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High-fluidity polyvinyl chloride paste resin and preparation method thereof

A polyvinyl chloride paste resin and a technology for polyvinyl chloride paste, which are applied in the field of high-fluidity polyvinyl chloride paste resin and its preparation, can solve the problems of low fluidity, cross-section, unfavorable environmental protection and the like, achieve high fluidity and reduce costs , the effect of reducing the dosage

Pending Publication Date: 2022-04-12
JIANGSU KANGNING CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For ultra-thin coatings (less than 10 filaments), the fluidity of current coating materials is still relatively low compared to such applications, and it is easy to have cross-sections, pinholes, and insufficient flatness of the finished product during the coating and scraping process, and fluid consumption during processing The average dose is relatively large, which is not conducive to environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of polyvinyl chloride paste resin, comprising the following steps:

[0020] S1 adds 10 tons of temperature to the seed emulsion method polymerization kettle and is 58 ℃ of deionized water, then adds 7Kg buffering agent sodium bicarbonate and 1000g mass percent concentration and is the activator copper sulfate solution of 1%; Vacuumize, vacuum degree is -0.095MPa, use negative pressure to suck 900g of oxidant a potassium persulfate and 10Kg of reducing agent sodium metabisulfite into the seed emulsion polymerization kettle for aging, the aging temperature is 54°C, and the aging time is 30min; Add 2.2 tons of vinyl chloride monomer to the emulsion method polymerization kettle, keep the reaction temperature at 50°C, and continuously add 8.8 tons of vinyl chloride monomer and 1.3Kg of oxidant b persulfuric acid to the seed emulsion method polymerization kettle according to the heat of reaction Potassium and 80Kg emulsifier a secondary alkyl sulfonate so...

Embodiment 2

[0025] A preparation method of polyvinyl chloride paste resin, comprising the following steps:

[0026] S1 adds 9.5 tons of temperature to the seed emulsion method polymerization kettle and is the deionized water of 53 ℃, then adds 8Kg buffering agent sodium bicarbonate and 900g mass percent concentration and is the activator copper sulfate solution of 1%; Vacuumize, vacuum degree is -0.095MPa, use negative pressure to suck 850g of oxidant a potassium persulfate and 12Kg of reducing agent sodium metabisulfite into the seed emulsion polymerization kettle for aging, the aging temperature is 49°C, and the aging time is 60min; Add 2 tons of vinyl chloride monomer to the emulsion method polymerization kettle, keep the reaction temperature at 46°C, and continuously add 9 tons of vinyl chloride monomer and 1.5Kg of oxidant b persulfuric acid to the seed emulsion method polymerization kettle according to the heat of reaction Potassium and 85Kg emulsifier a secondary alkyl sulfonate so...

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PUM

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Abstract

The preparation method comprises the following steps: S1, adding deionized water, a buffering agent and an activating agent into a polymerization kettle, vacuumizing, and adding an oxidizing agent a and a reducing agent for aging; aging, adding a vinyl chloride monomer, polymerizing, and adding an oxidizing agent b and an emulsifying agent a at the same time; obtaining seeds after the reaction is finished; s2, adding deionized water, vinyl chloride, an initiator a, an initiator b, an emulsifier a and an emulsifier b into a micro-suspension dispersion tank, uniformly dispersing, and pumping into a vacuumized polymerization kettle through a pump; and S3, carrying out a reaction in a polymerization kettle, and carrying out spray drying after the reaction so as to obtain a polyvinyl chloride paste resin finished product. The composite emulsifier is adopted, and the characteristics of different emulsifiers are combined, so that the product meets the requirement for high-fluidity processing.

Description

technical field [0001] The invention relates to a paste resin and a preparation method thereof, in particular to a high-fluidity polyvinyl chloride paste resin and a preparation method thereof. Background technique [0002] At present, polyvinyl chloride paste resin is widely used in many fields such as artificial leather, wallpaper, conveyor belt, disposable PVC gloves, etc. According to the use characteristics, PVC paste resin is mainly divided into foaming materials (wallpaper, etc.), leather materials (artificial leather, etc.), coating materials (conveyor belts, etc.), and glove materials (disposable PVC gloves). For ultra-thin coatings (less than 10 filaments), the fluidity of current coating materials is still relatively low compared to such applications, and it is easy to have cross-sections, pinholes, and insufficient flatness of the finished product during the coating and scraping process, and fluid consumption during processing The average dose is relatively larg...

Claims

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Application Information

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IPC IPC(8): C08F114/06C08F2/26C08F2/18
Inventor 孟永华余莲丁丽符超伟赵海良
Owner JIANGSU KANGNING CHEM CO LTD