Anisotropic, ultrastrong and light-transmission film designed on wheat straw

Cui, Boyu; Xie, Hao; Sun, Hao; Ji, Tong; Li, Shuang; Jia, Xue; Wang, Weihong

doi:10.1039/d2ta01204a

Cited by 9 publications

(4 citation statements)

References 68 publications

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“…The UCL film with Zn 2+ introduced exhibited a higher density (1.19 g cm −3 ) compared with other films; higher density often meant better mechanical properties. 45 Compared with the broken sample of UCL (Fig. 6e–h), the surface fracture of UCLZn-15 (Fig.…”

Section: Resultsmentioning

confidence: 93%

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Bio-inspired, UV-blocking, water-stable and antioxidant lignin/cellulose films combining high strength, toughness and flexibility

Cui

Liu

et al. 2023

Mater. Chem. Front.

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Section: Resultsmentioning

confidence: 93%

“…Strong and tough materials are undoubtedly highly attractive. 41 The lignin/cellulose films exhibit excellent strength and toughness due to the strategy of constructing sacrificial networks with hydrogen and coordination bonds. Fig.…”

Section: And S5 Esi †)mentioning

confidence: 99%

Bio-inspired, UV-blocking, water-stable and antioxidant lignin/cellulose films combining high strength, toughness and flexibility

Cui

Liu

et al. 2023

Mater. Chem. Front.

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“…Furthermore, the nondestructive inelastic collapse of the tissue structure resulted in SF being a more homogeneous material than NS and DS. Pressure and temperature played crucial roles in achieving cellular ductility through nondestructive compaction. ,, …”

Section: Resultsmentioning

confidence: 99%

Scalable, Flexible, and Highly Transmission Sweet Sorghum Film

Chen,

Tan,

Sun

et al. 2023

ACS Sustainable Chem. Eng.

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As a nonfood crop, sweet sorghum has been extensively utilized for sugar production and biomass energy conversion. However, industrial production generates a significant amount of sweet sorghum skin. Although paper and cellulose-based films are commonly prepared through a bottom-up approach to capitalize on their abundant cellulose content. The bottom-up approach often involves the use of substantial quantities of chemical reagents, thereby posing a serious threat to environmental safety. In this study, inspired by the arrangement of traditional Chinese house roof tiles, we employed a stacking and hot-pressing preparation strategy to transform sweet sorghum skins into flexible sweet sorghum films (SF). SF retained the high degree of orientation of cellulose while obtaining high strength and toughness along with excellent light transmission properties. In particular, the mechanical properties of SF in the direction parallel to the fibers are exceptionally remarkable. The tensile strength measured 796.4 MPa, while the toughness stands at 7.63 MJ/m3. Additionally, SF exhibited outstanding optical characteristics, boasting a remarkable light transmission of 78% and a haze of 60%. Moreover, we established the feasibility of utilizing SF as a functional material for various applications, showcasing its potential for optical management, smart wearables, and electronic devices. Importantly, the successful preparation of large-size SF unlocked possibilities for their widespread and large-scale utilization, thus making a valuable contribution to environmental sustainability.

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“…The decomposition of tissue cells led to the exposure of voids, which was conducive to the expansion and softening of the internal fibers of wheat straw [ 64 ]. After xylanase treatment, the structure of wheat straw was loose and porous and part of the lignin was removed, which can be used to prepare ultra-strong and light-transmission film materials [ 65 ]. The fibers on the surface of the wheat straw in Figure 7 f,h are distinctly visible, the skeleton looser than Figure 7 a,c.…”

Section: Resultsmentioning

confidence: 99%

Effects of Lipase and Xylanase Pretreatment on the Structure and Pulping Properties of Wheat Straw

et al. 2022

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Based on the reduction of environmental pollution, a biological enzyme assisted alkali-oxygen pulping method was explored to improve the delignification efficiency and fiber accessibility of wheat straw and improve the properties of wheat straw pulp. In this paper, lipase and xylanase were used to pretreat wheat straw and the effects of different enzyme types and enzyme dosage on the microstructure and pulp properties of wheat straw were investigated and experimented. The results showed that the lipase can remove fat and wax on the surface of wheat straw, while xylanase degraded the hemicellulose components, such as xylan, of wheat straw fiber, destroyed the structure of the lignin-carbohydrate complex, increasing lignin removal as a result and enhancing the impregnating, diffusion and penetration of alkali. Compared with wheat straw without enzyme pretreatment, the skeleton of wheat straw pretreated by enzyme became looser, the internal cavity appeared and the wall cavity became thin and transparent. The fines decreased obviously and the length of fibers increased. After combined pretreatment with lipase (15 U·g−1) and xylanase (15 U·g−1), the pulping performance of wheat straw was improved and the tensile index (97.37 N·m·g−1), brightness (40.9% ISO) and yield (58.10%) of the pulp increased by 12.9%, 19.9% and 9.9%, respectively. It can be seen that enzyme pretreatment is a green and effective approach to improving the alkali-oxygen pulping performance of wheat straw.

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Anisotropic, ultrastrong and light-transmission film designed on wheat straw

Abstract: Converting wheat straw waste into a high-performance material is necessary and challenging from the perspective of “waste to wealth” and green development. This study successfully fabricated an anisotropic ultrastrong, light-transmission,...

Cited by 9 publications

References 68 publications

Bio-inspired, UV-blocking, water-stable and antioxidant lignin/cellulose films combining high strength, toughness and flexibility

Bio-inspired, UV-blocking, water-stable and antioxidant lignin/cellulose films combining high strength, toughness and flexibility

Scalable, Flexible, and Highly Transmission Sweet Sorghum Film

Effects of Lipase and Xylanase Pretreatment on the Structure and Pulping Properties of Wheat Straw

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