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Environmentally-friendly quick-drying automobile engine pad-free adhesive and preparation method thereof

An automobile engine and environment-friendly technology, applied in the field of environment-friendly quick-drying automobile engine gasket-free adhesive and its preparation, can solve the problems of poor stability, poor transparency, easy cracking, etc., and achieve the effect of no VOC release

Active Publication Date: 2020-02-21
广州信粤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

[0008] The applicant Cai Peiyuan proposed an invention patent application CN2004100139487 in 2004, disclosing a preparation method of vinyl tris (methyl isobutyl ketoxime) silane, which is mainly used to solve the corrosiveness of traditional silicone rubber crosslinking agents , poor stability, poor transparency, easy to crack and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The formula table of this embodiment is as follows:

[0051] Hydroxy-terminated polydimethylsiloxane (80000cp, 25℃) 70%;

[0052] Methyl tris(methyl isobutyl ketoxime) silane 2%;

[0053] Vinyl tris (methyl isobutyl ketoxime) silane 3%;

[0054] Vinyltriethoxysilane 2%;

[0055] Ethyl orthosilicate 0.5%;

[0056] Phenyl MQ silicone resin 3%

[0057] Silica 18.9%;

[0058] Dibutyltin dilauryl 0.1%;

[0059] Corning filler dispersing aid Z-6173 0.5%.

[0060] The preparation process is as follows:

[0061] Step 1: Dehydrate each raw material to a moisture content of less than 0.3%;

[0062] Step 2: Add hydroxy-terminated polydimethylsiloxane, ethyl orthosilicate, phenyl MQ silicone resin, silicon dioxide, and dispersant into the planetary barrel, stir and disperse evenly under vacuum at room temperature;

[0063] Step 3: Add methyl tris (methyl isobutyl ketoxime) silane, vinyl tris (methyl isobutyl ketoxime) silane, vinyl triethoxy silane, and dibutyltin dilaurate to the planet In the bar...

Embodiment 2

[0065] The preparation method is the same as that of Example 1, but the formula is different. Specifically, the formula table of this example is as follows:

[0066] Hydroxy-terminated polydimethylsiloxane (80000cp, 25°C) 80%;

[0067] Methyl tris(methyl isobutyl ketoxime) silane 1%;

[0068] Vinyl tris(methyl isobutyl ketoxime) silane 5%;

[0069] Vinyltriethoxysilane 0.5%;

[0070] Ethyl orthosilicate 0.01%;

[0071] Phenyl MQ silicone resin 2%

[0072] Silica 11.42%;

[0073] Dibutyltin dilaurate 0.02%;

[0074] Corning filler dispersion aid Z-6173 0.05%.

Embodiment 3

[0076] The preparation method is the same as that of Example 1, except that the formula is different. Specifically, the formula table of this example is as follows: hydroxyl-terminated polydimethylsiloxane (60000cp, 25°C) 64%;

[0077] Methyl tris(methyl isobutyl ketoxime) silane 3%;

[0078] Vinyl tris(methyl isobutyl ketoxime) silane 1%;

[0079] Vinyltriethoxysilane 3%;

[0080] Ethyl orthosilicate 0.1%;

[0081] Phenyl MQ silicone resin 5%

[0082] Silica 23.77%;

[0083] Dibutyltin dilauryl 0.1%;

[0084] Corning filler dispersion aid Z-6173 0.03%.

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PUM

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Abstract

The invention belongs to the field of organosilicone, and discloses an environmentally-friendly quick-drying automobile engine pad-free adhesive. The environmentally-friendly quick-drying automobile engine pad-free adhesive comprises the following components in percentages by weight: 60 to 80% of hydroxyl-terminated polydimethylsiloxane, 1 to 3% of methyl tri(methylisobutyl ketoxime)silane, 1 to 5% of vinyl tri(methylisobutyl ketoxime) silane, 0 to 5% of vinyltriethoxysilane, 0.01 to 0.1% of tetraethoxysilane, 2 to 5% of phenyl MQ silicone resin, 5 to 25% of silicon dioxide, 0 to 0.1% of dilauryl dibutyltin and 0 to 0.5% of a dispersant. Through optimal combination of ketoxime silanes, the pad-free adhesive provided by the invention can reaches the purposes of quick surface drying and no VOC release. Meanwhile, the invention also discloses a preparation method for the pad-free adhesive.

Description

Technical field [0001] The invention relates to the field of organic silicon modification, in particular to an environment-friendly quick-drying automobile engine cushion-free glue and a preparation method thereof. Background technique [0002] The use of ketoxime silane as a cross-linking agent to modify silicone rubber has been a common method in this field. See the following comparative documents for details. [0003] The applicant Dongguan Zhaoshun Organosilicon Technology Co., Ltd. filed an invention patent application CN201810175826.X, which discloses a preparation method of an organosilicon polymer. The preparation method includes the following steps (1) the raw material methyl ethyl ketoxime Hydrolyze the base silane to remove the methyl ethyl ketoxime produced by the hydrolysis, and then add higher alcohols to it for condensation reaction, vacuum treatment to remove the remaining small molecules to obtain condensation products; (2) add to the condensation products obtaine...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08K13/02C08K5/5465C08K5/5415C08K5/5425C08K3/36
CPCC08K2201/014C08L83/04C08L2205/025C08K13/02C08K5/5465C08K5/5415C08K5/5425C08K3/36
Inventor 王长杰刘正辉杨丽芳
Owner 广州信粤新材料科技有限公司
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