Whisker modified polypropylene (PP) composite material and preparation method thereof

A composite material and polypropylene technology, applied in the polymer field, can solve the problems of warping and deformation of parts, restricting the wide application of whisker-modified polypropylene materials, and having a large difference in shrinkage rate, so as to avoid warping and deformation, and achieve good results. Rigidity and toughness, the effect of meeting dimensional assembly requirements

Inactive Publication Date: 2015-12-02
ORINKO NEW MATERIAL CO LTD
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whisker material is a kind of fibrous single crystal, which has a smaller particle size and a larger aspect ratio. The shrinkage rate of the polypropylene material modified by the whisker is quite different in each direction, which leads to a large difference in the

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
  • Whisker modified polypropylene (PP) composite material and preparation method thereof
  • Whisker modified polypropylene (PP) composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to better understand the present invention, the present invention will be further described below in conjunction with specific examples.

[0030] The models of nucleating agents in Examples 1-5 are Milliken Company HPN-20E, HPN-04E, HPN-68L. The antioxidant is selected from antioxidant 1076, antioxidant 168 or antioxidant 3114; the light stabilizer is selected from light stabilizer UV-3808 or light stabilizer UV-703; the ultraviolet absorber is ultraviolet absorber UV-2908.

[0031] In the embodiment, the twin-screw extruder is selected to be provided with two vacuuming places, one of which is located between the conveying section and the melting section, and the other is located in the metering section. The screw aspect ratio of the twin-screw extruder is 40-50:1, the screw speed is 200-500r / min, and the temperature of the twin-screw extruder is 190-230°C.

[0032] According to the whisker-modified polypropylene composite material in each embodiment in the fo...

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 whisker modified polypropylene (PP) composite material. The PP composite material is prepared from 45-87 parts of PP, 10-40 parts of whiskers, 0.5-2 parts of nucleating agent, 3-15 parts of toughening agent, 1-3 parts of compatilizer and 0.1-2 parts of other additives, wherein the whiskers are at least one of magnesium oxide whiskers, basic magnesium sulfate whiskers and magnesium carbonate whiskers. By adding the nucleating agent and the whiskers, such as magnesium oxide, the prepared PP composite material has smaller difference of contractility in each direction, has the characteristic of isotropy, has the effect of overcoming the defect of warping deformation of products caused by non-uniformity of contraction, meets the dimensional assembling requirements of parts and has the effect of extending the application range of the whisker modified material.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a whisker-modified polypropylene composite material and a preparation method thereof. Background technique [0002] Whisker-modified polypropylene has been widely researched and applied in automobiles and other fields due to its light weight, high strength, excellent high temperature resistance and good mechanical strength. At present, whisker-modified polypropylene has a mature technology in China, and there are many research reports on the physical and chemical properties of whisker-modified polypropylene. Controlling the shrinkage of polypropylene modified materials is an important aspect of polypropylene modification. However, there are relatively few studies on the shrinkage isotropy of whisker-modified polypropylene. The characteristic of isotropic shrinkage can not only guarantee product quality, but also has great significance for the popularization and use of polypro...

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): C08L23/12C08L23/04C08L51/06C08L25/04C08K13/04C08K7/08
CPCC08L23/12C08K2201/014C08L2205/02C08L2205/03C08L2205/035C08L23/04C08L51/06C08K13/04C08K7/08C08L25/04
Inventor 王刚李荣群闫溥李停停王世君
Owner ORINKO NEW MATERIAL CO LTD
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