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Flame-retardant non-reinforced nylon with high glow wire and high CTI (comparative tracking index) value, and preparation method thereof

A high glow wire, nylon technology, applied in high CTI value flame retardant non-reinforced nylon and its preparation, in the field of high glow wire, to achieve high CTI characteristics, high glow wire temperature, and good technical applicability.

Inactive Publication Date: 2013-09-25
GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the CTI of general flame-retardant nylon on the market is only 100-200V, which limits the application of nylon in some relatively demanding electrical appliances.

Method used

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  • Flame-retardant non-reinforced nylon with high glow wire and high CTI (comparative tracking index) value, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A high glow wire, high CTI value flame retardant non-reinforced nylon, its formula composition is shown in Table 1:

[0030] Table 1 Nylon formulation

[0031] raw material

Embodiment 2

[0033] A high glow wire, high CTI value flame retardant non-reinforced nylon, its formula composition is shown in Table 2:

[0034] Table 2 nylon formula

[0035] raw material

[0036] brominated polystyrene

Embodiment 3

[0038] A high glow wire, high CTI value flame retardant non-reinforced nylon, its formula composition is shown in Table 3:

[0039] Table 3 Nylon formulation

[0040] raw material

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PUM

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Abstract

The invention relates to the technical field of a high polymer material, and discloses a flame-retardant non-reinforced nylon with a high glow wire and a high CTI (comparative tracking index) value. The flame-retardant non-reinforced nylon comprises the following components in parts by weight: 30-50 parts of PA6, 25-35 parts of PA66, 18-28 parts of fire retardant, 3-6 parts of flame retardant synergist, 5-10 parts of halogen-free flame retardant, 2-4 parts of flexibilizer, 0.1-0.3 part of oxidant, and 0.3-0.6 part of lubricating agent. The invention also discloses a preparation method of the nylon. By adopting the flame-retardant non-reinforced nylon with the high glow wire and the high CTI value disclosed by the invention, on the one hand, the flame retardant property of the nylon is enhanced; and meanwhile, the glow wire initiation temperature (GWIT) and the comparative tracking index (CTI) are improved; and on the other hand, the mechanical property and the processability of the nylon are not damaged or reduced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant non-reinforced nylon with high glow wire and high CTI value and a preparation method thereof. Background technique [0002] Nylon, the Chinese name is polyamide, and the English name is PA. There are many varieties of PA, including PA6, PA66, PA11, PAl2, PA46, PA610, PA612, PAl010, etc., as well as many new varieties such as semi-aromatic nylon PA6T and special nylon developed in recent years. Nylon is an engineering plastic with a wide range of applications, especially in electronic appliances. In electronic appliances, nylon materials have requirements for flame retardancy, glow wire ignition temperature (GWIT) and comparative tracking index (CTI). [0003] The current modified nylon is generally flame retardant, but the flame retardant modification of nylon will lead to a sharp drop in the CTI value of the nylon material, and there will be dangers...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L25/06C08K13/02C08K5/03C08K5/3492C08K3/22B29C47/92B29C48/92
CPCB29C48/0022B29C48/04B29C48/40B29C48/625B29C48/911
Inventor 廖乾明姚大爱杨子江张钊鹏郑崇深张海勇陈基武陈跃黄强林嗣鑫
Owner GUANGDONG SHUNDE SHUNYAN NEW MATERIALS