High-flame-retardant superfine sea-island filament and preparation process thereof

A technology of sea-island silk and high flame retardancy, which is applied in the field of high-flame-retardant ultra-fine sea-island silk and its preparation technology, can solve problems such as economic loss, threats to people's life safety, and fire easily caused by textiles.

Active Publication Date: 2022-04-12
杭州惠丰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Textiles are extremely flammable and easily lead to fires, which will cause huge economic losses and pose a threat to people's lives.

Method used

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  • High-flame-retardant superfine sea-island filament and preparation process thereof
  • High-flame-retardant superfine sea-island filament and preparation process thereof
  • High-flame-retardant superfine sea-island filament and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A method for preparing highly flame-retardant ultrafine island-in-the-sea silk, comprising the following preparation steps:

[0056] S1: PET70kg, melamine resin 10kg, carbonyl betaine 1kg, vinylbisstearamide 1kg, nano-zinc oxide 1kg and nano-cerium oxide 3kg are mixed together, melted and dried, and extruded to obtain a PET solution;

[0057] S2: COPET30kg is dried and melted and extruded to obtain a COPET solution;

[0058] S3: Enter the PET melt and the COPET melt obtained by mixing into the spinneret assembly, and cool to obtain the inner layer of island-in-the-sea silk;

[0059] S4: polyacrylate 3kg, zirconium dioxide fiber 10kg, nano-titanium dioxide 3kg, aluminum hydroxide 3kg and red phosphorus 2kg are mixed together to make flame-retardant fiber;

[0060] S5: Immerse the inner layer of the sea-island silk in S3 into the bonding solution, take out the sea-island silk immersed in the insoluble water bonding solution and put it into the flame-retardant fiber in S4...

Embodiment 2-9 and comparative example 1-2

[0062] Embodiment 2-9, comparative example 1-2 are all different from the raw material proportioning of embodiment 1, and concrete raw material proportioning is shown in Table 1.

[0063] Table 1 embodiment 2-9 and the raw material proportioning of comparative example 1-2

[0064]

[0065]

[0066]

[0067] performance test

[0068] Detection method

[0069] Combustion performance test: According to the standard GB / T5455-1997 test, the fabric made of sea-island silk (after the COPET in the fabric is dissolved and the fabric is dried) is tested for combustion performance, and the limiting oxygen index, continuous burning time and smoldering time of the fabric are tested And dripping ignition absorbent cotton experiment.

[0070] Table 2 Embodiment 2-9 and the comparison of the fabric combustion performance of comparative example 1-2

[0071]

[0072] The afterflame time and smoldering time of the island-in-the-sea silk fabrics in Examples 2-9 and Comparative Exam...

Embodiment 10-19

[0076] The difference between Examples 10-19 and Example 1 is that the ratio of raw materials is different, and the specific ratio of raw materials is shown in Table 3.

[0077] The raw material ratio of table 3 embodiment 10-20

[0078]

[0079]

[0080] The concrete raw material ratio of comparative example 3-11 is as follows:

[0081] The raw material ratio of table 4 comparative example 3-11

[0082]

[0083] Embodiment 10-19, the comparison of fabric combustion performance in comparative example 3-11 is as shown in table 5 and table 6:

[0084] The fabric combustion performance contrast in table 5 embodiment 10-19

[0085]

[0086]

[0087] The comparison of fabric combustion performance in table 6 comparative examples 3-11

[0088]

[0089] The afterflame time and smoldering time of the island-in-the-sea silk fabrics in Examples 10-19 and Comparative Examples 3-11 were both less than 5s, and the drippings all caused the absorbent cotton to burn or sm...

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Abstract

The invention relates to the field of sea-island filaments, and particularly discloses a high-flame-retardant superfine sea-island filament and a preparation method thereof. The high-flame-retardant superfine sea-island filament comprises a sea-island filament inner layer and a sea-island filament outer layer wrapping the sea-island filament inner layer, and the sea-island filament outer layer is made of flame-retardant fibers; the sea-island filament inner layer comprises the following raw materials in parts by weight: a PET solution and a COPET solution; the PET solution is prepared from the following raw materials in parts by weight: 70-80 parts of PET, 10-20 parts of melamine resin, 1-3 parts of an antistatic agent, 1-3 parts of a dispersing agent and 1-3 parts of an antibacterial agent; the COPET solution is prepared from 30 to 40 parts of COPET; the flame-retardant fiber is prepared from the following raw materials in parts by weight: 3 to 5 parts of polyacrylate, 10 to 15 parts of zirconium dioxide fiber, 3 to 5 parts of nano titanium dioxide, 3 to 8 parts of aluminum hydroxide and 2 to 3 parts of red phosphorus; the prepared sea-island filament has the advantage of high flame retardance.

Description

technical field [0001] This application relates to the field of sea-island silk, more specifically, it relates to a highly flame-retardant ultrafine sea-island silk and its preparation process Background technique [0002] Sea-island fiber is to disperse one polymer in another polymer. The dispersed phase in the fiber cross-section is in the state of "island", while the matrix is ​​equivalent to "sea". From the cross-section of the fiber, it is a component with The fine and scattered state is surrounded by another component, as if there are many islands in the sea. [0003] The sea-island fiber has the fineness of conventional fibers, but by dissolving the "sea" component with a solvent, the superfine sea-island silk can be obtained. The sea-island silk has the advantages of high coverage and soft luster of the fabric. The sea-island fiber is suede Many properties of the fabric are not inferior to natural suede, and many properties are even better than natural suede. Its f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/07D01F1/09D01F1/10
CPCY02P70/62
Inventor 周小华陈满元蔡爱民
Owner 杭州惠丰化纤有限公司
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