Two-component colorful flexible polysulfide ammonia ester sealant and preparation method thereof

A polythiourethane and sealant technology, which is applied in chemical instruments and methods, other chemical processes, adhesive additives, etc., can solve the problem of single color and other problems, and achieve the effect of not being easy to yellow, ensuring color stability, and color stability

Inactive Publication Date: 2015-12-02
HENAN YONGLI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the defect of single color existing in the existing flexible sealant, the present invention provides a two-component colorful flexible polythioammonium with stable storage, excellent physical and mechanical properties and easy deployment into various colors Ester sealant and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The rose red flexible polythiourethane sealant of the present invention is composed of component A and component B, expressed in parts by weight, and the raw materials of component A and component B are composed as follows:

[0045] Component A: 15 parts of PSU type liquid rubber, 30 parts of dibutyl phthalate, 40 parts of heavy calcium carbonate, 10 parts of nano calcium carbonate, 2 parts of octyl phenolic tackifying resin, 1.4 parts of oleic acid, antioxidant Agent AT-2150.8 parts and ultraviolet absorber UV-3280.8 parts;

[0046] Component B: 15 parts of calcium peroxide, 3 parts of diethylenetriamine, 10 parts of dibutyl phthalate, 5224 parts of chlorinated paraffin, 8 parts of 3193 strong rose red, 15 parts of clay powder and heavy carbonic acid Calcium 25 parts;

[0047] The mass ratio between A component and B component is 10:1.

[0048] The PSU type liquid rubber used in this embodiment is prepared by the above-mentioned method using hexamethylene diisocyanat...

Embodiment 2

[0055] The bright red flexible polythiourethane sealant of the present invention is composed of A component and B component, expressed in parts by weight, and the raw material composition of A component and B component is as follows:

[0056] Component A: 20 parts of PSU type liquid rubber, 30 parts of dibutyl phthalate, 30 parts of light calcium carbonate, 15 parts of nanometer calcium carbonate, 2 parts of octyl phenolic tackifying resin, 1 part of stearic acid, Oxygen agent AT-2151 parts and ultraviolet absorber UV-3271 parts;

[0057] Component B: 20 ​​parts of calcium peroxide, 2 parts of triethylenetetramine, 1 part of zinc dibutyldithiocarbamate, 10 parts of dibutyl phthalate, 5222 parts of chlorinated paraffin, 3118 sunfast scarlet 10 parts of BBN-P, 10 parts of lithopone and 25 parts of heavy calcium carbonate;

[0058] The mass ratio between A component and B component is 8:1.

[0059] The PSU type liquid rubber used in this embodiment is prepared by the above-ment...

Embodiment 3

[0063] The deep red flexible polythiourethane sealant of the present invention is composed of A component and B component, expressed in parts by weight, and the raw material composition of A component and B component is as follows:

[0064] Component A: 35 parts of PSU type liquid rubber, 15 parts of dioctyl sebacate, 35 parts of light calcium carbonate, 10 parts of mica powder, 2 parts of liquid epoxy resin, 2640.5 parts of antioxidant, UV absorber TinuvinB750. 5 parts and 2 parts of stearic acid;

[0065]Component B: 25 parts of calcium peroxide, 3 parts of sodium dimethyl dithiocarbamate, 16 parts of butyl benzyl phthalate, 5222 parts of chlorinated paraffin, 10 parts of iron oxide red, 6 parts of lithopone, weight 18 parts of calcium carbonate;

[0066] The mass ratio between A component and B component is 12:1.

[0067] The PSU type liquid rubber used in this embodiment is prepared by the above-mentioned method using methylcyclohexyl diisocyanate HTDI, polyether polyol,...

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Abstract

The invention discloses a two-component colorful flexible polysulfide ammonia ester sealant and a preparation method thereof. The sealant consists of a component A and a component B; expressed by weight part, the component A is prepared from 15 to 60 parts of PSU type liquid rubber, 10 to 30 parts of a plasticizer, 10 to 60 parts of a filler, 0.1 to 5 parts of a tackifier, 0.1 to 5 parts of an antiager and 0.1 to 5 parts of a premature vulcanization retarder; the component B is prepared from 10 to 40 parts of a vulcanizing agent, 0.1 to 5 parts of a vulcanization accelerator, 10 to 50 parts of a plasticizer, 1 to 20 parts of a colorant and 10 to 50 parts of a filler; the mass ratio of the component A to the component B is 5 to (15 to 1). The component A and the component B are respectively ground to be pasty and then are mixed uniformly, thus obtaining a product. The product is stable in storage, excellent in physical and mechanical properties, and easy to blend into multiple colors, and the defect of color singleness of an existing flexible sealant is overcome.

Description

technical field [0001] The invention relates to an engineering sealing material, in particular to a two-component colorful flexible polythiourethane sealant and a preparation method thereof. Background technique [0002] Flexible sealant is an engineering sealing material that acts as an interface bond and seal between two components or two substrates, bears the expansion and contraction stress of joint deformation and displacement, and plays a role of long-term sealing protection. It is widely used in roads and bridges , subways, airports, water conservancy projects, housing construction, aerospace and other fields. At present, there are several types of flexible sealants widely used in the market: silicone, polyurethane, polysulfide, polythiourethane, etc. These flexible sealants have their own excellent physical and mechanical properties, and they all play the expected sealing function in different application fields. [0003] With the improvement of people's material a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J11/04C09J11/06C09J11/08C09K3/10C08G18/66C08G18/48C08G18/38C08G18/10
Inventor 刘志聪杨宏生宋秋玲许书珍袁永浩万红云薛丽萍
Owner HENAN YONGLI CHEM
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