A medium-voltage insulating rubber with excellent performance and preparation method thereof
An insulating rubber, excellent technology, applied in the field of medium-voltage insulating rubber and its preparation, can solve the problems of medium-voltage ethylene-propylene insulating rubber, such as excessive high-voltage partial discharge
Inactive Publication Date: 2011-12-14
河北中联塑胶科技发展有限公司
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Problems solved by technology
[0004] In order to overcome the technical problem of excessive high-voltage partial discharge of medium-voltage ethylene-propylene insulating rubber prepared by the existing technology, medium-voltage cables or accessories with more excellent performance can be prepared
Method used
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specific Embodiment 1-3
[0011]
[0012]
[0013] The preparation method is as follows: first put ethylene-propylene rubber and anti-aging agent into the internal mixer, banbury at 95-100°C for 5 minutes, add nano-treated calcined clay, then add lubricant and processing oil, continue banburying for 3 minutes, then add coupling agent , unloading after banburying for 2 minutes. Put the rubber material after banburying on the mill at 18:00 for three times, then add organic peroxide, make five triangular bags, pass five times, then roll the strips or cool and then granulate; The rubber material is extruded and granulated by a single-screw extruder or a two-stage extruder. The temperature of each zone is: 80°C, 90°C, 100°C, 105°C, 110°C in the feed area, 110-115°C in the die area of the die ℃. Stored after cooling and packaging.
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The invention relates to a medium-voltage insulating rubber with excellent performance and a preparation method thereof. The weight ratio of its components is: 100 parts of ethylene-propylene rubber, 30-50 parts of calcined clay, 1-3 parts of anti-aging agent, 2-5 parts of organic peroxide, 1-2 parts of coupling agent, lubricant 5-10 parts, processing oil 5-15 parts. The invention prepares a medium-voltage insulating rubber with excellent performance and a preparation method thereof, which not only overcomes the technical problem of excessive partial discharge in the preparation of medium-voltage cables in the prior art, but also can produce cables or accessories with better performance.
Description
technical field [0001] The invention relates to a medium-voltage insulating rubber with excellent performance and a preparation method thereof. Background technique [0002] Medium-voltage insulating rubber can be widely used in molded products of medium-voltage cables and medium-voltage cable accessories. It is a commonly used product. Ethylene-propylene insulating rubber has a wide service temperature and can maintain various performance. Ethylene-propylene insulating rubber not only has excellent electrical properties, small dielectric constant and dielectric loss tangent, excellent water resistance, corona resistance, flexibility, and excellent impact resistance. Therefore, the various excellent properties of ethylene-propylene rubber are still a hot topic for future development and utilization. [0003] The types of ethylene-propylene rubber used in ethylene-propylene rubber include ordinary low-modulus and high-modulus ethylene-propylene rubber, which can be used in ...
Claims
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Login to View More IPC IPC(8): C08L23/16C08K13/06C08K5/14C08K3/34H01B3/28H01B19/00
Inventor 魏贺房张国辉魏贺珺张文龙
Owner 河北中联塑胶科技发展有限公司