The physical properties of PLA fibre are close to the nylon and polyester, but its performance is better than polyester, since it is biocompatible, biodegradable and comfortable. It can be used to produce multifilament, monofilament, staple fibre, knitted fabric, nonwoven fabric, etc.
1. Clothing materials
PLA fibre can be blended with cotton, wool, and cellulose to make knitted or woven fabrics, which can be widely used to make knitted underwear, sportswear, swimwear, T-shirts and woven fashion fabrics, casual wear fabric and dress fabrics. Besides, PLA fibre also has good water diffusion, presenting good shape stability and wrinkle resistance.
2. Medical materials
PLA fibre not only has good biocompatibility and biodegradability, but also has good security, having no toxic side effects on the human body, so it can be widely used in the medical field. PLA fibre can be used as surgical sutures, fixtures inside bone, tissue engineering scaffolds, bandages, disposable medical supplies, drug-loaded materials in drug delivery systems, artificial tissues, etc.
3. Industrial materials
PLA fibre and its products are widely used in agriculture, such as agricultural chemicals and fertilizer bags, fishing nets, kelp network and fish lines. Besides, they can also be used to make garbage mesh bag, towel, filter paper and clean cloth in the household materials, tarpaulins, covers, and tents in the outdoor materials. PLA fibre can also be used in carpet, and carpet made of PLA fibre has good bulkiness and resilience, as well as flame retardancy and antibacterial and antifungal properties.
4. Cigarette filter materials
PLA fibre has a strong affinity for polar substance, and reactants generated from the chemical reactions among PLA, tar and low molecular substances can firmly stay on the fibre's surface. Besides, there are micropore and rough feeling on the surface of PLA fibre, helping PLA fiber present the double effect of physical and chemical adsorption in the adsorption process of the flue gas. Moreover, PLA fibre has properties of non-toxicity, low smoke, flame resistance, bacteria resistance and UV resistance. PLA fibre price has certain advantages owing to its lower raw materials and production costs. Therefore, acetate fibre and polypropylene fibre can be replaced by PLA fibre to be used for cigarette filter material.
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