Oil absorption felt material with skin/core composite structure

Abstract

The invention relates to an oil absorption felt material with a skin / core composite structure. A compact non-woven material forms a skin layer, and a core layer material is composed of multilayers of loose non-woven materials. The skin layer material is a polypropylene melt-blown non-woven material with a gram weight of 15-50g / m<2>, the core layer material is a polypropylene / polyester mixed melt-blown non-woven material with a thickness of 3-5cm, the core layer material is coated by the skin layer material hermetically, and the periphery is sealed by means of hot pressing. For the oil absorption felt material, the skin layer material has high oleophylic and hydrophobic effects, when the oil absorption felt contacts oil, oil molecules can be led into the oil absorption felt inner core to be adsorbed by the inner core layer material, and water molecules cannot enter the core layer through the skin layer material, the core layer material can adsorb oil products with a self weight of 10-15 times, the oil products are sealed and stored in the oil absorption felt core layer and do not leak. The oil absorption felt provided by the invention has high oil absorption and oil holding performance.

Description

technical field [0001] The invention relates to an oil-absorbing felt material with a skin / core composite structure for absorbing floating oil on the water surface. Background technique [0002] In recent years, environmental and water resource pollution caused by leakage of toxic organic liquids and crude oil has become a major concern at home and abroad. After a leakage accident occurs on the water surface, a large amount of organic matter will spread on the water surface and form a dense oil film, which will sharply reduce the oxygen content in the water, causing plankton, fish, shrimp and other organisms to suffocate and die due to lack of oxygen, resulting in severe environmental and biological disasters. In 1989, the Exxon Vadez oil tanker leaked 11 million gallons of crude oil. Twenty years later, the coast of Alaska, USA is still covered with a large amount of oil; the oil spill in the Gulf of Mexico in 2010 shocked the whole world. The benzene factory exploded, an...

AI Technical Summary

Problems solved by technology

[0004] The existing polypropylene oil-absorbing felt products have good oil-absorbing performance, but generally have the defects of poor oil-holding performance and poor oil-water selectivity

When the oil-absorbing felt absorbs a lot of oil, when the oil-absorbing felt is dragged, transported and transferred, the oil is likely to leak from the oil-absorbing felt and cause secondary pollution

Polypropylene oil-absorbing felt products are used in the process of recovering floating oil on the water surface. If they are exposed to water for a long time, they will have a certain degree of water absorption, which will affect the oil-absorbing performance of the oil-absorbing felt.

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