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Preparing method for wear-resisting soft polyester bulked continuous filaments

A technology of bulked filament and polyester, applied in the direction of conjugated synthetic polymer rayon, rayon manufacturing, fiber chemical characteristics, etc., can solve problems such as non-implementation, achieve improved mechanical properties, improve durability, and improve The effect of abrasion resistance

Active Publication Date: 2016-02-10
CHANGZHOU LINGDA SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Ultrafine inorganic powder is used as a wear-resistant additive in bulked filaments for carpets, which has not yet been implemented.

Method used

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  • Preparing method for wear-resisting soft polyester bulked continuous filaments

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of wear-resistant and soft PBT / PET bulked filament

[0037] a. Preparation of talcum powder masterbatch (weight ratio): 50% talcum powder, 44% polybutylene terephthalate, 3% maleic anhydride grafted POE, 1% zinc stearate, 10100.1% antioxidant, Antioxidant 1680.1%, triphenyl phosphite 2%, all added to a high-speed mixer, high-speed mixing for 10 minutes, twin-screw extruder melt blending extrusion, granulation;

[0038] Raw material requirements:

[0039] Talc powder: average particle size 1.4μm, whiteness ≥ 90%, silane coupling agent KH560 surface modification, water content ≤ 50ppm,

[0040] Polybutylene terephthalate: intrinsic viscosity 1.03~1.09dl / g, moisture ≤50ppm,

[0041] Maleic anhydride grafting POE: grafting rate 0.8-1.2%, melt index (190°C, 2.16kg): 1.0-2.5g / 10min.

[0042] b. Spinning (weight ratio): 61% of dry PBT chips, 23% of PET chips, 16% of dry superfine talcum powder masterbatch, and add the feed screw of BCF spinning unit simultaneous...

Embodiment 2

[0053] Preparation of wear-resistant and soft PTT / PBT bulked filament

[0054] a. Preparation of talcum powder masterbatch (weight ratio): talcum powder 40%, polybutylene terephthalate 52%, maleic anhydride grafted PP5%, zinc stearate 1%, antioxidant 10100.1%, Antioxidant 1680.1%, triphenyl phosphite 2%, all added to a high-speed mixer, high-speed mixing for 10 minutes, twin-screw extruder melt blending extrusion, granulation;

[0055] Raw material requirements:

[0056] Talc powder: average particle size 0.8μm, whiteness ≥ 90%, silane coupling agent KH560 surface modification, moisture content ≤ 50ppm,

[0057] Polybutylene terephthalate: intrinsic viscosity 1.03~1.09dl / g, moisture ≤50ppm,

[0058] Maleic anhydride grafted PP: graft rate: 0.8-1.2%, melt index 49-51g / 10min.

[0059] b. Spinning (weight ratio): 70% of dry PTT chips, 15% of PBT chips, 15% of dry superfine talcum powder masterbatch, and add the feeding screw of BCF spinning unit simultaneously, through screw m...

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Abstract

The invention relates to a preparing method for wear-resisting soft polyester bulked continuous filaments. The method includes the first step of preparing talcum powder master batch, wherein dried modified superfine talcum powder, a carrier, a compatibilizer, dispersant, antioxidant and ester exchange inhibitor are added into a high-speed mixer to be mixed and are blended in a molten mode and granulated through a double-screw extruder; the second step of spinning, wherein polyethylene glycol terephthalate or polypropylene glycol terephthalate and polybutylene glycol terephthalate slices are mixed, dried, and mixed with dried talcum powder master batch, and the mixture is added into a feed screw of a BCF spinning unit to prepare the polyester bulked continuous filaments through a one-step mode. Compared with pure polyester fibers, wear resistance of the two kinds of obtained bulked continuous filaments is improved by 30% or more, moreover, the PBT / PET bulked continuous filaments have fiber characteristics such as high rebound resilience similar to PBT-BCF and soft handfeel, and heat stability of the physical form is obviously improved; the obtained PTT / PBT bulked continuous filaments have the fiber characteristic similar to that of PTT-BCF, and raw material cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical fiber spinning processing, and in particular relates to a preparation method of mixed polyester bulky filaments containing ultrafine inorganic powder. Background technique [0002] Carpet has long been an essential product for high-level architectural decoration, such as widely used as ground decoration materials for residences, hotels, gymnasiums, exhibition halls, vehicles, ships, airplanes, etc. It is a traditional arts and crafts with a long history in the world. One of the categories. [0003] Chemical fiber carpets have the characteristics of light weight, wear resistance, bright colors, comfortable feet, high elasticity, simple laying, and low price. With the continuous innovation of chemical fiber spinning technology and spinning raw materials, the output of chemical fiber carpets in the world has accounted for more than 100% of carpets. If the service life of the carpet is significantly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10
Inventor 蒋韶贤张立军薛小平陆惠林蒋俊贤柴立锋李昳邓希平
Owner CHANGZHOU LINGDA SPECIAL FIBER
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