High-temperature fire-resistant watertight insulating rubber for cable applied to safe return of ship to port, and manufacturing method of high-temperature fire-resistant watertight insulating rubber

Abstract

The invention belongs to the technical field of cables, and discloses a high-temperature fire-resistant watertight insulating rubber for a cable applied to safe return of a ship to a port, and a manufacturing method of the high-temperature fire-resistant watertight insulating rubber. The rubber comprises the following raw material components in parts by weight: 20 parts of methyl vinyl silicone rubber 110-3-B, 20 parts of EPDM (ethylene propylene diene monomer) Mitsui EPT 4045M, 0.6 to 1 part of bis(tert-butylperoxyisopropyl)benzene (BIPB), 0.2 to 0.3 part of trimethylolpropane trimethacrylate (LS-3-80); 0.4 to 0.6 part of an amine aldehyde compound anti-aging agent XH-3, 0.2 to 0.4 part of 2-mercapto benzimidazole (MBI), 5 to 9 parts of white carbon black having undergone gas-phase-method surface treatment, 4 to 8 parts of low-temperature low-melting-point glass powder with a softening temperature of 400-700 DEG C, 4 to 8 parts of high-temperature low-melting-point glass powder with a softening temperature of 600-1100 DEG C, 0.5 to 1.5 parts of iron sesquioxide, 0.4 to 1 part of diphenylsilanediol and and 0.1 to 0.2 part of SI69-50. The manufacturing method comprises the following steps: firstly, carrying out two-side mixing operation in an open mill, then adding the methyl vinyl silicone rubber 110-3-B and the raw rubber of EPDM Mitsui EPT 4045M, conducting mixing for 2-3 minutes, then sequentially adding other components, carrying out mixing for 7-8 minutes, performing discharging, conducting extruding and granulating on a double-screw granulator, and preforming cooling for separate use.

Description

technical field [0001] The invention mainly relates to the technical field of cable insulating materials, in particular to a high-temperature, fire-resistant and watertight insulating rubber used for a ship's safe return to port cable and a manufacturing method thereof. Background technique [0002] Based on the principle that "the ship itself is its best lifeboat", the International Maritime Organization (IMO) has paid more and more attention to the safety of ships. The International Convention for the Safety of Life at Sea (SOLAS) has proposed "Safe Return to Port" concept; the IMO continues to reinforce this requirement. In December 2006, the IMO Maritime Safety Committee announced MSC.216(82) resolution, which added the content of safe return to port, which constituted the basis for the regulations of safe return to port; in May 2010, it approved MSC.1 / Circ. or Interim Explanatory Notes on System Capability Assessment after Flooding Accidents", clarifying the requiremen...

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Problems solved by technology

[0003] The requirements for the safe return of ships to the port put forward new requirements for the supporting cables to be used in this working condition, that is, to have both (1100°C, 3h) fire resistance and corresponding watertightness (including longitudinal watertightness and transverse watertightness), but currently In the industry, there are only cables that satisfy a single performance, and there is no cable that has both performances at the same time

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