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

Micro-foamed polypropylene and preparation method thereof

A polypropylene and micro-foaming technology, which is applied in the field of micro-foaming polypropylene and its preparation, can solve the problems of difficult and complex product quality control, large investment in equipment, etc., and achieve good effects of absorbing ultraviolet rays and considerable industrial value

Pending Publication Date: 2018-09-07
SUZHOU RUNJIA ENGINEER PLASTIC
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing foaming process is relatively complicated, the equipment investment is large, the product quality control is relatively difficult, and special high-melt strength polypropylene is required as the foaming substrate

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] A preparation method for micro-foamed polypropylene, comprising the following steps:

[0022] Step S1, weighing each raw material according to the weight ratio;

[0023] Step S2, the highly crystalline polypropylene, organic fiber, ethyl cellulose, nano-montmorillonite, polypropylene carbonate foaming powder, yeast powder, sodium citrate and other additives weighed in step S1 are dried Finally, put it into the blender, then add an appropriate amount of castor oil, mix well, and set aside;

[0024] Step S3, adding an appropriate amount of wormwood powder and geranium essential oil to the mixture prepared in step S2, mix well, and set aside;

[0025] Step S4, put the mixture prepared in step S3 into a twin-screw extruder, melt extrude and pelletize, and control the temperature of the twin-screw extruder at 175-240° C. to obtain the desired micro-foamed polypropylene.

[0026] In step S1, each raw material is expressed in parts by weight, including 60-80 parts of high cr...

Embodiment 1

[0030] A kind of micro-foaming polypropylene, which is composed of high-crystalline polypropylene, organic fiber, ethyl cellulose, nano-montmorillonite, carbonate foaming powder for polypropylene, yeast powder, sodium citrate, wormwood powder, and fragrant leaves Geranium essential oil, castor oil and other auxiliary agents are prepared by melt extrusion granulation, expressed by weight percentage, micro-foamed polypropylene includes 60-80 parts of high crystalline polypropylene, 40-65 parts of organic fiber, 10 parts of ethyl cellulose -16 parts, 4-10 parts of nano-montmorillonite, 6-18 parts of carbonate foaming powder for polypropylene, 5-13 parts of yeast powder, 2-10 parts of sodium citrate, 2-9 parts of wormwood powder, 2-8 parts of geranium essential oil, 3-7 parts of castor oil and 13-39 parts of other additives, including 3-6 parts of nucleating agent, 2-6 parts of toughening agent, and 1-4 parts of ultraviolet absorber 3-8 parts, antibacterial agent 3-8 parts, preser...

Embodiment 2

[0040] A kind of micro-foaming polypropylene, which is composed of high-crystalline polypropylene, organic fiber, ethyl cellulose, nano-montmorillonite, carbonate foaming powder for polypropylene, yeast powder, sodium citrate, wormwood powder, and fragrant leaves Geranium essential oil, castor oil and other additives are prepared by melt extrusion granulation. Expressed by weight percentage, micro-foamed polypropylene includes 60-80 parts of high crystalline polypropylene, 40-65 parts of organic fiber, 10-16 parts of ethyl cellulose, 4-10 parts of nano-montmorillonite, and carbonic acid for polypropylene. 6-18 parts of salt foaming powder, 5-13 parts of yeast powder, 2-10 parts of sodium citrate, 2-9 parts of wormwood powder, 2-8 parts of geranium essential oil, 3-7 parts of castor oil and other auxiliary ingredients 13-39 parts of antibacterial agent, other additives include 3-6 parts of nucleating agent, 2-6 parts of toughening agent, 1-4 parts of ultraviolet absorber, 3-8 p...

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 relates to micro-foamed polypropylene and a preparation method thereof. The micro-foamed polypropylene is prepared by melt extrusion granulation of high-crystallinity polypropylene, organic fibers, ethyl cellulose, nano-montmorillonite, a carbonate foaming powder for polypropylene, a yeast powder, sodium citrate, a wormwood powder, pelargonium graveolens essential oil, castor oil andother auxiliary agents. According to the micro-foamed polypropylene and the preparation method thereof provided by the invention, the high-crystallinity polypropylene is used as a matrix, the organicfibers, ethyl cellulose, nano-montmorillonite, the carbonate foaming powder for polypropylene, the yeast powder and sodium citrate react with the micro-foamed polypropylene under the action of otherauxiliary agents, and lightweight production requirements are achieved on the basis of improvement of the comprehensive properties of the micro-foamed polypropylene material; the mosquito repellent effect of micro-foamed polypropylene can be improved through the wormwood powder and the pelargonium graveolens essential oil, and mosquitoes can be prevented from adhering to the surface of the material when more mosquitoes exist in summer. The micro-foamed polypropylene has good absorbability of ultraviolet rays, bacterial resistance, corrosion resistance, weather resistance and oxidation resistance, and can be widely used for preparing automotive parts and the like.

Description

technical field [0001] The invention relates to the technical field of polypropylene foaming materials, in particular to a micro-foaming polypropylene and a preparation method thereof. Background technique [0002] Polypropylene resin (PP) has the advantages of good physical properties, formability, and chemical corrosion resistance. It has no peculiar smell and is non-toxic. It is an environmentally friendly material and is widely used in automotive parts. Under the double pressure of the environment, how to achieve lightweight is becoming a hot spot of attention. [0003] Due to the unique inherent characteristics of polypropylene, polypropylene foaming materials were developed late, and it was not until 1980 that PP foaming materials were industrialized. At present, only a few countries such as the United States, Italy, and Japan can produce it abroad. The existing foaming process is relatively complicated, the equipment investment is large, the product quality control ...

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): C08L23/12C08L1/28C08L91/00C08L97/02C08K3/34C08K5/098C08J9/08
CPCC08J9/08C08J2401/28C08J2323/12C08J2203/02C08J2497/02C08K3/346C08K5/098C08J2491/00C08K2201/011
Inventor 汪理文李庆贵何腾飞周明张辉江贵勇翁永华丁贤麟
Owner SUZHOU RUNJIA ENGINEER PLASTIC
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