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Environment-friendly low-temperature curing PVC plastisol and preparation method thereof

An environment-friendly, plastisol technology, applied in the field of environment-friendly low-temperature curing PVC plastisol and its preparation, can solve the problems of low mechanical properties, high curing temperature, unenvironmental PVC plastisol, etc. The effect of plasticizing temperature

Inactive Publication Date: 2017-12-15
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to avoid the shortcomings of the above-mentioned prior art, the present invention aims to provide an environmentally friendly low-temperature curing PVC plastisol and a preparation method thereof, so as to solve the problems of non-environmental protection, high curing temperature and mechanical problems of PVC plastisol in the prior art. low performance issues

Method used

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  • Environment-friendly low-temperature curing PVC plastisol and preparation method thereof
  • Environment-friendly low-temperature curing PVC plastisol and preparation method thereof
  • Environment-friendly low-temperature curing PVC plastisol and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] At room temperature, add the adhesion promoter to the plasticizer and disperse evenly, then add PVC paste resin and vinyl chloride copolymer paste resin in turn, stir at 1000rpm for 5min, then add filler, stir at 2200rpm for 5min, then add heat stabilizer agent, thixotropic agent and CaO, stirred at 2800rpm for 8min, and the obtained mixture was ground by a three-roller mill to a fineness≤120μm (determined fineness with a scraper fineness meter), and then added viscosity reducer, at 3000rpm Stir at low temperature for 10 minutes, finally add BPU-Si, defoam at a vacuum of 0.095MPa for 15 minutes, then mature at room temperature for 24 hours, bake at 120-130°C for 25 minutes, and cool at room temperature for 12 hours to obtain PVC plastisol .

[0032] Wherein the PVC paste resin is a microsuspension polymer resin (PVC paste resin (TPM-31), industrial grade, Xinjiang Tianye) of a degree of polymerization of 1100, and the vinyl chloride-vinyl copolymer paste resin is a micr...

Embodiment 2

[0034] At room temperature, add the adhesion promoter to the plasticizer and disperse evenly, then add PVC paste resin and vinyl chloride copolymer paste resin in turn, stir at 1000rpm for 5min, then add filler, stir at 2200rpm for 5min, then add heat stabilizer agent, thixotropic agent and CaO, stirred at 2800rpm for 8min, and the obtained mixture was ground by a three-roller mill to a fineness≤120μm (determined fineness with a scraper fineness meter), and then added viscosity reducer, at 3000rpm Stir at low temperature for 10 minutes, finally add BPU-Si, defoam at a vacuum of 0.095MPa for 15 minutes, then mature at room temperature for 24 hours, bake at 120-130°C for 25 minutes, and cool at room temperature for 12 hours to obtain PVC plastisol .

[0035] Wherein the PVC paste resin is a microsuspension polymer resin (PVC paste resin (TPM-31), industrial grade, Xinjiang Tianye) of a degree of polymerization of 1200, and the vinyl chloride-vinyl chloride paste resin is a micro...

Embodiment 3

[0037]At room temperature, add the adhesion promoter to the plasticizer and disperse evenly, then add PVC paste resin and vinyl chloride copolymer paste resin in turn, stir at 1000rpm for 5min, then add filler, stir at 2200rpm for 5min, then add heat stabilizer agent, thixotropic agent and CaO, stirred at 2800rpm for 8min, and the obtained mixture was ground by a three-roller mill to a fineness≤120μm (determined fineness with a scraper fineness meter), and then added viscosity reducer, at 3000rpm Stir at low temperature for 10 minutes, finally add BPU-Si, defoam at a vacuum of 0.095MPa for 15 minutes, then mature at room temperature for 24 hours, bake at 120-130°C for 25 minutes, and cool at room temperature for 12 hours to obtain PVC plastisol .

[0038] Wherein the PVC paste resin is a microsuspension polymeric resin (PVC paste resin (TPM-31), industrial grade, Xinjiang Tianye) of a degree of polymerization of 1300, and the vinyl chloride-vinegar copolymer paste resin is a m...

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Abstract

The invention discloses environment-friendly low-temperature curing PVC plastisol and a preparation method thereof. The environment-friendly low-temperature curing PVC plastisol uses PVC paste resin, chloride vinyl acetate copolymerized paste resin, a plasticizer, a heat stabilizer, an adhesion promoter, BPU-Si, filler, a thixotropic agent, CaO, a viscosity reducer and the like as raw materials. The tensile strength of the prepared PVC plastisol can be up to 6-8 MPa, and the elongation at break can be up to 210%-270%. The adopted plasticizer is the novel environment-friendly plasticizer and has the advantages of being biodegradable, low in volatility, high in plastifying effect and the like. Under the synergistic effect of end-capped polyurethane and an adhesion promoter, the plastifying temperature (120-130 DEG C) of the plastisol can be effectively reduced, and the mechanical properties, elasticity and adhesion of the PVC plastisol are remarkably improved.

Description

technical field [0001] The invention relates to an environment-friendly low-temperature curing PVC plastisol and a preparation method thereof. Background technique [0002] PVC plastisols are widely used in some important commercial products, such as safety floors in the automotive industry, corrosion and stone chip coatings, synthetic leather products and sealants for instrument panels; vinyl-coated wallpapers and fabric exterior coatings tarpaulins and advertising banners; stadium roofs. [0003] At present, the preparation of PVC plastisol mostly uses traditional ortho-phthalic plasticizers. Ophthalmic plasticizers can cause cancer due to the benzene ring in their structure, and have toxicity problems. At the same time, the mechanical properties of PVC plastisol products are generally not high. Generally, the tensile strength is only 2-3MPa, and the elongation at break is only 160%- 210%, which limits its application in the field of commercial products. The curing temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L75/06C08L77/00C08L61/28C08L63/00C08L9/02C08K13/02C08K5/01C08K5/11C08K3/36C08K3/26
CPCC08L27/06C08K2003/2206C08K2003/265C08K2201/011C08L2205/025C08L2205/035C08L77/00C08L75/06C08K13/02C08K5/01C08K5/11C08K3/36C08K3/26C08K3/22C08L61/28C08L63/00C08L9/02
Inventor 杨建军陈鑫吴庆云吴明元张建安
Owner ANHUI UNIVERSITY
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