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Oil-resistant organic silicon sealant and preparation method thereof

A silicone and sealant technology, used in adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of expensive materials, poor stability of silicone rubber, etc., and achieve widespread application and oil resistance. , the effect of improving oil resistance

Inactive Publication Date: 2021-01-12
FUJIAN CHANGDE PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Patent CN111154454A proposes a preparation method of oil-resistant silicone sealant, but the material is expensive; CN110885666A increases oil resistance by adding fillers such as kaolin, but it is easy to make the stability of silicone rubber worse

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preferred oil-resistant silicone sealant, the mass ratio is as follows:

[0040] 107 silicone rubber (20000cps) 100 parts

[0041] Calcium carbonate 100 parts

[0042] KH-550 coupling agent 2 parts

[0043] R-974 white carbon black 5 parts

[0044] 10 parts of methyl tributyl ketoximosilane

[0045] Tetrabutanoximinosilane 5 parts

[0046] Dibutyltin dilaurate 0.25 parts

[0047] Simethicone oil (10cps) 30 parts

Embodiment 2

[0049] An oil-resistant silicone sealant, the mass ratio is as follows:

[0050] 107 silicone rubber (20000cps) 100 parts

[0051] Calcium carbonate 65 parts

[0052] Silica powder 35 parts

[0053] KH-550 coupling agent 2 parts

[0054] R-974 white carbon black 5 parts

[0055] 10 parts of methyl tributyl ketoximosilane

[0056] Tetrabutanoximinosilane 5 parts

[0057] Dibutyltin dilaurate 0.25 parts

[0058] Simethicone oil (10cps) 20 parts

Embodiment 3

[0060] An oil-resistant silicone sealant, the mass ratio is as follows:

[0061] 107 silicone rubber (80000cps) 100 parts

[0062] Calcium carbonate 75 parts

[0063] Zinc oxide 25 parts

[0064] KH-550 coupling agent 2 parts

[0065] R-974 white carbon black 5 parts

[0066] 10 parts of phenyl tributylketoxime silane

[0067] Tetrabutanoximinosilane 5 parts

[0068] Dibutyltin dilaurate 0.25 parts

[0069] Simethicone oil (10cps) 10 parts

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PUM

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Abstract

The invention relates to the technical field of adhesives, and provides an oil-resistant organic silicon sealant and a preparation method thereof. The oil-resistant organic silicon sealant is preparedfrom the following components in parts by weight: 100-150 parts of alpha, omega-dihydroxypolysiloxane (107 silicone rubber), 10-20 parts of a ketoxime cross-linking agent, 1-3 parts of an amino silane coupling agent, 50-200 parts of a filler, 0.1-0.3 part of a tin catalyst, 10-50 parts of an oil-resistant additive and 2-10 parts of white carbon black. The problems that an existing oil-resistant organic silicon sealant is high in manufacturing cost, poor in high-temperature resistance and the like are solved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an oil-resistant silicone sealant and a preparation method thereof. Background technique [0002] Silicone rubber sealants are widely used in automobile, construction, petrochemical, machine manufacturing and other industries. In the automobile manufacturing industry, silicone sealants are widely used for forming sealing gaskets in place, and are often used for sealing of engines, rocker shafts, timing chain covers, oil filter covers, bearing caps, valve covers, coolant systems, etc. The requirements for sealing rings used in automobile engines are very strict, requiring high temperature resistance, oil resistance and low compression set. [0003] Silicone sealants use hydroxyl-terminated polysiloxane as the base polymer, and add other additives at the same time. Silicone sealant not only has weather resistance, heat resistance, cold resistance and adhesiveness, but also has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/08
CPCC09J183/04C09J11/08C08K2003/265C08K2201/014C08L2201/08C08L2205/025C08L83/04C08K13/04C08K7/26C08K5/5465C08K5/57C08K3/26
Inventor 王传云许荣鹏吴培煌
Owner FUJIAN CHANGDE PLASTIC IND
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