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A kind of formula and preparation method of bulk polymerized chloroether resin

A chloroether resin and bulk polymerization technology, which is applied in the formulation and preparation of bulk polychloroether resin, can solve the problems of uneven suspension polymerization, unfavorable environmental protection, and containing a large amount of salty wastewater, and achieve excellent quality and large Good conversion rate and solubility

Active Publication Date: 2022-04-12
HANGZHOU ELECTROCHEM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a large amount of salty wastewater, which is not conducive to environmental protection
[0005] The market needs a polymerization method that can solve the problem of uneven polymerization of suspension polymerization and the problem that the emulsion polymerization process contains a large amount of saline waste water. The present invention solves such problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A preparation method of bulk polymerized chloroether resin, comprising the steps of:

[0028] Prepare materials according to the formula; the formula includes: 65-75 parts of vinyl chloride monomer, 25-35 parts of vinyl isobutyl ether, the third monomer is 1-5‰ of the weight of vinyl monomer, and the initiator is the weight of vinyl monomer 0.1~5‰;

[0029] Put vinyl isobutyl ether, initiator, and the third monomer into the autoclave, then press into the vinyl chloride monomer, stir and heat up to the reaction temperature of 40-80°C, react for 5-6 hours at ℃, and the control range of the conversion rate is 10 ~60%, the pressure drop is about 0.1~0.3Mpa, filter and dry to obtain fine particles of chloroether resin. If the conversion rate is too low, the efficiency will be low, the energy loss of raw materials will be large, and the conversion rate should not be too high. A certain proportion of liquid monomers must be maintained in the polymerization system to ensure th...

Embodiment 1

[0033] Put 0.75kg (30 parts) isobutyl vinyl ether, 10g (5.7‰) initiator TX-23, 5g (2.9‰) third monomer GMA (glycidyl methacrylate) into a 5L polymerization kettle, press Add 1.75kg (70 parts) of VCM (vinyl chloride) monomer, stir and raise the temperature to about 58°C for 5 hours, cool down, filter and recover the monomer, and then dry to obtain 1.2kg of white fine-grained chloroether resin. The measured viscosity of 20% toluene solution is 45mPa·s, the chlorine content is 43.6%, the 20% ethyl acetate solution is clear and transparent, and is stable for 24 hours at 105°C.

Embodiment 2

[0035] Put 0.625kg (25 parts) of isobutyl vinyl ether, 10g (5‰) initiator TX-23, 5g (2.7‰) third monomer GMA into the 5L polymerization kettle, press into VCM monomer 1.875kg (75 parts), stirring and raising the temperature to about 58°C for 5 hours, cooling down, recovering the monomer, filtering and drying to obtain 1.1 kg of white fine particle chloroether resin. The measured viscosity of 20% toluene solution is 46mPa·s, the chlorine content is 44.1%, the 20% ethyl acetate solution is clear and transparent, and is stable for 24 hours at 105°C.

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PUM

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Abstract

The invention discloses a formula of bulk polymerized chloroether resin and a preparation method thereof. The formula includes: 65-75 parts of vinyl chloride monomer, 25-35 parts of vinyl isobutyl ether, and the third monomer is vinyl monomer 1 to 5‰ of the weight, and the initiator is 0.1 to 5‰ of the weight of the ethylene monomer; the preparation method includes the following steps: putting vinyl isobutyl ether, the initiator, and the third monomer into the autoclave, and then pressing into the chlorine Ethylene monomer, stirred and heated to a reaction temperature of 40-80°C, reacted for 5-6 hours, the control range of the conversion rate was 10-60%, the pressure drop was about 0.1-0.3Mpa, filtered and dried to obtain fine particles of chloroether resin; The invented formula and method have uniform polymerization and pure system, and the obtained chloroether resin has good quality and good solubility.

Description

technical field [0001] The invention relates to the field of chemical synthesis, in particular to a formulation of bulk polymerized chloroether resin and a preparation method thereof. Background technique [0002] Vinyl chloride-isobutyl vinyl ether (VC-IBVE) copolymer resin, referred to as chloroether resin, is a kind of binder resin with excellent comprehensive performance for coatings and inks. It can be dissolved in many solvents, including aromatic hydrocarbons commonly used in coating production. and ester solvents; it can be miscible with alkyd resin, acrylic resin, dry oil, tar, asphalt and plasticizer; chlorine ether resin has strong saponification resistance, and because the combined chlorine atoms are very stable, the coating has Water resistance and chemical corrosion resistance, its anti-corrosion ability is 2 to 3 times that of ordinary anti-corrosion coatings; at the same time, because chloroether resin does not contain reactive double bonds, it is not easy to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/06C08F216/18C08F220/32C08F2/02
CPCC08F214/06C08F2/02C08F216/18
Inventor 郑琪卢孔燎叶小明葛晴陈浙楼锦焕
Owner HANGZHOU ELECTROCHEM GROUP