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

Soft polyvinyl chloride-based copolymer, method for producing soft polyvinyl chloride-based copolymer, composition comprising soft polyvinyl chloride-based copolymer, and resin product produced from composition

A vinyl chloride-based resin and vinyl chloride technology, applied in the field of resin products, including its composition, soft vinyl chloride-based copolymer, and its preparation method, can solve the problem of no industrial application value, low industrial practical value, It is difficult to achieve self-plasticization and other problems, and achieve the effects of avoiding the performance degradation of resin products, good biocompatibility, and excellent mechanical properties

Active Publication Date: 2021-03-30
BEIJING UNIV OF CHEM TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology has the following problems: the reaction temperature is as high as 180°C, and it is easy to cause decomposition of PVC
Although the living polymerization method is suitable for adjusting the structure of the resulting copolymer resin, this technology has high requirements on the production process, high cost and no industrial application value
[0011] As mentioned above, most of the currently disclosed technologies are only in the stage of scientific research, and the industrial practical value is not high; while the technologies suitable for industrial production are often difficult to achieve excellent Self-plasticizing and poor control over product structure

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
  • Soft polyvinyl chloride-based copolymer, method for producing soft polyvinyl chloride-based copolymer, composition comprising soft polyvinyl chloride-based copolymer, and resin product produced from composition
  • Soft polyvinyl chloride-based copolymer, method for producing soft polyvinyl chloride-based copolymer, composition comprising soft polyvinyl chloride-based copolymer, and resin product produced from composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0124]

[0125] The preparation method of the soft vinyl chloride copolymer of the present invention is the preparation method of the above soft vinyl chloride copolymer, which comprises: comprising vinyl chloride, the monomer represented by the above formula (1) and the optional above formula The raw materials of the monomers shown in (2) are copolymerized.

[0126] The details of vinyl chloride, the monomer represented by formula (1), the monomer represented by formula (2) and other monomers have been described above, and will not be repeated here.

[0127] Examples of copolymerization reactions of the present invention include, without limitation, block polymerization, random polymerization, graft polymerization, gradient polymerization. Among them, random polymerization is preferable from the viewpoint of expressing the technical effect of the present application more favorably, that is, the molecular chain of the flexible vinyl chloride copolymer of the present inventio...

Embodiment 1

[0184] In a stainless steel micro-reactor with an internal volume of 200ml of stirring blades, 100g of deionized water, 10.4g of 2 mass % PVA aqueous solution, 0.042g of hydroxypropylmethylcellulose, 0.05g of azobisisobutyronitrile, 27g of polypropylene glycol monomethacrylate with a molecular weight of 375 (PPGMA-375, in the case of x=5 in the formula (1)), was filled with nitrogen for 5 minutes to replace the air in the reactor. Then feed VC monomer 27g in the reactor. After pre-stirring for 60 minutes, the temperature was raised to 70°C to start polymerization. It should be noted that the monomer feeding mass ratio VC:PPGMA-375=50:50, and the polymerization reaction time was 8.5 hours. After the completion of the polymerization reaction, unreacted VC monomer was reclaimed, and the polymerization product was alternately washed with a large amount of deionized water and ethanol to obtain 48.2 g of the vinyl chloride copolymer of white solid particles, and its composition: rel...

Embodiment 2

[0186] Change the feed mass ratio of VC and PPGMA-375 to be VC:PPGMA-375=60:40 and the polymerization reaction time is 8.0 hours, except that, obtain the vinyl chloride series copolymerization of white solid particles in the same way as in Example 1 49.5 g of the product, the composition: the content of the structural unit (a) was 60.4% by mass, and the content of the structural unit (b) was 39.6% by mass based on the total mass of the vinyl chloride-based copolymer.

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
glass transition temperatureaaaaaaaaaa
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a soft polyvinyl chloride-based copolymer, a method for preparing the soft polyvinyl chloride-based copolymer, a composition comprising the soft polyvinyl chloride-based copolymer, and a resin product made from the composition. The soft vinyl chloride-based copolymer comprises a structural unit (a) based on vinyl chloride, a structural unit (b) based on a monomer represented by a formula (1) of CH2=CR1COO(R2O)xR3, and optionally a structural unit (c) based on a monomer represented by a formula (2) of CH2=CR4COOR5, and has a tensile elongation at break of more than 140% .

Description

technical field [0001] The invention relates to the field of vinyl chloride resin synthesis, in particular to a soft vinyl chloride copolymer, a preparation method thereof, a composition comprising the same and a resin product made from the composition. Background technique [0002] Polyvinyl chloride (PVC) resin is formed by free radical polymerization of vinyl chloride monomer (VC). It is one of the five general-purpose resins in synthetic materials. Its output is second only to polyethylene and polypropylene, ranking third in the world for general-purpose plastics. . Due to its excellent chemical resistance, chemical stability, thermoplasticity and low manufacturing cost, PVC resin is widely used in construction, water supply, daily use and biomedical fields. [0003] Due to the relatively large polarity of the PVC molecular chain, the movement of the molecular chain is restricted, which increases the processing difficulty of PVC resin. Therefore, plasticizers should be...

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): C08F214/06C08F220/28C08F220/18C08F2/18C08L27/06
CPCC08F214/06C08F2/18C08L27/06C08L2203/02C08L2201/10
Inventor 杨万泰张先宏宋长统马育红
Owner BEIJING UNIV OF CHEM TECH
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