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Preparation method of graphene flame retardant chinlon

A graphene and graphene coating technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, single-component polyamide man-made filaments, etc., can solve the problem of poor durability of the flame-retardant effect of nylon fibers, difficulty in industrialized production, and complicated production processes, etc. problem, to achieve the effect of good flame retardant effect, low cost and high economic benefit

Inactive Publication Date: 2018-04-03
福州市晋安区技智企业管理咨询有限公司
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Problems solved by technology

[0005] In order to overcome the problems of poor flame-retardant effect and durability of nylon fiber in the prior art, complex production process, high cost, and difficulty in industrialized production, the invention discloses a preparation method of graphene flame-retardant nylon, and the prepared flame-retardant nylon The fiber has high strength, high elongation at break and good flame retardant effect, including the following steps:

Method used

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  • Preparation method of graphene flame retardant chinlon
  • Preparation method of graphene flame retardant chinlon
  • Preparation method of graphene flame retardant chinlon

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preparation example Construction

[0028] The preparation method of graphene flame-retardant nylon in the present embodiment, the prepared flame-retardant nylon fiber has high strength, high elongation at break performance and better flame-retardant effect, comprises the following steps:

[0029] Step 1: Add the coupling agent to 95% ethanol aqueous solution to obtain a treatment solution, then add graphene, inorganic flame retardant, and glass fiber to the treatment solution, and add ammonia to adjust the pH value at 10 to 12, and stir at a high speed Obtain graphene flame retardant composite material;

[0030] Step 2: After the composite material is mechanically stirred and evaporated at 80-90°C until the mixture becomes viscous, it is dried at 50-60°C for 12 hours to obtain graphene-coated inorganic flame retardant composite material powder;

[0031] Step 3: Mix nylon slices with graphene-coated inorganic flame retardant composite material powder at high speed, twin-screw extrusion, and granulate;

[0032] ...

Embodiment 1

[0047] The preparation method of graphene flame-retardant nylon in the present embodiment, comprises the steps:

[0048] Step 1: Add the coupling agent to 95% ethanol aqueous solution to obtain a treatment solution, then add graphene, inorganic flame retardant, and glass fiber to the treatment solution, and add ammonia to adjust the pH value at 10 to 12, and stir at a high speed Obtain graphene flame retardant composite material;

[0049] Step 2: After the composite material is mechanically stirred and evaporated at 80-90°C until the mixture becomes viscous, it is dried at 50-60°C for 12 hours to obtain graphene-coated inorganic flame retardant composite material powder;

[0050] Step 3: Mix nylon slices with graphene-coated inorganic flame retardant composite material powder at high speed, twin-screw extrusion, and granulate; the stirring speed of high-speed mixing is 10,000 rpm, and the stirring time is 2 minutes.

[0051]Step 4: After the nylon masterbatch is dried, it is ...

Embodiment 2

[0054] The preparation method of graphene flame-retardant nylon in the present embodiment, comprises the steps:

[0055] Step 1: Add the coupling agent to 95% ethanol aqueous solution to obtain a treatment solution, then add graphene, inorganic flame retardant, and glass fiber to the treatment solution, and add ammonia to adjust the pH value at 10 to 12, and stir at a high speed Obtain graphene flame retardant composite material;

[0056] Step 2: After the composite material is mechanically stirred and evaporated at 80-90°C until the mixture becomes viscous, it is dried at 50-60°C for 12 hours to obtain graphene-coated inorganic flame retardant composite material powder;

[0057] Step 3: Mix nylon slices with graphene-coated inorganic flame retardant composite material powder at high speed, twin-screw extrusion, and granulate; the stirring speed of high-speed mixing is 10,000 rpm, and the stirring time is 2 minutes.

[0058] Step 4: After the nylon masterbatch is dried, it is...

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Abstract

The invention discloses a preparation method of graphene flame-retardant nylon, which belongs to the field of synthetic fibers and comprises the following steps: adding a coupling agent to 95% ethanol aqueous solution, adding graphene, an inorganic flame retardant, and glass fiber, And add ammonia water to adjust the pH value at 10-12, and stir at a high speed to obtain a graphene flame-retardant composite material; mechanically stir and evaporate at 80-90°C until the mixture is viscous, then dry at 50-60°C for 12 hours to obtain graphite Graphene-coated inorganic flame retardant composite material powder; Nylon chips and graphene-coated inorganic flame retardant composite material powder are mixed at high speed, twin-screw extruded and granulated; the composite masterbatch is spun and then slowly cooled Forming, oiling, stretching and winding, storage. The beneficial effect of the invention is: graphene has a high specific surface area, so that the inorganic flame retardant is evenly spread on the surface of the graphene instead of disordered stacking, so that the use of graphene can reduce the usage amount of the inorganic flame retardant.

Description

technical field [0001] The invention relates to the field of synthetic fiber production, in particular to a method for preparing graphene flame-retardant nylon. Background technique [0002] With the development of science and technology and the advancement of the textile industry, the types of textiles are increasing, and their application scope and quantity have increased significantly, from people's daily life to industry, transportation, military and many other fields. As a result, the age-old problem of burning textiles into disasters has become more and more important. According to the results of fire investigations, the fires caused by the ignition and spread of textiles without flame retardancy account for more than 20% of fire accidents. Therefore, how to reduce the danger of textile combustion and the release of toxic gases during combustion can reduce people's lives and property The loss has aroused the attention and attention of all mankind. [0003] Graphene i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/07
CPCD01F6/90D01F1/07
Inventor 郑小华
Owner 福州市晋安区技智企业管理咨询有限公司
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