Composite elastic filament material and its processing method

A process method and elastic yarn technology, applied in chemical instruments and methods, rayon manufacturing, single-component polypropylene rayon, etc., can solve the problems of slow film formation, small specific surface area, and low activity, and achieve film formation Rapid, specific surface area increase, enhanced activity effect

Inactive Publication Date: 2004-07-21
FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silk material used in this tow-shaped three-dimensional elastic biofiller has a smooth surface, a small specific surface area, and slow film formation; the simple material polypropylene is used as a raw material, and the activity is low. These shortcomings restrict its application in the field of water treatment to varying degrees. further development of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A process for producing composite elastic silk materials containing active substances, the polypropylene masterbatch contains 20-35% tourmaline ultrafine particles, the diameter of the tourmaline ultrafine particles is 0.7 μm, the polypropylene particles are 100 kg, and 10 kg of polypropylene After the masterbatch is uniformly mixed, the extruder is sprayed at a temperature of 250°C by the conventional process method, coiled and stretched; then the monofilament is napped with a sawtooth knife, embossed on both sides by a roller machine, and then drawn, cut, Drying; made into elastic monofilament, the diameter of the monofilament is 0.4mm. The overall appearance of the monofilament produced by this process is linear, and the periphery of the radial section of the filament is convex-concave polygonal, and the surface of the filament is in the shape of hairy branches.

Embodiment 2

[0012] Process method for producing composite elastic silk materials containing active substances, polypropylene masterbatch contains 30% tourmaline ultrafine particles, tourmaline ultrafine particles have a diameter of 0.3 μm, 80 kg of polypropylene particles, and 12 kg of polypropylene masterbatch are uniform After mixing, the extruder is sprayed at a temperature of 250°C through the conventional process, coiled, and stretched; Stretch and crimp the silk material mechanically, bake at a temperature of 155-160°C for 2-3 hours to finalize the shape, the silk material is in the shape of a spring, and cut off. Monofilament diameter 0.5mm. The overall appearance of the monofilament produced by this process is helically crimped, the periphery of the radial section of the filament is convex-concave polygonal, and the surface of the filament is in the shape of hairy branches.

[0013] The elastic silk material obtained by the above process method is uniformly arranged in three dime...

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Abstract

A composite elastic filament material used as the biofiller in biomembrane method for treating sewage is prepared from the mother polypropylene particles containing the superfine tourmalinite particles and polypropylene particles through preparing filament, napping, and embossing.

Description

technical field [0001] The invention relates to a biological filler used for biofilm sewage treatment in environmental protection, in particular to a composite elastic silk material constituting the biological filler and a production process thereof. Background technique [0002] Water purification by biofilm method has become one of the important methods of sewage treatment, and the performance of silk material used as biofilm carrier biofill directly affects the application effect of this method. Among many biological fillers with rigid, soft and semi-soft structures, tow-shaped three-dimensional elastic biological fillers are more prominent due to their good comprehensive properties of rigidity and flexibility, simple structure, reasonable structure, and easy operation and maintenance. Superior and practical. It has good hydraulic and organic load impact resistance, long material life, no sticking and agglomeration, good anti-sludging ability and air-water turbulence per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10D01F1/10D01F6/06
CPCY02W10/10
Inventor 张明华杨菁丁永良
Owner FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
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