Preparation method of triethylene glycol hydrogenated rosinate
A technology of rosin triethylene glycol ester and hydrogenated rosin, which is applied in the chemical field, can solve the problems of dark color, difficult to meet the use requirements of light-colored hydrogenated rosin triethylene glycol ester, long reaction time, etc., and achieve low acid value and light color of the product , Improve the effect of product color
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[0020] Example 1:
[0021] Put 1000g of refined hydrogenated rosin into a four-necked flask with a stirring blade, pour in nitrogen to replace and heat to melt, and heat to 170-180℃. After the material is completely melted, start stirring, add 300g of triethylene glycol and 4,4'- 1.5g of thiobis(6-tert-butyl-3-methylphenol), 1.0g of nanometer zinc oxide, heated to 272-278℃ at a rate of 10℃ per hour, and reacted at 272-278℃ for 6 hours After vacuuming, vacuuming for 5 hours, cooling and discharging to obtain hydrogenated rosin triethylene glycol ester.
[0022] The appearance of the hydrogenated rosin triethylene glycol ester product is a transparent liquid, the acid value is 9.3mg / g, the color (iron-cobalt color number) is 6+, and the viscosity is 99.8mpa.s at 100°C.
Example Embodiment
[0023] Example 2:
[0024] Put 850g of refined hydrogenated rosin and 150g of refined rosin into a four-necked flask with a stirring paddle, pour into nitrogen to replace and heat to melt, heat up to 170-180°C, start stirring after the materials are completely melted, add 300g of triethylene glycol, alkane 1.5 g of phenol disulfide oligomer and 1.0 g of nano zinc oxide, heated to 272-278°C at a rate of 10°C per hour, and kept at 272-278°C for 6 hours, then vacuumed, and vacuumed for 3 hours , Cooling and discharging to obtain hydrogenated rosin triethylene glycol ester.
[0025] The appearance of the hydrogenated rosin triethylene glycol ester product is a transparent liquid, the acid value is 5.8mg / g, the color (iron-cobalt color number) is 6 and the viscosity is 84.3mpa.s at 100°C.
Example Embodiment
[0026] Example 3:
[0027] Put 850g of refined hydrogenated rosin and 150g of refined rosin into a four-necked flask with a stirring paddle, pour into nitrogen to replace and heat to melt, heat up to 170-180°C, start stirring after the materials are completely melted, add 300g of triethylene glycol, 4 ,4'-thiobis(6-tert-butyl-3-methylphenol) 1.5g and nano zinc oxide 0.5g, heated to 272-278℃ at a rate of 10℃ per hour, and kept at 272-278℃ After 5 hours of reaction, vacuum was applied, and after 3 hours of vacuum, the material was cooled and discharged to obtain hydrogenated rosin triethylene glycol ester.
[0028] The appearance of the hydrogenated rosin triethylene glycol ester product is a transparent liquid, the acid value is 6.9g / g, the color (iron-cobalt color number) is 6+, and the viscosity at 100°C is 89.4mpa.s.
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