Synthetic process of alkide resin modified epoxy vinyl ester resin
A technology for synthesizing epoxy vinyl esters and resins, applied in the biological field, can solve the problems of serious environmental pollution, complicated production procedures, short storage time, etc., and achieve the effects of overcoming many procedures, ensuring product quality, and reducing production costs.
Inactive Publication Date: 2016-06-01
赵建英
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Problems solved by technology
In the current epoxy vinyl ester resin synthesis process, the cost of the finished product is too high, and the environmental pollution is serious, not only the production process is complicated, the production efficiency is low, and the storage time is short
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0012] The alkyd resin modified epoxy vinyl ester resin synthesis technique of the present embodiment comprises the following steps:
[0013] (1) The ingredients are composed by mass percentage. The formula is prepared for use: bisphenol A epoxy resin 40% organic monobasic unsaturated carboxylic acid 10% organic dibasic acid 10% catalyst 0.25% polymerization inhibitor 0.05% crosslinkable monomer 30% Alkyd resin 5% Accelerator 4%;
[0014] (2) Add bisphenol A type epoxy resin, organic monobasic unsaturated carboxylic acid, organic dibasic acid, catalyst and part of polymerization inhibitor into the ring-opening esterification reactor according to the ratio, stir under the condition of nitrogen gas, gradually Raise the temperature to 170°C, the reaction system becomes uniform and transparent, and then keep the temperature until the measured acid value is equal to 30mgKOH / g;
[0015] (3) Dilute and cool down to 140°C, add cross-linkable monomers and a little polymerization inhib...
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Abstract
The invention relates to a synthetic process of alkide resin modified epoxy vinyl ester resin. Diphyenylol A epoxy resin, organic monobasic unsaturated carboxylic acid, organic dibasic acid, a catalyst and a polymerization inhibitor are added into a reactor according to a certain ratio, a ring-opening esterification reaction is carried out, then in the presence of the polymerization inhibitor, a cross-linkable monomer is added for dilution, alkide resin is added for modification and an accelerating agent is added for accelerating in advance. The synthetic process has the beneficial effects that in the ring-opening esterification reaction, the organic dibasic acid is introduced as a chain extender, and the alkide resin is added in the diluting process to mix and modify, so that the resin ductility is greatly enhanced, the elongation at break of a resin casting body is more than 8%, and the impact strength reaches 20 kJ / m<2> or more; meanwhile, the resin solidification shrinkage rate is greatly reduced, the bonding strength is greatly improved, and needs of special composite materials are met. The synthetic process is simple, has no production of 'three wastes', conformities with environmental protection requirements and has good product stability.
Description
technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a synthesis process of alkyd resin modified epoxy vinyl ester resin. Background technique [0002] The resins are natural resins such as rosin and benzoin, and synthetic resins such as phenolic resin and polyvinyl chloride resin. The surface is slightly shiny, hard and brittle, and a few are semi-solid. It is insoluble in water and does not swell when it absorbs water. It is easily soluble in most organic solvents such as alcohol, ether, and chloroform. It softens by heating, and finally melts. When it burns, there will be thick smoke and special aroma or odor. Divided into two categories of natural resin and synthetic resin. In the current epoxy vinyl ester resin synthesis process, the cost of the finished product is too high, and the environmental pollution is serious. The production process is complicated, the production efficiency is low, and the storage time is ...
Claims
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IPC IPC(8): C08G59/16
Inventor 赵建英
Owner 赵建英