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

Polychloroethylene / organic modified sheet silicate nano-composite material

A technology of nanocomposite materials and layered silicate, which is applied in the field of nanocomposite materials and its preparation, can solve the problems of no significant improvement in the performance of PVC, achieve the effects of increasing added value, simple production process, and improving thermal stability

Inactive Publication Date: 2008-11-12
SICHUAN UNIV
View PDF0 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this system, montmorillonite is only used as the carrier of the plasticizer DOP, and there is no bonding between the clay surface and the polymer matrix, so the performance of PVC has not been significantly improved.

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
  • Polychloroethylene / organic modified sheet silicate nano-composite material
  • Polychloroethylene / organic modified sheet silicate nano-composite material
  • Polychloroethylene / organic modified sheet silicate nano-composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Mix 100g of PVC resin with 3g of organotin stabilizer, 1.0g of lubricant, and 2g of other additives in a high-speed mixer, discharge at about 110°C, and then mix the mixture with 1g of unmodified sodium montmorillonite (MMT) Melt and blend on a twin-roller plastic mixer at a temperature of about 170°C. After 8 minutes, the sheet is produced, and then molded into 1mm and 4mm plates on a semi-automatic pressure molding machine at about 185°C, and cut into samples for use.

[0039]The interlayer spacing of montmorillonite in the sample was measured by WAXD, and the samples were analyzed by scanning electron microscope and transmission electron microscope. The results showed that most of the sodium-based montmorillonite was dispersed in the PVC matrix in the form of agglomerated particles, indicating that the PVC macromolecules were not Intercalation into the montmorillonite layer, sodium montmorillonite and PVC just form a common blended composite material. The performance...

Embodiment 2

[0043] Add 5g of PVC resin, 10g of unmodified sodium montmorillonite (MMT) and 15g of organic modifier polyoxyethylene-polyoxypropylene copolymer (EP) into 50 grams of tetrahydrofuran solvent, stir for about 2h; then evaporate tetrahydrofuran solvent to obtain organically modified montmorillonite.

[0044] Mix 100g of polyvinyl chloride resin with 3g of organotin stabilizer, 0.5g of lubricant, and 1.0g of other additives in a high-speed mixer, discharge at about 110°C, and then mix the mixture with the above-mentioned organic modified montmorillonite 2.5g is melted and blended on a twin-roller plastic mixer at a temperature of about 170°C, and the sheet is released after 8 minutes, and then molded into 1mm and 4mm plates on a semi-automatic pressure molding machine at 185°C, and cut into samples for use.

[0045] WAXD was used to measure the layer spacing of montmorillonite in the material, and the samples were analyzed by scanning electron microscope and transmission electron...

Embodiment 3

[0049] Dilute the coupling agent KH-560 and ethanol by 1:10, take the coupling agent (the amount is 1% of the weight of illite) and illite in a high-speed mixer, stir and blend them, and put them in an oven at about 100°C to dry for about 1h, discharge and set aside.

[0050] Mix 100g of polyvinyl chloride resin with 5g of organotin stabilizer, 2g of lubricant, and 2g of other additives in a high-speed mixer, discharge at about 110°C, and then mix the mixture with 3g of coupling agent modified illite Melt and blend on a twin-roller plastic mixer with a temperature of about 170°C. After 8 minutes, the sheet is released, and then molded into 1mm and 4mm plates on a semi-automatic pressure molding machine at about 185°C, and cut into samples for use.

[0051] The layer spacing of illite in the material was measured by WAXD, and the samples were analyzed by scanning electron microscope and transmission electron microscope. The dispersibility of stone in PVC matrix, the performanc...

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 provides a polyvinyl chloride / organic modified phyllosilicate nanophase composite material and a method for preparing the same. The compositions of the raw materials of the composite material mainly comprise polyvinyl chloride substrates, organic modified phyllosilicates, heat stabilizer, lubricant and processing agent. The composite material is prepared by adoption of the fusing and mixing technology. Compared with a polyvinyl chloride / phyllosilicate composite material in the prior art, the polyvinyl chloride / organic modified phyllosilicate nanophase composite material provided by the invention obviously improves the toughness, the strength and the modulus of the material and also greatly improves the thermal stability, the dimensional stability, the age resistance and the barrier property. Moreover, the polyvinyl chloride / organic modified phyllosilicate nanophase composite material also has good flame-retarding and smoke-inhibiting properties. The polyvinyl chloride / organic modified phyllosilicate nanophase composite material has simple manufacturing technique, convenient operation and control, stable quality, high production efficiency, low production cost, wide application range and wide industrialization and market prospect.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride composite materials, and more specifically relates to a nanocomposite material using polyvinyl chloride and layered silicate as raw materials and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardancy, corrosion resistance, excellent comprehensive performance, low price, and wide source of raw materials, but PVC also has disadvantages such as low impact strength, poor thermal stability, and poor fluidity. limit its use to a certain extent. People often use methods such as adding modifiers, fillers, elastomers, plasticizers, heat stabilizers, processing aids and flow modifiers to improve the performance of PVC. [0003] Studies have shown that when layered silicate is blended with polyvinyl...

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): C08L27/06C08K9/04C08K13/06
Inventor 郭少云李光照陈光顺
Owner SICHUAN UNIV
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