Wear-resistant halogen-free flame-retardant elastic material for high-speed elevator flat cable and preparation method thereof

An elastic material and elastomer technology, applied in circuits, electrical components, rubber insulators, etc., can solve the problems of human health hazards, harmful substances, environmental hazards, etc., and achieve the effects of simple process, low cost, and easy operation.

Active Publication Date: 2014-06-25
JIANGSU DEWEI ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the materials used in the existing high-speed elevator flat cables are PVC flat cable elastic materials, but the PVC elastic materials have the following defects: a large amount of harmful substances will be produced during manufacture, use and disposal, which will cause certain harm to human health; When burning, it emits a large amount of thick smoke, which will suffocate people, and produces some carcinogens and HCl gas, which will cause serious harm to the environment.

Method used

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  • Wear-resistant halogen-free flame-retardant elastic material for high-speed elevator flat cable and preparation method thereof
  • Wear-resistant halogen-free flame-retardant elastic material for high-speed elevator flat cable and preparation method thereof
  • Wear-resistant halogen-free flame-retardant elastic material for high-speed elevator flat cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example provides a method for preparing a wear-resistant halogen-free flame-retardant elastic material. The raw materials and dosages used are shown in Table 1, wherein:

[0028] EPDM rubber: The mass content of ethylene is 70%, the mass content of the third monomer is 4.9%, and the Mooney viscosity of EPDM is 25. Among them, EPDM comes from Dow Chemical;

[0029] Compatibilizer: Maleic anhydride grafted EPDM copolymer with Shore A hardness of 72;

[0030] Functional elastomer: composed of TPU and SEBS at a mass ratio of 1:0.6, among which, TPU comes from BASF, and SEBS comes from Yueyang Petrochemical;

[0031] Melt softener: choose ethylene-vinyl acetate copolymer with a melt index of 20g / 10min, and the melt index is obtained by testing at 190°C and 21.6KG pressure;

[0032] Flame retardant: It is composed of surface-treated aluminum hydroxide and surface-treated magnesium hydroxide in a mass ratio of 1:2. Among them, the surface-treated aluminum hydroxide come...

Embodiment 2

[0039] This example provides a preparation method of a wear-resistant halogen-free flame-retardant elastic material. The raw materials and dosage used are shown in Table 1. The raw materials other than EPDM rubber and functional elastomer are the same as those in Example 1.

[0040] In this example, the EPDM rubber has a mass content of 67% of ethylene, a mass content of the third monomer of 4.9%, and the Mooney viscosity of the EPDM rubber is 60.

[0041] In this example, the functional elastomer is composed of TPU and SEBS at a mass ratio of 1:1.

[0042] The preparation process of the wear-resistant halogen-free flame-retardant elastic material is the same as that in Example 1.

Embodiment 3

[0044] This example provides a preparation method of a wear-resistant halogen-free flame-retardant elastic material. The raw materials and dosages used are shown in Table 1. The raw materials other than the compatibilizer, melt softener and antioxidant are the same as in Example 1.

[0045] In this example, the compatibilizer is a maleic anhydride grafted ethylene-vinyl acetate copolymer with a Shore A hardness of 85.

[0046] In this example, the melt softener is an ethylene-octene copolymer with a melt index of 20g / 10min, and the melt index is obtained by testing at 190°C and a pressure of 21.6KG.

[0047] In this example, the antioxidant is composed of antioxidant DLTP and antioxidant 1010 in a mass ratio of 1:0.5.

[0048] The preparation process of the wear-resistant halogen-free flame-retardant elastic material is the same as that in Example 1.

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Abstract

The invention relates to a wear-resistant halogen-free flame-retardant elastic material for a high-speed elevator flat cable and a preparation method thereof. The wear-resistant halogen-free flame-retardant elastic material disclosed by the invention contains the following raw material ingredients in parts by weight: 40-60 parts of EPDM (Ethylene-Propylene-Diene Monomer), 10-20 parts of compatibilizer, 10-35 parts of functional elastomer, 5-25 parts of melt softener, 60-100 parts of flame retardant, 2-5 parts of flame-retardant and wear-resistant synergist, 0.5-2 parts of antioxidant and 0.5-3.5 parts of lubricant. According to the wear-resistant halogen-free flame-retardant elastic material disclosed by the invention, the functional elastomer is a mixture of TPU (Thermoplastic Polyurethane) and SEBS (Styrene-Ethylene-Butadiene-Styrene block copolymer), the physical and mechanical properties, heat resistance and wear resistance of the product can be improved due to the mixture, and the final performance of the product fully meets the requirements of materials for the high-speed elevator flat cable, so that the product can replace the existing PVC (Polyvinyl Chloride) flat cable elastic materials and is halogen-free and environmental-friendly. The preparation method disclosed by the invention is simple in process, easy in operation and low in cost.

Description

technical field [0001] The invention relates to a wear-resistant, halogen-free and flame-retardant elastic material for high-speed elevator flat cables and a preparation method thereof. Background technique [0002] High-speed elevator flat cables require the following performance requirements: wear resistance, halogen-free flame retardant, high and low temperature resistance, softness, good mechanical properties, good processing technology, and fast extrusion speed. Most of the materials used in the existing high-speed elevator flat cables are PVC flat cable elastic materials, but the PVC elastic materials have the following defects: a large amount of harmful substances will be produced during manufacture, use and disposal, which will cause certain harm to human health; When burning, it will emit a large amount of thick smoke, which will suffocate people, and produce some carcinogens and HCl gas, which will cause serious harm to the environment. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L51/06C08L75/04C08L53/02C08L23/08H01B3/28C08K13/06C08K9/00C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92704C08L23/16C08L2201/02C08L2201/22C08L2203/202C08L2205/035H01B3/28C08L51/06C08L75/04C08L53/02C08K13/06C08K9/00C08K2003/2227C08K2003/2224C08K3/34C08K9/10C08K2003/026C08K3/2279B29B7/46B29B7/72B29B7/7461B29B9/12B29C48/04B29C48/40B29C48/875B29C2948/92828B29C2948/92895B29C2948/92904C08K3/22C08L23/0853H01B3/441
Inventor 陈敏张丽本栾珊珊顾金云王兴宁邓之俊谢伟斌
Owner JIANGSU DEWEI ADVANCED MATERIALS
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