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Enhanced flame-retardant nylon composition with high glow wire initiation temperature and preparation method thereof

A technology of light-off temperature and high glow wire, applied in the field of polymer materials, to achieve the effect of improving light-off temperature, excellent temperature resistance and simple preparation method

Active Publication Date: 2019-03-01
中山市华邦塑料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame retardancy can be enhanced by increasing the ignition temperature of the glow wire, but the substance that can enhance the flame retardancy may not necessarily increase the ignition temperature of the glow wire

Method used

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  • Enhanced flame-retardant nylon composition with high glow wire initiation temperature and preparation method thereof
  • Enhanced flame-retardant nylon composition with high glow wire initiation temperature and preparation method thereof
  • Enhanced flame-retardant nylon composition with high glow wire initiation temperature and preparation method thereof

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preparation example Construction

[0023] Preparation Example of Nylon Composition

[0024] The nylon composition of preparation embodiment 1-embodiment 4, comparative example 1 and comparative example 2 as shown in table 1, preparation method comprises the steps:

[0025] 1) Dry the polyamide 66 resin at 102°C for 4 hours, weigh the dried polyamide 66 resin, weigh the composite flame retardant, glow wire ignition temperature increaser antioxidant and lubricant, and add them to the high-speed mixer Mix, 4min, obtain mixed material;

[0026] 2) Add the mixed material from the main feeding port of the twin-screw extruder, add the glass fiber from the side feeding port of the twin-screw extruder, and the processing temperature of each zone of the twin-screw extruder is 220-260°C , the rotation speed of the screw is 200-250r / min, extruded into pellets, water-cooled, blow-dried, and then pelletized to obtain a reinforced flame-retardant nylon composition with a high glow-wire ignition temperature, which is injected...

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Abstract

The invention discloses anenhanced flame-retardant nylon composition with a high glow wire initiation temperature. The enhanced flame-retardant nylon composition is prepared from the following components in parts by mass: 35 to 53 parts of polyamide 66 resin, 15 to 25 parts of a composite flame retardant, 5 to 10 parts of a glow wire initiation temperature improvement agent, 25 to 30 parts of glass fibers, 0.2 to 1 part of an antioxidant and 0.3 to 1 part of a moistening agent. The enhanced flame-retardant nylon composition belongs to the technical field of high molecule materials. By adoptingthe enhanced flame-retardant nylon composition, the glow wire initiation temperature (GWIT) can be improved remarkably, and meanwhile superior temperature resistance, machining performance and coloring performance of the bromine-antimony flame retardant nylon composition are kept.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a reinforced flame-retardant nylon composition with a high glow-wire ignition temperature and a preparation method thereof. Background technique [0002] Glass fiber reinforced nylon has excellent mechanical strength, impact performance, heat resistance, wear resistance, and has the characteristics of good insulation performance, low relative density, and simple processing. It is currently widely used in the fields of electronics, communication equipment, and electromechanical equipment. . However, nylon is an organic polymer material, which is flammable and easy to cause fire. However, electrical equipment inevitably has the risk of short circuit, overload and other failures during use, resulting in heat generation and sparks, which may cause fire hazards. Therefore, most of the nylon used in electrical equipment is High vertical burning performance and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L25/06C08K13/04C08K3/22C08K5/03C08K5/3492C08J5/04
CPCC08J5/043C08J2377/06C08J2425/06C08K3/2279C08K5/03C08K5/34928C08K13/04C08K2003/2224
Inventor 雷华爱危贵明
Owner 中山市华邦塑料有限公司
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