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

Ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber

A technology of EPDM rubber and soft rubber compound is applied in the field of EPDM low-smoke halogen-free flame retardant soft compound, which can solve the problems of poor self-extinguishing performance, large amount of flame retardant and high hardness. To achieve good self-extinguishing and hardness improvement effect

Inactive Publication Date: 2017-05-17
南京璟仕汇新材料科技有限公司
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a halogen-free low-smoke rubber material with good mechanical properties and high flame-retardant performance, and its purpose is to solve the problems of the existing low-smoke and halogen-free rubber materials with a large amount of flame retardant added, high hardness and poor self-extinguishing performance

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
  • Ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber
  • Ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber
  • Ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: A EPDM low-smoke, halogen-free, flame-retardant soft rubber material is made of the following raw materials in parts by weight: 100 parts of EPDM rubber, 50 parts of aluminum hydroxide, 50 parts of magnesium hydroxide, 20 parts of microencapsulated ammonium polyphosphate, 15 parts of microencapsulated red phosphorus.

Embodiment 2

[0019] Example 2: A soft low-smoke, halogen-free, flame-retardant EPDM rubber compound made of the following raw materials in parts by weight: 100 parts of EPDM rubber, 80 parts of magnesium hydroxide, 15 parts of zinc borate, phosphoric acid 15 parts of triphenyl ester, 15 parts of pentaerythritol phosphate, 10 parts of zinc borate, 15 parts of microencapsulated red phosphorus.

Embodiment 3

[0020] Example 3: An EPDM low-smoke, halogen-free, flame-retardant soft rubber material is made of the following raw materials in parts by weight: 100 parts of EPDM rubber, 100 parts of inorganic flame retardant, phosphorus nitrogen flame retardant 20 parts, 20 parts of synergistic flame retardant, 16 parts of plasticizer, 2.5 parts of antioxidant, 2 parts of zinc oxide, 3 parts of modifier, 1 part of stearic acid, 1.5 parts of silicone powder, 2.5 parts of carbon black , 1 part of sulfur, 2 parts of vulcanization accelerator.

[0021] The inorganic flame retardant is aluminum hydroxide.

[0022] The phosphorus nitrogen flame retardant is 5 parts of melamine and 15 parts of ammonium polyphosphate.

[0023] The synergistic flame retardant is 5 parts of microencapsulated red phosphorus and 15 parts of zinc borate.

[0024] The plasticizer is 3 parts of paraffin oil, 3 parts of cylinder oil, and 10 parts of tricresyl phosphate.

[0025] The antioxidant is 0.5 parts of tetrakis...

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
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Shore hardnessaaaaaaaaaa
Login to View More

Abstract

The invention provides ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene diene terpolymer, 80-100 parts of inorganic flame retardant, 20-30 parts of phosphorus nitrogen flame retardant and 15-25 parts of synergistic flame retardant. According to the invention, the flame retardant property and the mechanical property of the whole formula are comprehensively considered; the tensile strength is above 12MPa; the elongation at break is above 500%; the Shore A hardness is less than 70; LOI is more than or equal to 30%; and the rubber can meet the requirement of UL94-V0 level vertical combustion test. The ethylene propylene diene terpolymer low-smoke zero-halogen flame retardant soft rubber has excellent overall performance and can be widely applied to the flame retardant places, such as, cable insulators, jackets and sealing rings.

Description

technical field [0001] The invention relates to an EPDM rubber material, in particular to a low-smoke, halogen-free, flame-retardant soft EPDM rubber material. Background technique [0002] With the development of the economy and the enhancement of people's awareness of environmental protection, traditional halogen-containing rubber materials have been gradually replaced by halogen-free low-smoke rubber materials because of their large amount of smoke and toxic carcinogens. The existing halogen-free low-smoke rubber materials are mainly inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide added to EPDM rubber, but in order to achieve a better flame retardant effect, it needs to be added to at least 60%, so that It greatly reduces the mechanical properties of the rubber compound, affects the extrusion performance, and has a relatively high hardness. Moreover, it is difficult to achieve the VW-1 vertical burning test for wires and cables. [0003] 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): C08L23/16C08K13/02C08K13/06C08K3/22C08K9/10C08K3/02C08K3/32C08K3/38C08K5/523C08K5/3492C08K3/04C08K3/06C08K5/09C08K5/5313
CPCC08K13/06C08K3/02C08K3/22C08K3/32C08K3/38C08K5/523C08K9/10C08K2003/026C08K2003/2224C08K2003/2227C08K2003/323C08K2003/387C08K2201/014C08L23/16C08L2201/02C08L2201/22C08L2205/03C08L91/06C08K5/34922C08K3/04C08K3/06C08K5/09C08K13/02C08K5/34928C08L83/04C08K5/5313
Inventor 韩守臣
Owner 南京璟仕汇新材料科技有限公司
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