Unlock instant, AI-driven research and patent intelligence for your innovation.
Functional ethylene propylene diene monomer and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A functional technology of EPDM rubber, which is applied in the field of functional EPDM rubber and its preparation, can solve the problems of reducing the volume resistivity and mechanical properties of rubber, increasing the amount of paraffin oil, etc., and achieving anti-aging performance Excellent, high electrical performance, high volume resistivity effect
Pending Publication Date: 2020-09-11
CHANGLAN CABLE ACCESSORIES
View PDF4 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, since the volume resistivity of paraffin oil is lower than that of EPDM rubber, the increase in the amount of paraffin oil will not only reduce the volume resistivity and mechanical properties of the rubber, but also cause the rubber to have the potential risk of oil injection
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0069] In this example, a functional EPDM rubber is prepared, and the specific preparation raw materials include:
[0070] EPDM rubber with grade 4520 of Dow Chemical: 100 parts,
[0081] The preparation method of the above-mentioned low-hardness, high-strength and high-electricity EPDM insulating rubber comprises the following steps:
[0082] S1: Put the EPDM rubber in the formula amount into a pressurized internal mixer for 8 minutes to break the rubber;
[0083] S2: Add zincoxide, stearic acid, anti-aging agent RD, and methylphenylmethoxy silicone oil in the formula amou...
Embodiment 2
[0088] In this example, a functional EPDM rubber was prepared by using the same preparation method as in Example 1, and the specific preparation raw materials included:
[0089] EPDM rubber with grade 4520 of Dow Chemical: 100 parts,
[0102] In this example, a functional EPDM rubber was prepared by using the same preparation method as in Example 1, and the specific preparation raw materials included:
[0103] EPDM rubber with grade 4520 of Dow Chemical: 100 parts,
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
Property
Measurement
Unit
tear strength
aaaaa
aaaaa
tensile strength
aaaaa
aaaaa
electrical resistivity
aaaaa
aaaaa
Login to View More
Abstract
The invention provides functional ethylene-propylene-dienemonomer rubber and a preparation method thereof. The functional ethylene-propylene-dienemonomer rubber is prepared from the following raw materials: ethylene-propylene-dienemonomer rubber, zincoxide, stearic acid, an anti-aging agent, a plasticizer, a reinforcing agent, a structure control agent, a silanecoupling agent, a vulcanizing agent and an assistant cross-linking agent. The functional ethylene propylene diene monomer rubber provided by the invention has low hardness (shorehardness is less than 60), low Mooney value (90 DEGC, 1+4 min, less than 40) and short vulcanization time T90 (175 DEG C, 15min, less than 7min). The volume resistivity is high (greater than 1.0 * 10<16> omega.cm), the breakdown strength is high (greater than 32 kV / mm), the mechanical strength is high (the tearing strength is greater than 22 MPa and the tensile strength is greater than 10 MPa), the anti-aging performance is excellent (the tensilestrength and the elongation at break change rate are both less than + / - 20%), and frosting is avoided.
Description
technical field [0001] The invention belongs to the technical field of insulating rubber preparation, and in particular relates to a functional EPDM rubber and a preparation method thereof. Background technique [0002] Power cable accessories are products that connect cables with power transmission and distribution lines and related power distribution devices. Generally, they refer to the intermediate connection and terminal connection of various cables in the cable line. Together with the cables, they form a power transmission network. Cable accessories are mainly based on the characteristics of the cable structure, which can not only restore the performance of the cable, but also ensure the extension of the cable length and the connection of the terminal. The reliability of high-voltage cable accessories can be judged from the aspects of electrical performance, sealing and moisture-proof performance, mechanical performance and process performance. Commonly used cable acc...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More