SEBS/PP (styrene-ethylene-butadiene-styrene/polypropylene) alloy melt-grafted maleic anhydride graft copolymer and preparation method thereof

A technology of grafting maleic anhydride and graft copolymers, which is applied in the field of SEBS/PP alloy melt-grafted maleic anhydride graft copolymers and its preparation, can solve the problems of high SEBS rubber content, poor processing fluidity, and high viscosity , to achieve the effect of improving compatibility, improving fluidity and expanding the field of use

Active Publication Date: 2015-01-21
赣州能之光新材料有限公司
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the SEBS rubber content is relatively high (≥50%), the viscosity is high, and the processing fluidity is poor. Many SEBS products need to be filled with mineral oil before processing.

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
  • SEBS/PP (styrene-ethylene-butadiene-styrene/polypropylene) alloy melt-grafted maleic anhydride graft copolymer and preparation method thereof
  • SEBS/PP (styrene-ethylene-butadiene-styrene/polypropylene) alloy melt-grafted maleic anhydride graft copolymer and preparation method thereof
  • SEBS/PP (styrene-ethylene-butadiene-styrene/polypropylene) alloy melt-grafted maleic anhydride graft copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh the following components by weight: 60 parts of SEBS (Baling Petrochemical, YH503), 40 parts of polypropylene PP (Ningbo Yongxing, 045), 2 parts of maleic anhydride monomer, 1 part of styrene monomer, initiator Dissolve and dilute 0.2 parts of dicumyl peroxide (DCP) with 1.5 parts of diluent acetone, and 0.5 parts of lubricant erucamide. Mix the above-mentioned raw and auxiliary materials in a low-speed mixer for 15 minutes, and then add them to the twin-screw extruder. 200°C, 190°C, 190°C, 180°C, 180°C, 170°C, the machine head is 170°C, the mixed material is melted and plasticized, kneaded and mixed, machine head extruded, water ring pelletized, cooled, dehydrated, drum Air-dried to obtain the product.

Embodiment 2

[0026] Take the following components by weight: 80 parts of SEBS (Taiwan Rubber, 6152), 20 parts of polypropylene PP (Dushanzi Petrochemical, K8003), 3 parts of maleic anhydride monomer, 3 parts of styrene monomer, and the initiator is 0.3 part of 2,5-dimethyl-2,5 bis(tert-butyl peroxy)hexane was dissolved and diluted with 2 parts of diluent acetone, and 0.3 part of lubricant ethylene bisstearamide. Mix the above-mentioned raw and auxiliary materials in a low-speed mixer for 15 minutes, and then add them to the twin-screw extruder. 190°C, 190°C, 180°C, 180°C, 180°C, 170°C, the machine head is 170°C, the mixed material is melted and plasticized, kneaded and mixed, extruded by the machine head, water ring pelletized, cooled, dehydrated, drummed Air-dried to obtain the product.

Embodiment 3

[0028] Weigh the following components in parts by weight: 30 parts of SEBS (Baling Petrochemical, YH503), 45 parts of SEBS (Baling Petrochemical, YH501), 25 parts of polypropylene PP (Zhenhai Petrochemical, F3-045), maleic anhydride mono 2.5 parts of styrene monomer, 1.5 parts of styrene monomer, 0.15 parts of 2,5-dimethyl-2,5 bis(tert-butyl peroxy)hexane as initiator, dissolved and diluted with 1.5 parts of ethanol as diluent, ethylene as lubricant 0.4 parts of bis stearylamide. Mix the above-mentioned raw and auxiliary materials in a low-speed mixer for 15 minutes, and then add them to the twin-screw extruder. 195°C, 195°C, 190°C, 180°C, 180°C, 170°C, the machine head is 170°C, the mixed material is melted and plasticized, kneaded and mixed, extruded by the machine head, water ring pelletized, cooled, dehydrated, drummed Air-dried to obtain the product.

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
elongation at breakaaaaaaaaaa
Login to view more

Abstract

The invention relates to an SEBS/PP (styrene-ethylene-butadiene-styrene/polypropylene) alloy melt-grafted maleic anhydride graft copolymer and a preparation method thereof. The graft copolymer is prepared from the following raw materials in parts by mass: SEBS, PP, maleic anhydride monomer, styrene monomer, initiator, diluter and lubricant. The preparation method comprises the following steps: proportionally mixing the raw materials, stirring and blending, adding into an extruder, and carrying out melt plastification, compounding, extrusion, water ring granulation, cooling, dehydration and forced air drying on the mixture to obtain the graft copolymer. By using the double screw extruder as the melt grafting copolymerization reaction vessel, the method is high in production efficiency and can implement continuous production; and compared with other process routes, the method provided by the invention has the characteristics of environment friendliness, high efficiency and low cost.

Description

technical field [0001] The invention belongs to the field of graft copolymers and their preparation, and in particular relates to a SEBS / PP alloy fusion-grafted maleic anhydride graft copolymer and a preparation method thereof. Background technique [0002] SEBS is a new type of modified elastomer prepared by selective hydrogenation of polybutadiene unsaturated double bonds in the rubber segment of polystyrene-polybutene-polystyrene (SBS) molecules. SEBS not only has excellent aging resistance, but also has good mechanical properties. The elongation at break is 0-150%, which exceeds that of vulcanized rubber. It not only has good resistance to ozone, ultraviolet rays, and electric arcs, but also has good oil resistance. , chemical resistance and excellent low temperature resistance. Its products have the characteristics of colorless, transparent, non-toxic, odorless, excellent coloring performance, low density and strong adhesion with other materials, so they are widely use...

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): C08L51/00C08L23/16C08F287/00C08F222/06C08F212/08
Inventor 赵平张发饶陈波洪利杰
Owner 赣州能之光新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap