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Novel flame-retardant reinforced PA6 composite material and preparation method thereof

A composite material and a new technology, applied in the field of composite materials, can solve the problems of low flame retardant efficiency and large smoke generation, and achieve the effects of low smoke generation, improved rigidity and good synergy.

Active Publication Date: 2019-01-29
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the background technology, provide a novel flame-retardant reinforced PA6 composite material with excellent mechanical properties and processability and a preparation method thereof, and solve the problem of low flame-retardant efficiency of brominated flame-retardant nylon 6 composite materials, The amount of smoke generated during combustion, and the low flame retardant efficiency of the current halogen-free flame-retardant nylon 6 composite materials, etc.

Method used

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  • Novel flame-retardant reinforced PA6 composite material and preparation method thereof
  • Novel flame-retardant reinforced PA6 composite material and preparation method thereof
  • Novel flame-retardant reinforced PA6 composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A flame-retardant reinforced PA6 composite material, first weigh the following materials in parts by weight:

[0034]

[0035] Put the above materials into the mixer and mix them evenly, then put the mixed materials into the main feeding barrel of the extruder and granulate through the extruder. During the extrusion process, 20 parts of glass fibers are fed through the side Add, keep the vacuum open, the temperature of each temperature zone of the extruder is 210°C (zone 1), 220°C (zone 2), 230°C (zone 3), 235°C (zone 4), 210°C (zone 5), 210°C (six zones), 210°C (seven zones), 220°C (eight zones), 235°C (machine head).

Embodiment 2

[0037] A flame-retardant reinforced PA6 composite material, first weigh the following materials in parts by weight:

[0038]

[0039] Put the above materials into the mixer and mix them evenly, then put the mixed materials into the main feeding barrel of the extruder and granulate through the extruder. During the extrusion process, 20 parts of glass fibers are fed through the side Add, keep the vacuum open, the temperature of each temperature zone of the extruder is 210°C (zone 1), 220°C (zone 2), 230°C (zone 3), 235°C (zone 4), 210°C (zone 5), 210°C (six zones), 210°C (seven zones), 220°C (eight zones), 235°C (machine head).

Embodiment 3

[0041] A flame-retardant reinforced PA6 composite material, first weigh the following materials in parts by weight:

[0042]

[0043] Put the above materials into the mixer and mix them evenly, then put the mixed materials into the main feeding barrel of the extruder and granulate through the extruder. During the extrusion process, 28 parts of glass fibers are fed through the side Add, keep the vacuum open, the temperature of each temperature zone of the extruder is 210°C (zone 1), 220°C (zone 2), 230°C (zone 3), 235°C (zone 4), 210°C (zone 5), 210°C (six zones), 210°C (seven zones), 220°C (eight zones), 235°C (machine head).

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Abstract

The invention discloses a novel flame-retardant reinforced PA6 composite material and a preparation method thereof. The flame-retardant reinforced PA6 composite material of the invention comprises, inparts by weight, 60-80 parts of nylon 6 resin, 10-20 parts of modified MPP, 20-40 parts of glass fiber, 0.3-0.6 part of antioxidant, and 0.3-0.6 part of lubricant. The preparation method of the modified MPP comprises the steps of adding nano silica and phosphoric acid into a high-pressure reaction kettle, conducting a reaction for 2-4 h, then adding MPP, maintaining the pressure and controlling the temperature at 100+ / -5 DEG C, and then adding MA to obtain the modified MPP. The compatibility of MPP in matrix resin is improved and the rigidity of MPP is improved by modifying common commercially available MPP, and the obtained composite material has the characteristics of low density, low smoke density and high CTI value. The finished product is green and friendly to environment.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a novel flame-retardant reinforced PA6 composite material and a preparation method thereof. Background technique [0002] Due to its high tensile strength, excellent impact resistance, good wear resistance, low friction coefficient and chemical resistance, nylon 6 (PA6) has been widely used in the fields of automobiles, national defense, electronic appliances, packaging, etc. It is an important class of engineering plastics. In recent years, with the development of nylon 6 and the implementation of new standards, higher requirements have been put forward for the tensile strength and toughness of nylon 6. At the same time, since nylon 6 is a combustible material, a large amount of heat will be released when burning, accompanied by a large amount of smoke and easy to cause the spread of flames, which will seriously endanger human health and pollute the environment. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K13/06C08K5/3492C08K9/02C08K9/04C08K3/36C08K9/06C08K7/14
CPCC08K3/36C08K5/34928C08K7/14C08K9/02C08K9/04C08K9/06C08K13/06C08K2201/011C08L2201/02C08L2201/22C08L77/02
Inventor 卢津强张天浩车仕君王晓东张旭东
Owner 横店集团得邦工程塑料有限公司