Mildew-proof silane-modified polyether sealant and preparation method therefor

A silane-modified polyether and sealant technology, which is applied in the direction of polyether adhesives, adhesives, adhesive types, etc., can solve the problems of environmental protection, adverse human health, and odor, and achieve rapid curing and wide adhesion The effect of adhesion and good elasticity

Inactive Publication Date: 2015-12-02
深圳市隆邦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

Although this silane-modified polyether sealant has certain anti-yellowing and anti-aging properties, but because its components contain methyl tributylketoxime silane, vinyl tributylketoxime silane, dimethyl di Butanone oxime silane, divinyl dibutylketoxime silane or tetrabutylketoxime silane and one or more oxime silanes, so this sealant will release ketone oxime volatile during curing That is, this sealant will produce peculiar smell during use, which is not environmentally friendly and harmful to human health

Method used

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  • Mildew-proof silane-modified polyether sealant and preparation method therefor
  • Mildew-proof silane-modified polyether sealant and preparation method therefor
  • Mildew-proof silane-modified polyether sealant and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 It shows the preparation method of the first embodiment of the present invention anti-mildew silane modified polyether sealant, including:

[0029] Step S1, weighing.

[0030] Weigh 30Kg of silane-modified polyether resin, 20Kg of diisodecyl phthalate (DIDP), 30Kg of nano-calcium carbonate, 14.3Kg of active calcium carbonate, 3Kg of titanium dioxide, 0.1Kg of sodium polyamide, and 0.1Kg of pyridyl sulfide Ketone zinc (ZincOmadine) 0.1Kg, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole (Tinuvin326) 0.1Kg, bis(2,2,6 , 6-tetramethyl-4-piperidinyl) sebacate (Tinuvin770) 0.1Kg, vinyltrimethoxysilane (KH171) 1Kg, aminoethylaminopropyltrimethoxysilane (KH792) 1Kg, two Dibutyltin laurate 0.3Kg.

[0031] Step S2, mixing ingredients.

[0032] The weighed silane modified polyether resin, diisodecyl phthalate, nanometer calcium carbonate, activated calcium carbonate, titanium dioxide, sodium polyamide, zinc pyrithione, 2-(2-hydroxy-3- Put tert-butyl-5-...

Embodiment 2

[0042] figure 2 Shows the preparation method of anti-mold silane modified polyether sealant of the second embodiment of the present invention, including:

[0043] Step S1, weighing.

[0044] Weigh 25.3Kg of silane-modified polyether resin, 30Kg of diisodecyl phthalate (DIDP), 30Kg of nano-calcium carbonate, 10Kg of active calcium carbonate, 3Kg of titanium dioxide, 0.1Kg of sodium polyamide, and 0.1Kg of pyridyl sulfide Ketone zinc (ZincOmadine) 0.1Kg, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole (Tinuvin326) 0.1Kg, bis(2,2,6 , 6-tetramethyl-4-piperidinyl) sebacate (Tinuvin770) 0.1Kg, vinyltrimethoxysilane (KH171) 0.5Kg, aminoethylaminopropyltrimethoxysilane (KH792) 0.5Kg , Dibutyltin dilaurate 0.3Kg.

[0045] Step S2, mixing ingredients.

[0046] The weighed silane modified polyether resin, diisodecyl phthalate, nanometer calcium carbonate, activated calcium carbonate, titanium dioxide, sodium polyamide, zinc pyrithione, 2-(2-hydroxy-3- Put tert-butyl...

Embodiment 3

[0054] In this example, the preparation method of the anti-mold silane-modified polyether sealant is roughly the same as that of the above-mentioned Example 2, and the specific steps are as follows:

[0055] Step S1, weighing.

[0056] Weigh 30Kg of silane-modified polyether resin, 20Kg of DIDP, 20Kg of nano-calcium carbonate, 23.5Kg of activated calcium carbonate, 3Kg of titanium dioxide, 0.3Kg of sodium polyamide, 0.3Kg of ZincOmadine, 0.3Kg of Tinuvin326, and 0.3Kg of Tinuvin770 0.3Kg for KH171, 1Kg for KH792, 0.3Kg for dibutyltin dilaurate.

[0057] Step S2, mixing ingredients.

[0058] Put the weighed silane-modified polyether resin, DIDP, nano-calcium carbonate, activated calcium carbonate, titanium dioxide, sodium polyamide, ZincOmadine, Tinuvin326, Tinuvin770 into the mixer, and stir at high speed to heat up the material.

[0059] Step S3, dehydration.

[0060] After the temperature of the material rose to 110° C., vacuum dehydration was started for 2 hours to reduc...

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Abstract

The present invention discloses mildew-proof silane-modified polyether sealant. The sealant is prepared by mixing the following raw materials in proportion by weight: 20-30% of silane-modified polyether prepolymer, 20-30% of a plasticizer, 40-50% of reinforcing incremental powder, 3-5% of a brightener, 0.1-0.5% of a thixotropic agent, 0.1-0.3% of a mildew-proof agent, 0.1-0.3% of an ultraviolet absorbent, 0.1-0.3% of a light stabilizer, 0.5-1% of a dehydrating agent, 0.5-1% of a silane coupling agent and 0.1-0.3% of a catalyst. The mildew-proof silane-modified polyether sealant provided by the present invention adopts single-component sealed package, is cured after contacting moisture under the action of a catalyst and has wide adhesion to various materials. The sealant is simple in operation, environmentally friendly, cured quickly, mildew-proof in a moist environment and is an ideal adhesive sealing material in kitchen-bath and household aspects.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a sealant and a preparation method thereof, in particular to a mildew-proof silane-modified polyether sealant and a preparation method thereof. Background technique [0002] Neutral or acidic silicone sealants are usually used in the home decoration industry. This sealant is usually used for bonding, sealing, seams, and waterproofing. The indoor air is generally very humid. Even if you use mildew-resistant silicone sealant, the silicone sealant will become moldy under the action of long-term humid water vapor, causing a decrease in strength and adhesion, which will affect the appearance of the kitchen and bathroom and even cause damage. safe question. [0003] For example, the Chinese invention patent with the patent number of 200910066244.9 discloses a neutral transparent silicone structural sealant, which is composed of the following components by weight: hydroxyl-terminated pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/00C09J11/04C09J11/06
Inventor 陈金明
Owner 深圳市隆邦新材料科技有限公司
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