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Preparation method of high-strength heat-resistant type industrial yarns

An industrial yarn, high-strength technology, applied in the industrial field, can solve the problems of wear resistance, poor durability, and poor heat resistance of industrial yarn

Inactive Publication Date: 2020-05-05
黄必富
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a preparation method of high-strength heat-resistant industrial yarn for the defects of poor heat resistance, wear resistance and poor durability of the current industrial yarn

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

[0029] Preparation of modified fiber product:

[0030] Put sisal hemp and cotton straw into a pulverizer at a mass ratio of 10:1, pulverize and mix them, put them into an oven after pulverization, and dry them for 60 minutes at a temperature of 110°C to obtain a mixed material. Mix the mixed material with a mass fraction of 12% hydrogen The sodium oxide solution was put into a beaker at a mass ratio of 1:10, and stirred with a stirring device at a speed of 300r / min for 15min to obtain a mixed slurry;

[0031] Place the above beaker in a water bath with a water bath temperature of 50°C, stir with a stirrer at a speed of 500r / min for 30min at a constant temperature to obtain a reaction mixture, add toluene with 10% mass of the reaction mixture to the beaker, and continue stirring Stir at a speed of 500r / min for 30min to prepare a prefabricated solution;

[0032] Put the prefabricated solution and calcium chloride into a three-necked flask at a mass ratio of 30:1, place the three-...

Embodiment 2

[0038] Preparation of modified fiber product:

[0039] Put sisal hemp and cotton straw into a pulverizer at a mass ratio of 10:1 to pulverize and mix them, put them into an oven after pulverization, and dry them for 70 minutes at a temperature of 115°C to obtain a mixed material. Mix the mixed material with a mass fraction of 14% hydrogen The sodium oxide solution was put into a beaker at a mass ratio of 1:10, and stirred with a stirring device at a speed of 350r / min for 17min to prepare a mixed slurry;

[0040] Place the above beaker in a water bath with a water bath temperature of 60°C, stir with a stirrer at a speed of 550r / min for 35 minutes at a constant temperature to obtain a reaction mixture, add toluene with a mass of 12% of the reaction mixture to the beaker, and continue stirring Stirring at a speed of 55r / min for 35min to prepare a prefabricated solution;

[0041] Put the prefabricated solution and calcium chloride into a three-necked flask at a mass ratio of 30:1...

Embodiment 3

[0047] Preparation of modified fiber product:

[0048] Put sisal hemp and cotton straw into a pulverizer at a mass ratio of 10:1 to pulverize and mix them, put them into an oven after pulverization, and dry them for 80 minutes at a temperature of 120°C to obtain a mixed material. Mix the mixed material with 15% hydrogen The sodium oxide solution was put into a beaker at a mass ratio of 1:10, and stirred with a stirring device at a speed of 400r / min for 20min to prepare a mixed slurry;

[0049] Place the above beaker in a water bath with a water bath temperature of 70°C, stir with a stirrer at a speed of 600r / min for 40 minutes at a constant temperature to obtain a reaction mixture, add toluene with a mass of 15% of the reaction mixture to the beaker, and continue stirring Stir at a speed of 600r / min for 40min to prepare a prefabricated solution;

[0050] Put the prefabricated solution and calcium chloride into a three-necked flask at a mass ratio of 30:1, place the three-neck...

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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Abstract

The invention discloses a preparation method of high-strength heat-resistant type industrial yarns, and belongs to the technical field of industry. According to the preparation method, sisal hemp andcotton straws are boiled by high temperature alkaline solution to extract plant fiber ingredients contained in the sisal hemp and the cotton straws, and ingredients of small-molecule impurities, hemicelluloses and the like in the fibers are dissolved after alkaline solution heating, so that roughness degrees of surfaces of the extracted fiber ingredients are increased, a specific surface area of the fibers is increased and a contact degree between the fibers and other molecules around is improved, thereby improving bonding compactness among the ingredients in the industrial yarns by utilizingthe fiber ingredients, improving structural strength of the industrial yarns and reinforcing wear resistance, toughness and the like of the industrial yarns; a hydroxide radical on the surfaces of thefibers is used as an initiator and the copolymerization reaction is performed on the surfaces of the fibers by lactide, so that polylactic acid molecule branch chains are grafted onto the fibers, thereby reinforcing compatibility to a polyester ingredient and improving wear resistance and durability of the industrial yarns; and meanwhile, a tin-oxygen bond is introduced into the fibers so as to reinforce heat stability and mechanical performance of the fibers.

Description

technical field [0001] The invention discloses a preparation method of high-strength heat-resistant industrial yarn, which belongs to the technical field of industry. Background technique [0002] Polyester industrial yarn is widely used in industry, and can be used as the skeleton material of rubber and plastic products such as tire cords, conveyor belts, and V-belts, as well as ropes, safety belts, coated fabrics, filter cloths, etc. Polyester industrial yarn is suitable for many fields, and the fiber properties required for different use occasions are different. For example, the cord requires high modulus and high dimensional stability; and the polyester industrial yarn used as coated fabrics, hoses and conveyor belt wefts, Low dry heat shrinkage is required. A lot of research has been done on this, and some progress has been made. These studies mainly include: the patent No. CN1904153 discloses a method for preparing ultra-low shrinkage polyester industrial yarns by us...

Claims

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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Application Information

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IPC IPC(8): D01F6/92D01F1/10
CPCD01F1/10D01F6/92
Inventor 黄必富
Owner 黄必富
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