Poly(lactic acid) or polylactic acid or polylactide (PLA) is a biodegradable and bioactive thermoplastic aliphatic polyester derived from renewable resources, such as corn starch (in the United States and Canada), cassava roots, chips or starch (mostly in Asia), or sugarcane (in the rest of the world). In 2010, PLA had the second highest consumption volume of any bioplastic of the world.
PLA can be processed by extrusion such as 3d printing, injection molding, film and sheet casting, and spinning, providing access to a wide range of materials.
3D Printed Human skull with data from Computed Tomography. Transparent PLA. PLA is used as a feedstock material in desktop fused filament fabrication 3D printers (e.g. RepRap). PLA printed solids can be encased in plaster-like moulding materials, then burned out in a furnace, so that the resulting void can be filled with molten metal. This is known as "lost PLA casting", a type of investment casting.
Being able to degrade into innocuous lactic acid, PLA is used as medical implants in the form of anchors, screws, plates, pins, rods, and as a mesh. Depending on the exact type used, it breaks down inside the body within 6 months to 2 years. This gradual degradation is desirable for a support structure, because it gradually transfers the load to the body (e.g. the bone) as that area heals. The strength characteristics of PLA and PLLA implants are well documented.
PLA can also be used as a decomposable packaging material, either cast, injection-molded, or spun. Cups and bags have been made from this material. In the form of a film, it shrinks upon heating, allowing it to be used in shrink tunnels. It is useful for producing loose-fill packaging, compost bags, food packaging, and disposable tableware. In the form of fibers and nonwoven fabrics, PLA also has many potential uses, for example as upholstery, disposable garments, awnings, feminine hygiene products, and diapers. Thanks to its bio-compatibility and biodegradability, PLA has also found ample interest as a polymeric scaffold for drug delivery purposes.
Racemic and regular PLLA has a low glass transition temperature, which is undesirable. A stereocomplex of PDLA and PLLA has a higher glass transition temperatures, lending it more mechanical strength. It has a wide range of applications, such as woven shirts (ironability), microwavable trays, hot-fill applications and even engineering plastics (in this case, the stereocomplex is blended with a rubber-like polymer such as ABS). Such blends also have good form stability and visual transparency, making them useful for low-end packaging applications. Pure poly-L-lactic acid (PLLA), on the other hand, is the main ingredient in Sculptra, a long-lasting facial volume enhancer, primarily used for lipoatrophy of cheeks. Progress in biotechnology has resulted in the development of commercial production of the D enantiomer form, something that was not possible until recently.
PLA is also used in e-tobacco industry. Philip Morris's iQOS heets, includes PLA to slow the vapour down without absorbing it, giving it time to cool to a more pleasant temperature before inhaling it.
Application: Feminine hygiene Adult incontinence Diapers Baby wipes Moisturized tolit paper *Home Care Napkins and tablecloths Pre-moistened cleaning wipes Dry wipes Kitchen towels Vacuum cleaner bags Kitchen and fan filters ***Food Packaging ***Industrial Applications Liquid filtration (e.g. coffee filter bag) Wallpapers Industrial wipes Oil exploration PLA staple fiber is a new biodegradable fiber which is made from corn and plant. it can be used in many fabric and clothing
PLA Fiber Item Name PLA Fiber Keyword PLA Fiber Main Raw Materials Polylactic acid fiber Fiber Length 38mm-120mm Fineness 1.5D-10D Cut length 10mm,36mm,38mm,64mm,72mm Color White & Dope Dyed Feature Flame Retardant, Anti-Bacteria, Anti-UV, Eco-Friendly, Radiation-Resistant, Biodegradable Main Application Filling Materials, Non-woven Fabric Place of Origin Suzhou China(Mainland) MOQ 1000 Kilogram/Kilograms pla fiber