What is oil-absorbing cotton? Oil absorption effect and classification

Oil-absorbing cotton can control and adsorb petroleum hydrocarbons, all types of acid (including hydrofluoric acid), alkaline hazardous chemicals, non-corrosive liquids, and large-scale oil spill accidents at sea. Adsorption cotton is the most commonly used item for disposal of spills after leakage of oil and chemical spills.

Oil-absorbing cotton is made of ultra-fine non-woven fabric with lipophilic properties. It does not contain chemical agents and does not cause secondary pollution. It can quickly absorb oils, organic solvents, hydrocarbons, vegetable oils and other liquids that are tens of times the weight of oil.

Manufacture of absorbent cotton

Polypropylene (PP) absorbent cotton manufacturing process is to first obtain melt-blown polypropylene nonwovens, and then made into various forms of absorbent cotton sheets, adsorption pillows, adsorption strips, adsorption cable, oil suction fence.

The process of polypropylene melt-blown fibers and non-woven fabrics is: polypropylene particles feed → melt extrusion → fiber formation → fiber cooling → web formation on spinnerette → reinforcement into cloth.

Oil-absorbing cotton is also known as absorbent cotton, industrial absorbent cotton, and sometimes people simply call it oil-absorbing cotton. Divided into the characteristics of the absorption of materials: oil absorption cotton, chemical absorption cotton (also known as chemical adsorption cotton, absorbent cotton) and general-purpose adsorption cotton.

Oil-absorbing cotton can control and adsorb petroleum hydrocarbons, all types of acid (including hydrofluoric acid), alkaline hazardous chemicals, non-corrosive liquids, and large-scale oil spill accidents at sea. Adsorption cotton is the most commonly used item for disposal of spills after leakage of oil and chemical spills.

(1) After absorbing oil and deoiling, oil-absorbing cotton absorbs only oil and does not absorb water. It is professionally used to absorb petroleum hydrocarbons, hydrocarbons, etc. (such as petroleum, gasoline, lubricating oil, and paint, etc.). When this type of product is used on the surface of the water, it does not absorb water, and after absorption is saturated, it floats on the water. Can absorb 10-20 times its own weight of oil. Usually white. It can be used for the treatment of mechanical oils, drains, oils in warehouses, oil pollution in rivers and rivers, maintenance of clean working environment, and prevention of explosion of oil and gas.

Chemical absorbent cotton is dehydrated and deoiled after it is added with surfactant. It is resistant to strong acids and alkalis. It is suitable for the adsorption of acids, corrosives and other chemical liquids and chemical oils. It is suitable for such as acid and corrosiveness. And other hazardous liquid leakage treatment. Usually pink or red. All chemical spills generally use absorbent cotton, especially acidic and corrosive hazardous chemicals including 98% sulfuric acid and 30% sodium hydroxide, and the use of chemicals to absorb liquid cotton. After contact with irritating or corrosive chemical liquids, the polypropylene material will not decompose and the vivid pink or red color is still very eye-catching, preventing misuse and misappropriation. Suction cotton can also absorb petroleum-based liquids and aqueous solutions.

General-purpose absorption cotton after dehydration and deoiling and adding surfactant, in addition to adding other fibers on this basis, you can not only absorb oil but also water, can be used for mechanical maintenance, vehicle maintenance and oil treatment of the factory floor . Suitable for oils, water, coolants, solvents, pigments, dyes and other unknown liquids. General purpose absorbent cotton is usually grey.

(2) Oil-absorbing cotton products usually have oil-absorbing pads, oil-absorbing strips, oil-absorbing coils, oil-absorbing pillows, and oil-absorbing fences.

The oil-absorbing cotton sheet is suitable for the leakage treatment in a small area, and the oil-absorbing cotton sheet can be directly placed on the liquid surface when used. Leaking liquid will be quickly absorbed, safe and convenient.

Oil-absorbing laps are suitable for leakage treatment on indoor surfaces. Operators can directly pave the ground for adsorption when a leak occurs. In addition, since the oil-absorbing laps are all tear-off self-loading devices, they can also be used instead of wadding when needed.

Oil-absorbing cotton slivers are suitable for use in large-area or multi-volume leaks. Oil-absorbing cotton can be used first to delineate the leakage area and gradually reduce the leakage area. According to the actual leakage area, select the appropriate length of oil absorption tampon, circle timing to ensure that the sliver at both ends of the contact overlap, the formation of a strong barrier to leakage.

Oil-absorbing cotton pillows are used alone or in conjunction with oil-absorbing tampons. In use, the operator can directly place the oil-absorbing cotton pillow on the leaking liquid in a large area (or after being trapped by the oil-absorbing cotton sliver) and directly and rapidly absorb the leaked liquid.

(3) However, the problem of adsorbing cotton, absorbing cotton, adsorbing pillows, adsorbing cables, adsorbing sheets, and oil-absorbing fences is also more prominent. It means that the absorbed liquid can easily overflow from the body again. The selectivity is high and it is only useful for individual chemical liquids. There is no change in the activity or pH of the chemical liquid, toxicity remains, and the overall cost of waste disposal is not low.

Oil-absorbing cotton manufacturing process

Oil-absorbing cotton is a type of fiber and non-woven fabric made of inert polypropylene melt-blown and specially processed to make it absorb liquid effectively and retain it. Adsorption products are wrapped in thread-stitched polypropylene fibers or non-woven fabrics treated with surface activation agents. The outer cloth is tough and durable, and has strong capillary absorption and strong adsorption. So as to absorb the leaked liquid flowing to the oil-absorbing cotton, effectively preventing the spread of leakage, the product can be reused after being twisted and squeezed, and 72%-90% of the leakage liquid can be recovered (depending on the manufacturing process and quality of the oil-absorbing cotton). The advantages of this material are flame retardancy, no dust generation, no storage limit time, and so on.

The manufacturing process of PP oil-absorbing cotton is to first obtain a melt-blown polypropylene nonwoven fabric, and then make various types of oil-absorbing cotton sheets, absorbent oil pillows, oil-absorbing strips, oil-absorbing ropes, and oil-absorbing fences.

The technological process of polypropylene melt-blown fibers and non-woven fabrics is: the process of melt-blown non-woven fabrics: polypropylene particles feeding - melt extrusion - fiber formation - fiber cooling - spinning Boarded into a net --- reinforced cloth.

Suction cotton species

Oil-absorbing surface product function classification: oil-type oil-absorbing cotton; chemical oil-absorbing cotton; universal protective oil-absorbing cotton three major categories;

1. Oil-absorbing cotton is suitable for absorbing petroleum hydrogen, hydrocarbons and other non-absorbing water; Xinluo absorbing cotton is used for professional adsorption of surface layer products, and can also be used for surface oil liquids during rain. The internal filler is polypropylene that absorbs oil and repels water. When this type of product is used on the surface of water, it does not absorb water, so the cell will still float on the water after it leaks and will not sink into the water (oil only); Adsorption tampon, Xinluo adsorption cotton sheet and Xinluo absorption cotton pillow are available. Xinluo Oil Adsorption Series is marked with white, while the leakage treatment cartridges and other packaged products use clear signs;

2. Chemical oil-absorbing cotton series is suitable for acid, corrosive and other chemical liquids. Chemical oil absorbent cotton is suitable for leakage treatment such as acid, corrosive and other hazardous liquids. At the same time, HAZ-MAT absorbent cotton is also suitable for the leakage treatment of unknown liquids. Chemical oil adsorption cotton sliver, absorbent cotton tablets, absorbent cotton pillows, sand adsorption and leakage treatment cartridges and other classifications, its use of pink identification labels, more significant distinction.

3. The universal oil-absorbing cotton is suitable for oils, water, coolants, solvents, pigments, dyes and other unknown liquids; the internal filler is surface-activated polypropylene and can therefore absorb non-petroleum liquids (Universal) Universal absorbent cotton is designed for non-hazardous liquid leaks such as oils, water, coolants and solvents. Such as blue Xinluo adsorption tampon, Xinluo adsorption cotton pieces and the new network adsorption cotton pillow for selection. General purpose absorbent cotton is marked with blue and gray, and a blue SPILLKIT tag is attached to the new absorbent cotton for easy identification. The above products are all wrapped in a polypropylene nonwoven fabric treated with a surface-activated treatment agent sewn with threads. The outer fabric is strong and durable, and has strong adsorption, so as to absorb the leakage liquid and flow to the absorbent cotton, effectively preventing The spread of the leak, the product after twisting, squeezing can recover 72% of the leak.

China Labor Insurance Network