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A technology of carrier resin and color paste, which is applied in the field of modification of unsaturated polyester resin, can solve the problems of poor coloring power, high price, poor flexibility of pigment paste, etc., and achieve good coloring power, low price, and improved coloring power Effect
Inactive Publication Date: 2009-05-20
蓝星安迪苏股份有限公司
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Summary
Abstract
Description
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Problems solved by technology
In the past, the carrier of pigment paste was used as hydrogenated castor oil, dibutyl phthalate and other vegetable oleic acid and ester plasticizers. The prepared pigment paste had poor flexibility, easy layering, poor tinting strength and high price.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] In the first step, 114.5Kg of diethylene glycol, 16.7Kg of ethylene glycol, 39.2Kg of maleic anhydride, and 88.8Kg of phthalic anhydride were put into the reactor, and the esterification reaction was carried out at 160°C for 170 minutes;
[0023] In the second step, the esterification reaction was carried out at 170° C. for 120 minutes;
[0024] In the third step, the esterification reaction was carried out at 200° C. for 180 minutes;
[0025] The 4th step, after esterification, measure the acid value;
[0026] The fifth step is to cool down to 115°C, filter and package, and make the finished product, and take samples for full analysis.
Embodiment 2
[0028] In the first step, 186.6Kg of diethylene glycol, 27.3Kg of ethylene glycol, 58.8Kg of maleic anhydride, and 59.2Kg of phthalic anhydride were put into the reactor, and the esterification reaction was carried out at 170°C for 140 minutes;
[0029] In the second step, the esterification reaction was carried out at 180° C. for 144 minutes;
[0030] In the third step, the esterification reaction was carried out at 190° C. for 168 minutes;
[0031] The 4th step, after esterification, measure the acid value;
[0032] The fifth step is to cool down to 115°C, filter and package, and make the finished product, and take samples for full analysis.
Embodiment 3
[0034] In the first step, 148.4Kg diethylene glycol, 21.7Kg ethylene glycol, 47Kg maleic anhydride, and 77Kg phthalic anhydride were put into the reactor, and the esterification reaction was carried out at 163°C for 166 minutes;
[0035] In the second step, the esterification reaction was carried out at 172° C. for 125 minutes;
[0036] In the third step, the esterification reaction was carried out at 195° C. for 160 minutes;
[0037] The 4th step, after esterification, measure the acid value;
[0038] The fifth step is to cool down to 115°C, filter and package, and make the finished product, and take samples for full analysis.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention discloses a method for preparing a color paste carrier resin. The preparation steps are as follows: a. 110 portions to190 portions of (weight percentage) diethylene glycol, 15 portions to 30 portions of (weight percentage) glycol, 35 portions to 65 portions of (weight percentage) maleic anhydride and 55 portions to 95 portions of (weight percentage) phthalic anhydride are put into a reactor and esterification is conducted at the temperature between 160 DEG C and 170 DEG C for 2 hours to 3 hours; b. esterification is conducted at the temperature between 170 DEG C and 180 DEG C for 2 hours to 3 hours; c. esterification is conducted at the temperature between 180 DEG C and 200 DEG C for 2 hours to 3 hours; d. after esterification, acid number is measured; e. the mixture is cooled until the temperature is below 120 DEG C, filtered, packaged and produced into the finished product; and sampling is conducted bulk analysis. The method applies multiple dihydric alcohol and saturated and unsaturated dicarboxylic anhydride which are conducted high temperature esterification to prepare carriers, the color paste prepared is well compatible with unsaturated polyester resin and epoxy resin, has certain flexibility and good coloring power and is not easy to be layered and the price is low.
Description
technical field [0001] The invention relates to a preparation method of color paste carrier resin, which belongs to the technical field of modification of unsaturated polyester resin. Background technique [0002] Unsaturated polyester resin color paste (also known as pigment paste) is widely used in the coloring of FRP products and molding compounds such as buttons, bathtubs, building materials, sports equipment and electrical insulation materials. With the continuous expansion of the application field of composite materials, especially the rapid development of artificial marble, handicrafts, sports equipment, electrical insulation materials and other industries, the domestic demand for unsaturated polyester resin and color paste has increased significantly, so as unsaturated There is a large demand market for special resins for polyester resin pigment paste carriers. In the past, the pigment paste carrier was used as hydrogenated castor oil, dibutyl phthalate and other ve...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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