Surface treatment method for novel crystal whiskers applied to PVC

A surface treatment and whisker technology, applied in the field of new whisker surface treatment, can solve the problem of rarely using whiskers, and achieve the effect of improving mechanical properties, thermal stability and high practicability

Inactive Publication Date: 2016-08-17
QINGHAI UNIVERSITY
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, in situ emulsion polymerization has become a common method for modifying nanoparticles, however, it is rarely used in whiskers

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
  • Surface treatment method for novel crystal whiskers applied to PVC
  • Surface treatment method for novel crystal whiskers applied to PVC

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A novel whisker surface treatment method applied in PVC, comprising steps as follows:

[0038] (1) Firstly, the whiskers are dried in an oven to remove possible physical adsorption and weak chemical adsorption. According to the volume ratio of 1:20, γ-methacryloxypropyltrimethoxysilane was dissolved in ethanol solution (ethanol: water = 1:10) for hydrolysis, and finally the whiskers were dissolved in a mass ratio of 1:50. Disperse in an ethanol solution containing γ-methacryloxypropyltrimethoxysilane, heat the reaction system to 80°C, stir and reflux for 12 hours, the stirring speed of stirring and reflux is 250r / min, and finally wash the whiskers , to prepare calcium carbonate whiskers with double bonds on the surface.

[0039] (2) the calcium carbonate whisker that has double bond on the surface obtained in step (1), with potassium persulfate (accounting for 1.5wt.% of whisker quality), sodium dodecylsulfonate (accounting for reaction solution quality 0.15wt.%), met...

Embodiment 2

[0043] A novel whisker surface treatment method applied in PVC, comprising steps as follows:

[0044](1) Firstly, the whiskers are dried in an oven to remove possible physical adsorption and weak chemical adsorption. According to the volume ratio of 1:20, γ-methacryloxypropyltrimethoxysilane was dissolved in ethanol solution (ethanol: water = 1:10) for hydrolysis, and finally the whiskers were dissolved in a mass ratio of 1:50. Disperse in an ethanol solution containing γ-methacryloxypropyltrimethoxysilane, heat the reaction system to 80°C, stir and reflux for 12 hours, the stirring speed of stirring and reflux is 250r / min, and finally wash the whiskers , to prepare calcium carbonate whiskers with double bonds on the surface.

[0045] (2) the calcium carbonate whisker with double bond on the surface obtained in step (1), with potassium persulfate (accounting for 2wt.% of whisker quality), sodium dodecylsulfonate (accounting for 2wt.% of reaction solution quality) 0.3wt.%), m...

Embodiment 3

[0049] A novel whisker surface treatment method applied in PVC, comprising steps as follows:

[0050] (1) Firstly, the whiskers are dried in an oven to remove possible physical adsorption and weak chemical adsorption. According to the volume ratio of 1:20, γ-methacryloxypropyltrimethoxysilane was dissolved in ethanol solution (ethanol: water = 1:10) for hydrolysis, and finally the whiskers were dissolved according to the mass ratio of 1:50. Disperse in an ethanol solution containing γ-methacryloxypropyltrimethoxysilane, heat the reaction system to 80°C, stir and reflux for 12 hours, the stirring speed of stirring and reflux is 250r / min, and finally wash the whiskers , to prepare calcium carbonate whiskers with double bonds on the surface.

[0051] (2) the calcium carbonate whisker that the surface that obtains in step (1) has double bond, and potassium persulfate (accounting for 4wt.% of whisker quality), sodium dodecylsulfonate (accounting for 4wt.% of reaction solution qual...

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
thicknessaaaaaaaaaa
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention provides a surface treatment method for novel crystal whiskers applied to PVC. The calcium carbonate crystal whiskers and a coupling agent with a double bond react to obtain modified crystal whiskers with the double bond on the surface, organic monomers are grafted on the surface through in-situ emulsion polymerization, and therefore compatibility between the whiskers and a PVC matrix is improved. The compatibility between the calcium carbonate whiskers and PVC is improved, and after PVC is filled with the modified crystal whiskers, mechanical property and thermal stability of the matrix can be improved.

Description

technical field [0001] The invention belongs to the technical field of whisker PVC compounding, and in particular relates to a novel whisker surface treatment method applied to PVC. Background technique [0002] Calcium carbonate whisker is a new type of micron-scale fiber material. The important thing is that calcium carbonate whisker is low in price and widely used. Adding calcium carbonate whisker to PVC matrix can reduce the cost price of the material and improve the material performance. [0003] In order to obtain composite materials with better comprehensive properties, it is very important to improve the interfacial bonding force between the matrix and the filler. When the matrix is ​​subjected to external stress, the filler with good interfacial adhesion with the matrix can effectively disperse the stress of the matrix, thereby improving the mechanical strength of the matrix. Therefore, it is very important to modify the surface of calcium carbonate whiskers. There...

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): C08L27/06C08K9/06C08K9/04C08K7/08
CPCC08K7/08C08K9/06C08K9/08C08L2201/08C08L27/06
Inventor 徐世爱崔嘉扬袁文津吕海棠
Owner QINGHAI UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap