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Production method of polyvinyl chloride paste resin for preparing impregnating layers of safety gloves

A technology of polyvinyl chloride paste and labor protection gloves, which is applied in the production field of polyvinyl chloride paste resin used to prepare the impregnated layer of labor protection gloves, can solve the problems of low dilatancy and inability to meet the requirements of the impregnated layer of labor protection gloves, and achieve Improve rheological properties, good dilation characteristics, satisfy thin and impermeable effect

Active Publication Date: 2019-07-02
TANGSHAN SANYOU CHLOR ALKALI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the ordinary polyvinyl chloride paste resin disclosed has low dilatancy and cannot meet the requirements of the impregnated layer of labor protection gloves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 100 parts of vinyl chloride, 100 parts of deionized water, 1.6 parts of emulsifier compounded by anionic surfactant and higher alcohol, 1.5 parts of nano-silica aqueous dispersion and 0.08 parts of initiator, enter the polymerization tank after homogenization Polymerization reaction, the polymerization temperature is 53, the reaction time is 852 minutes, and the vinyl chloride recovery operation is carried out to obtain the latex. The latex is spray-dried, the temperature of entering the drying tower is 185°C, and the temperature of exiting the tower is 85°C, and then crushed by a pulverizer to obtain a finished resin.

[0026] After testing, the average particle size of the resin is 1.321 μm, the degree of polymerization is 895, the B paste viscosity is 8200mpa.s, and the permeability resistance is good.

Embodiment 2

[0028] A mixture of 100 parts of vinyl chloride, 100 parts of deionized water, 1.5 parts of an anionic surfactant and an emulsifier compounded with a higher alcohol, and 0.075 parts of an initiator, after homogenization, enters a polymerization tank for polymerization reaction. The polymerization temperature is 53 ° C. In 889 minutes, the vinyl chloride recovery operation was carried out, and after the latex was obtained, 2 parts of fumed silica were added. The latex is spray-dried, the temperature of entering the drying tower is 180°C, and the temperature of exiting the tower is 82°C, and then crushed by a pulverizer to obtain a finished resin.

[0029] After testing, the average particle size of the resin is 1.218μm, the degree of polymerization is 886, the viscosity of B's ​​paste is 8750mpa.s, and the permeability resistance is good.

Embodiment 3

[0031] 100 parts of vinyl chloride, 100 parts of deionized water, 1.5 parts of an anionic surfactant and an emulsifier compounded with a higher alcohol, a mixture of 0.075 parts of an initiator, 1.3 parts of nano-calcium carbonate, homogenized, and enter the polymerization tank for polymerization reaction, polymerization The temperature is 53°C, the reaction time is 897 minutes, and the vinyl chloride recovery operation is carried out to obtain latex. The latex is spray-dried, the temperature of entering the drying tower is 205°C, and the temperature of exiting the tower is 95°C, and then crushed by a pulverizer to obtain a finished resin.

[0032] After testing, the average particle size of the resin is 1.274μm, the degree of polymerization is 867, the B's paste viscosity is 13200mpa.s, and the permeability resistance is good.

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Abstract

The invention relates to a production method of a polyvinyl chloride paste resin, and especially relates to a production method of a polyvinyl chloride paste resin for preparing impregnating layers ofsafety gloves. The polyvinyl chloride paste resin comprises 100-120 parts of vinyl chloride, 100-120 parts without ionized water, 1.0-2.0 parts of a composite emulsifier, 0.1-5 parts of a modifier and 0.05-0.1 part of an initiator. The production method comprises the following steps: homogenizing the above raw materials, adding the homogenized raw materials into a polymerization reactor, carryingout a polymerization reaction for 800-1000 min, and recovering the vinyl chloride to obtain a latex; and carrying out spray drying on the latex in a drying tower with a tower inlet temperature of 180-220 DEG C and a tower outlet temperature of 80-100 DEG C, and then crushing the obtained material by a crusher to form 0.1-3 [mu]m resin that is the finished resin. The modifier added in conventionally disclosed production technologies of micro-suspension process paste resins improves the rheology of the paste resin in order to make the plasticized paste have a high viscosity at a low shearing rate.

Description

technical field [0001] The invention relates to a production method of a polyvinyl chloride paste resin, in particular to a production method of a polyvinyl chloride paste resin used for preparing a dipping layer of labor protection gloves. Background technique [0002] Polyvinyl chloride paste resin is a polymer product made of vinyl chloride monomer, which is a conventional chemical raw material and widely used. [0003] The polymerization process of vinyl chloride is relatively complicated, and the performance of polyvinyl chloride resin produced by different raw material ratios and preparation processes is quite different. At present, the latex produced by polyvinyl chloride paste resin needs centrifugal spray drying, and the polymerization formula and spray drying parameters directly affect the quality and performance of the product. [0004] The polyvinyl chloride paste resin used to prepare the impregnation layer of labor protection gloves needs better dilatancy to m...

Claims

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Application Information

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IPC IPC(8): C08F114/06C08F2/44C08K3/36C08K3/26
CPCC08F114/06C08K3/26C08K3/36C08K2003/265C08K2201/011C08F2/44
Inventor 赵丽颖李德军刘洋周云飞赵亮王峰李向璐唐志军马哲纯孙震利李明徐建玲崔小英刘黎杜建军代春春刘志勇
Owner TANGSHAN SANYOU CHLOR ALKALI
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