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

Low-gloss polypropylene composite material and preparation method thereof

A technology of composite materials and polypropylene, which is applied in the field of composition and preparation of low-gloss polypropylene composite materials, can solve problems such as the decline of mechanical properties and impact properties of materials, affect the comprehensive performance of composite materials, reduce the surface gloss of composite materials, and achieve production low cost effect

Active Publication Date: 2012-07-04
SHANGHAI PRET COMPOSITES
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been some reports on reducing the glossiness of polypropylene composite materials. The application number is CN200710171710.0, which discloses a method for reducing the surface glossiness of composite materials by adding inorganic silica, but to a certain extent, the shear of the screw will cause filler The destruction of its own structure affects the comprehensive performance of composite materials
The application number is CN200810207904.6, which discloses a method for reducing the surface gloss of composite materials by adding inorganic filler wollastonite. The decrease in gloss is more obvious than that of talcum powder and calcium carbonate, but the increase of inorganic filler will change the original material to a certain extent. The mechanical properties such as impact properties will decrease

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
  • Low-gloss polypropylene composite material and preparation method thereof
  • Low-gloss polypropylene composite material and preparation method thereof
  • Low-gloss polypropylene composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with embodiment, the present invention is described in further detail:

[0030] In the composite material formulations of Examples and Comparative Examples, the polypropylene is a block copolymer polypropylene produced by Shanghai Petrochemical, and its trade name is M700R. The inorganic filler used is 1250 mesh talcum powder with an average particle size of 10 microns. The toughening agent POE used is the linear ethylene-octene copolymer that DuPont produces, and trade name is Engage 8180, and its density is 0.863g / cm 3 , the melt index is 0.5g / 10min (test condition: 190°C×2.16kg). The organic matting agent used is a cross-linked copolymer of styrene-acrylonitrile produced by Crompton Company of the United States, and its trade name is Blendex BMAT. Described main antioxidant is the DSTP that British ICE company produces, and trade name is Negonox DSTP, and chemical name is octadecyl thiodipropionate, and 3114 that Ciba company produces, and trad...

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
densityaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses a low-gloss polypropylene composite material which is prepared from the following raw materials by weight percent: 45-99% of polypropylene, 0-42% of inorganic filling material, 0-10% of flexibilizer POE (polyolefin elastomer), 0.5-4% of organic delustering agent, 0.1-2% of antioxidant and 0-3% of other additives. The preparation method comprises the following steps: weighing the raw materials in proportion; mixing polypropylene, the inorganic filling material, the flexibilizer, the organic delustering agent, the antioxidant, a light stabilizing agent and the other additives in a high-speed stirrer; putting the obtained mixture in a two-screw extruder for melt extrusion; and after extrusion, cooling, drying and grain-sized dicing to obtain a finished product. According to the invention, a method of adding a proper amount of styrene-acrylonitrile crosslinking copolymer into polypropylene is adopted, thus the prepared polypropylene composite material has the characteristic of low gloss, and simultaneously the polypropylene composite material basically has original physical property. The low-gloss polypropylene composite material disclosed by the invention is suitable for being applied to inner decorative materials for home appliances, automobiles and the like.

Description

technical field [0001] The invention relates to a composition of a low-gloss polypropylene composite material and a preparation method thereof, belonging to the technical field of polymer modification and processing. Background technique [0002] Polypropylene (PP) is currently widely used in the automotive industry, especially as interior and exterior decoration materials for automobiles, because of its good processing performance and physical and chemical properties, as well as light weight and low price. With the development of the automobile industry, people have put forward higher requirements for automobiles: light weight, energy saving, aesthetics, safety, environmental protection, etc., especially the requirements for comfort and safety in the cab are getting higher and higher. If the gloss of the cockpit interior parts is high, there will be strong light reflection, which will affect the comfort of the driver. Therefore, automotive interior parts need to have a low...

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): C08L53/00C08L23/08C08L25/12C08K13/02B29B9/06B29C47/92B29C48/92
Inventor 高翔张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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