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High flaming retarding MPP power protecting tube

A power protection and high flame retardant technology, applied in the field of high flame retardant MPP power protection tubes, can solve the problems of high elasticity of melt extrusion and large flexibility of PP molecular chains, so as to improve the degree of crystallization, rigidity and lubricity Effect

Inactive Publication Date: 2014-10-08
安徽宁国市高新管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a thermoplastic resin with excellent comprehensive properties, polypropylene (PP) has the advantages of abundant raw material sources, good mechanical properties, low density, and good chemical stability. It is widely used in the plastics and fiber industries. However, due to the flexibility of the PP molecular chain Large, melt extrusion elasticity is large, which limits the application of PP to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The high flame-retardant MPP power protection pipe of the present invention has a raw material composition as shown in Example 1 in Table 1, and the modified whisker is a surfactant-modified basic magnesium sulfate whisker, and is prepared by the following process: Add 13 parts of basic magnesium sulfate whiskers and 166ml of deionized water in the three-necked flask while stirring, then add 0.5 parts of calcium dodecylbenzenesulfonate and 1 part of dimethyl azobisisobutyrate, and heat to 70 °C, add 19 parts of methacrylate within 1 hour, then suction filter, wash and dry to obtain modified whiskers;

[0026]According to the ratio of raw materials in Example 1 in Table 1, the high flame-retardant MPP power protection pipe is prepared according to the following preparation process: each raw material is added to a high-speed mixer at the same time and mixed for 10 minutes to obtain a mixture; The temperature of the front roll of the mill is 50°C, the temperature of the re...

Embodiment 2

[0028] The high flame-retardant MPP power protection pipe of the present invention has a raw material composition as shown in Example 2 in Table 1, wherein the modified micro-silica powder modifier adopts KH-550; the particle diameter of the nano-mica adopts 56nm; The modifying agent of the modified shell powder adopts furfural;

[0029] The modified whiskers are surfactant-modified basic magnesium sulfate whiskers, and are prepared by the following process: 10 parts of basic magnesium sulfate whiskers and 150 ml of deionized water are added in a three-necked flask while stirring, and then 0.3 Part of sodium dodecylbenzene sulfonate, 0.2 part of dialkylbenzene sodium sulfonate and 0.5 part of benzoyl peroxide, heated to 90°C, adding 16 parts of methacrylate within 1.1h, suction filtration, washing, drying to obtain modified whiskers;

[0030] According to the ratio of raw materials in Example 2 in Table 1, the high flame-retardant MPP electric power protection pipe is prepare...

Embodiment 3

[0032] The high flame-retardant MPP power protection pipe of the present invention has a raw material composition as shown in Example 3 in Table 1, wherein the modified micro-silica powder modifiers are KH-151 and KH-171; the nano-mica The particle diameter is 68nm; The modifying agent of described modified shell powder is pimelic acid and glutaric acid;

[0033] The modified whiskers are surfactant-modified basic magnesium sulfate whiskers, and are prepared by the following process: 15 parts of basic magnesium sulfate whiskers and 250 ml of deionized water are added in a three-necked flask while stirring, and then 0.8 1 part of sodium dialkylbenzenesulfonate, 0.5 part of sodium persulfate and 0.4 part of ammonium persulfate, heated to 72°C, adding 20 parts of methacrylate within 1.5 hours, then suction filtered, washed and dried to obtain modified whiskers ;

[0034] According to the ratio of raw materials in Example 3 in Table 1, the high flame-retardant MPP electric power ...

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Abstract

The invention discloses a high flaming retarding MPP power protecting tube which comprises the following raw materials in parts by weight: 100-130 parts of polypropylene, 10-25 parts of talcum powder, 3-15 parts of brucite powder, 5-15 parts of modified silica fume, 0.3-2 parts of colorant, 5-15 parts of nano mica, 0.5-2 parts of an antioxidant, 0.5-3 parts of polytetrafluoroethylene, 15-40 parts of modified shell powder, 10-25 parts of cyanuric acid melamine, 10-25 parts of modified crystal whisker, 15-30 parts of long glass fiber, 3-8 parts of expandable graphite and 5-20 parts of inrumescent flame retardant. The high flaming retarding MPP power protecting tube disclosed by the invention is excellent in flame retardancy, impact resistance, aging resistance, cold resistance and thermal resistance.

Description

technical field [0001] The invention relates to the technical field of power protection tubes, in particular to a high flame-retardant MPP power protection tube. Background technique [0002] As a thermoplastic resin with excellent comprehensive properties, polypropylene (PP) has the advantages of abundant raw material sources, good mechanical properties, low density, and good chemical stability. It is widely used in the plastics and fiber industries. However, due to the flexibility of the PP molecular chain Large, the melt extrusion elasticity is large, which limits the application of PP to a certain extent. In order to improve the processing performance of polypropylene and expand its application range, a lot of research has been done on modified PP at home and abroad. [0003] The power protection tube is an important component in the electric field. The power protection tube made of modified polypropylene still has deficiencies in terms of flame retardancy, electrical i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L27/18C08K13/06C08K9/06C08K9/04C08K7/14C08K3/34C08K3/22C08K5/3492C08K3/04C08K7/08C08K3/30
CPCC08K2201/003C08K2201/011C08L23/12C08L2201/02C08L2203/18C08L2203/20C08L27/18C08K13/06C08K9/06C08K9/04C08K7/14C08K3/34C08K2003/2224C08K3/36C08K5/34928C08K3/04C08K7/08C08K2003/3063C08K2003/265
Inventor 金立胜
Owner 安徽宁国市高新管业有限公司
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