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

A kind of high rigidity TPV toughened polypropylene composition and preparation method thereof

A polypropylene composition, high rigidity technology, applied in the field of polyolefin thermoplastic elastomer toughened modified polypropylene resin composition, dynamic vulcanization to prepare the above resin composition, can solve the problem that the rigidity of TPV toughened PP is not given, etc. , to achieve good industrialization prospects, slow speed, and ensure the effect of comprehensive mechanical properties

Active Publication Date: 2017-05-31
PETROCHINA CO LTD
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN200610152929.1 discloses a method for preparing thermoplastic vulcanizate (TPV) using two peroxide vulcanization systems with different half-lives. The TPV prepared by this method can significantly improve the tensile strength, elongation at break and permanent deformation and other mechanical properties, but the product obtained by this method is still a thermoplastic vulcanizate, and this method does not provide a solution for TPV toughened PP to maintain good rigidity

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
  • A kind of high rigidity TPV toughened polypropylene composition and preparation method thereof
  • A kind of high rigidity TPV toughened polypropylene composition and preparation method thereof
  • A kind of high rigidity TPV toughened polypropylene composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of polypropylene composition: first put 0.003kg DTBP and 0.013kg TBHP and 0.03kg acetone solvent into a beaker and mix for 3 minutes, then mix the organic peroxide solution and 0.20kg of TPV, 0.01kg of bromine (Br 2 ) (S), 0.01kg ZDMA together in a high-speed mixer and mixed at high speed for 5 minutes to make a premixed masterbatch; then polypropylene F4012kg and premixed masterbatch, antioxidant 10100.004kg, zinc stearate 0.008kg, Mix at high speed in a high-speed mixer for 7 minutes; put the mixed material into a Ф34 twin-screw extruder, and the reaction temperature (°C) of each section of the screw is: 185, 190, 200, 205, 210, 220, 210, 200 , 190; After carrying out the extrusion reaction for 4 minutes, extrude, cool, and granulate to obtain a polypropylene composition. The prepared composition pellets were made into standard samples by injection method for testing, and their properties are shown in Table 1.

Embodiment 2

[0042] Preparation of polypropylene composition: first put 0.0026kg BPDH and 0.0154kg TB and 0.04kg acetone solvent into a beaker and mix for 3 minutes, then mix the organic peroxide solution and 0.28kg of TPV, 0.012kg of bromine (Br 2 ), 0.013kg ZDMA together in a high-speed mixer for 6min at high speed to make a premixed masterbatch; then 2kg of polypropylene F401, premixed masterbatch, 10100.005kg of antioxidant, and 0.008kg of zinc stearate were mixed at high speed Mix at high speed in the mixer for 8 minutes; put the mixed material into the Ф34 twin-screw extruder, the reaction temperature (°C) of each section of the screw is: 185, 190, 200, 205, 210, 220, 210, 200, 190 ; After carrying out the extrusion reaction for 5 minutes, extrude, cool, and granulate to obtain a polypropylene composition. The prepared composition pellets were made into standard samples by injection method for testing, and their properties are shown in Table 1.

Embodiment 3

[0044] Preparation of polypropylene composition: first put 0.0024kg DTBP and 0.0166kg TBHP and 0.05kg acetone solvent into a beaker and mix for 3 minutes, then mix the organic peroxide solution and 0.32kg of TPV, 0.013kg of bromine (Br 2 ), 0.015kg ZDMA together in a high-speed mixer and mixed at high speed for 7 minutes to make a premixed masterbatch; then polypropylene F401 2kg and premixed masterbatch, antioxidant 1010 0.005kg, zinc stearate 0.009kg, in Mix at high speed in a high-speed mixer for 9 minutes; add the mixed materials into the Ф34 twin-screw extruder, and the reaction temperature (°C) of each section of the screw is: 185, 190, 200, 205, 210, 220, 210, 200, 190; after carrying out the extrusion reaction for 6 minutes, extrude, cool, and granulate to obtain a polypropylene composition. The prepared composition pellets were made into standard samples by injection method for testing, and their properties are shown 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
melt flow indexaaaaaaaaaa
densityaaaaaaaaaa
melt flow indexaaaaaaaaaa
Login to View More

Abstract

Disclosed are a polypropylene composition toughened by high-rigidity thermoplastic vulcanizate (TPV) and a preparation method thereof. Disclosed is the polypropylene composition toughened by high-rigidity TPV comprising: (1) 100% of polypropylene, (2) 1.5-2.0% of a compound cross-linking agent system, and (3) 10-30% of EPDM / PP-type TPV. The composition is processed through dynamic vulcanization. The compound cross-linking agent system comprises: 0.8-1.0% of compound organic peroxide, 0.5-0.7% of bromine and 0.5-1.0% of an acrylic acid ester auxiliary cross-linking agent. The compound organic peroxide consists of two kinds of organic peroxide with different half life characteristics, that is organic peroxide a and organic peroxide b. The half life of the organic peroxide a (Ta) is more than 180 DEG C / 1 min and less than 230 DEG C / 1 min, while the half life of the organic peroxide b (Tb) is more than 250 DEG C / 1 min. The mass ratio between the organic peroxide a and the organic peroxide b is in a range of 1:5 to 1:10. According to the invention, toughness of said resin is significantly improved and rigidity of the resin is well maintained, and thus the resin is suitable for a very wide range of fields. The invention further discloses the preparation method of the polypropylene composition.

Description

technical field [0001] The invention relates to a polypropylene resin composition and a preparation method thereof, in particular to a polyolefin thermoplastic elastomer (TPV) toughened and modified polypropylene resin composition, and a method for preparing the resin composition through dynamic vulcanization. Background technique [0002] Polypropylene (PP) is currently the fastest-growing variety of general-purpose synthetic resins, and PP is one of the most important development directions for PP materials to replace engineering plastics in the manufacture of automobiles, home appliances, and furniture parts. However, since PP is a semi-crystalline polymer, its structural characteristics lead to low notched impact strength of the resin, brittle fracture at low temperature, large shrinkage rate, and poor creep resistance, which greatly limit the further application of the resin. As a result, the research on the high-performance modification of PP has received widespread at...

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 Patents(China)
IPC IPC(8): C08L23/12C08L23/16C08K13/02C08K5/14C08K3/02C08K5/098C08K5/103
CPCC08J3/226C08J2323/12C08J2323/14C08J2423/12C08J2423/16C08K2201/014C08L23/12C08L2205/025C08L2205/03C08L2207/04C08L23/14C08L23/16C08K13/02C08K5/14C08K3/02C08K5/098C08K5/1345
Inventor 牛承祥任静朱博任春晓赵燕王玲玲杨丽萍杨茹欣陈红谈敦礼杨珊珊郭珺
Owner PETROCHINA 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