WebNov 1, 2007 · The effects of enzymes on the hydrolysis of polylactic acid fibers is evaluated by means of fiber weight loss, fiber strength and fiber surface observation. It is found that proteases derived from Bacillus subtilis and Bacillus licheniformis had remarkable activities on polylactic acid fibers. It is also observed that the hydrolysis of ... WebIn the case of textile acrylic fibers (polyacrylonitrile, PAN), which include copolymers of acrylonitrile and vinyl acetate, some limited hydrolysis at fiber surfaces of vinyl acetate (R-OC(O)CH 3) side groups to vinyl alcohol (R-OH) by esterase enzymes or conversion of nitrile (R-CN) side groups to amide (R–C(O)NH 2) and carboxylic acid (R ...
Enzymatic hydrolysis of polylactic acid fiber - PubMed
WebThe present study investigates the feasibility of utilizing polylactic acid (PLA) and PLA-based natural fiber-reinforced composites (NFRCs) in mechanical recycling. A conical twin screw extrusion (CTSE) process was utilized to recycle PLA and PLA-based NFRCs consisting of 90 wt.% PLA and a 10 wt.% proportion of either basalt fibers (BFs) or … Webdegradation of PLA fabrics. Among the three enzymes evaluated for enzymatic degradation, alcalase was the most efficient enzymes. This study established the mechanism of biodegra - dation of PLA nonwovens, which might prove useful in the textile industry. Keywords polylactic acid(PLA), fabric, biodegradation, enzyme hydrolysis, … river cruise ships in europe
Modification of polylactic acid fabric by two lipolytic enzyme hydrolysis
WebOct 22, 2024 · Polylactic acid (PLA) is expected to replace many general-purpose plastics, especially those used for food packaging and agricultural mulch. In composting, the … WebOct 22, 2024 · Polylactic acid (PLA) is expected to replace many general-purpose plastics, especially those used for food packaging and agricultural mulch. In composting, the degradation speed of PLA is affected by the molecular weight, crystallinity, and microbial activity. PLA with a molecular weight of less than 10,000 has been reported to have … WebJun 30, 2012 · It is also observed that the hydrolysis of polylactic acid fibers with these enzymes causes a serious drop in fiber strength, although fiber weight loss is lower. … river cruises in cleveland ohio