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Method for preparing biomass straw carbon polyamide yarns

A technology of biomass straw charcoal and biomass straw, which is applied in the field of spinning, can solve the problems of waste of resources, pollute the environment, etc., and achieve the effects of good quality, easy preparation and operation, and avoiding pollution problems.

Inactive Publication Date: 2015-07-29
CHANGLE LIHENG POLYAMIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If most straw biomass is directly burned or discarded, it will not only pollute the environment, but also cause a waste of resources

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Cut the biomass straw into a size of about 1cm×1cm and place it in a vacuum cracking furnace. Pour nitrogen into the furnace to make the cavity of the vacuum cracking furnace under a nitrogen atmosphere. Raise the furnace temperature to 400°C and keep it for 50 minutes. Cooled to room temperature, the obtained solid component is biomass straw charcoal; the biomass straw charcoal is ground with a ball mill to a particle size of less than 3μm to obtain biomass straw charcoal particles for use; the mass ratio is accurately weighed at 5:95 The biomass straw charcoal particles and nylon 6 slices, and fully stirred evenly, are sent into the screw extruder to melt to form a melt. The screw extruder is divided into five zones, and the temperature of each zone is set to 245℃, 248 ℃, 252℃, 256℃, 256℃; then the melt is extruded into the spinneret to obtain filaments, then the filaments are cooled by side blowing and then pass through the spinning tunnel. Then the filaments are oiled...

Embodiment 2

[0018] Cut the biomass straw into a size of about 1cm×1cm and place it in a vacuum cracking furnace. Pour nitrogen into the furnace to make the cavity of the vacuum cracking furnace under a nitrogen atmosphere. Raise the furnace temperature to 400℃ and keep it for 30 minutes. Cooled to room temperature, the obtained solid component is biomass straw charcoal; the biomass straw charcoal is ground with a ball mill to a particle size of less than 3μm to obtain biomass straw charcoal particles for use; the mass ratio is accurately weighed to be 8:92 The biomass straw charcoal particles and nylon 6 slices, and fully stirred evenly, are sent into the screw extruder to melt to form a melt. The screw extruder is divided into five zones, and the temperature of each zone is set to 245℃, 248 ℃, 252℃, 256℃, 256℃; then the melt is extruded into the spinneret to obtain filaments, then the filaments are cooled by side blowing and then pass through the spinning tunnel. Then the filaments are oil...

Embodiment 3

[0021] Cut the biomass straw into a size of about 1cm×1cm and place it in a vacuum cracking furnace. Pour nitrogen into the furnace to put the cavity of the vacuum cracking furnace under a nitrogen atmosphere. Raise the furnace temperature to 400°C and keep it for 60 minutes. Cooled to room temperature, the solid component obtained is biomass straw charcoal; the biomass straw charcoal is ground with a ball mill to a particle size of less than 3μm to obtain biomass straw charcoal particles for use; the mass ratio is accurately weighed 6:94 The biomass straw charcoal particles and nylon 6 slices, and fully stirred evenly, are sent into the screw extruder to melt to form a melt. The screw extruder is divided into five zones, and the temperature of each zone is set to 245℃, 248 ℃, 252℃, 256℃, 256℃; then the melt is extruded into the spinneret to obtain filaments, then the filaments are cooled by side blowing and then pass through the spinning tunnel. Then the filaments are oiled, an...

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Abstract

The invention provides a method for preparing biomass straw carbon polyamide yarns. The method comprises the following steps: performing pretreatment on biomass straw to obtain biomass straw carbon particles for later use; precisely weighing the biomass straw carbon particles and polyamide-6 chips; fully stirring to be uniform; feeding the obtained mixture into a screw extruder to be fused to obtain a melt; extruding the melt into a spinneret plate to obtain filaments; cooling the filaments via cross air blasting; enabling the cooled filaments to pass through a spinning channel; oiling the filaments; sequentially pre-interlacing, bundling, guiding, cold-rolling, hot-rolling, interlacing and winding the oiled filaments to obtain the biomass straw carbon polyamide yarns, wherein guiding is realized through a godet wheel. The method provided by the invention widens the ways for preparing the biomass straw carbon polyamide yarns while achieving straw recycling and avoiding pollution caused by direct discarding of straw, and the prepared biomass straw carbon polyamide yarns are favorable in quality.

Description

【Technical Field】 [0001] The invention relates to a preparation method in the spinning field, in particular to a preparation method of biomass straw charcoal nylon yarn. 【Background technique】 [0002] Straw is the general term for the stems and leaves of mature crops; it usually refers to the remaining part of wheat, rice, corn, tubers, rape, cotton, sugar cane and other crops after harvesting their seeds. More than half of the products of crop photosynthesis exist in straws, which are rich in nitrogen, phosphorus, potassium, calcium, magnesium, and organic matter. It is a multi-purpose renewable biomass resource. [0003] If most of the straw biomass is directly burned or discarded, it will not only pollute the environment, but also cause a waste of resources. The biochar prepared from biomass straw is used as an additive to prepare nylon filaments, which not only realizes the high-value utilization of waste biomass straw, but also makes the prepared nylon filaments have special...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/90D01F1/10
Inventor 赵杰
Owner CHANGLE LIHENG POLYAMIDE TECH