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Low-smoke flame-retardant PVC (polyvinyl chloride) cable material and preparation method thereof

A low-smoke flame-retardant and cable material technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor thermal stability, inconspicuousness, and low toughness, and achieve excellent flame-retardant effects, good insulation effects, The effect of less smoke

Active Publication Date: 2013-09-25
OPTA POLYMER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above technical problems, the present application provides a low-smoke flame-retardant PVC cable material and its preparation method, which solves the problem of poor flame-retardant effect, poor thermal stability, and aging caused by oxygen and ultraviolet light in existing low-smoke flame-retardant PVC cable materials. The smoke suppression effect is not obvious, the toughness is low, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] PVC 100;

[0086] Epoxy soybean oil 2;

[0087] TOTM 50;

[0088] Trimethylene 25; 25;

[0089] Ligitic acid lead 0.3;

[0090] Three -base sulfate 3;

[0091] Disine -based sub -phosphate 0.5;

[0092] Chlorine paraffin 15;

[0093] Oxidize PE wax 0.2;

[0094] Zinc 4;

[0095] Aluminum hydroxide 10;

[0096] Oxidation ; 6;

[0097] CPE 55;

[0098] Ermao Tie 5;

[0099] Magnesium oxide 0.5;

[0100] Copper 0.5;

[0101] Claundment 10.

[0102] Step 2: Mix PVC, plasticizer, thermal stabilizer, tough agent and flame retardant at 50 ° C for 10 minutes, add the remaining components, and mix the temperature to 70 ° C for 15 minutes;

[0103] Step 3: Put the material after mixing the second step to the dual screw extruder with a long diameter ratio of 20: 1., Three Districts 160-180 ° C, 180-160 ° C in the four districts, 160 ° C, 170 ° C, 180 ° C, 160 ° C, oral mold 170 ° C, speed of 30r / min, forming a piece.

[0104] The product oxygen index is 45%, the dielectric strength is...

Embodiment 2

[0108] PVC 100;

[0109] Epoxy soybean oil 2;

[0110] Diabenate dihyun ester 60;

[0111] Ligitic acid lead 0.6;

[0112] Tone -alkali sulfate 5;

[0113] Disine -based sub -phosphate 2.5;

[0114] Chlorine chloride 20;

[0115] Oxidize PE wax 0.25;

[0116] Zinc 5;

[0117] Aluminum hydroxide 25;

[0118] Oxidation ; 8;

[0119] CPE 55;

[0120] Bisphenol A 0.75;

[0121] Ermao Tie 5;

[0122] Magnesium oxide 1;

[0123] Copper 1;

[0124] Ceramics 15.

[0125] Step 2: Mix PVC, plasticizer, thermal stabilizer, tough agent and flame retardant at 50 ° C for 12min, add the remaining components, and mix the temperature to 70 ° C for 20 minutes;

[0126] Step 3: Put the material after mixing the second step to the dual screw extruder with a long diameter ratio of 20: 1., Three Districts 160-180 ° C, 180-160 ° C in the four districts, 160 ° C, 170 ° C, 180 ° C, 160 ° C, oral mold 170 ° C, speed of 35R / min, forming as a piece.

[0127] The product oxygen index is 46%, the dielectric st...

Embodiment 3

[0131] PVC 100;

[0132] Epoxy soybean oil 2;

[0133] Diabenate dihyun ester 60;

[0134] Ligitic acid lead 1;

[0135] Tone -alkali sulfate 5;

[0136] Disine -based sub -phosphate 3;

[0137] Chlorine chloride 20;

[0138] Oxidize PE wax 0.25;

[0139] Zinc 4;

[0140] 30 aluminum hydrolytic;

[0141] Oxidation ; 6;

[0142] Bisphenol A 0.5;

[0143] CPE 55;

[0144] Ermao Tie 5;

[0145] Magnesium oxide 0.8;

[0146] Copper 1;

[0147] Calcium carbonate 90;

[0148] Claundment 10.

[0149] Step 2: Mix PVC, plasticizer, thermal stabilizer, tough agent and flame retardant at 50 ° C for 12min, add the remaining components, and mix the temperature to 70 ° C for 20 minutes;

[0150] Step 3: Put the material after mixing the second step to the dual screw extruder with a long diameter ratio of 20: 1., Three Districts 160-180 ° C, 180-160 ° C in the four districts, 160 ° C, 170 ° C, 180 ° C, 160 ° C, oral mold 170 ° C, speed of 35R / min, forming as a piece.

[0151] The product oxygen ...

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Abstract

The invention discloses a low-smoke flame-retardant PVC (polyvinyl chloride) cable material which comprises the following components in parts by mass: 100 parts of PVC, 2-80 parts of a plasticizer, 0.3-15 parts of a heat stabilizer, 0.25-25 parts of a lubricant, 4-60 parts of a flame retardant, 0.5-60 parts of a toughener, 1-5 parts of dicyclopentadienyl iron, 0.5-1.5 parts of magnesia, 0.5-1.5 parts of copper oxalate and 10-20 parts of pottery clay. The oxygen index of the product is up to 55% which is greatly improved compared with the oxygen index (41%) of a product which is obtained in the prior art, the flame-retardant effect is more excellent, and the maximum smoke density is 280; the dielectric strength is up to 30KV / mm which is higher than the dielectric strength (27KV / mm) of the existing product; the tensile strength is 20MPa, the elongation at break is 330-350%, and the brittle temperature is -50 DEG C; the volume resistivity at 20 DEG C is 4*10<14> Ohms.cm, and the volume resistivity at 0 DEG C is 2*10<13> Ohms.cm; and the product is excellent in flame-retardant effect, less in smoke generation, resistant to ultraviolet aging and good in insulation effect and tenacity, does not generate molten drops, can be produced in a large scale, and can be used for replacing the existing material continuously.

Description

Technical field [0001] This application belongs to the field of PVC materials, especially involving a low -smoke -burning PVC cable material and its preparation methods. Background technique [0002] The wire and cable industry is an important supporting industry in my country's economic construction. It is widely used in all areas of the national economy. It occupies 1 / 4 of the Chinese electrical industry industry. It is the second largest industry in the automotive industry after the machinery industry.Among them, the wires used in indoor decoration are mainly the rated voltage 450 / 750V and below polyvinyl chloride insulating cable, also known as the cloth wire.With the development of social urbanization, science and technology, and humanization, the rapid development of the PVC industry, PVC materials are getting closer to people's lives, and then the increase in the amount of PVC cable materials, and most of the PVC cable materials are mostly hinderedPoor burning effect, poor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08K13/02C08K5/12C08K5/1515C08K5/523C08K3/22C08K5/13C08K3/38C08K3/26C08K3/34B29C47/92H01B3/44B29C48/92
Inventor 张宇杨阳左士祥
Owner OPTA POLYMER JIANGSU
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