Low temperature plasticized polyvinyl chloride plastisol and preparation method thereof

A technology for polyvinyl chloride and plastisol is applied in the field of polyvinyl chloride plastisol and its preparation, which can solve the problems of increasing exhaust gas emission, complicated process, increasing environmental protection pressure, etc., and achieves the effects of lowering plasticizing temperature and simple preparation process.

Inactive Publication Date: 2016-11-23
SHANGHAI CHLOR ALKALI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of synthesizing the closed-end polyurethane prepolymer by this method is complicated, and a large amount of diluent is added in the synthesis process. Most of the diluent volatilizes when the plastisol is plasticized at high temperature, which increases the emission of waste gas and increases the pressure on environmental protection. Therefore, the application of the plastisol is limited
Patent CN 101717550 A discloses a method for preparing medical soft polyvinyl chloride plastics using ionic liquids as PVC plasticizers. In this patent, ionic liquids are used as plasticizers for PVC suspension resins, and hoses are prepared by extrusion processes, but Not involved in the field of PVC paste resin and PVC plastisol

Method used

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  • Low temperature plasticized polyvinyl chloride plastisol and preparation method thereof
  • Low temperature plasticized polyvinyl chloride plastisol and preparation method thereof
  • Low temperature plasticized polyvinyl chloride plastisol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add PVC paste resin, vinyl chloride-vinyl chloride paste resin, blending resin, ionic liquid, plasticizer, heat stabilizer, adhesion promoter, filler, thixotropic agent and diluent according to the parts in the table.

[0042] in:

[0043] The PVC paste resin is an emulsion polymer resin with a polymerization degree of 1000, the vinyl chloride resin is an emulsion polymer resin with a polymer 800, the blended resin is SB100, and the ionic liquid is 1-allyl-3-methylimidazolium chloride, plasticized The agent is dioctyl phthalate, the heat stabilizer is organotin, the adhesion promoter is closed-end polyurethane, the filler is light calcium carbonate, the thixotropic agent is nano-silica, and the diluent is C 12 isoparaffins. The preparation method is as follows: at room temperature, after mixing the components, fully dispersing and evenly, vacuum defoaming for 3 hours, and then aging for 24 hours, the product is prepared, and the plasticizing temperature of the product ...

Embodiment 2

[0045] Add PVC paste resin, vinyl chloride-vinyl chloride paste resin, blending resin, ionic liquid, plasticizer, heat stabilizer, adhesion promoter, filler, thixotropic agent and diluent according to the parts in the table.

[0046] in:

[0047] The PVC paste resin is an emulsion polymer resin with a polymerization degree of 1200, the vinyl chloride resin is an emulsion polymer resin with a polymer 900, the blended resin is SB100, the ionic liquid is 1-butyl-2-methylpyrazole bromide, plasticized The agent is diisodecyl phthalate, the heat stabilizer is organotin, the adhesion promoter is polyamide, the filler is light calcium carbonate, the thixotropic agent is nano-silica, and the diluent is C 18 isoparaffins. The preparation method is as follows: at room temperature, after mixing the components, fully disperse and evenly, vacuum defoaming for 5 hours, and then aging for 24 hours, the product is prepared, and the plasticizing temperature of the product is 127°C.

Embodiment 3

[0049] Add PVC paste resin, vinyl chloride-vinyl chloride paste resin, blending resin, ionic liquid, plasticizer, heat stabilizer, adhesion promoter, filler, thixotropic agent and diluent according to the parts in the table.

[0050] Among them, the PVC paste resin is an emulsion polymer resin with a polymerization degree of 800, the vinyl chloride resin is an emulsion polymer resin with a polymer 1200, the blended resin is SB100, and the ionic liquid is 1-butyl-3-methylimidazolium chloride, plasticized The agent is diisobutyl phthalate, the heat stabilizer is organotin, the adhesion promoter is polyamide, the filler is light calcium carbonate, the thixotropic agent is nano-silica, and the diluent is C 16 isoparaffins. The preparation method is as follows: at room temperature, the components are mixed fully and evenly dispersed, vacuum degassed for 6 hours and then matured for 48 hours to prepare the product. The plasticizing temperature of the product is 121°C.

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Abstract

The invention provides low temperature plasticized polyvinyl chloride plastisol. The low temperature plasticized polyvinyl chloride plastisol comprises, by weight, 20-70 parts of PVC paste resin, 20-50 parts of vinyl chloride-vinyl acetate copolymer paste resin, 2-20 parts of mixed resin, 10-80 parts of an ionic liquid, 10-80 parts of a plasticizer, 1-3 parts of a heat stabilizer, 0.1-1 part of an adhesion promoter, 5-40 parts of a filler, 0.1-2 parts of a thixotropic agent and 0-10 parts of a diluent. The low temperature plasticized polyvinyl chloride plastisol effectively reduces a plastisol plasticizing temperature to 120-130 DEG C, utilizes the nontoxic and nonvolatile ionic liquid so that environment protection and operation personnel safety are guaranteed, and can be prepared through simple processes without a special additional technology.

Description

technical field [0001] The invention relates to a polyvinyl chloride plastisol and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC for short) plastisols are widely used in the automotive industry and in the field of fabric coating. Especially in the automotive industry, typical products are PVC anti-stone chip primers and PVC weld seam sealants. [0003] At present, the plasticizing temperature required by PVC plastisol products on the market is generally high, most of which are above 140 °C. Thermal stability puts forward higher requirements, so how to reduce the plasticizing temperature of PVC plastisol has always been an important topic for many manufacturers and researchers. Patent Publication Nos. CN101402772A and CN102675995A respectively disclose a method for preparing low-temperature plasticized PVC plastisol. In this method, a closed-end polyurethane prepolymer is added to the formula, and the reaction of isocyanate is used to r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/26C08K3/36C08K5/57C08K5/58
Inventor 董炜星沈爱华郑晓峰
Owner SHANGHAI CHLOR ALKALI CHEM
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