The mass consumption of plastic straws already seriously causes environmental pollution and harms human health, which urgently requires the manufacture of eco-friendly straws as alternatives. Herein, a facile approach was reported for producing tough, water-resistant, and biodegradable lignocellulose straws. The renewable agricultural residue (i.e., rice stalk) was pretreated with a deep eutectic solvent to redistribute lignin from the stalk fibers and obtain two cellulosic materials: lignin-regenerated cellulosic fiber (LRCF) and lignin-dissolved cellulosic fiber (LDCF). The LRCF and LDCF were refined and fibrillated and subsequently utilized to form a wet film. The wet film was then rolled into a tube without any adhesives and dried as straw products. The obtained straws exhibited excellent mechanical properties (maximum tensile strength and toughness of 90.2 MPa and 15.3 MJ/m³, respectively), water resistance (maximum water contact angle of 95.34°), and natural biodegradability (the fastest complete degradation in 25 days). These straws are fully derived from lignocellulose biomass and provide environmentally friendly alternatives to plastic straws.

中文翻译：

---

由农业废料纤维制成的可持续吸管，具有优异的韧性、防水性和生物降解性


塑料吸管的大量消费已经严重造成环境污染并危害人体健康，迫切需要生产环保型吸管作为替代品。本文报道了一种生产坚韧、防水且可生物降解的木质纤维素吸管的简便方法。利用低共熔溶剂对可再生农业剩余物（即稻秆）进行预处理，使稻秆纤维中的木质素重新分布，得到两种纤维素材料：木质素再生纤维素纤维（LRCF）和木质素溶解纤维素纤维（LDCF）。 LRCF 和 LDCF 经过精制和原纤化，随后用于形成湿膜。然后将湿膜卷成无任何粘合剂的管状并干燥为秸秆产品。所得秸秆具有优异的机械性能（最大拉伸强度和韧性分别为90.2 MPa和15.3 MJ/m ³ ）、耐水性（最大水接触角为95.34°）和自然生物降解性（最快） 25 天内完全降解）。这些吸管完全源自木质纤维素生物质，是塑料吸管的环保替代品。