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A silicone and sealant technology, applied in adhesives, adhesive additives, non-polymer adhesive additives, etc.
Inactive Publication Date: 2018-03-06
高成龙
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Abstract
Description
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Problems solved by technology
[0005] The present invention aims to solve the problems of silicone sealants in the prior art, and provides a tough silicone sealant, which has certain shape stability and deformation resistance toughness after curing.
Method used
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Embodiment 1
[0047] A tough silicone sealant comprising the following raw materials in parts by weight:
[0048] Dihydroxypolydimethylsiloxane 20 parts
[0049] 5 parts of simethicone
[0050] 5 parts of dimethyl dibutylketoxime silane
[0051] 6 parts of methyl triacetone oximino silane
[0052] Polyethylene glycol 3 parts
[0053] Fumed silica 11 parts
[0054] Nano calcium carbonate 20 parts
[0055] Methyltriacetoxysilane 5 parts
[0056] Di-tert-butoxydiacetoxysilane 3 parts
[0057] Dioctyltin dilaurate 0.2 parts
[0058] 5 parts of polyethylene terephthalate.
Embodiment 2
[0060] A tough silicone sealant comprising the following raw materials in parts by weight:
[0061] Dihydroxypolydimethylsiloxane 50 parts
[0062] 12 parts of simethicone
[0063] 11 parts of dimethyl dibutyl ketoxime silane
[0064] 12 parts of methyl triacetone oximino silane
[0065] Polyethylene glycol 5 parts
[0066] Fumed white carbon black 15 parts
[0067] Nano calcium carbonate 30 parts
[0068] Methyltriacetoxysilane 15 parts
[0069] Di-tert-butoxydiacetoxysilane 10 parts
[0070] Dioctyltin dilaurate 1.0 parts
[0071] Polyethylene terephthalate 12 parts.
Embodiment 3
[0073] A tough silicone sealant comprising the following raw materials in parts by weight:
[0074] 35 parts of dihydroxypolydimethylsiloxane
[0075] 8.5 parts of simethicone oil
[0076] 8 parts of dimethyl dibutyl ketoximosilane
[0077] 9 parts of methyl triacetone oximino silane
[0078] Polyethylene glycol 3-5 parts
[0079] Fumed silica 13 parts
[0080] Nano calcium carbonate 25 parts
[0081] 10 parts of methyltriacetoxysilane
[0082] Di-tert-butoxydiacetoxysilane 6.5 parts
[0083] Dioctyltin dilaurate 0.6 parts
[0084] 8.5 parts of polyethylene terephthalate.
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Abstract
The invention relates to a tough organic silicon sealant, which belongs to the technical field of organic silicon sealants. Modified silicone sealants include dihydroxy polydimethylsiloxane, dimethicone, dimethyldibutanone oximosilane, methyltriacetone oximosilane, polyethylene glycol, fumed silica, nano- grade calcium carbonate, methyl triacetoxy silane, di-tert-butoxy diacetoxy silane, dioctyl tin dilaurate, polyethylene terephthalate. The silicone sealant of the present invention has certain shape stability and deformation resistance toughness after curing.
Description
technical field [0001] The invention relates to a sealant, more specifically, the invention relates to a tough silicone sealant, which belongs to the technical field of silicone sealants. Background technique [0002] In the packaging of some electronic products or other products, it is often required that the silicone sealing material not only has a certain degree of flexibility, but also has a certain degree of toughness, so as to meet the normal use of such electronic products under some special environmental conditions. This requires the sealing material to have mechanical properties of a certain modulus and high elongation after curing. At the same time, the cured product is required to have certain shape stability and deformation resistance. Therefore, this new type of silicone sealing material has become a research hotspot. [0003] The State Intellectual Property Office published an invention with the publication number CN101768420A on 2010.07.07, titled "A dealcoh...
Claims
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Application Information
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