The reason why bamboo fiber can effectively remove grease and grease is not easy to stick to the surface is closely related to its unique physical structure and chemical composition. The specific mechanism can be explained from the following perspectives:
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1.
** Micro-nano structure of fiber surface **
- ** Natural porous and convex surface ** : Bamboo fiber surface has natural micro-pores and uneven texture, this structure is similar to the "lotus leaf effect" (hydrophobic principle), can reduce the actual contact area of oil and fiber, so that oil is easier to be stripped rather than adhered to.
- ** Wax layer protection ** : Bamboo fiber in the natural growth process will form a thin layer of natural wax layer ** (similar to the bamboo leaf surface hydrophobic protective layer), this layer of wax has oleophobic, can reduce the adhesion of oil.
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2.
** Chemical composition of oleophobic **
- ** Low surface energy substances ** : Bamboo fiber contains lignin, hemicellulose and other natural components, the surface energy of these substances is low (similar to the oleophobic characteristics of plastics), and high surface energy oil (such as edible oil, mineral oil) is not easy to form a strong interaction, so the oil is difficult to infiltrate the fiber surface.
** Dual characteristics of hydrophilic and oleophobic ** : Although the bamboo fiber itself is hydrophilic (easy to absorb water), the micropores and waxy layer on its surface may form a "selective wetting" phenomenon - water is sucked into the fiber due to capillary action, and oil is blocked in the outer layer due to high surface tension, thus showing an "oleophobic" effect.
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3.
** Dynamic decontamination mechanism **
- ** Adsorption and release balance ** : The porous structure of bamboo fiber can temporarily adsorb oil, but during the cleaning process (such as water or mechanical friction), the adsorbed oil will be released and washed away with the water, rather than permanently attached.
- ** Indirect effect of antibacterial ingredients ** : Antibacterial ingredients such as "bamboo quinone" in bamboo fiber can inhibit sticky substances produced by oil corruption (such as fatty acid oxidation products), to avoid oil corruption and more stubborn adhesion.
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4.
** Performance in practical applications **
- ** Cleaning tools (such as bamboo fiber rags) ** : When wiping the oil, the physical structure of bamboo fiber will "scrape" the oil from the surface through friction, and at the same time, the micro-pores adsorb a small amount of oil, and finally release the oil through washing to achieve the "self-cleaning" effect.
- ** Textile stain resistance ** : Clothing or napkins made of bamboo fiber, due to oleophobic and antibacterial properties, can reduce oil stain penetration and odor residue.
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Summary:
The best oleophobic properties of bamboo fiber are essentially the result of the joint action of its best natural structure (micropores, waxy layers) and best chemical composition (low surface energy substances). This feature enables it to adsorb grease (porous structure), reduce the long-term adhesion of oil (oleophobic surface), coupled with environmentally friendly and degradable characteristics, becoming an ideal oiling material.
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