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Fireproof fiber and preparation method thereof

A fire-resistant fiber and modification technology, applied in the field of fiber spinning, can solve the problems of too large difference in the physical and chemical properties of flame retardants, difficult to distribute the flame retardant evenly, and unsatisfactory fire prevention effect, etc., to promote the bonding force and grafting. The effect of good reaction, fireproof effect and high environmental protection performance

Inactive Publication Date: 2019-02-22
安徽碧深高纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional polyester fibers mainly use PET and flame retardants to achieve the purpose of fire prevention. However, because the physical and chemical properties of flame retardants and PET are too different, the compatibility of the two systems is not high, and the flame retardant The agent is difficult to evenly distribute in the polyester fiber, and the fireproof effect is not ideal enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A fireproof fiber, comprising the following raw materials by mass fraction: PET75kg, color masterbatch 25kg, modified flame retardant 23kg, the modified flame retardant includes ammonium polyphosphate and triphenyl phosphate.

[0019] Further, the modified flame retardant also includes a photoinitiator, a dispersant, and a toughening agent.

[0020] Further, based on the PET content, the contents of each component of the modified flame retardant are as follows: 5 kg of ammonium polyphosphate, 8 kg of triphenyl phosphate, 3 kg of photoinitiator, 4 kg of dispersant, and 3 kg of toughening agent.

[0021] Further, the photoinitiator is methyl benzoylformate.

[0022] Further, the dispersant is magnesium stearate.

[0023] Further, the toughening agent is polyvinyl butyral.

[0024] A preparation method of fireproof fiber, comprising the following steps:

[0025] The PET, color masterbatch and modified flame retardant are mixed separately after ultra-vacuum drying, melte...

Embodiment 2

[0030] A fireproof fiber, comprising the following raw materials by mass fraction: PET85kg, color masterbatch 30kg, modified flame retardant 30kg, the modified flame retardant includes ammonium polyphosphate and triphenyl phosphate.

[0031] Further, the modified flame retardant also includes a photoinitiator, a dispersant, and a toughening agent.

[0032] Further, based on the PET content, the content of each component of the modified flame retardant is as follows: 8 kg of ammonium polyphosphate, 10 kg of triphenyl phosphate, 4 kg of photoinitiator, 5 kg of dispersant, and 4 kg of toughening agent.

[0033] Further, the photoinitiator is methyl benzoylformate.

[0034] Further, the dispersant is magnesium stearate.

[0035] Further, the toughening agent is polyvinyl butyral.

[0036] A preparation method of fireproof fiber, comprising the following steps:

[0037] The PET, color masterbatch and modified flame retardant are mixed separately after ultra-vacuum drying, melted...

Embodiment 3

[0042] A fireproof fiber, comprising the following raw materials in terms of mass fractions: 100kg of PET, 35kg of color masterbatch, 38kg of a modified flame retardant, and the modified flame retardant includes ammonium polyphosphate and triphenyl phosphate.

[0043] Further, the modified flame retardant also includes a photoinitiator, a dispersant, and a toughening agent.

[0044] Further, based on the PET content, the content of each component of the modified flame retardant is as follows: 10 kg of polyphosphoric acid, 12 kg of triphenyl phosphate, 5 kg of photoinitiator, 6 kg of dispersant, and 5 kg of toughening agent.

[0045] Further, the photoinitiator is methyl benzoylformate.

[0046] Further, the dispersant is magnesium stearate.

[0047] Further, the toughening agent is polyvinyl butyral.

[0048] A preparation method of fireproof fiber, comprising the following steps:

[0049] The PET, color masterbatch and modified flame retardant are mixed separately after ul...

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PUM

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Abstract

The invention discloses a fireproof fiber and a preparation method thereof. The fireproof fiber comprises, by mass parts, 75-100 parts of PET, 25-35 parts of color masterbatch and 23-38 parts of modified flame retardant. The modified flame retardant comprises ammonium polyphosphate and triphenyl phosphate. The preparation method comprises the steps of conducting ultra-vacuum drying on the PET, thecolor masterbatch and the modified flame retardant, then mixing, extruding after fusion, cooling and shaping to obtain the fireproof fiber. A main component of the flame retardant is a phosphorus-based halogen-free flame retardant, has high environmental protection performance, can have transesterification reaction with polyester, and promotes bonding force and graft reaction between polyester molecular chains. At the same time, the flame retardant is modified to improve dispersibility and compatibility in the fiber, and the fireproof effect is better.

Description

technical field [0001] The invention relates to the technical field of fiber spinning, in particular to a fireproof fiber and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET), mainly used in the production of polyester fibers, has the advantages of high modulus, high strength and elasticity, good shape retention and heat resistance, and is currently the largest output of synthetic fibers Widest variety of fibers. In recent years, with the improvement of my country's fire safety awareness and the promotion and implementation of related legal systems, the fire performance of polyester fibers has become a major consideration in the production process of polyester fibers. Traditional polyester fibers mainly use PET and flame retardants to achieve the purpose of fire prevention. However, because the physical and chemical properties of flame retardants and PET are too different, the compatibility of the two systems is not high, and the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01F6/92D01F1/07
CPCD01F1/07D01F6/92
Inventor 徐介良杨明军姚黎鑫
Owner 安徽碧深高纤有限公司