A kind of vinyl phenyl silicone resin containing epoxy group in side chain and preparation method thereof
A vinyl phenyl silicon and epoxy group technology, applied in the direction of adhesives, etc., can solve the problems of poor adhesion and poor mechanical properties, and achieve the effects of high transparency, convenient operation and good mechanical strength
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Embodiment 1
[0032] A kind of preparation method of the vinyl phenyl silicone resin that side chain contains epoxy group, specifically comprises the steps:
[0033] (1) Preparation of cyclotetrasiloxane containing epoxy cyclohexane group
[0034] Under a nitrogen atmosphere, 100 parts by weight of 1,3,5,7-tetramethylcyclotetrasiloxane and 206 parts by weight of 4-vinyl epoxycyclohexane were added in proportion to the In a 500ml four-necked flask with a funnel and a thermometer, add 100 parts by weight of toluene, 0.001 parts by weight of chloroplatinic acid-isopropanol solution, and simultaneously add 0.001 parts by weight of 4-methoxyphenol; then heat up to 80°C and react for 2 hours. The reaction mixture was distilled under reduced pressure at -0.096MPa at 150°C to remove the solvent and residual low boilers to obtain a liquid with a viscosity of 3000mPa.s, namely cyclotetrasiloxane containing epoxycyclohexane groups.
[0035] The cyclotetrasiloxane containing epoxycyclohexane group of ...
Embodiment 2
[0047] A kind of preparation method of the vinyl phenyl silicone resin that side chain contains epoxy group, specifically comprises the steps:
[0048] (1) Preparation of cyclotetrasiloxane containing epoxy cyclohexane group
[0049] Under a nitrogen atmosphere, 100 parts by weight of 1,3,5,7-tetramethylcyclotetrasiloxane and 208 parts by weight of 4-vinyl epoxycyclohexane were added in proportion to the In a 500ml four-necked flask with a funnel and a thermometer, add 100 parts by weight of cyclohexane, 0.002 parts by weight of chloroplatinic acid, and 0.003 parts by weight of hydroquinone; then heat up to 85°C and react for 5 hours. Under reduced pressure at -0.096MPa, the solvent and residual low boilers were removed to obtain a light yellow liquid with a viscosity of 3600mPa.s, namely cyclotetrasiloxane containing epoxycyclohexane groups.
[0050] According to the national standard GB / T 1677-2008, the epoxy value of the plasticizer is determined to be 0.54; it is close to...
Embodiment 3
[0060] A kind of preparation method of the vinyl phenyl silicone resin that side chain contains epoxy group, specifically comprises the steps:
[0061] (1) Preparation of cyclotetrasiloxane containing epoxy cyclohexane group
[0062] Under a nitrogen atmosphere, 100 parts by weight of 1,3,5,7-tetramethylcyclotetrasiloxane and 210 parts by weight of 4-vinyl epoxycyclohexane were added in proportion to the In a 500ml four-necked flask with a funnel and a thermometer, add 100 parts by weight of cyclohexane, 0.003 parts by weight of chloroplatinic acid, and 0.003 parts by weight of hydroquinone; then heat up to 90°C and react for 10 hours. Under reduced pressure at -0.096MPa, the solvent and residual low boilers were removed to obtain a light yellow liquid with a viscosity of 4300mPa.s, namely cyclotetrasiloxane containing epoxycyclohexane groups.
[0063] According to the national standard GB / T 1677-2008, the epoxy value of the plasticizer is determined to be 0.54; it is close t...
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