Natural rubber bio-nanocomposites reinforced with self-assembled chitin nanofibers from aqueous KOH/urea solution

Ding, Beibei; Huang, Shasha; Sheng, Kai; Hou, Jiarui; Gao, Huichang; Duan, Yongxin; Zhang, Jianming

doi:10.1016/j.carbpol.2019.115230

Cited by 37 publications

(17 citation statements)

References 48 publications

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“…The NR from Hevea brasiliensis (the Para rubber tree), is a sustainable bio-resource of elastomer and is commonly used to make tires, mechanical goods, and diverse items in daily life (e.g., condoms, gloves, and rain boots). [4,5] However, the low polarity and high hydrophobicity of NR limits its use unless it is further functionalized, such as with a wide range of nucleophiles to provide sites for hydrogen bondmediated aggregation within the NR for self-healing applications, [6] swelling in water, or to enhance adhesion to polar polymers and metal surfaces. Hence, chemical modification by different methods, such as epoxidation, chlorination, and grafting with hydrophilic monomers, onto the NR molecular chain has been developed for fabricating hydrophilic NR.…”

Section: Introductionmentioning

confidence: 99%

Preparation of environment‐friendly hydrophilic rubber from natural rubber grafted with sodium acrylate by reactive melt mixing

Nuinu

Srichan

Ngamlerd

et al. 2022

Polymer Engineering & Sci

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In this research, we present an easy way to prepare environment-friendly hydrophilic rubbers derived from natural rubber (NR) grafted with sodium acrylate (NaAA) through reactive blending using an internal mixer operated at a rotor speed of 80 rpm and 150 C. The key parameters affecting the grafting efficiency of NR-g-NaAA were investigated in terms of the fill factor (FF) of the chamber, mixing time, and NaAA content. Lastly, the grafted sample (with a suitable grafting efficiency) was crosslinked using peroxide curing to produce X(NR-g-NaAA) as a hydrophilic NR sample. Results showed that grafting effi-

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Section: Introductionmentioning

confidence: 99%

Preparation of environment‐friendly hydrophilic rubber from natural rubber grafted with sodium acrylate by reactive melt mixing

Nuinu

Srichan

Ngamlerd

et al. 2022

Polymer Engineering & Sci

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“…The biocompatibility for the two films is compared in Figure d. The absorbance of the NR/GC film is higher than that of the NR/S film, suggesting the NR/GC film has better biocompatibility than the NR/S film. , This is because the sulfur curing system is toxic, while NC owns good biocompatibility. To test the reprocessing of the NR/GC film and the NR/S film, the samples were cut into crumbs and then compressed at 160 °C for 10 min, as displayed in Figure S9.…”

Section: Resultsmentioning

confidence: 99%

Natural Rubber Latex Reinforced by Graphene Oxide/Zwitterionic Chitin Nanocrystal Hybrids for High-Performance Elastomers without Sulfur Vulcanization

Liu

Huang

Hou

et al. 2021

ACS Sustainable Chem. Eng.

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Natural rubber (NR) demonstrates excellent mechanical strength and tensile elasticity after vulcanization. However, the sulfur curing system will generate many problems, including the usage of toxic accelerators, blooming, and unrecyclable products. Therefore, it is a big challenge to prepare high-performance elastomers without sulfur vulcanization in the natural rubber (NR) industry. Here, a small amount of graphene oxide (GO)/zwitterionic chitin nanocrystals (NC) hybrids (GC) are first introduced in NR latex to reinforce unvulcanized NR. The NR/GC nanocomposite exhibits a high tensile strength of 19.2 MPa and a large breaking elongation of 825.9%, rivaling that of sulfur-vulcanized rubber. NC with amino and carboxyl groups can act as a macromolecular bridge and enhance the interfacial interaction between GO sheets and NR particles due to its strong attraction to both of them. Moreover, the dispersion of GO in NR is dramatically improved after adding NC due to the hybrid-synergetic effect. Thus, the formed uniform hybrid nanofiller networks strongly absorbed on NR macromolecules can significantly enhance the mechanical properties of nanocomposites. As a concept of proof, the medical gloves prepared by NR/GC latex show better performances than those of the vulcanizates, including good recycle ability, higher water vapor permeability, and good biocompatibility.

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“…Natural polymers or bioderived materials have stood out in the construction of biomaterials for pro-angiogenic therapies, since they are biocompatible, show low side effects, are of wide availability, easy to handle, and are of low cost [287]. Natural polymer occur in nature and can be extracted using physical or chemical methods and present different physical and chemical characteristics [288]. These characteristics can be modified during the preparation of biomaterials reaching specific goals, such as sustained release of proteins, degradability, mechanical resistance, among others [289].…”

Section: Ceramics Composites and Polymers Pro-angiogenic Biomaterialsmentioning

confidence: 99%

Pro-angiogenic approach for skeletal muscle regeneration

Floriano

Costa

Vega

et al. 2022

Biochimica et Biophysica Acta (BBA) - General Subjects

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Natural rubber bio-nanocomposites reinforced with self-assembled chitin nanofibers from aqueous KOH/urea solution

Cited by 37 publications

References 48 publications

Preparation of environment‐friendly hydrophilic rubber from natural rubber grafted with sodium acrylate by reactive melt mixing

Preparation of environment‐friendly hydrophilic rubber from natural rubber grafted with sodium acrylate by reactive melt mixing

Natural Rubber Latex Reinforced by Graphene Oxide/Zwitterionic Chitin Nanocrystal Hybrids for High-Performance Elastomers without Sulfur Vulcanization

Pro-angiogenic approach for skeletal muscle regeneration

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