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Flame-retarding smoke-inhibiting PVC composition used for electric line and electric cable and preparation method thereof

A polyvinyl chloride, wire and cable technology, applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor flame retardant effect and poor smoke suppression effect

Inactive Publication Date: 2006-04-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People such as Carty discussed in Engineering Plastics.1995,8 (4) that stannate, basic iron oxide, ammonium molybdate can effectively suppress the amount of smoke generated when the polyvinyl chloride material burns, but the resistance of the composition Poor combustion effect; Begle used hydroxystannate, aluminum hydroxide and magnesium hydroxide as smoke suppressants for PVC materials in Fire and Materials 1997, Vol.21 and effectively improved its oxygen index, but the composition The smoke suppression effect is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one (investigate the flame retardant smoke suppression effect of flame retardant smoke suppressant)

[0020] The components such as polyvinyl chloride (100 parts), DOP (40 parts), stabilizer (6 parts), lubricant (2 parts) and flame retardant and smoke suppressant (variable) are used in a kneader and a hot press, etc. Compressed into flame-retardant and smoke-suppressing PVC samples containing different contents of flame-retardant and smoke-suppressing agents. The content of flame retardant and smoke suppressant Y is shown in Table 2, and the corresponding oxygen index and smoke density values ​​are shown in Table 3.

[0021] serial number

[0022] Preface

Embodiment 2

[0024] Polyvinyl chloride (100 parts), DOP (40 parts), stabilizer (6 parts), lubricant (2 parts), flame retardant and smoke suppressant X (50 parts) and phosphate plasticizer (variable), etc. The components are pressed into a flame-retardant and smoke-suppressing PVC sample using kneader, hot press and other equipment. The content of phosphate plasticizers is shown in Table 4, and the test results are shown in Table 5.

[0025] serial number

[0026] serial number

Embodiment 3

[0028] Polyvinyl chloride (100 parts), DOP (40 parts), stabilizer (6 parts), lubricant (2 parts), flame retardant and smoke suppressant X (50 parts) and phosphate plasticizer (3 parts) Low-temperature resistant impact modifier (variable) and other components were pressed into flame-retardant and smoke-suppressing PVC samples using kneader, hot press and other equipment. The content of impact modifier is shown in Table 6, and the test results are shown in Table 7.

[0029] serial number

[0030] serial number

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PUM

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Abstract

The invention relates to fireproof smoke inhibition PVC composite for electric wire and cable, which comprises: 100 PVC; 1-5 fireproof smoke inhibition agent composed of 1-20 zinc stannate, 3-20 water glass and 100-60 aluminum hydroxide; 30-45 plasticizer as mixture of dioctyl phthalate, diethyl phthalate, and phosphate ester; and 5-20 heat stabilizer.

Description

technical field [0001] The invention relates to a flame-retardant and smoke-suppressing polyvinyl chloride composition for electric wires and cables and a preparation method thereof, belonging to the technical field of plastic processing and application. Background technique [0002] Polyvinyl chloride is a synthetic thermoplastic polymer, which has the advantages of good processing performance, flame retardant, and low price, so it is widely used in wire and cable, plastic doors and windows, plastic pipes, etc. [0003] However, because the chlorine content of polyvinyl chloride is as high as 56%, it will release high-concentration toxic smoke when it burns, hindering the line of sight, affecting escape and fire fighting, and even directly causing death. Moreover, when polyvinyl chloride is used to prepare soft products, due to the need to add a large amount of plasticizer, it loses its flame-retardant properties, and even becomes a flammable material, and the generation of...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K5/12H01B3/44
Inventor 张建民裴小静王日辉桂俊杰张瑜
Owner CHINA PETROLEUM & CHEM CORP
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