Modification of Leather Split by In Situ Polymerization of Acrylates

Xu, Weixing; Zhou, Jianfei; Wang, Yanan; Shi, Bi

doi:10.1155/2016/7460572

Cited by 3 publications

(2 citation statements)

References 14 publications

(19 reference statements)

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“…Crust leather samples prepared by standard chrome tanning and Bio-Ac retanning, exhibit a clean grain surface, and in general, SEM observations are in good agreement with analogous data reported in literature [43,44,45,46]. At low magnification (Figure 5, picture a) it is possible to observe the grain at the top of the image.…”

Section: Resultssupporting

confidence: 89%

Efficient Chemo-Enzymatic Transformation of Animal Biomass Waste for Eco-Friendly Leather Production

Sole

Taddei²,

Franceschi³

et al. 2019

Molecules

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Enzymatically processed animal biomass derived from treated bovine hides (wet blue scraps) is herein used as building block for the synthesis of a novel biopolymer. An enzymatic hydrolysis process allows to produce water-soluble lower molecular weight proteins (Bio-A), which are then reacted with glycerol and maleic anhydride (MA) in order to obtain a new intermediate (Bio-IA). With Bio-IA in hand, co-polymerization in the presence of acrylic acid is then carried out. Hydrolysed biomass, intermediates and the final biopolymer (Bio-Ac) have been characterized by means of NMR, FTIR and GPC analysis. Bio-Ac shows good performance when used as retanning agent to produce leather. Physical and mechanical properties of the leather treated with Bio-Ac have been compared with acrylic resin retanned leather, showing similar performance. The reported protocol represents an environmental-friendly interesting alternative to traditional petrochemical based retanning agents, commonly used by the leather industry.

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Section: Resultssupporting

confidence: 89%

Efficient Chemo-Enzymatic Transformation of Animal Biomass Waste for Eco-Friendly Leather Production

Sole

Taddei²,

Franceschi³

et al. 2019

Molecules

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“…The addition of SLF increased the T g of NBR by 2.6 °C. Because the surface of SLF is covered by calcium and chromium bound collagen and grease, thus forming hydrophobicity [27],the formation of a blend polymer by miscibility of the two surfaces of NBR and SLF. The result of the composition is that the addition of collagen fibers with higher T g causes the glass transition temperature of compound to increase by blending with NBR [20].…”

Section: Thermal Performance Of Nbr-slfmentioning

confidence: 99%

Research on the composite and functional characteristics of leather fiber mixed with nitrile rubber

et al. 2021

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The recycling of leather solid waste not only involves resource utilization and environmental protection but also has important significance for the sustainable development of the leather industry. In this paper, the leather waste was crushed into fibers, which were stabilized and mixed with nitrile-butadiene rubber (NBR). The mixture was milled and vulcanized and a composite NBR-SLF (Stabilized Leather Fiber) is prepared for sealing material. The physical and mechanical properties, water resistance, oil resistance and aging resistance of NBR-SLF were tested and analyzed. It is found that the optimized NBR-SLF not only reduces the cost of raw material, but also changes the physical and mechanical performance of NBR. As a sealing material, it satisfies the substitution of NBR in terms of hardness and thermal stability. Especially the anti-aging ability is better than NBR. Graphical abstract

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Utilization of Collagen Wastes as Bioretanning Agent and Effects on the Mechanical Properties of Leather

Sancakli

Başaran

Arıcan³

et al. 2023

Tekstil Ve Konfeksiyon

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A bioretanning agent was developed as an alternative to conventional synthetic retanning agents to pave the way for sustainability in the leather industry. Tanned solid waste shavings obtained from leather processing was utilized to produce a proteinic sub-structure for constitution building block of the bioretanning agent's backbone. The protein hydrolyzates were acquired with different molecular weights and the hybrid biopolymers were obtained by grafting the hydrolyzates with acrylic acids (AAc) and acrylamides (AAm). To evaluate the properties imparted by the designed bioretanning agent, it was incorporated into the leather in the retanning processes and compared to the control samples fabricated with conventional procedures. Penetration of hybrid biopolymer into the matrix for retanning was achieved easily, and using low and high molecular weight biopolymers have been recorded by 20% and 23% of improvement on the mechanical performance of the leather samples, respectively. The ratio of the hydrolyzate and AAm/AAc was found to be fitted at 1:2 for both. Furthermore, as per the evaluation of the leathers retanned by novel biopolymer, the results were promising in terms of technical viability and revealed that the biopolymer usage could enhance the mechanical performance of the leather while benefiting from the waste-to-wealth approach.

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Modification of Leather Split by In Situ Polymerization of Acrylates

Cited by 3 publications

References 14 publications

Efficient Chemo-Enzymatic Transformation of Animal Biomass Waste for Eco-Friendly Leather Production

Efficient Chemo-Enzymatic Transformation of Animal Biomass Waste for Eco-Friendly Leather Production

Research on the composite and functional characteristics of leather fiber mixed with nitrile rubber

Utilization of Collagen Wastes as Bioretanning Agent and Effects on the Mechanical Properties of Leather

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