ultraviolet ray absorbing agent, an ultraviolet ray stabilizing agent, a flame retardant, a crosslinking agent, a hydroxy group scavenger, a coupling agent, an organic tin catalyst and the like. The obtained monocomponent flame-retardant silane modified polyether sealant has the advantages of flame retardation, fast solidification, strong strength, and high weather resistance.

Description

technical field [0001] The invention is a one-component flame-retardant silane-modified polyether sealant. The sealant is mainly used in the fields of electrical and electronic, automobile, machinery, aerospace, building and housing, etc. Background technique [0002] With the development of large-scale, high-rise buildings, underground, diversification and longevity of modern buildings, higher requirements are put forward for the performance and quality of building sealants, especially in the construction industry. The higher the flame retardant performance of the building sealants used, the higher the requirements. Polysulfide sealant, organic silicone sealant and polyurethane sealant, which are widely used in the construction industry, have some disadvantages. For example, polysulfide sealant has slow curing speed at low temperature, easy aging and hardening, lack of durability, and has Strong irritating odor; polyurethane sealant has high strength, tear resistance, pun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/02C09J11/04C09J11/06
Inventor 阚新宇徐古月徐文俊王栋葆
Owner JIANGSU TIANCHEN NEW MATERIALS
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