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PET/Attapulgite nano composite fiber

A technology of nano-composite fibers and attapulgite, which is applied in directions such as single-component polyester rayon filaments, can solve problems such as reduced mechanical properties, and achieve the effects of convenient operation, improved breaking strength and simple preparation process.

Inactive Publication Date: 2008-02-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this invention is to provide a kind of polyethylene terephthalate (PET) / attapulgite nanocomposite fiber, this PET fiber can solve the problem that the universal mechanical property of existing nano-modified PET fiber reduces

Method used

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  • PET/Attapulgite nano composite fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The dry slices of the PET / attapulgite composite material with an attapulgite content of 0.02% are spun and drawn by MST C-TYPE small spinning equipment and a parallel drafting machine to obtain PET / attapulgite nanocomposite fibers. The spinning temperature is controlled to be 290° C., and the draw ratio is 3 times. Test the obtained PET / attapulgite nanocomposite fiber, wherein, the time required for crystallization is t 1 / 2 It is expressed as the time required for the volume shrinkage of the polymer melt to reach half of the entire process during the cooling process. After the fiber sample is heated and melted by DSC (differential scanning calorimeter), it is then cooled at a rate of 10°C / min. rate cooling, recording the change in enthalpy during the process, via the equation Xt = ∫ T 0 T ( dHc / dT ) ...

Embodiment 2

[0024] The dry slices of the PET / attapulgite composite material with an attapulgite content of 0.2% are spun and drawn through conventional PET fiber spinning equipment and processes to obtain PET / attapulgite nanocomposite fibers. The obtained PET / attapulgite nanocomposite fiber was tested, and its breaking strength was 3.21cN / dtex, the breaking elongation was 29.60%, and the Young's modulus was 3.19×10 3 g / dtex,t 1 / 2 It is 1.17min.

Embodiment 3

[0026] The dry slices of the PET / attapulgite composite material with an attapulgite content of 0.5% are spun and drawn through conventional PET fiber spinning equipment and processes to obtain PET / attapulgite nanocomposite fibers. The obtained PET / attapulgite nanocomposite fiber was tested, and its breaking strength was 3.46cN / dtex, the breaking elongation was 28.50%, and the Young's modulus was 3.85×10 3 g / dtex,t 1 / 2 It is 1.09min.

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Abstract

The present invention relates to a polyethylene terephthalate / attapulgite nano-composite fiber, which comprises polyethylene terephthalate and uniformly distributed attapulgite, wherein the attapulgite is distributed in nanometer size in the fiber. The composite fiber of the present invention not only has the excellent property of polyethylene terephthalate (PET) fiber, but also can improve mechanical properties including fracture strength, etc. of PET nano-composite fiber and significantly decrease the time for crystallization of PET fiber.

Description

technical field [0001] The invention belongs to polyethylene terephthalate fiber, in particular to a nano-modified polyethylene terephthalate nanocomposite fiber. Background technique [0002] Polyethylene terephthalate (PET) fiber is currently the largest synthetic fiber in the world. Its molecular chain includes rigid benzene rings and flexible aliphatic hydrocarbon groups, which makes it have excellent characteristics in various aspects. Moreover, it is cheap, currently accounts for about 70% of chemical fiber production, and is widely used in clothing, home textiles and industrial textiles. [0003] In recent years, the focus of PET product development is comfort fiber, functional fiber, composite fiber and composite processing of fiber, nanofiber and smart fiber, among which nano-PET composite fiber has attracted the attention of academic and industrial circles at home and abroad for its excellent performance. . [0004] At present, there are many kinds of PET fibers ...

Claims

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Application Information

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IPC IPC(8): D01F6/62D01F1/10
Inventor 陈大俊樊旭芬
Owner DONGHUA UNIV
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