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

A kind of porous polyvinyl chloride foam ball and preparation method thereof

A technology of polyvinyl chloride foam and polyvinyl chloride, applied in chemical instruments and methods, and other chemical processes, can solve problems such as high cost, difficult control conditions, and low output, and achieve high porosity, economical preparation method, and development The effect of strong porosity

Active Publication Date: 2018-08-24
HUAQIAO UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The porous PVC film prepared by this method has uniform pore size and regular pore structure arrangement, but there are problems such as difficult industrial control of control conditions, low output, and high cost.

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
  • A kind of porous polyvinyl chloride foam ball and preparation method thereof
  • A kind of porous polyvinyl chloride foam ball and preparation method thereof
  • A kind of porous polyvinyl chloride foam ball and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 1.5g of polyvinyl chloride powder and add it to 40mL of cyclohexanone, stir at room temperature for 30min until the polyvinyl chloride is completely dissolved to obtain a polyvinyl chloride solution; then put this polyvinyl chloride solution and 1g of potassium chloride crystal into a planetary Carry out ball milling in a ball mill; the quality of the ball milling medium used is 500g, and the particle size is 0.05-10mm; the speed of the ball mill is set at 200r / min, and the ball milling time is 20h; after the ball milling, take out the mixture of polyvinyl chloride solution and potassium chloride , drop it into the ethanol solution with a syringe with a volume of 10mL, and stir it with a magnetic stirrer at a stirring speed of 500r / min while adding it dropwise; then take it out and immerse it in distilled water to clean the porogen; It was taken out and drained at room temperature for 2 hours, then placed in a vacuum drying oven, and dried at room temperature for 2...

Embodiment 2

[0033]Weigh 9g of polyvinyl chloride powder and add it to 200mL of N,N-dimethylformamide (DMF), stir at room temperature for 30min until the polyvinyl chloride is completely dissolved to obtain a polyvinyl chloride solution; then mix this polyvinyl chloride solution with 120g Sodium chloride crystals are put into a stirring ball mill for ball milling; the quality of the ball milling medium used is 4000g, and the particle size is 0.05-10mm; the speed of the ball mill is set at 400r / min, and the ball milling time is 2h; Take out the mixture of solution and sodium chloride, add it dropwise into distilled water with a syringe with a volume of 50mL, and stir with a magnetic stirrer at the same time as adding dropwise, with a stirring speed of 100r / min; after cleaning the porogen, add It was taken out and drained at room temperature for 2 hours, then placed in a vacuum drying oven, and dried at 40° C. for 18 hours to obtain porous polyvinyl chloride foam balls of the present inventio...

Embodiment 3

[0039] Weigh 6g of polyvinyl chloride pellets and add them to 70mL of cyclohexanone, stir at room temperature for 30min until the polyvinyl chloride is completely dissolved to obtain a polyvinyl chloride solution; then put the polyvinyl chloride solution and 14g of ammonium bicarbonate crystals into a stirring Carry out ball milling in a ball mill, the mass of the ball milling medium used is 1000g, the particle size is 0.05-10mm; the speed of the ball mill is set at 150r / min, and the ball milling time is 5h; after the ball milling, take out the mixture of polyvinyl chloride solution and ammonium bicarbonate , drop it into distilled water with a disposable dropper with a volume of 5mL, and stir it with a magnetic stirrer at the same time as the dropwise addition, and the stirring speed is 300r / min; after washing the porogen, take it out and drain it at room temperature for 2h , and then placed in a vacuum oven, dried at 50° C. for 10 h to obtain the porous polyvinyl chloride foa...

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
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

The invention provides a porous polyvinyl chloride foam ball which has a perforated structure and is high in porosity and oil adsorptivity and a preparation method for the porous polyvinyl chloride foam ball, and belongs to the technical field of porous polymer materials. The porous polyvinyl chloride foam ball provided by the invention has the advantages of being perforated in structure, high in specific surface area, light in weight, strong in adsorption capacity, excellent in acid and alkali resistance and the like, and has potential application value in the field of environmental protection, chemistry and the like. The preparation method provided by the invention comprises: (1) uniformly mixing a polyvinyl chloride solution and a pore-foaming agent by virtue of a mechanical ball-milling method; and (2) preparing the porous polyvinyl chloride foam material by virtue of a phase separation precipitation method. Compared with other porous polymer materials, the porous polyvinyl chloride foam ball prepared by the method has the advantages that (1) the pore diameter is controllable, the specific surface area is high and the pore diameter is uniformly distributed; (2) the cost is relatively low and the price is low; (3) the preparation process is simple and energy-saving and environmental-friendly; and (4) the ball has a relatively strong oil adsorbing capacity, and the oil adsorbing rate can reach 1000%.

Description

【Technical field】 [0001] The invention relates to a polyvinyl chloride foam ball with an open-pore structure, high porosity and high oil absorption rate and a preparation method thereof, belonging to the technical field of porous polymer materials. 【Background technique】 [0002] With the development of human industrialized society, the water resources that human beings depend on for survival are becoming more and more scarce, and water pollution is becoming more and more serious. Because water-insoluble pollutants are produced in industrial production and daily life, especially in the process of transportation and storage of crude oil and crude oil refining products, a large amount of oily pollutants caused by leakage will pollute a large area of ​​water. The ecological environment has caused extremely serious impacts. Therefore, among many water pollutants, oil and oily compounds have become one of the most important and serious pollutants. It is quite difficult to contro...

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 Patents(China)
IPC IPC(8): C08J9/26C08L27/06C09K3/32
Inventor 陈国华陈韩莉
Owner HUAQIAO UNIVERSITY
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