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Melt-blow oil absorption material

An oil-absorbing material and melt-blown technology, applied in the direction of adsorption of water/sewage treatment, water/sludge/sewage treatment, non-woven fabrics, etc., can solve the problem of oil absorption, oil absorption ratio, oil retention, reusable performance, and high density , high processing costs and other issues, to achieve the effect of good hydrophobicity, mature technology and simple process

Inactive Publication Date: 2016-12-21
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On this basis, they compounded high oil-absorbing resin and polypropylene in an appropriate ratio and successfully prepared a composite oil-absorbing product by using a melt-blown process. However, the oil absorption, oil absorption ratio, oil retention and reusability of the product There is still a lot of room for improvement, and the polymerization modification process technology is relatively complicated, and the processing cost is relatively high
In addition, the density of the above-mentioned polyphenylene sulfide, copolymethacrylate and polyester is relatively high, and the density of the melt-blown products produced is easily larger than that of water, especially the latter two have better water absorption characteristics. , the product is easy to sink in water during the oil absorption process

Method used

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  • Melt-blow oil absorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Set the density to 0.90g / cm 3 , the melt index is 1000g / 10min, the mass percentage is 95% polypropylene and the density is 1.04g / cm 3 , polystyrene with a melt index of 20g / 10min and a mass percentage of 5% is placed in a high-speed mixer and mixed evenly at high speed, then added to a screw extruder to melt and extrude, and then enters the melt blown through the material path and metering pump Die head, the melt meets high-speed hot air at the outlet of the melt-blown die head, and is drawn and refined under the action of high-speed hot air, and then deposited on the net curtain to form polystyrene / polypropylene blended melt-blown oil-absorbing material . After testing, the crystallinity of the oil-absorbing material is 20%, the oil absorption rate reaches 8.6g / g, the absorption saturation can be reached within 6 minutes, and the oil retention rate is 85.5%.

Embodiment 2

[0015] Set the density to 0.90g / cm 3 , a polypropylene with a melt index of 1100g / 10min, a mass percentage of 90%, and a density of 1.05g / cm 3 , polystyrene with a melt index of 25g / 10min and a mass percentage of 10% is placed in a high-speed mixer and mixed evenly at high speed, then added to a screw extruder to melt and extrude, and then enters the melt blown through the material path and metering pump Die head, the melt meets high-speed hot air at the outlet of the melt-blown die head, and is drawn and refined under the action of high-speed hot air, and then deposited on the net curtain to form polystyrene / polypropylene blended melt-blown oil-absorbing material . After testing, the crystallinity of the oil-absorbing material is 18%, the oil absorption ratio reaches 9.4g / g, the absorption saturation can be reached within 6 minutes, and the oil retention rate is 87.8%.

Embodiment 3

[0017] Set the density to 0.91g / cm 3 , the melt index is 1100g / 10min, the mass percentage is 85% polypropylene and the density is 1.06g / cm 3 , polystyrene with a melt index of 25g / 10min and a mass percentage of 15% is placed in a high-speed mixer and mixed evenly at high speed, then added to a screw extruder to melt and extrude, and then enters the melt blown through the material path and metering pump Die head, the melt meets high-speed hot air at the outlet of the melt-blown die head, and is drawn and refined under the action of high-speed hot air, and then deposited on the net curtain to form polystyrene / polypropylene blended melt-blown oil-absorbing material . After testing, the crystallinity of the oil-absorbing material is 17%, the oil-absorbing ratio reaches 11.3g / g, the absorption saturation can be reached within 5 minutes, and the oil-retention rate is 92.6%.

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Abstract

The invention discloses a melt-blown oil-absorbing material, which is characterized in that the melt-blown fiber body includes two thermoplastic polymers, polystyrene and polypropylene, and the mass percentage of polystyrene and polypropylene is: polypropylene 70%~ 95%, polystyrene 5% to 30%. The melt-blown oil-absorbing material of the present invention has the characteristics of fine fiber diameter, fluffy structure, high porosity, and low density, and the crystallinity of the fiber is low, which greatly improves the oil absorption ratio and oil absorption rate of the product. The melt-blown oil-absorbing material of the present invention The oil absorption rate can be as high as 15.8g / g, and the absorption saturation can be reached within 4 minutes.

Description

technical field [0001] The invention relates to a non-woven oil-absorbing material, in particular to a melt-blown oil-absorbing material, which belongs to the technical field of environmental protection. Background technique [0002] With the rapid development of the energy industry and science and technology, a large amount of oily waste liquid from industry, catering industry and daily life has been discharged, causing serious ecological environmental pollution and energy waste, among which oil pollution is the most serious harm to human beings and the living environment. . my country is a big oil consuming country, and its consumption ranks among the top in the world. In the process of oil extraction, transportation, loading and unloading, processing and use, oil spill accidents from tankers and oily sewage discharges from ships often occur, seriously polluting water quality. In the crude oil spill incident, about 5 million barrels of crude oil flowed into the Gulf of M...

Claims

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Application Information

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IPC IPC(8): D04H3/147D04H3/16D04H3/005B01J20/26B01J20/30C02F1/28
CPCD04H3/147B01J20/26B01J2220/4812C02F1/285C02F2103/007D04H3/005D04H3/16
Inventor 康卫民何宏升程博闻庄旭品李晓捷邓南平刘亚任元林赵义侠李磊
Owner TIANJIN POLYTECHNIC UNIV
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