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Flame-retardant polyamide fiber and preparation method thereof

A flame-retardant polyester and fiber technology, applied in the field of flame-retardant fibers, can solve the problems of high cost, inability to balance mechanical properties and flame-retardant properties, and achieve the effects of reducing dosage, improving spinnability and mechanical properties, and expanding surface area

Active Publication Date: 2020-03-27
上海力道新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high cost of blended flame-retardant polyester fibers in the prior art, and the inability to balance mechanical properties and flame-retardant properties, and to provide a flame-retardant polyester fiber and its preparation method

Method used

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  • Flame-retardant polyamide fiber and preparation method thereof
  • Flame-retardant polyamide fiber and preparation method thereof
  • Flame-retardant polyamide fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of flame-retardant polyester fiber, its preparation process is:

[0031] (1) In terms of parts by mass, 93 parts of polyethylene terephthalate, 1.4 parts of melamine cyanurate, 0.3 parts of graphite-like carbon nitride, 0.3 parts of zinc sulfide and 5 parts of 9,10-bis Hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide derivatives were melt blended to prepare flame-retardant polyester chips, in which, 9,10-dihydro-9-oxa-10-phosphaphenanthrene- The structural formula of the 10-oxide derivative is:

[0032]

[0033] (2) Dry and pre-crystallize the flame-retardant polyester chips. The process is as follows: firstly, the temperature is raised from 25 °C to 100 °C at a rate of 5 °C / min, and the temperature is kept for 10 hours. Cool to 25°C;

[0034] (3) Melt spinning and drawing and winding are carried out to obtain flame-retardant polyester fibers. The temperature of melt blending is 275°C, the temperature of melt spinning is 280°C, and the speed of drawing and win...

Embodiment 2

[0037] A kind of flame-retardant polyester fiber, its preparation process is:

[0038] (1) In parts by mass, 92 parts of polyethylene terephthalate, 2 parts of melamine cyanurate, 0.5 part of graphite-like carbon nitride, 0.5 part of zinc diethylphosphinate and 5 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivatives were melt-blended to prepare flame-retardant polyester chips, wherein, 9,10-dihydro-9-oxa-10 - The structural formula of phosphaphenanthrene-10-oxide derivatives is:

[0039]

[0040] (2) Dry and pre-crystallize the flame-retardant polyester chips. The process is as follows: firstly, the temperature is raised from 20 °C to 109 °C at a rate of 7 °C / min, and the temperature is kept for 10 hours. Cool to 20°C;

[0041] (3) Melt spinning and drawing and winding are carried out to obtain flame-retardant polyester fibers. The temperature of melt blending is 260°C, the temperature of melt spinning is 270°C, and the speed of drawing and winding is 30...

Embodiment 3

[0044] A kind of flame-retardant polyester fiber, its preparation process is:

[0045](1) In parts by mass, 95 parts of polytrimethylene terephthalate, 1 part of melamine cyanurate, 0.5 part of graphite-like carbon nitride, 0.5 part of 2-carboxyethylphenyl phosphinate zinc and 3 parts of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivatives were melt-blended to prepare flame-retardant polyester chips, wherein 9,10-dihydro-9-oxa The structural formula of -10-phosphaphenanthrene-10-oxide derivatives is:

[0046]

[0047] (2) Dry and pre-crystallize the flame-retardant polyester chips. The process is as follows: firstly, the heating rate is raised from 15°C to 115°C at a rate of 9°C / min, and the temperature is kept for 10 hours. Cool to 15°C;

[0048] (3) The flame retardant polyester fiber is obtained by melt spinning and drawing and winding, the temperature of melt blending is 270°C, the temperature of melt spinning is 280°C, the speed of drawing and winding is 20...

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Abstract

The invention relates to a flame-retardant polyamide fiber and a preparation method thereof. The preparation method comprises the steps of performing melt blending on polyamide, melamine cyanurate, graphite-like carbon nitride, a zinc compound and a 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) derivative to prepare a flame-retardant polyamide slice, performing melt spinning and drafting winding, or performing melt blending on the substances to prepare flame-retardant masterbatch, adding 8.25-25wt% of the flame-retardant masterbatch in a direct spinning process of the polyester slice or a melt to perform melt spinning and drafting winding, wherein the prepared flame-retardant polyamide fiber is made from the flame-retardant polyamide, and in parts by mass, the flame-retardant polyamide is mainly composed of 92-95.8 parts of the polyamide, 1-2 parts of the melamine cyanurate, 0.1-0.5 parts of the graphite-like carbon nitride, 0.1-0.5 parts of the zinc compound and 3-5 partsof the DOPO derivative. The preparation process is simple, and the prepared flame-retardant polyamide fiber has the relatively good mechanical property and flame retardant property.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant fibers, and relates to a flame-retardant polyester fiber and a preparation method thereof. Background technique [0002] Polyester fiber has occupied a pivotal position in textile raw materials. But polyester fiber is a kind of melting and combustible fiber, so the flame retardancy of polyester fiber has attracted worldwide attention, and it is very necessary to research and develop flame retardant polyester fiber. [0003] The blended flame-retardant polyester fibers that have been industrialized abroad mainly include Firemaster-935 with polybrominated diphenyl ethers as flame retardants and Forflam with phosphorus-containing oligomers as flame retardants. Domestic blended flame-retardant polyester fibers At present, zinc diethylphosphinate and DOPO derivatives are mainly used. The former has poor flame retardant efficiency and affects spinnability, while the latter has good spinnability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/07
CPCD01F6/92D01F1/07
Inventor 彭治汉郭承鑫彭志宏童丽亚彭武清王朝生
Owner 上海力道新材料科技股份有限公司
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