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A kind of EPDM rubber sealing strip and preparation method thereof
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A technology of EPDM rubber and sealing strips, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of low peel strength, limited application, and vibration resistance, and achieve peel strength High, improve the bond strength, improve the effect of brittleness
Active Publication Date: 2020-02-11
安徽富煌门窗幕墙有限公司
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Problems solved by technology
It is easy to modify itself, and can also modify other adhesives. However, it is brittle, has low peel strength, is not resistant to impact, and is not resistant to vibration, which limits its application in certain fields.
Method used
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Embodiment 1
[0017] A kind of EPDM rubber sealing strip, it is made up of the raw material of following parts by weight:
[0020] A preparation method of EPDM sealing strip, comprising the following steps:
[0021] (1) Take the anti-aging agent rd, add it to 16 times its weight in absolute ethanol, stir evenly, add 10% of the above-mentioned phenol weight, ultrasonic for 3 minutes, add polymethylhydrogensiloxane, and raise the temperature to 50°C , kept stirring for 1 hour, distilled off ethanol to obtain alkylphenol;
[0022] (2) Take 1,6-hexanediol diacrylate, add it to chloroform that is 2-4 times its weight, stir evenly, mix with the above-mentioned alkylphenol, stir evenly, add platinum catalyst, and raise the ...
Embodiment 2
[0027] A kind of EPDM rubber sealing strip, it is made up of the raw material of following parts by weight:
[0030] A preparation method of EPDM sealing strip, comprising the following steps:
[0031] (1) Take the anti-aging agent rd, add it to 20 times its weight in absolute ethanol, stir evenly, add 15% of the above-mentioned phenol weight, ultrasonic for 5 minutes, add polymethylhydrogensiloxane, and raise the temperature to 55°C , kept stirring for 2 hours, distilled off ethanol to obtain alkylphenol;
[0032] (2) Take 1,6-hexanediol diacrylate, add it to chloroform which is 4 times its weight, stir evenly, mix with the above-mentioned alkylphenol, stir evenly, add platinum catalyst, raise the te...
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Abstract
The invention discloses an ethylene-propylene-diene monomer rubber sealing strip. The ethylene-propylene-diene monomer rubber sealing strip is prepared from the following raw materials in parts by weight: 1 to 2 parts of an anti-aging agent rd, 10 to 13 parts of 1,6-hexanediol diacrylate, 0.01 to 0.02 part of platinum catalyst, 15 to 20 parts of polymethylhydrosiloxane, 80 to 90 parts of ethylene-propylene-diene monomer rubber powder, 40 to 50 parts of phenol, 65 to 70 parts of 37% formaldehyde, 0.4 to 0.5 part of catalyst, 2 to 3 parts of calcium stearate, and 5 to 7 parts of calcium oxide. The ethylene-propylene-diene monomer rubber sealing strip is characterized in that the rubber powder is subjected to anti-aging treatment, then is mixed with the tackified phenol, and is reacted with the formaldehyde to prepare the phenolic resin compounded with the rubber powder. The ethylene-propylene-diene monomer rubber sealing strip has the advantages that the binding strength is good, the tensile strength is high, and the comprehensive property is excellent.
Description
technical field [0001] The invention belongs to the field of sealing strips, and in particular relates to a EPDM sealing strip and a preparation method thereof. Background technique [0002] Phenolic resin has high polarity, good adhesion to metals and most non-metals, and high bonding strength. Due to the presence of a large number of benzene rings in phenolic resin, it can also be cross-linked into a body-shaped structure with high rigidity, so it has high heat resistance, creep resistance, ablation resistance, and good dimensional stability. Water resistance, oil resistance, wear resistance, chemical medium resistance, mold resistance, aging resistance, etc., excellent electrical insulation performance. It is easy to modify itself, and can also modify other adhesives. However, it is brittle, has low peel strength, is not resistant to impact, and is not resistant to vibration, which limits its application in certain fields. Contents of the invention [0003] The object...
Claims
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Application Information
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