Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-temperature plasticizing type PVC plastic colloidal sols and method of producing the same

A plastisol, PVC resin technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of high drying room temperature, high plasticizing temperature, unfavorable energy saving and emission reduction in automobile production plants, etc., and reduce the drying room temperature. , the effect of reducing the plasticizing temperature

Inactive Publication Date: 2009-04-08
匡建钢
View PDF0 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC plastisol is widely used in the automobile industry, and its typical products are PVC anti-stone impact vehicle undercoating and PVC weld seam sealant. The plasticizing temperature required by PVC plastisol products on the market is mostly around 140°C, and high-end products The plasticizing temperature can be as low as about 130°C, and the higher the plasticizing temperature, the higher the temperature of the drying room in the production process of the automobile production plant, which is not conducive to the energy saving and emission reduction of the automobile production plant

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of closed polyurethane prepolymer: Add 50 parts of diluent to the three-neck reactor, heat up to 75°C while stirring, then add 100 parts of polyisocyanate, and then slowly add 250 parts of polyether polyol to react for 3 hours Afterwards, slowly add 10 parts of dimethylpyrazoles and continue to react for 2 hours;

[0015] Preparation of low-temperature plasticized PVC plastisol: Add 10 parts of closed polyurethane prepolymer and 5 parts of low-molecular polyamide resin to 200 parts of plasticizer and disperse evenly, then add the rest of the components and disperse evenly , and then put the uniformly dispersed material into a biaxial stirrer and stir for 30 minutes, and vacuumize while stirring until the vacuum degree is 0.09MPa, then place it at room temperature for 24 hours to mature the PVC plastisol, and then filter;

[0016] Among them, the remaining components include 100 parts of PVC resin paste, 5 parts of heat stabilizer, 150 parts of nano-active ca...

Embodiment 2

[0018] Preparation of closed polyurethane prepolymer: Add 300 parts of diluent to the three-neck reactor, heat up to 77°C while stirring, then add 250 parts of isophorone diisocyanate, and then slowly add 500 parts of polyether polyol After reacting for 3.5 hours, slowly add 110 parts of dimethylpyrazole and 1 part of catalyst to continue the reaction for 2.5 hours;

[0019] Preparation of low-temperature plasticized PVC plastisol: Add 55 parts of closed polyurethane prepolymer and 22 parts of low-molecular polyamide resin to 350 parts of plasticizer and disperse evenly, then add the rest of the components and disperse evenly , and then put the uniformly dispersed material into a biaxial stirrer and stir for 30 minutes, and vacuumize while stirring until the vacuum degree is 0.09MPa, then place it at room temperature for 24 hours to mature the PVC plastisol, and then filter;

[0020] Among them, the remaining components include 300 parts of PVC resin paste, 150 parts of chlori...

Embodiment 3

[0022] Preparation of closed polyurethane prepolymer: Add 500 parts of diluent to the three-neck reactor, heat up to 80°C while stirring, then add 400 parts of isophorone diisocyanate (IPDI) derivatives, and then slowly add After 800 parts of polyether polyols were reacted for 4 hours, slowly add 200 parts of dimethylpyrazole and 2 parts of catalysts to continue the reaction for 3 hours;

[0023] Preparation of low-temperature plasticized PVC plastisol: Add 100 parts of closed polyurethane prepolymer and 40 parts of low-molecular-weight polyamide resin to 500 parts of plasticizer and disperse evenly, then add the rest of the components and disperse evenly , and then put the uniformly dispersed material into a biaxial stirrer and stir for 30 minutes, and vacuumize while stirring until the vacuum degree is 0.09MPa, then place it at room temperature for 24 hours to mature the PVC plastisol, and then filter;

[0024] Among them, the remaining components include 500 parts of PVC re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a low-temperature plasticization PVC plastisol which can effectively reduce the plasticization temperature of PVC plastisol and ensure the adhesive force of the PVC plastisol on an electrophoretic paint plate; the components of the low-temperature plasticization PVC plastisol comprise a plasticizer, PVC resin paste, chloride vinyl acetate copolymer, a heat stabilizer, nano activated calcium carbonate, a thixotropic agent, a low molecular polyamide resin, a viscosity depressant and a pigment; the PVC plastisol is characterized in that: the components of the PVC plastisol also comprise a closed polyurethane prepolymer, wherein, polymethylene polyisocyanate and polyol are polymerized to obtain quasi-prepolymer with an end group of -NCO, and the end of the quasi-prepolymer is sealed by a sealing agent to obtain the closed polyurethane prepolymer. The preparation method of the low-temperature plasticization PVC plastisol comprises the steps: the closed polyurethane prepolymer and the low molecular polyamide resin are added into the plasticizer and evenly dispersed in the plasticizer, and then other components are added into the plasticizer and evenly dispersed in the plasticizer to obtain an evenly-dispersed material which is put into a double shaft agitator and agitated for 30min; vacuumizing is carried out while blending the material until the degree of vacuum is degree of vacuum, and then the material is placed for 24h at a normal temperature for the curing of the PVC plastisol and finally filtered.

Description

technical field [0001] The invention relates to the field of PVC plastisol preparation, in particular to a low-temperature plasticized PVC plastisol and a preparation method thereof. Background technique [0002] PVC plastisol is widely used in the automobile industry, and its typical products are PVC anti-stone impact vehicle undercoating and PVC weld seam sealant. The plasticizing temperature required by PVC plastisol products on the market is mostly around 140°C, and high-end products The plasticizing temperature can be as low as about 130°C, and the higher the plasticizing temperature, the higher the temperature of the drying room in the production process of the automobile production plant, which is not conducive to the energy saving and emission reduction of the automobile production plant. Contents of the invention [0003] In view of the above problems, the present invention provides a low-temperature plasticizing type PVC plastisol, which can effectively reduce th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L27/06C08L75/04C08K13/02C09D127/06C09D175/04C09D7/12
Inventor 匡建钢
Owner 匡建钢
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com