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Glass fiber reinforced nylon halogen-free flame retardant masterbatch and preparation method and application thereof

A flame retardant masterbatch, nylon technology, applied in the field of its preparation, halogen-free flame retardant masterbatch for glass fiber reinforced nylon, can solve the problems of low decomposition temperature, easy foaming, inability to achieve, avoid chemical changes, The effect of expanding the scope of application and reducing the cost

Active Publication Date: 2019-04-05
HANGZHOU JLS FLAME RETARDANTS CHEM +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its halogen-free flame retardant uses MCA, which has a low decomposition temperature and is prone to foaming in glass fiber reinforced nylon 66. At the same time, the flame retardant grade of MCA in glass fiber reinforced nylon can only reach UL94V2, not UL94-V0

Method used

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  • Glass fiber reinforced nylon halogen-free flame retardant masterbatch and preparation method and application thereof
  • Glass fiber reinforced nylon halogen-free flame retardant masterbatch and preparation method and application thereof

Examples

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Embodiment Construction

[0019] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] The PA mentioned in the present invention is nylon, PA6 is polycaprolactam, PA66 is polyhexamethylene adipamide, PA11 is nylon PA11, and POE grafted maleic anhydride is polyolefin elastomer grafted maleic anhydride, or EPDM grafted maleic anhydride is EPDM grafted maleic anhydride. EBS is ethylene bis stearic acid amide, and TAF is an anti-glass fiber exposure agent.

[0021] The preparation method of the glass fiber reinforced nylon halogen-free flame retardant masterbatch of embodiment 1 to embodiment 7 is as follows:

[0022] Weigh the resin carrier, antioxidant and rheological additive according to the amount of the formula and mix them uniformly, then add them into the twin-screw extruder throu...

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Abstract

The invention provides a glass fiber reinforced nylon halogen-free flame-retardant masterbatch and a preparation method and application thereof. The glass fiber reinforced nylon halogen-free flame-retardant masterbatch comprises 20.0%-48.0% of resin carrier, 50%-75% of fire retardant of melamine polyphosphate and derivative thereof, 0.1%-2% of acid acceptor, 0.1%-5% of lubricant, 0.2%-0.6% of antioxygen and 0.0%-1% of rheological additive. The glass fiber reinforced nylon halogen-free flame-retardant masterbatch has the advantages that stability of the fire retardant of melamine polyphosphateand derivative thereof in halogen-free flame-retardant glass fiber reinforced nylon shearing and extruding processes is improved, contacts of the fire retardant of melamine polyphosphate and derivative thereof and organic aluminum hypophosphite fire retardant in the processes are reduced, and degradation and color changes of the nylon are reduced.

Description

technical field [0001] The invention relates to the technical field of flame-retardant modification of polymer materials, in particular to a halogen-free flame-retardant masterbatch for glass fiber reinforced nylon, its preparation method and its application. Background technique [0002] Glass fiber reinforced nylon engineering plastics are widely used in automobiles, rail transit, electronics and electrical fields, and can be used to manufacture contactors, relays, electrical casings, automotive interior connectors, and internal parts of household appliances. However, in the field of electronic appliances, higher requirements are put forward for the flame retardancy of nylon, especially the so-called "candle wick effect" is prone to occur when glass fiber reinforced nylon materials are burned, making the materials easier to burn. So far, most of the flame retardant solutions for glass fiber reinforced nylon are based on halogen-containing compounds. The dense smoke, toxici...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K13/06C08K5/3492C08K3/22C08K3/38C08K5/20C08K5/098C08K5/5313C08K5/526C08K7/14C08J5/04C08J5/10C08J3/22
CPCC08J3/226C08J5/043C08J5/10C08J2377/02C08K5/098C08K5/20C08K5/34928C08K5/526C08K5/5313C08K13/06C08K2003/2296C08K2003/387C08K2201/014
Inventor 裘雪阳梁忠立朱峰胡燕邵江斌
Owner HANGZHOU JLS FLAME RETARDANTS CHEM
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