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Synthesis process of waterborne fluorocarbon resin

A water-based fluorocarbon resin and synthetic technology, applied in the direction of coating, etc., can solve the problems of cumbersome preparation methods, and achieve the effects of pure quality, low manufacturing cost, and easy operation

Inactive Publication Date: 2014-10-08
ANHUI HUABO FOIL IND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since fluorocarbon resins are solid resins with high melting points and insoluble in solvents, they can be made into water or solvent-dispersed coatings, which can be applied by spraying, electrostatic spraying, curtain coating, roller coating, etc., or as powder coatings. It is painted by electrostatic spraying or fluidized bed dipping method, so its preparation method is relatively cumbersome. At present, there is no effective way to synthesize a new type of water-based fluorocarbon resin.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The water-based fluorocarbon resin synthesis process comprises the following process steps,

[0022] (1) Fluorine resin preparation

[0023] a. Select a high-pressure reactor as the reaction vessel.

[0024] b. Weigh 20kg of vinyl acetate, 6kg of hydroxyethyl allyl ether, 32kg of butyl acetate and 1kg of initiator into the autoclave of step a.

[0025] c. depressurize the autoclave in the above step b and extract the internal air.

[0026] Weigh 39 kg of chlorotrifluoroethylene and put it into the reaction kettle in the above step c, control the temperature in the kettle at 65°C, and react at constant temperature for 15 hours to obtain the fluororesin for use.

[0027] (2) Preparation of water-based fluorocarbon resin

[0028] a. Select the common reactor as the reaction vessel again.

[0029] b. Weigh 35 kg of the fluororesin prepared in the above step (1) and put it into the reaction kettle in step a.

[0030] c. Turn on the stirring device for stirring, and rais...

Embodiment 2

[0035] The water-based fluorocarbon resin synthesis process comprises the following process steps,

[0036] (1) Fluorine resin preparation

[0037] a. Select a high-pressure reactor as the reaction vessel.

[0038] b. Weigh 21.4kg of vinyl acetate, 6.2kg of hydroxyethyl allyl ether, 32.59kg of butyl acetate and 1.06kg of initiator into the autoclave of step a.

[0039] c. depressurize the autoclave in the above step b and extract the internal air.

[0040] Weigh 39.11 kg of chlorotrifluoroethylene and put it into the reaction kettle in the above step c, control the temperature in the kettle at 70°C, and react at constant temperature for 20 hours to obtain the fluororesin for use.

[0041] (2) Preparation of water-based fluorocarbon resin

[0042] a. Select the common reactor as the reaction vessel again.

[0043] b. Weigh 35.39 kg of the fluororesin prepared in the above step (1) and put it into the reaction kettle in step a.

[0044] c. Turn on the stirring device for st...

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PUM

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Abstract

The invention discloses a synthesis process of a waterborne fluorocarbon resin, and relates to the technical field of chemical industry. The synthesis process comprises the steps: firstly, preparing fluororesin through interreaction of vinyl acetate, hydroxyethyl allyl ether, butyl acetate, an initiator and chlorotrifluor ethylene, then taking the fluororesin as a raw material, evaporating, adjusting the pH value, stirring, and carrying out a reaction with an emulsifying agent and water to obtain the product. The synthesis process has the beneficial effects that the synthesis process has the advantages of convenient and simple preparation, environmental protection, no pollution, easy availability of raw materials, little equipment investment, pure quality and convenient operation, and the prepared waterborne fluorocarbon resin is good in use effect, safe and non-toxic, long in storage time, low in manufacturing cost, and safe and reliable.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a synthesis process of water-based fluorocarbon resin. Background technique [0002] Fluorocarbon resin has a strong C-F bond as the skeleton. Compared with other resins, it has better heat resistance, chemical resistance, cold resistance, low temperature flexibility, weather resistance and electrical properties, and because of its good crystallinity , so it is non-adhesive and non-wetting. Widely used in kitchen and cooking utensils, molding molds, mechanical sliding parts, advanced coil coatings for food, textile, papermaking and other industrial machinery, various tanks, pipelines, pumps, reactors, heat exchangers and precision instruments And other coating and lining. Since fluorocarbon resins are solid resins with high melting points and insoluble in solvents, they can be made into water or solvent-dispersed coatings, which can be applied by spraying, electrostat...

Claims

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Application Information

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IPC IPC(8): C08F214/24C08F218/08C08F216/14C09D127/12
Inventor 李振宏饶二宽杨凯唐洋洋
Owner ANHUI HUABO FOIL IND SCI & TECH