EPDM/polypropylene thermoplastic elastomer and preparation process thereof

A thermoplastic elastomer, EPDM technology, which is applied in the field of resource reuse of waste tires (waste EPDM), can solve the problem that it is difficult to meet the requirements of activation treatment, affect the effect of subsequent processes, and cannot achieve Activation requirements and other issues, to achieve the effect of expanding a wide range of hardness changes, excellent toughening, and improving plasticity and elasticity

Active Publication Date: 2014-04-30
辽宁瑞德橡塑科技有限公司
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of using waste tires (waste EPDM rubber) to prepare thermoplastic elastomers is to first crush them into vulcanized rubber powder, and then blend them with other polymers, and their properties are very different from those of unvulcanized rubber. , the vulcanized rubber powder obtained by crushing waste rubber products, its structure is still a network structure of three sulfur bond states of monosulfide, disulfide and polysulfide formed at the crosslinking point of vulcanized rubber. Linked, physical coagulated random polymer elastomers, when blended with other polymers, have poor compatibility with the blended matrix material, and the blended system with plastic materials is

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
  • EPDM/polypropylene thermoplastic elastomer and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example 1

[0049]The material formula consists of: PP (F401), recycled PP, plasticized rubber powder, naphthenic oil, POE, 1250 mesh talc, antioxidant 1010, PE wax, butyl methacrylate, DCP; among them, plasticized rubber The powder is obtained by pretreatment of waste EPDM rubber powder (containing more than 40% of glue), and the pretreatment formula is composed of the following components in parts by weight: 80 mesh waste EPDM rubber powder, solid coal tar, rubber Activator 420, surfactant TAIC, 1250 mesh talc. See Table 1 for specific parts by weight.

[0050] Preparation process: (1) First, put the waste EPDM rubber powder into the high mixer for 1400 rpm treatment, when the temperature rises to 80 degrees, add solid coal tar, activator, surfactant, continue stirring, and wait for the rubber powder to dissolve. The temperature was raised to 150 degrees, talc was added, quenched to room temperature, and sealed for later use. (2) Then add PP raw material, POE, naph...

Example Embodiment

[0058] Example 2

[0059] The material formula consists of: PP (F401), plasticized rubber powder, naphthenic oil, POE, 1250 mesh talc, antioxidant 1010, PE wax, butyl methacrylate, DCP, anti-ultraviolet additive UV-9; Wherein, the plasticized rubber powder is obtained from waste EPDM rubber powder (with a rubber content greater than 40%) through pretreatment, and the pretreatment formula is composed of the following components in parts by weight: 80 mesh waste EPDM rubber powder, Solid coal tar, rubber activator 450, surfactant silane coupling agent 602, 1250 mesh talc. See Table 1 for specific parts by weight.

[0060] Preparation process: (1) First, put the waste EPDM rubber powder into the high mixer for 1400 rpm treatment, when the temperature rises to 80 degrees, add solid coal tar, activator, surfactant, continue stirring, and wait for the rubber powder to dissolve. The temperature was raised to 150 degrees, talc was added, quenched to room temperature, and sealed for ...

Example Embodiment

[0066] Example 3

[0067] The material formula is composed of: recycled PP, plasticized rubber powder, naphthenic oil, POE, 1250 mesh talc, antioxidant 1010, PE wax, butyl methacrylate, DCP, sericite; among which, the plasticized rubber powder is composed of Waste EPDM rubber powder (containing more than 40% of glue) is obtained through pretreatment, and the pretreatment formula is composed of the following components in parts by weight: 80 mesh waste EPDM rubber powder, solid coal tar, rubber activator 480, surfactant (oleic acid), 1250 mesh talc. See Table 1 for specific parts by weight.

[0068] The preparation process is the same as that of Example 1.

[0069] Table 1 Material components, pretreatment formulations and their physical and mechanical properties used in each example

[0070]

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 an EPDM (Ethylene-Propylene-Diene Monomer)/polypropylene thermoplastic elastomer and a preparation process thereof. The EPDM/polypropylene thermoplastic elastomer is characterized by comprising the following components in parts by weight: 1065-1250 parts of PP (Poly Propylene ) raw material, 150-550 parts of plasticized rubber powder, 60-80 parts of naphthenic oil, 80-180 parts of POE (Poly Olefin Elastomer), 100-150 parts of 250-mesh talcum powder, 3-7 parts of antioxidant 1010, 10-30 parts of PE (Poly Ethylene) wax, 15-45 parts of butyl methacrylate and 4.5-15 parts of DCP, wherein the plasticized rubber powder is obtained from the waste ethylene -propylene-diene monomer powder through preprocessing, and a formula for the preprocessing includes 1500 parts by weight of 80-mesh waste ethylene -propylene-diene monomer powder, 100-200 parts by weight of solid coal tar, 5-10 parts by weight of activator, 20-40 parts by weight of surfactant and 20-40 parts by weight of 1250-mesh talcum powder. The thermoplastic elastomer is wide in hardness change range, high in strength, and remarkably improved in physical and mechanical properties.

Description

technical field [0001] The invention relates to a thermoplastic elastomer material, in particular to an EPDM rubber / polypropylene thermoplastic elastomer and a preparation process thereof, belonging to the field of resource recycling of waste tires (waste EPDM rubber). Can be used in outdoor sports equipment, motor vehicles, marine outdoor plastic products. Background technique [0002] Thermoplastic Elastomer (TPE), also known as Thermoplastic Rubber (TPR), is a material that has both rubber and thermoplastic properties. Thermoplastic elastomers have a variety of possible structures. The most fundamental one is the need to have at least two mutually dispersed The polymer phase, at normal use temperature, one phase is fluid (the temperature is made above its glass transition temperature), the other phase is solid (the temperature is made below its glass transition temperature), and there is mutual interaction between the two phases. effect. That is, a polymer material ...

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): C08L23/12C08L23/16C08L23/08C08L23/06C08K13/02C08K5/01C08K3/34C08K5/13C08K5/101C08K5/14
CPCC08J11/18C08J2323/16C08K2201/014C08L23/12C08L2201/08C08L2205/035C08L2207/04C08L23/16C08L23/0815C08L23/06C08K13/02C08K5/01C08K3/34C08K5/1345C08K5/101C08K5/14
Inventor 刘京澎李兆顺张海军屈丰来朱金洋彭立敏
Owner 辽宁瑞德橡塑科技有限公司
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