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

High-strength wholly-vulcanised polyolefinic thermoplastic elastomer and its preparation method

A technology of thermoplastic elastomer and full vulcanization, which is applied in the field of thermoplastic elastomer, can solve the problems of dispersion, and achieve the effect of simple process, good tensile strength, and easy operation and application

Active Publication Date: 2006-05-10
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the inventors have found through research that since the particle size of ultrafine powder rubber with cross-linked structure is very small and difficult to stick, it is very easy to disperse in the plastic matrix, and the synergistic effect can make the nano-carbonate The dispersion of calcium is also improved, so the strength of the final thermoplastic elastomer can be improved with a small amount of nano-calcium carbonate

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

Embodiment 1

[0026] Mix cross-linked styrene-butadiene powder rubber with an average particle size of about 100nm and polypropylene (Qilu Petrochemical, brand PPR) in a ratio of 60 / 40, and then add 2 parts of cross-linked styrene-butadiene powder rubber based on 100 parts Nanoscale calcium carbonate (Inner Mongolia Mengxi Gaoxin Materials Co., Ltd., particle diameter 15-30nm) and the antioxidant 1010 (production of Swiss Ciba Jiaji) of composition gross weight 0.5%wt, use the ZSK- 25-type twin-screw extruder extrudes and pelletizes, and the temperatures of each section of the extruder are: 170°C, 190°C, 190°C, 190°C, 190°C and 195°C (head temperature). The pellets were made into standard specimens by injection molding, and various performance tests were carried out. The measured results of the fully vulcanized styrene-butadiene rubber / polypropylene thermoplastic elastomer are listed in Table 1.

[0027] The cross-linked styrene-butadiene powder rubber is prepared in this way:

[0028]The ...

Embodiment 2

[0030] Except that the add-on of nanoscale calcium carbonate (same as embodiment 1) becomes based on 100 parts of cross-linked styrene-butadiene powder rubber, adding 5 parts, all the other are the same as embodiment 1, and the fully vulcanized styrene-butadiene rubber / The polypropylene thermoplastic elastomer results are listed in Table 1.

Embodiment 3

[0032] Except that the addition of nanoscale calcium carbonate (same as embodiment 1) becomes based on 100 parts of cross-linked styrene-butadiene powder rubber, adding 7 parts, all the other are the same as embodiment 1, and the total vulcanized styrene-butadiene rubber / The polypropylene thermoplastic elastomer results are listed in Table 1.

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 sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides the high-intensity fully vulcanizate polyolefin thermoplastic elastomers and its preparation method, and relates its technology field. , The fully vulcanizate polyolefin thermoplastic elastomers comprises the polyolefine resin, powder rubber and nano calcium carbonate. The said powder rubber is rubber particle possessing the crosslinked structure, the mean particle diameter of which is 20nm-1000nm, and the gelatin concent of which is 60wt% or more than 60wt%. The mean particle diameter of nano calcium carbonate is 10-100nm. The proportion by weight of powder rubber and polyolefin thermoplastic elastomers is 30í†70-75í† 25. The content of nano calcium carbonate is 0.5-10% of powder rubber. The powder rubber and inorganic particle are dispersed homogeneously in the polyolefin thermoplastic elastomers, so the fully vulcanizate polyolefin thermoplastic elastomers possesses good hot strength and wide application.

Description

technical field [0001] The present invention relates to a thermoplastic elastomer, and furthermore, relates to a fully vulcanized polyolefin thermoplastic elastomer obtained by modification with high strength and a preparation method thereof. Background technique [0002] Fully vulcanized thermoplastic elastomer is a new material developed in the 1980s. It is prepared by mechanically blending elastomers and rigid plastics under certain conditions using dynamic vulcanization technology. This kind of thermoplastic elastomer is completely cross-linked rubber phase dispersed in the plastic matrix in phase state. The fully vulcanized thermoplastic elastomer is prepared by the dynamic vulcanization method, and the vulcanization of the rubber is accompanied by the blending of the materials. The particle size of the rubber phase is mainly determined by the balance between the mechanical blending shear and the chemical crosslinking reaction, so the rubber It is difficult to make th...

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): C08L21/00C08K3/26C08L23/00
Inventor 张晓红乔金樑谭邦会刘轶群高建明黄帆宋志海陈志达魏根栓
Owner CHINA PETROLEUM & CHEM CORP
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