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Method for preparing three-dimensional natural fiber oil-absorbing material

An oil-absorbing material and natural fiber technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of easy oil leakage and difficult recycling of loose fibers, and solve the difficulty of recycling, realize large-scale industrial application, and be easy to scale. The effect of large-scale industrial application

Inactive Publication Date: 2015-02-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of preparation of oil-absorbing materials with kapok, cattail velvet, cotton linters, bamboo pulp fibers and other natural fibers as raw materials in view of the inherent advantages of the current natural oil-absorbing materials themselves and the problems still existing in their application method, on the one hand, realize their ideal aggregation state in the fiber aggregate, and improve the comprehensive oil-absorbing performance of the fiber itself; Difficult and easy to oil leakage and other problems

Method used

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  • Method for preparing three-dimensional natural fiber oil-absorbing material
  • Method for preparing three-dimensional natural fiber oil-absorbing material
  • Method for preparing three-dimensional natural fiber oil-absorbing material

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Open and mix kapok fiber and polypropylene / polyethylene sheath-core composite fiber (ES) according to the weight percentage ratio of 80:20, then process the fiber raw material after opening and mixing into fiber web through air-laid equipment, and cut Fiber web with a diameter of 8 cm. Place the fiber web inside a hot air oven at 140°C, and form a three-dimensional structure by heating and bonding under a pressure of 292Pa. The temperature of heating and bonding is 140°C, and the time is 30 minutes. Take it out and cool it to obtain kapok / ES oil-absorbing flakes.

Embodiment 2

[0034] Cattail velvet fiber and polypropylene / polyethylene sheath-core composite fiber (ES) are opened and mixed according to the weight percentage ratio of 80:20, and then the fiber raw material after opening and mixed is processed into a fiber web by air-laid equipment, and Fiber webs with a diameter of 8 cm were cut. Place the fiber web in a hot air oven at 140°C, and form a three-dimensional structure by heating and bonding under a pressure of 292Pa. The temperature of the heating and bonding is 140°C, and the time is 30 minutes. Take it out and cool it, and make cattail fleece / ES oil-absorbing flakes .

Embodiment 3

[0036] Opening and mixing ordinary cotton fibers and polypropylene / polyethylene sheath-core composite fibers (ES) according to a weight percentage ratio of 80:20, and then processing the opened and mixed fiber raw materials into fiber webs through air-laid equipment, and Fiber webs with a diameter of 8 cm were cut. Place the fiber web inside a hot air oven at 140°C, and form a three-dimensional structure by heating and bonding under a pressure of 292Pa. The temperature of heating and bonding is 140°C, and the time is 30 minutes. Take it out and cool it, and make ordinary cotton / ES oil-absorbing flakes .

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Abstract

The invention provides a method for preparing a three-dimensional natural fiber oil-absorbing material. The method is characterized by comprising the following steps that 1, a cellulose fiber and a low-melting point fiber are loosened and blended, wherein the percentage by mass of the low-melting point fiber is 10 to 20 percent; 2, the loosened and blended fiber raw material is processed into a fiber net by airflow net-forming equipment; 3, the fiber net is heated and stuck into a three-dimensional structure, wherein the heating and sticking temperature is 130 to 160 DEG C, and the heating and sticking time is 20 to 100 minutes. According to the method for preparing the oil-absorbing material which takes a natural fiber, such as ceiba, bulrush floss, linter and bamboo pulp fiber as a raw material, a relatively ideal clustering state and a stable three-dimensional fiber clustering body structure of the natural fibers in a fiber clustering body are realized, the comprehensive oil-absorbing property of the fiber is improved, and the problems that scattered fibers are difficult in reclamation and oil leakage is caused again in the practical application of the fibers are well solved.

Description

technical field [0001] The invention relates to the field of oil-absorbing materials, in particular to a method for preparing three-dimensional natural fiber oil-absorbing materials through air-laid and hot-air bonding techniques. Background technique [0002] With the development of the use and transportation of crude oil and various oil products, the oil pollution of water bodies caused by oily wastewater, waste liquid, offshore oil spills, etc. has become one of the main environmental problems we are facing today. Among various oily wastewater treatment methods, the use of oil-absorbing materials for adsorption recovery is the simplest and most widely used method. [0003] At present, the oil-absorbing materials used at home and abroad are mainly synthetic polymer materials, including polypropylene fibers, polyurethane foams, acrylic and olefin oil-absorbing resins, etc. Such materials are almost exclusively synthesized from petroleum by-products. Because petroleum is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/732D04H1/54
CPCD04H1/4382D04H1/541D04H1/732
Inventor 徐广标董婷王府梅曹胜彬
Owner DONGHUA UNIV
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