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Flame-retardant fiber reinforced nylon 6 material and preparation method thereof

A technology of flame-retardant fiber and flame-retardant synergist, which is applied in the field of flame-retardant nylon materials, and can solve problems such as complex operation and processing technology

Active Publication Date: 2020-04-10
JIANGSU JICUI ADVANCED POLYMER MATERIAL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the operation and processing technology are complicated, and it is not as common as the additive flame retardant method in practical applications.

Method used

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  • Flame-retardant fiber reinforced nylon 6 material and preparation method thereof
  • Flame-retardant fiber reinforced nylon 6 material and preparation method thereof
  • Flame-retardant fiber reinforced nylon 6 material and preparation method thereof

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Experimental program
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preparation example Construction

[0050] The preparation method of the nylon 6 material reinforced by the above-mentioned flame retardant fiber may further comprise the steps:

[0051] Add nylon 6, environment-friendly flame retardant, flame retardant synergist, lubricant, and antioxidant into the mixer and stir evenly to obtain a premix; add the premix to the feeder hopper of the twin-screw extruder, melt and mix Extruding to the impregnating mold, meanwhile, the long fiber is pulled out after contacting and mixing with the molten mixture in the impregnating mold, so as to obtain the nylon composite material. Since the nylon material contains more amino groups at the end, the carboxyl group on the surface of the silicon oxide in the flame-retardant fiber can undergo condensation reaction with the amine group of the nylon material during the kneading process, effectively improving the flame-retardant fiber. The dispersion and cross-linking of flame-retardant fibers in nylon materials improve the flame-retardan...

Embodiment 1

[0053] Prepare according to weight percentage: nylon 6 21%, long fiber 60.5%, environment-friendly flame retardant 13%, flame retardant synergist 3%, lubricant 1.4%, antioxidant 1.1%. The environmentally friendly flame retardant is MCA; the flame retardant synergist is zinc borate; the lubricant is EBS; the antioxidant is 1010 / 168 in a weight ratio of 2:1.

[0054] Among them, the long fiber is mixed with alkali-free long glass fiber and polyphenylene sulfide fiber with flame-retardant properties according to the weight ratio of 3:2. The polyphenylene sulfide fiber is prepared according to the following method: S1, in parts by weight, mix 50 parts of polyphenylene sulfide, 45 parts of deionized water, 10 parts of nano-silicon dioxide, and 4 parts of polyvinyl alcohol, and heat up to 85°C And stir evenly, add the obtained mixed solution into the electrospinning equipment, spin under the condition of voltage 10KV, and the distance between the spinning head and the receiving plat...

Embodiment 2

[0057] Prepared according to weight percentage: 63% of nylon 6, 20.7% of long fiber, 12.2% of environmentally friendly flame retardant, 2.2% of flame retardant synergist, 1.1% of lubricant, and 0.8% of antioxidant. The environmentally friendly flame retardant is MCA; the flame retardant synergist is zinc borate; the lubricant is EBS; the antioxidant is 1010 / 168 in a weight ratio of 2:1.

[0058] Among them, the long fiber is mixed with alkali-free long glass fiber and polyphenylene sulfide fiber with flame-retardant properties according to the weight ratio of 3:2. The polyphenylene sulfide fiber is prepared according to the following method: S1, in parts by weight, mix 60 parts of polyphenylene sulfide, 65 parts of deionized water, 15 parts of nano-silica, and 10 parts of polyvinyl alcohol, and heat up to 95°C And stir evenly, add the obtained mixed solution into the electrospinning equipment, spin under the condition of voltage 30KV, and the distance between the spinning head...

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Abstract

The invention relates to a flame-retardant fiber reinforced nylon 6 material and a preparation method thereof, and belongs to the technical field of flame-retardant nylon materials. The flame-retardant fiber reinforced nylon 6 material is prepared from the following components in percentage by weight: 11-78.8% of nylon 6, 10-60% of long fiber, 10-20% of an environment-friendly flame retardant, 1-5% of a flame-retardant synergist, 0.1-2% of a lubricant and 0.1-2% of an antioxidant. According to the invention, the composite fibers are used as a reinforcing material, the glass fibers in the composite fibers can effectively improve the mechanical properties of a nylon material, polyphenylene sulfide nanofibers with flame retardant properties are added, and polyphenylene sulfide belongs to a thermoplastic material and has good mechanical properties, so that the flame retardant properties of the nylon material can also be improved.

Description

technical field [0001] The invention relates to a flame-retardant fiber-reinforced nylon 6 material and a preparation method thereof, belonging to the technical field of flame-retardant nylon materials. Background technique [0002] Nylon, that is, polyamide (PA), is a polymer compound containing amide groups (-NHCO-) ​​in the main chain. It is an important engineering resin and ranks among the top five general-purpose engineering plastics (PA, PC, POM, PBT / PET, PPO ), it is widely used in daily life and industrial fields. According to the number of carbon atoms in the polyamide unit chain, it can be divided into PA6, PA11, PAl2 and so on. Among them, PA6 and PA66 are the most widely used and have the largest output. Nylon has high mechanical strength, high melting point, wear resistance, oil resistance and general organic solvents, and excellent heat resistance. Due to the amide group in the molecular structure, it has good flame retardancy. According to ASTMD635 test...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L81/02C08K7/14C08K3/36C08K3/38C08K5/134C08K5/526C08K13/04C08J5/04D01F6/94D01F1/07D01F11/08
CPCC08J5/043C08J5/046D01F6/94D01F1/07D01F11/08C08J2377/02C08J2481/02C08K7/14C08K3/36C08K2003/387C08K5/1345C08K5/526C08K13/04
Inventor 吴建国刘渊陈荣闻辉
Owner JIANGSU JICUI ADVANCED POLYMER MATERIAL RES INST CO LTD
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