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
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[0027] Example 1:
[0028] A production method of polyvinyl chloride paste resin includes 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 desalinated water and heat to 70°C, fully stir and dissolve, to obtain a ternary system composite emulsifier;
[0030] 2) Add the above compound emulsifier, 73.5 parts of desalinated water, and 0.07 parts of pH adjuster into the premix tank, stir for 10 minutes, when the temperature of the premix tank is lower than 28℃, add 0.034 parts of initiator, and then add 100 parts of chlorine Ethylene monomer, start the dispersion pump to circulate the materials in the premix tank, when the cumulative circulation flow reaches 200M 3 Afterwards, use a homogenizer to transfer the material to the polymerization vessel;
[0031] 3) Using hot water to control the temperature, the reaction temperature in the polymerization kettle is 46°C. After the reaction time is ...
Example Embodiment
[0033] Example 2:
[0034] A production method of polyvinyl chloride paste resin includes 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 demineralized water, heat to 70°C, fully stir and dissolve to obtain a ternary system composite emulsifier;
[0036] 2) Add the above compound emulsifier, 73.5 parts of desalinated water, and 0.07 parts of pH adjuster into the premix tank, stir for 10 minutes, when the temperature of the premix tank is lower than 28℃, add 0.034 parts of initiator, and then add 100 parts of chlorine Ethylene monomer, start the dispersion pump to circulate the materials in the premix tank, when the cumulative circulation flow reaches 200M 3 Afterwards, use a homogenizer to transfer the material to the polymerization vessel;
[0037] 3) Using hot water to control the temperature, the reaction temperature in the polymerization kettle is 43°C. After the reaction time is 1120 minu...
Example Embodiment
[0039] Example 3:
[0040] A production method of polyvinyl chloride paste resin includes the following steps:
[0041] 1) Feed 0.75 parts of 1#, 0.85 parts of 2# and 0.17 parts of 3# emulsifier into the dissolution tank, add 24.5 demineralized water and heat to 70°C, fully stir and dissolve, to obtain a ternary system composite emulsifier;
[0042] 2) Add the above compound emulsifier, 73.5 parts of desalinated water, and 0.07 parts of pH adjuster into the premix tank, stir for 10 minutes, when the temperature of the premix tank is lower than 28℃, add 0.04 parts of initiator, and then add 100 parts of chlorine Ethylene monomer, start the dispersion pump to circulate the materials in the premix tank, when the cumulative circulation flow reaches 200M 3 Afterwards, use a homogenizer to transfer the material to the polymerization vessel;
[0043] 3) Using hot water to control the temperature, the reaction temperature in the polymerization kettle is 47°C. After the reaction time is 820 mi...
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