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Environmentally friendly modified bast fiber containing functional structure, and preparation method thereof

It is a technology with green environmental protection and functional structure, which is applied in fiber treatment, plant fiber, textile and paper making, etc. It can solve the problem of low mechanical properties of natural biological hemp fiber/polymer composite material, poor polarity and flame retardancy of hemp fiber, surface Fine structural defects and other problems, to achieve the effects of excellent modification effect, improved flame retardancy, and easy control of process parameters

Inactive Publication Date: 2011-11-23
陈明思
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the deficiencies that existing natural biological hemp fiber exists, such as there are surface fine structure defects and impurity phases in hemp fiber, hemp fiber has poor polarity and flame retardancy, and poor compatibility with the polymer interface, which eventually leads to Natural bio-hemp fiber / polymer composites have problems such as low mechanical properties, poor combustion resistance and unstable performance

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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  • Environmentally friendly modified bast fiber containing functional structure, and preparation method thereof
  • Environmentally friendly modified bast fiber containing functional structure, and preparation method thereof
  • Environmentally friendly modified bast fiber containing functional structure, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Weigh 4.3g of lanthanum chloride (containing 6 crystalline waters), and dissolve the weighed lanthanum chloride into 1500ml of water under medium-speed magnetic stirring until it is completely dissolved;

[0048] 2. Weigh 100g of ramie fiber rinsed with water and dried, put it into the prepared rare earth lanthanum chloride solution, soak it with ultrasonic vibration at 60°C for 1 hour, remove it, and dry it;

[0049] 3. While treating the hemp fiber with the rare earth lanthanum chloride solution, mix amino silicone oil, emulsifier (OP-10), and dispersant (cetyl alcohol) in a ratio of 6:6:1, and ultrasonically vibrate at 60°C Stir vigorously for 1 hour to prepare 500ml silicone oil emulsion.

[0050] 4. Put the ramie fiber treated with rare earth lanthanum chloride into the prepared amino silicone oil emulsion, and add distilled water to 1500ml. Ultrasonic vibration reaction was performed at 80°C for 3 hours (3hr). After the reaction was completed, the treated rami...

Embodiment 2

[0052] 1. Weigh 2.15g of lanthanum chloride, and dissolve the weighed lanthanum chloride into 1500ml of water under medium-speed magnetic stirring until it is completely dissolved;

[0053] 2. Weigh 100g of ramie fiber rinsed with water and dried, put it into the prepared rare earth solution, soak it with ultrasonic vibration at 60°C for 1 hour, remove it and dry it;

[0054] 3. While treating the hemp fiber with the rare earth lanthanum chloride solution, mix the amino silicone oil emulsifier (OP-10) and the dispersant (cetyl alcohol) in a ratio of 5:5:1, and strengthen the ultrasonic vibration at 60°C Vigorously stir for 1 hour, and configure 500ml silicone oil emulsion.

[0055] 4. Put the ramie fiber treated with rare earth lanthanum chloride into the prepared amino silicone oil emulsion, and add distilled water to 1500ml. Ultrasonic vibration reaction was performed at 80°C for 2 hours (2hr). After the reaction was completed, the treated ramie was air-dried or dried in a ...

Embodiment 3

[0057] 1. Weigh 8.6g of lanthanum chloride (containing 6 crystal waters), dissolve the weighed lanthanum chloride into 1500ml of water under medium-speed magnetic stirring and continue stirring until completely dissolved;

[0058] 2. Weigh 100g of ramie fiber rinsed with water and dried, put it into the prepared rare earth lanthanum chloride solution, soak it with ultrasonic vibration at 60°C for 1 hour, remove it, and dry it;

[0059] 3. While treating the hemp fiber with the rare earth lanthanum chloride solution, mix the amino silicone oil emulsifier (OP-10) and the dispersant (cetyl alcohol) in a ratio of 5:5:1, and strengthen the ultrasonic vibration at 60°C Vigorously stir for 1 hour, and configure 500ml silicone oil emulsion.

[0060] 4. Put the ramie fiber treated with rare earth lanthanum chloride into the prepared amino silicone oil emulsion, and add distilled water to 1500ml. Ultrasonic vibration reaction was performed at 80°C for 3 hours (3hr). After the reaction ...

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 relates to an environmentally friendly modified bast fiber containing a rare earth-polysiloxane functional structure, and a preparation method thereof. The modified bast fiber is a novel bast fiber material prepared from natural bast fiber through a combined effect of rare earth lanthanum ions and silicone oil molecules on the natural bast fiber. The surface of the modified bast fiber does not have impurity phases. The modified bast fiber contains rare earth lanthanum ion-polysiloxane molecule chains with a hydrophobic property and a fire resistant property, thus a surface polarity and a hydrophilic property of the modified bast fiber are changed and the modified bast fiber can be dissolved well in a hydrophobic polymer material. The modified bast fiber does not have only excellent properties but also environmentally friendly and recyclable superiorities, and thus is expected to be composited further with a polymer to form a novel bast fiber-polymer environmentally friendly material with excellent mechanical properties, environmentally friendly characteristics, non-toxic characteristic and fire resistant characteristics. The modified bast fiber can be utilized widely for industries of automobiles, light rail, high-speed rail, office furniture, building and the like. The preparation method of the modified bast fiber containing a rare earth-polysiloxane functional structure has the advantages of simple operation, good suitability for large-scale production, environmentally friendly characteristic and good controllability.

Description

technical field [0001] The invention belongs to the subject field of new materials, in particular to a modified natural hemp fiber and a preparation method thereof. technical background: [0002] With the increasing shortage of international energy, rising energy prices and increasing pressure on environmental protection, governments of various countries are paying more and more attention to the research and application development of environmentally friendly and recyclable materials. The natural bio-hemp fiber / polymer composite is a new material that meets the requirements of energy saving, environmental protection and recyclability. Natural bio-hemp fibers include low-cost biomass materials such as ramie, flax, sisal, and kenaf. Compared with the composite materials formed by E-glass fiber, man-made carbon fiber and thermoplastic resin, biomass natural hemp fiber not only has advantages in environmental friendliness and recyclability, but also has a wide range of sources,...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/00D06M15/643D06M11/17D06M11/65C08J5/06D06M101/06
Inventor 陈明思
Owner 陈明思
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