A kind of flame retardant nylon composition

A technology of flame-retardant nylon and its composition, which is applied in the field of nylon spinning, and can solve problems such as hindering the application of nylon, prone to broken filaments, and burrs

Active Publication Date: 2020-06-26
BEIJING INST OF CLOTHING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, after adding the above-mentioned flame retardants to nylon, the spinnability of nylon will be greatly degraded, and phenomena such as broken filaments and burrs will easily occur, which seriously hinders the application of flame-retardant nylon.

Method used

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  • A kind of flame retardant nylon composition
  • A kind of flame retardant nylon composition
  • A kind of flame retardant nylon composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Vacuum dry PA6 slices at 120°C for 12 hours, dry PEPA in a blast oven at 100°C for 2 hours, melt blend and extrude PA6 slices 950g and PEPA samples 50g through a screw extruder, and the temperature of each area of ​​the screw extruder The setting is 180°C-235°C-235°C-230°C in sequence, and water cooling at room temperature obtains a PA6 / PEPA flame-retardant nylon composition casting belt.

[0073] After the extruded PA6 / PEPA flame-retardant nylon composition was cast and pelletized, it was vacuum-dried at 100°C for 10 hours, and then injection-molded into a standard sample to be tested in HAKEE MINI JET of Thermo Scientific Corporation of the United States. The injection molding temperature was 235°C and the mold temperature was 40°C, injection molding pressure 400bar, to obtain a standard sample of flame retardant nylon composition. At the same time, the dried flame-retardant nylon composition can be spun, and the temperature of each area of ​​the spinning machine is s...

Embodiment 2

[0075] The method used in this example is similar to that of Example 1, except that the weight of PA6 chips is 900 g, and the weight of PEPA is 100 g, to obtain a flame-retardant nylon composition.

Embodiment 3

[0077] The method used in this example is similar to that of Example 1, except that the weight of PA6 chips is 850 g, and the weight of PEPA is 150 g, to obtain a flame-retardant nylon composition.

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Abstract

The invention provides a flame retardant nylon composition, wherein the flame retardant nylon composition includes PA6 and pentaerythritol phosphonate. The nylon composition has the advantages of goodspinnability, flame retardancy, fluidity and rheology, and can reduce the spinning temperature and increase the spinning speed.

Description

technical field [0001] The invention relates to the field of nylon spinning, in particular to a flame-retardant nylon composition. Background technique [0002] Nylon, especially nylon 6 (PA6), is widely used in the fields of engineering plastics and chemical fibers due to its good mechanical properties, light weight, good toughness, chemical resistance and durability. With the development of domestic caprolactam synthesis technology and the increase in output, the output and application fields of PA6 will continue to expand. [0003] However, PA6 has the disadvantage of being flammable, which limits its application in electrical components, public places and home textiles. Therefore, PA6 flame retardant modification is an inevitable trend. [0004] Flame retardants commonly used in the prior art include halogenated flame retardants, phosphorus-based flame retardants, phosphorus-nitrogen compound flame retardants, and inorganic silicon-based flame retardants. Among them, ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08K5/521D01F6/90D01F1/07D01D5/08
CPCC08K5/521C08L2201/02C08L2203/12D01D5/08D01F1/07D01F6/90C08L77/02
Inventor 王锐董振峰蔡倩朱志国张秀芹张文娟刘继广
Owner BEIJING INST OF CLOTHING TECH
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