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Method for improving thermal insulation performance of kapok fiber

A technology of kapok fiber and thermal insulation performance, which is applied in fiber processing, plant fiber, textile material processing and other directions to achieve the effects of expanding the scope of application, reducing costs, and high specific surface area

Pending Publication Date: 2020-03-27
界首市苏澳纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main reason is that there is a lack of a modification treatment technology to bring out the application value of kapok fiber.

Method used

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  • Method for improving thermal insulation performance of kapok fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for improving the thermal insulation performance of kapok fiber, comprising preparation of activator, pretreatment of kapok fiber, dipping process, washing and air-drying, and spinning;

[0022] Specifically, the following process steps are included:

[0023] The preparation method of the activator: Weigh 75 grams of silicon dioxide and 110 grams of barium sulfate powder, place them in 300 milliliters of hydrochloric acid solution, stir evenly, leave to stand for acidification for 3 hours, filter, and place the product in an oven at 70°C for drying After 10 hours, the dry powder obtained was placed in a crucible, placed in a tube furnace preheated at 220°C, and nitrogen gas was introduced for protection. The nitrogen flow rate was 0.8 liters / min, and the temperature was raised to 600°C at a rate of 6.5°C / min. After 1 hour, cool naturally with the furnace to 25°C, take out the product and transfer it to hexamethyldisilazanol solution, the ratio of material to li...

Embodiment 2

[0028] A method for improving the thermal insulation performance of kapok fiber, comprising preparation of activator, pretreatment of kapok fiber, dipping process, washing and air-drying, and spinning;

[0029] Specifically, the following process steps are included:

[0030]The preparation method of the activator: Weigh 78 grams of silicon dioxide and 115 grams of barium sulfate powder, place them in 320 milliliters of hydrochloric acid solution, stir evenly, leave to stand for acidification for 3.5 hours, filter, and place the product in an oven at 80°C for drying After 12 hours, the dry powder obtained was placed in a crucible, placed in a tube furnace preheated at 225°C, and nitrogen was introduced for protection. The nitrogen flow rate was 0.9 liters / min, and the temperature was raised to 620°C at a rate of 6.8°C / min. After 1.5 hours, cool naturally with the furnace to 28°C, take out the product and transfer it to hexamethyldisilazanol solution, the ratio of material to li...

Embodiment 3

[0034] A method for improving the thermal insulation performance of kapok fiber, comprising preparation of activator, pretreatment of kapok fiber, dipping process, washing and air-drying, and spinning;

[0035] Specifically, the following process steps are included:

[0036] The preparation method of the activator: Weigh 80 grams of silicon dioxide and 120 grams of barium sulfate powder, place them in 340 milliliters of hydrochloric acid solution, stir evenly, leave to acidify for 4 hours, filter, and place the product in an oven at 90°C for drying After 15 hours, the dry powder obtained was placed in a crucible, placed in a tube furnace preheated at 230°C, and nitrogen gas was introduced for protection. The nitrogen flow rate was 1.0 liter / min, and the temperature was raised to 650°C at a rate of 7.0°C / min. After 2 hours, cool naturally with the furnace to 30°C, take out the product and transfer it to the hexamethyldisilazanol solution, the ratio of material to liquid is 1:16...

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Abstract

The invention relates to the technical field of development of a textile industry, and discloses a method for improving thermal insulation performance of kapok fiber. Via research on the structure andthermal insulation principle of kapok fiber, the problem that in existing technologies, kapok fiber is processed by using a blending technology, so that product performance is seriously degraded is solved. The technology disclosed by the invention comprises the steps: preparation of an activator, pretreatment of kapok fiber, an impregnation technology and spinning after washing with water and airdrying; the prepared activator has the advantages of being high in specific surface area, extensive in micropore structure, capable of filling the interior of the kapok fiber to form a whole, and thus the processed kapok fiber is extremely high in thermal insulation, air permeability and moisture permeability, meanwhile, significantly improved in mechanical property, high in toughness, prone to tease and spin, and thus becomes an ideal textile material; by using the method, the kapok fiber can be significantly improved in strength and high in rebound resilience, so that the kapok fiber can beindependently span, the problems of fiber breakage and fibrillation caused by the effect of friction and other external forces are reduced, and the heat retention property of kapok fiber fabric can be improved, with a heat conductivity coefficient reducing to 0.018-0.020 W / mK.

Description

technical field [0001] The invention belongs to the technical field of textile industry development, and in particular relates to a method for improving the thermal insulation performance of kapok fibers. Background technique [0002] Kapok fiber is short, soft, and has no twist. It is a light and hollow fiber material, which is far superior to artificial fibers and any other natural materials. Strong pressure resistance, high heat retention, light and no burden. However, kapok fiber has poor spinnability and is generally difficult to spin purely. By blending with cotton, viscose or other cellulose fibers, it can produce garment fabrics with good luster and hand feeling. . [0003] In the past, the reason why kapok fiber was not widely used in the field of textile and clothing was that kapok fiber was too thin, had low bending stiffness, poor compression elasticity, and the filling material was easily flattened and felted. With the passage of time, the product's softness,...

Claims

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Application Information

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IPC IPC(8): D06M11/79D06M13/256D06M13/148D06M11/38D06M13/188D06B21/00D06M101/06
CPCD06M11/79D06M13/256D06M13/148D06M11/38D06M13/188D06B21/00D06M2101/06
Inventor 栾俊
Owner 界首市苏澳纺织科技有限公司
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