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High performance, environmental protective composition of insulating coating prepared by using recycling resources

A technology of insulating coatings and recycling resources, which is applied in the direction of polyester coatings, polyamide coatings, coatings, etc., and can solve environmental pollution and other problems

Inactive Publication Date: 2011-03-23
郭颖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to utilize recycled resources (waste polyester and nylon acid and its ester) to manufacture high-performance (can reach F grade) environment-friendly (can reach E grade) insulating coating composition; And solve the environment that exists in the prior art pollution problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Add 30 grams of neopentyl glycol, 30 grams of trihydroxypropane, and 0.05 grams of zinc acetate into the reaction kettle, heat to 215 ° C, add 100 grams of waste polyester material in batches, alcoholyze for 6 hours, and then add 0.4 grams of antimony trioxide gram, heat up to 245°C, carry out vacuum polycondensation for 2 hours, keep warm for 1 hour, add 0.5 grams of tributyl phosphate, 50 grams of dimethyl nylon acid and polymerize for half an hour, remove the vacuum, stop heating, and quickly add dimethyl nylon acid Stir 50 grams, lower the temperature to below 20°C, add 100 grams of dimethyl nylonate, 100 grams of butyl orthotitanate, and fully stir to prepare an insulating powder coating composition.

[0014] Performance test data:

[0015] Viscosity: 126 tu-4 cups (s.20℃±1℃)

[0016] Dryness: 18min(200℃)

[0017] Heat resistance: 4.5h (200℃±1℃)

[0018] Electric strength: 170KV·mm

[0019] Volume resistance: 4×10 15 ·Ωcm

[0020] The rest of the items meet t...

Embodiment 2

[0022] Add 500 grams of ethylene glycol, 250 grams of glycerin, and 0.5 grams of zinc acetate catalyst into the reaction kettle, heat up to 100°C, slowly add 700 grams of nylon acid, start stirring to control the heating rate, and carry out the esterification reaction for 6 hours. Transparent solution, at 240°C is the end point of esterification, add 0.5 g of polycondensation catalyst antimony trioxide, control the vacuum degree at 0.04-0.08Mpa to react for 2 hours, release the vacuum degree, keep it for half an hour, then add deep polymerization catalyst tributyl phosphate 0.35 grams of ester, under 0.08Mpa vacuum degree, constant temperature reaction for 0.5 hours, release the vacuum, add 1800 grams of dimethyl nylon acid and 15 grams of butyl orthotitanate, stir well, and then cool to room temperature, the insulating coating composition can be obtained .

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Abstract

This invention relates to an environmentally friendly high-performance insulating paint composition by using recovered resources. The insulating paint composition is used for enameled wires only, and is produced from waste polyesters, and nylon acid and its esters. The solvent is nylon acid dimethyl ester. The insulating paint composition has properties of F-level, and environmental performance of E-level. Besides, the cost is low by using wastes as the main raw materials.

Description

technical field [0001] The invention relates to a high-performance environment-friendly insulating coating composition manufactured by utilizing recycled resources. More specifically, the invention relates to wire enamelled varnish manufactured by using waste polyester and / or nylon acid and its ester, which belongs to the field of fine chemical industry. Background technique [0002] Traditional polyester or polyurethane wire enamel is made by dissolving polyester resin and polyurethane resin in cresol and xylene. Both cresol and xylene have certain toxicity and pollute the environment. Therefore, for many years, both at home and abroad have been researching and trial-producing insulating varnishes without phenol and xylene; or reducing the solvent content (currently, the solid content of wire enamel is 30-32%, which contains 68-70% of phenol and benzene solvents). Chinese patent CN1382753A "Phenol-free polyester wire enamel and production process" proposes a production pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D177/00C09D5/25
Inventor 郭颖张天德
Owner 郭颖