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

Cold-resistant EPR (Ethylene-Propylene Rubber) insulating rubber eraser used on wind power generation flexible cable

A kind of flexible cable and cold-resistant technology, applied in the direction of organic insulators, rubber insulators, etc., can solve the problems of low temperature tensile strength of -40 °C, poor cold-resistant performance of ethylene-propylene rubber, etc., to improve cold-resistant performance, good cold-resistant performance, Good extrusion performance

Active Publication Date: 2012-11-28
FAR EAST CABLE +2
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the formula of "Ethylene Propylene Rubber for Wire and Cable" disclosed in Chinese patent ZL200610161495.1 uses ethylene propylene rubber as the rubber material, the ethylene content in the ethylene propylene rubber raw rubber is ≥80%, which leads to the cold resistance of the ethylene propylene rubber Poor, can not meet the requirements of cold resistance -40 ℃ low temperature stretching

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
  • Cold-resistant EPR (Ethylene-Propylene Rubber) insulating rubber eraser used on wind power generation flexible cable
  • Cold-resistant EPR (Ethylene-Propylene Rubber) insulating rubber eraser used on wind power generation flexible cable
  • Cold-resistant EPR (Ethylene-Propylene Rubber) insulating rubber eraser used on wind power generation flexible cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The composition of the EPR insulating rubber of the present embodiment, the proportioning number of parts and the model are shown in Table 1:

[0033] Table I

[0034]

[0035] In this example:

[0036] Properties of mixed film:

[0037] Mooney viscosity M(1+4) at 100°C is: 35.0Mv

[0038] The maximum torque MH at 170℃*15min on the rheometer is: 3.2N.m

[0039] The process scorch time t10 at 170℃*15min on the rheometer is: 1.0min

[0040] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 9.0min

[0041] Volume resistivity at 20°C: 5.6*10 14 Ω.m

[0042] Tensile strength: 7.5N / mm 2

[0043] Elongation: 380%

[0044] Specific gravity: 1.42g / cm 3

[0045] -40℃×4 hours cold resistance tensile elongation: 120%

[0046] The performance of the finished product EPR insulating rubber produced according to the present embodiment is shown in Table 2:

[0047] Table II

[0048]

Embodiment 2

[0050] The composition of the EPR insulating rubber of the present embodiment, the proportioning number of parts and the model are shown in Table 3:

[0051] Table three

[0052]

[0053]

[0054] In this example:

[0055] Performance of mixed film:

[0056] Mooney viscosity M(1+4) at 100°C is: 32.0Mv

[0057] The maximum torque MH at 170℃*15min on the rheometer is: 3.3N.m

[0058] The process scorch time t10 at 170℃*15min on the rheometer is: 0.9min

[0059] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 8.2min

[0060] Volume resistivity at 20°C: 6.5*10 14 Ω.m

[0061] Tensile strength: 8.0N / mm 2

[0062] Elongation: 350%

[0063] Specific gravity: 1.40g / cm 3

[0064] -40℃×4 hours cold resistance tensile elongation: 90%

[0065] The performance of the finished product EPR insulating rubber produced according to the present embodiment is shown in Table 4:

[0066] Table four

[0067]

Embodiment 3

[0069] The composition of the EPR insulating rubber of the present embodiment, the proportioning number of parts and the model are shown in Table five:

[0070] Table five

[0071]

[0072] In this example:

[0073] Properties of mixed film:

[0074] Mooney viscosity M(1+4) at 100°C is: 33.5Mv

[0075] The maximum torque MH at 170℃*15min on the rheometer is: 3.0N.m

[0076] The process scorch time t10 at 170℃*15min on the sulfur rheometer is: 1.1min

[0077] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 10.0min

[0078] Volume resistivity at 20°C: 2.2*10 14 Ω.m

[0079] Tensile strength: 7.0N / mm 2

[0080] Elongation: 340%

[0081] Specific gravity: 1.41g / cm 3

[0082] -40℃×4 hours cold resistance tensile elongation: 135%

[0083] The performance of the finished product EPR insulating rubber produced according to the present embodiment is shown in Table six:

[0084] Table six

[0085]

[0086]

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
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a cold-resistant EPR (Ethylene-Propylene Rubber) insulating rubber eraser used on a wind power generation flexible cable. The cold-resistant EPR insulating rubber eraser consists of the following components according to ratios: 60-40 parts of EPDM (Ethylene-Propylene-Diene Monomer) A, 40-60 parts of EPDM (Ethylene-Propylene-Diene Monomer) B, 5-10 parts of active agent, 2-4 parts of stabilizer, 2-4 parts of antioxidant, 2-4 parts of cold-resistant plasticizer, 5-15 parts of reinforcing agent, 105-125 parts of filling agent, 6-10 parts of lubricating additive, 1-2 parts of silane coupling agent, and 10-14 parts of composite vulcanizing agent. The gel content of the insulating rubber eraser is 38-40% which is obtained by the following formula: (the weight of the EPDM A + the weight of the EPDM B) / the total weight x 100%. According to the cold-resistant EPR insulating rubber eraser, two types of EPDM are used concurrently, and then the cold-resistant plasticizer is added to improve the cold-resistant performance of the EPR insulating rubber eraser. The cold-resistant EPR insulating rubber eraser can satisfy the performance requirements of the technical specification Torsion-resistant Flexible Cable for Wind Power Use with Rated Voltages up to and including 1.8 / 3 kV TICW / 1-2009.

Description

technical field [0001] The invention relates to an insulating rubber for cables, in particular to a cold-resistant EPR insulating rubber for flexible cables for wind power generation. Background technique [0002] With the development of global industrialization, the demand for energy is increasing. In the past, energy was mainly obtained by increasing the consumption of petroleum and coal, which would greatly increase the emission of greenhouse gases, accelerate the process of the greenhouse effect, and bring ecological disasters to the world. Therefore, all countries in the world are vigorously developing renewable energy, and China has also issued the "Renewable Energy Law", which vigorously encourages the development of wind energy, solar energy, water energy, and biomass energy. As a relatively mature technology, wind power generation has the characteristics of high concentration, short construction period and moderate investment intensity. Therefore, it will show a tr...

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): C08L23/16C08K13/02C08K5/54H01B3/28
Inventor 田维生
Owner FAR EAST CABLE
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