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Ceramized polyolefin material and preparation method thereof

A polyolefin material, ceramization technology, applied in plastic/resin/wax insulators, organic insulators, electrical components, etc., can solve the problems of ceramic strength, compactness difficult to achieve expectations, high processing temperature, low residual strength and other problems , to meet the requirements of industrial scale-up production, to meet the requirements of soft laying, and to achieve the effect of concise preparation method

Inactive Publication Date: 2015-04-29
JIANGSU ZHONGLI GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Ceramized polyolefin material and preparation method thereof
  • Ceramized polyolefin material and preparation method thereof
  • Ceramized polyolefin material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 100 parts of ethylene-α-propylene copolymer weighed in parts by weight, porcelain powder A is attapulgite 180 parts, porcelain powder B is 15 parts each of zinc borate and ammonium borate, and lubricant is 8 parts of stearic acid. and 10100.3 parts of antioxidant are put into the internal mixer for mixing (also known as internal mixing), when the temperature is 100°C, the material is discharged and introduced into the twin-screw extruder through the conical feeding hopper for melt extrusion, and the twin-screw The temperature of zone 1 to zone 9 of the extruder is 60°C for zone 1, 70°C for zone 2, 80°C for zone 3, 85°C for zone 4, 90°C for zone 5, 90°C for zone 6, 90°C for zone 7, and 90°C for zone 8. 95°C, nine zone 95°C, head temperature 100°C, after exiting the twin-screw extruder, cold cut to obtain ceramic polyolefin material.

Embodiment 2

[0020] 50 parts of ethylene-α-butene copolymer, 25 parts of ethylene-α-octene copolymer, 25 parts of ethylene-α-hexene copolymer, and 80 parts of glass fiber A are , 80 parts of alumina nanotubes and 80 parts of calcium carbonate whiskers, 60 parts of vitrified powder B, namely borax, 11 parts of lubricants, namely calcium stearate and zinc stearate, 168 parts of antioxidant and 300 parts of antioxidant Put 0.5 parts into the internal mixer for mixing (also known as internal mixing), when the temperature reaches 115°C, the material is discharged and introduced into the twin-screw extruder through the conical feeding hopper for melting and extrusion. One part of the twin-screw extruder The temperature in Zone 1 to Zone 9 is 50°C for Zone 1, 65°C for Zone 2, 70°C for Zone 3, 80°C for Zone 4, 95°C for Zone 5, 95°C for Zone 6, 95°C for Zone 7, 95°C for Zone 8, and 95°C for Zone 9. 90°C, head temperature 95°C, after exiting the twin-screw extruder, cold cut to obtain ceramic polyol...

Embodiment 3

[0022]100 parts of ethylene-alpha-propylene copolymer, porcelain powder A, 100 parts of sericite, 100 parts of muscovite and 100 parts of phlogopite, porcelain powder B, low-melting borate glass powder Or 100 parts of low-melting silicate glass powder, 2.5 parts of octyl stearate as a lubricant, 2.5 parts of liquid paraffin and 10760.1 parts of antioxidant are put into the internal mixer for mixing (also known as internal mixing). When the temperature is 105°C, the material is discharged and introduced into the twin-screw extruder through the conical feeding hopper for melt extrusion. The temperatures of the first zone to the ninth zone of the twin-screw extruder are respectively 55°C for the first zone, 60°C for the second zone, and 75°C for the third zone. ℃, the fourth zone is 90°C, the fifth zone is 92°C, the sixth zone is 92°C, the seventh zone is 92°C, the eighth zone is 92°C, the ninth zone is 92°C, the head temperature is 98°C, after exiting the twin-screw extruder, it ...

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Abstract

The invention discloses a ceramized polyolefin material and a preparation method thereof, belonging to the field of electric wire and cable materials. The ceramized polyolefin material comprises the following raw material components: 100 parts of an ethylene-alpha-olefin copolymer, 150-300 parts of ceramized powder A, 20-100 parts of ceramized powder B, 5-40 parts of a lubricating agent and 0.1-1 part of an antioxidant, wherein the ethylene-alpha-olefin copolymer is one or more selected from an ethylene and alpha-propylene copolymer, an ethylene and alpha-butylene copolymer, an ethylene and alpha-hexylene copolymer and an ethylene and alpha-octene copolymer; the ceramized powder A is one or a combination of more than one selected from layered inorganic powder, fibrous inorganic powder and needle-like inorganic powder; the ceramized powder B is at least one selected from borax, ammonium borate, a zinc borate and boron frit, phosphate glass powder with a low melting point, borate glass powder with a low melting point and silicate glass powder with a low melting point; and the antioxidant is at least one selected from 1010, 1076, 168, 626, 300 and DSTDP. The ceramized polyolefin material is reasonable in raw material and proportion, capable of ensuring normal operation of a route, good in flexibility, simple in process and low in cost.

Description

technical field [0001] The invention belongs to the technical field of wire and cable materials, in particular relates to a ceramic polyolefin 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 by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K13/04C08K3/34C08K3/38C08K7/14C08K7/00C08K3/22C08K7/08B29C47/92H01B3/44B29C48/92
CPCH01B3/441C08K3/26C08K3/346C08K3/38C08K5/09C08K5/1345C08K13/02C08L23/0815B29C48/92C08K2201/011C08K2003/267C08L2201/02C08L2205/03C08L2205/025C08K13/04C08K7/14C08K7/24C08K7/08C08K5/098C08L23/06C08L83/04
Inventor 邵海彬王庭慰张尔梅顾轩臣王春丽王世通谢红国王达伟
Owner JIANGSU ZHONGLI GRP CO LTD
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