Waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy and preparation method thereof

A water-based epoxy and interpenetrating network technology, which is applied in the field of water-based epoxy/unsaturated polyester polymer alloys and their preparation, and achieves the effects of excellent tensile strength, good application prospects, and excellent heat and corrosion resistance.

Inactive Publication Date: 2012-09-26
佘植能 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Interpenetrating network polymers to improve the physical and chemical properties of unsaturated polyesters has been proven to be an efficient modi

Method used

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  • Waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy and preparation method thereof
  • Waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy and preparation method thereof
  • Waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy and preparation method thereof

Examples

Experimental program
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Effect test

Example Embodiment

[0048] Example 1:

[0049] In a reactor equipped with a stirrer, a condenser, a constant pressure feeding device and a thermometer, add 150Kg of bisphenol A type epoxy resin CYD-128, heat it to 70 ° C, and drip it with a constant pressure feeding device under stirring after constant temperature. Add 25Kg of 2,2-dimethylolbutyric acid solution dissolved in N-methylpyrrolidone, add dropwise for half an hour, rise to 100°C, measure the acid value of the system regularly, stop the reaction when the acid value of the system is less than 5mgKOH / g , cooling to obtain product A;

[0050] Then drop into the maleic anhydride of 50Kg, be warming up to 130 ℃, take concentrated sulfuric acid as a catalyst, measure the acid value every half an hour, stop the reaction when the acid value basically does not change, and cool down to obtain product B;

[0051] Finally, add 13Kg of triethylamine as neutralizer, react for 30min, slowly add 400Kg of deionized water dropwise and quickly stir and d...

Example Embodiment

[0056] Example 2:

[0057] In a reactor equipped with a stirrer, a condenser, a constant pressure feeding device and a thermometer, add 100Kg of bisphenol A type epoxy resin CYD-128, heat it to 70 ° C, and drip it with a constant pressure feeding device under stirring after constant temperature. Add 25Kg of 2,2-dimethylolbutyric acid solution dissolved in N-methylpyrrolidone, add dropwise for half an hour, rise to 100°C, measure the acid value of the system regularly, stop the reaction when the acid value of the system is less than 5mgKOH / g , cooling to obtain product A;

[0058] Then drop into the maleic anhydride of 30Kg, be warming up to 130 ℃, take the vitriol oil as a catalyst, measure the acid value every half an hour, stop the reaction when the acid value basically does not change, cool down to obtain product B;

[0059] Finally, add 13Kg of triethylamine as neutralizer, react for 30min, slowly add 250Kg of deionized water dropwise and quickly stir and disperse, cool a...

Example Embodiment

[0064] Example 3:

[0065] In a reactor equipped with a stirrer, a condenser, a constant pressure feeding device and a thermometer, add 150Kg of bisphenol A type epoxy resin CYD-128, heat it to 70 ° C, and drip it with a constant pressure feeding device under stirring after constant temperature. Add 25Kg of 2,2-dimethylolbutyric acid solution dissolved in N-methylpyrrolidone, add dropwise for half an hour, rise to 100°C, measure the acid value of the system regularly, stop the reaction when the acid value of the system is less than 5mgKOH / g , cooling to obtain product A;

[0066] Then drop into the maleic anhydride of 40Kg, be warming up to 130 ℃, take concentrated sulfuric acid as a catalyst, measure the acid value every half an hour, stop the reaction when the acid value basically does not change, and cool down to obtain product B;

[0067] Finally, add 13Kg of triethylamine as neutralizer, react for 30min, slowly add 350Kg of deionized water dropwise and quickly stir and d...

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Abstract

The invention relates to a waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy and a preparation method of the alloy; the waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy is composed of a waterborne epoxy/unsaturated polyester component A, a waterborne unsaturated polyester component B and a curing agent component C; a mixing ratio measured by mass of the waterborne epoxy/unsaturated polyester component A and the waterborne unsaturated polyester component B is 2: 1-1: 2; dosage of the curing agent component C is 0.025-0.1% of total mass of the waterborne epoxy/unsaturated polyester component A and the waterborne unsaturated polyester component B; an obtained emulsion C is mixed with the obtained emulsion D, and the curing agent component C of cyclohexanone peroxide and cobalt naphthenate is added into a mixture of the obtained emulsion C and the obtained emulsion D, the mixture is poured into a mould after the mixture is stirred uniformly, is baked at 80-100 degrees centigrade, and is cured to obtain a product that is waterborne epoxy/unsaturated polyester interpenetrating network polymer alloy; the method can effectively play a modification role of epoxy resins, and uses water as disperse phase, so that the method is secure and environment friendly; impact strength and tensile strength of condensates are excellent; heat resistance and corrosion resistance are excellent.

Description

technical field [0001] The invention relates to a water-based epoxy / unsaturated polyester polymer alloy and a preparation method thereof. Background technique [0002] Unsaturated polyester resin (UPR) is a thermosetting resin, which is the polycondensation product of unsaturated dibasic acid, saturated dibasic acid and polyol. It is widely used in chemical industry, machinery, electrical appliances, transportation and artificial stone for architectural decoration, etc. field. Its cross-linked network structure makes its composite products have good mechanical properties and dimensional stability under heat and stress, and has excellent electrical properties, chemical corrosion resistance, simple and cheap processing technology, but this cross-linking When the structure is used in some specific occasions, the impact performance cannot meet the requirements, and the application is greatly restricted. Improving the impact resistance and toughness of unsaturated polyester is ...

Claims

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Application Information

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IPC IPC(8): C08L63/10C08L67/06C08G59/16C08G59/14C08G59/50C08G63/52C08K5/14C08K5/098
Inventor 佘植能张良均刘洋
Owner 佘植能
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