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PVC (polyvinyl chloride) paste resin used for preparing medical glove and production method thereof

A technology of polyvinyl chloride paste resin and vinyl chloride monomer, applied in the field of micro-suspension polymerization of vinyl chloride monomer, to achieve good thermal stability, stable dispersion, and good stability

Active Publication Date: 2013-02-06
HUBEI SHANSHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, my country's glove processing enterprises have been using imported polyvinyl chloride powder, and there is no special material suitable for the production of gloves among the many paste resin brands in China; especially for the production of medical-grade gloves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of production method of polyvinyl chloride paste resin, comprises the following steps:

[0029] 1) Feed 0.8 parts of 1#, 0.92 parts of 2# and 0.2 parts of 3# emulsifiers into the dissolving tank, add 24.5 parts of desalted water and heat to 70°C, fully stir and dissolve to obtain the compound emulsifier of the ternary system;

[0030] 2) Add the above compound emulsifier, 73.5 parts of desalted water, and 0.07 parts of pH regulator into the premixing tank, stir for 10 minutes, add 0.034 parts of initiator when the temperature of the premixing tank is lower than 28°C, and then add 100 parts of chlorine For ethylene monomer, start the dispersion pump to circulate the material in the premix tank, when the cumulative flow of the circulation reaches 200M 3 Finally, transfer the material to the polymerization kettle with a homogenizer;

[0031] 3) Use hot water to raise the temperature and control the reaction temperature in the polymerization kettle to 46°C. After 88...

Embodiment 2

[0034] A kind of production method of polyvinyl chloride paste resin, comprises the following steps:

[0035] 1) Feed 0.8 parts of 1#, 0.98 parts of 2# and 0.25 parts of 3# emulsifiers into the dissolution tank, add 24.5 parts of desalted water, heat to 70 ° C, fully stir and dissolve, and obtain the compound emulsifier of the ternary system;

[0036] 2) Add the above compound emulsifier, 73.5 parts of desalted water, and 0.07 parts of pH regulator into the premixing tank, stir for 10 minutes, add 0.034 parts of initiator when the temperature of the premixing tank is lower than 28°C, and then add 100 parts of chlorine For ethylene monomer, start the dispersion pump to circulate the material in the premix tank, when the cumulative flow of the circulation reaches 200M 3 Finally, transfer the material to the polymerization kettle with a homogenizer;

[0037] 3) Use hot water to raise the temperature and control the reaction temperature in the polymerization kettle to 43°C. After...

Embodiment 3

[0040] A kind of production method of polyvinyl chloride paste resin, comprises the following steps:

[0041] 1) Feed 0.75 parts of 1#, 0.85 parts of 2# and 0.17 parts of 3# emulsifiers into the dissolution tank, add 24.5 parts of desalted water and heat to 70°C, stir and dissolve fully, and obtain the compound emulsifier of the ternary system;

[0042] 2) Add the above compound emulsifier, 73.5 parts of desalted water, and 0.07 parts of pH regulator into the premixing tank, stir for 10 minutes, add 0.04 parts of initiator when the temperature of the premixing tank is lower than 28°C, and then add 100 parts of chlorine For ethylene monomer, start the dispersion pump to circulate the material in the premix tank, when the cumulative flow of the circulation reaches 200M 3 Finally, transfer the material to the polymerization kettle with a homogenizer;

[0043] 3) Use hot water to raise the temperature and control the reaction temperature in the polymerization kettle to 47°C. Afte...

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PUM

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Abstract

A PVC (polyvinyl chloride) paste resin used for preparing a medical glove comprises the following raw materials according to parts by weight: 100 parts of vinyl chloride monomer, 98 parts of desalted water, 1.72-2.19 parts of compound emulsifier, 0.02-0.04 part of initiator and 0.07-0.12 part of pH modifier. The production method comprises the steps as follows: adding the compound emulsifier, desalted water and a pH modifier into a premixing tank for stirring, adding the initiator and a vinyl chloride monomer, starting a diffusion pump for external circulation of the materials, turning the materials in a polymerizing pot through a homogenizer for polymerization reaction, discharging the materials in the polymerizing pot to a discharging tank, recycling the reacted vinyl chloride monomer and drying the latex obtained through reaction to obtain the PVC paste resin. The product produced by the method can ensure the particle size and distribution of primary particles, the diffusion of the vinyl chloride monomer is more stable, and the heat stability of the product is good.

Description

technical field [0001] The invention relates to the field of microsuspension polymerization of vinyl chloride monomers, in particular to a polyvinyl chloride paste resin for preparing medical gloves and a production method thereof. Background technique [0002] At present, the production of polyvinyl chloride paste resin mainly includes emulsion method, micro-suspension method and mixing method. Different production technologies determine that the paste resin produced will have different application fields, and the difference in production process and formula will make the performance of the final product very different, so the paste resin produced by advanced technology and excellent formula can meet Needs in the field of special plastic processing. [0003] Now the disposable PVC gloves market is mainly in the United States, Europe and Japan, mainly used in medical and food-grade household fields. The potential space of China's disposable PVC gloves market is very large. ...

Claims

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Application Information

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IPC IPC(8): C08F114/06C08F4/04C08F2/38C08F2/26C08F2/30
Inventor 曾云井耀文胡帅
Owner HUBEI SHANSHUI CHEM
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