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

Modified polyvinyl acetate emulsion, preparation method and uses thereof

A polyvinyl acetate, emulsion technology, used in textiles and papermaking, graft polymer adhesives, adhesive types, etc., to achieve the effect of improving penetration speed and excellent mechanical properties

Inactive Publication Date: 2018-10-09
JUSHI GRP CO
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems described above

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modified polyvinyl acetate emulsion, preparation method and uses thereof
  • Modified polyvinyl acetate emulsion, preparation method and uses thereof
  • Modified polyvinyl acetate emulsion, preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Weigh each component by mass percentage, wherein, the protective colloids are three kinds of grades BP-20, BP-17 and BF-17, the emulsifier A uses the non-ionic emulsifier of Emcol EO-50, and the emulsifier B Anionic emulsifier SM-618 was used.

[0065] Each component is carried out the preparation of modified polyvinyl acetate emulsion as follows:

[0066] 1S Add 3g BP-20, 3g BP-17, 3g BF-17 and 100g dispersion medium into the reaction vessel, raise the temperature to 90°C, after the polyvinyl alcohol is completely dissolved, cool down to 60°C, where the dispersion medium is water;

[0067] 2S add 3g emulsifier A and 4g emulsifier B and 0.3g NaHCO to the reaction vessel 3 , after completely dissolving, add 15g of vinyl acetate monomer and heat up to 68°C;

[0068] 3S will be 0.4g (NH 4 ) 2 S 2 o 8 Dissolve in 15g of water to prepare the initiator solution, pipette 3g of the initiator solution into the reaction vessel for the first time, then add 0.6g every 15 minu...

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

PropertyMeasurementUnit
Acid valueaaaaaaaaaa
Particle sizeaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a modified polyvinyl acetate emulsion, which comprises a vinyl acetate monomer, a dispersion medium, a protection colloid, an emulsifier, an initiator, a pH value adjuster and an internal plasticizer, wherein the internal plasticizer is unsaturated polyester, and the emulsifier is the mixture of a nonionic emulsifier and an anionic emulsifier. According to the present invention, with the modified polyvinyl acetate emulsion, the plasticizer migration and other related technical problems can be effectively solved, the mechanical property of the glass fiber mat and the penetration speed to the resin can be effectively improved, the performance is excellent, and the production cost is reduced. The invention further provides a preparation method and uses of the modified polyvinyl acetate emulsion.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a modified polyvinyl acetate emulsion, a preparation method and application. Background technique [0002] Glass fiber chopped strand mat is an important reinforcing material for FRP composite materials. It cuts the chopped strands to a fixed length, spreads them randomly and non-directionally into a strand mat surface with uniform thickness, sprays the binder on it, and dries and cools it. become. Emulsion felt refers to a chopped strand felt made of emulsion binder, which has the following advantages: no yarn drop, very suitable for mechanical molding process; good mold adhesion, easy to degassing, large tension without Directionality is beneficial to the processing of subsequent processes. Therefore, emulsion felt is widely used in national defense, transportation, transportation, chemical industry, building materials, etc. [0003] At present, the existing glass fiber binder still...

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): C08F283/01C08F218/08C08F2/30C08F2/26C08G63/676C09J151/08D04H1/587
CPCC08F2/26C08F2/30C08F283/01C08G63/676C09J151/08D04H1/587C08F218/08
Inventor 汪如发嵇杰李翠红李春锋
Owner JUSHI GRP CO
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