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

Preparation method of polyvinyl chloride resin with high oil absorption rate

A technology of polyvinyl chloride resin and high oil absorption, applied in the field of preparation of polyvinyl chloride resin, can solve problems such as low oil absorption rate, and achieve the effects of high oil absorption rate, easy plasticization and thin resin film

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP
View PDF7 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method for preparing polyvinyl chloride resin with high oil absorption rate that increases resin voids and reduces film formation, so as to overcome the defect of low oil absorption rate in resin processing performance existing in the prior art

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
  • Preparation method of polyvinyl chloride resin with high oil absorption rate
  • Preparation method of polyvinyl chloride resin with high oil absorption rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Component:

[0024] Vinyl chloride 3.0kg

[0025] Deionized water 4.0kg

[0026] Dispersion system high alcoholysis degree polyvinyl alcohol (polymerization degree 1000, alcoholysis degree 80%, mass concentration 5.1%) / low alcoholysis degree polyvinyl alcohol ((polymerization degree 300, alcoholysis degree 45%, mass concentration 34% ) / hydroxypropyl methylcellulose (the degree of methyl substitution is 1.9, the content is 30%, the degree of hydroxypropyl substitution is 0.25, the content is 10% and the mass concentration is 2.9%), the ratio is 3:1:2, 0.05kg

[0027] Initiation system Di-(2-ethylhexyl) peroxydicarbonate / cumyl peroxyneodecanoate, the ratio is 3:1, 20% aqueous emulsion, 0.015kg

[0028] Functional Auxiliary C 5 Normal alkanes, the addition amount is 0.15kg

[0029] Terminator Diethylhydroxylamine, 0.075g

[0030] Operation method:

[0031] Rinse the 10L polymerization kettle, apply the anti-sticking agent and rinse, then vacuumize, suck in the deioni...

Embodiment 2

[0033]Repeat Example 1, the difference is the functional auxiliary C in the component 5 Normal alkanes, the addition amount is 0.30kg. The performance test results of the resin particles are shown in Table 1.

Embodiment 3

[0035] Repeat Example 1, the difference is that the functional auxiliary agent is C in the component 5 、C 6 、C 7 Compound alkanes, the ratio is 1:1:1, and the addition amount is 0.3kg. The performance test results of the resin particles are shown in Table 1.

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
degree of polymerizationaaaaaaaaaa
alcoholysis degreeaaaaaaaaaa
alcoholysis degreeaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method of polyvinyl chloride resin with high oil absorption rate, which is implemented by the following steps of: adding vinyl chloride, deionized water, an initiation system, a dispersion system and a function assistant into a polymerizer; under a certain polymerization temperature, reacting for a certain time, adding a terminator and then obtaining polyvinylchloride suspension; and removing an unreacted vinyl chloride monomer, centrifuging suspension, drying, and obtaining the polyvinyl chloride resin, wherein the function assistant is the mixture of several of C4-C10 nalkane and isoparaffin of the nalkane. By the method disclosed by the invention, the particle state of the polyvinyl chloride resin is improved, the interior of the obtained resin is loose and porous, so that the obtained resin has high voidage, uniform void distribution and high oil absorption rate.

Description

technical field [0001] The invention belongs to a preparation method of polyvinyl chloride resin, in particular to a preparation method with high oil absorption rate (or high plasticizer absorption rate). Background technique [0002] Polyvinyl chloride resin (PVC) is the resin with the second largest output in the world. Due to its low price and excellent performance, it has a wide range of applications. The resin can be synthesized by bulk method, emulsion method, and suspension method. In 2009, my country's PVC resin production capacity reached 17 million tons per year, of which the suspension method accounted for about 70-80%. Suspension polyvinyl chloride resin is under the action of dispersant and colloid preservation, the monomer is evenly dispersed in the continuous water phase by strong stirring, and the polymerization is initiated by peroxide or azo initiator at a certain temperature. Formed, the phase state is a typical heterogeneous precipitation polymerization,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08F114/06C08F2/20
Inventor 梁斌车万里鲍春伟朱卫东张立红袁锦慧张勇张磊王晶李静张学明
Owner CHINA PETROLEUM & CHEM CORP
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