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

Modified polypropylene material, preparation method and application thereof

A polypropylene material and polypropylene technology, applied in the field of modified polypropylene material and its preparation, can solve the problems of low melt elongation, low melt strength, floating fibers on the surface, etc., and achieve high melt elongation and fracture High elongation and less floating fibers

Active Publication Date: 2021-04-27
KINGFA SCI & TECH CO LTD
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the polyolefin materials suitable for blow molding and blister use are basically pure HDPE or PP resins. These resins can be molded well, but they still need to be improved in terms of heat resistance and strength.
In the industry, the high strength and high rigidity of glass fibers are usually used to improve product strength and heat resistance, but conventional glass fiber reinforced polypropylene materials have low melt strength, low melt elongation, surface floating fibers and poor toughness And other issues

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
  • Modified polypropylene material, preparation method and application thereof
  • Modified polypropylene material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7 and comparative example 1-7

[0039] Embodiment 1-7 and comparative example 1-7: preparation of modified polypropylene material

[0040] Weigh each component according to the formula content, and mix all components except the reinforcing fiber evenly, and then add the mixture to the main feeding system of the twin-screw extruder; at the same time, add the reinforcing fiber to the side feeding of the twin-screw extruder The modified polypropylene material is prepared through a twin-screw extruder to melt blend, extrude and granulate.

[0041] The position of the side feeding system of the extruder can be adjusted, and the reinforcing fiber can enter the extruder screw in the first to tenth zones, and can be added after the extruder die, and then directly combined with the polypropylene melt. By adjusting the position where the reinforcing fiber enters the screw of the extruder, the reinforcing fiber with different length and content distribution can be obtained.

[0042] Among them, the temperature of the ...

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
lengthaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified polypropylene material, a preparation method and application thereof. The modified polypropylene material comprises the following components in parts by weight: a, 20-80 parts of a polypropylene resin, b, 1-20 parts of a compatilizer, and c, 10-40 parts of reinforcing fibers, wherein the reinforcing fibers comprise a component I, a component II and a component III, the component I consists of reinforced fibers with the length of less than 0.1 mm and accounts for 10-20% of the reinforing fibers, the component II is composed of reinforced fibers with the length of 0.1 mm-0. 3mm and accounts for 50-75% of the number of the reinforcing fibers, and the component III is composed of reinforced fibers with the length of 0.4 mm-0. 8mm, and accounts for 5-40% of the number of the reinforcing fibers. According to the invention, by controlling the length and content distribution of the reinforcing fibers in the modified polypropylene material, compared with a glass fiber material with a conventional length (0.4-0.6 mm), the surface gloss is high, and floating fibers are few; elongation at break is large, toughness is good, and tests such as ball falling are facilitated; and the melt elongation rate is high, and the modified polypropylene material is mainly suitable for blow molding, plastic suction and other occasions.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a modified polypropylene material and its preparation method and application. Background technique [0002] Polypropylene material is currently the most used polymer material. It has excellent processing properties and mechanical properties. It is widely used in daily life and industrial production fields, such as: agricultural film, wire and cable, communication, housing construction and aviation manufacturing. Wait. [0003] At present, the polyolefin materials suitable for blow molding and blister use are basically pure HDPE or PP resins. These resins can be molded well, but they still need to be improved in terms of heat resistance and strength. In the industry, the high strength and high rigidity of glass fibers are usually used to improve product strength and heat resistance, but conventional glass fiber reinforced polypropylene materials have low melt strengt...

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): C08L53/00C08L51/06C08K7/14C08K7/10
CPCC08L53/00C08K2201/004C08K2201/014C08K2201/003C08L51/06C08K7/14C08K7/10
Inventor 陆湛泉黄险波叶南飚陈平绪程文建程书文姜向新杨霄云
Owner KINGFA SCI & TECH CO LTD
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