Ceramic polyolefin cable material and preparation method thereof

Abstract

The invention discloses a ceramic polyolefin cable material and a preparation method thereof, and belongs to the technical field of a wire / cable material. The ceramic polyolefin cable material consists of the following raw material components in parts by weight: 100 parts of an ethylene-alpha-olefine copolymer, 150-300 parts of ceramic powder A, 20-100 parts of ceramic powder B, 5-20 parts of a lubricant and 0.1-1 part of an antioxidant, wherein the ethylene-alpha-olefine copolymer is a mixture of ethylene and any one or more of alpha-propylene, alpha-butylene, alpha-hexylene and alpha-octylene copolymers according to any proportions by weight; the ceramic powder A is any one or any combinations of lamellar inorganic powder, fibrous inorganic powder and acicular inorganic powder; the ceramic powder B is at least one of borax, ammonium borate, zinc borate, boron frit, low-melting-point phosphate glass powder, low-melting-point borate glass powder and low-melting-point silicate glass powder; and the antioxidant is at least one of 1010, 1076, 168, 626, 300 and DSTDP.

Description

technical field [0001] The invention belongs to the technical field of wire and cable materials, in particular relates to a ceramic polyolefin cable material, and also relates to a preparation method thereof. Background technique [0002] With economic development, social progress, and significant improvement in living standards, people's awareness of safety in food, clothing, housing, transportation, and use has increased in all aspects. Among them, the safety of electricity use has become increasingly stringent. In view of the fact that wires and cables are important carriers of power systems, their safety has attracted much attention. Since the fire-resistant cable can guarantee the emergency facilities and equipment to continue to run for a certain period of time in a reasonable period of time in the burning state, it will win valuable time and / or create favorable conditions for the escape of people trapped in the fire and the rescue of firefighters. Conditions, so more...

AI Technical Summary

Problems solved by technology

The disadvantage of this patent solution is: when used, it needs to be extruded by a special rubber extruder, and it needs to be vulcanized through a vulcanization process, so the process is relatively complicated and the scope of application is limited; if the cable material is made into a silicone rubber belt , and wrap it outside the cable core during the wire and cable processing process, the production efficiency is low and the cost is high, which is not conducive to industrial scale-up production; another example is the invention patent application publication number CN103525092A which provides "a kind of ceramic silicone rubber cable material and Its preparation method", formula (by weight): 80-90 parts of silicone rubber, 10-20 parts of natural rubber, 20-30 parts of mineral silicate, 10-15 parts of antimony trioxide, 10 parts of ammonium polyphosphate -20 parts, 4-6 parts of zinc oxide, 1-2 parts of antioxidant (DTPD), 20-30 parts of spray carbon black, 10-20 parts of light calcium carbonate, 14-16 parts of aluminum hypophosphite, calcium stearate 1-2 parts, 1-2 parts of pentaerythritol, 1-2 parts of talc powder and 12-14 parts of modified filler

This patent application scheme all adopts ceramic silicon rubber material like aforementioned CN101169993B, and this patent application scheme also has the described shortcoming of aforementioned CN10116999B except that the formula is complicated; Its preparation method" (one of the inventors of this patent is the first inventor of this application), this patent solution has ceramic performance and can objectively reflect the technical effects recorded in paragraphs 0023 to 0025 of its description, but the formula and The preparation process is complicated, and because it contains more polyethylene (30-40 parts by weight in the system), the processing temperature is higher, the energy consumption is large, and it is economical and cheap; and then as disclosed in the invention patent application publication number CN103509237A There is "a kind of rapid ceramic refractory cable material". From paragraph 0005 of the specification of the patent application, it can be known that its formula is very complicated, and because the proportion of filler is unreasonable, the strength and compactness of the ceramic material are difficult to meet expectations; moreover For example, the invention patent application publication number CN103865166A discloses "low-smoke and halogen-free ceramic polyolefin cable material and its preparation method". After extruding other materials, the performance of the porcelain crust is obviously reduced, and the strength of the residue is very low

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