International Journal of Polymer Science最新文献_第4页

Extraction and Physicochemical and Thermomechanical Characterizations of Water Hyacinth Fibers Eichhornia crassipes 水葫芦纤维的提取及理化热力学特性研究

4区化学

International Journal of Polymer Science Pub Date : 2023-10-23 DOI: 10.1155/2023/6652978

Brillant Djomsi Wembe, Nfor Clins Wiryikfu, Guy Edgar Ntamack, Bienvenue Kenmeugne, Theodore Tchotang, Djomi Rolland, Tido Tiwa Stanislas

{"title":"Extraction and Physicochemical and Thermomechanical Characterizations of Water Hyacinth Fibers Eichhornia crassipes","authors":"Brillant Djomsi Wembe, Nfor Clins Wiryikfu, Guy Edgar Ntamack, Bienvenue Kenmeugne, Theodore Tchotang, Djomi Rolland, Tido Tiwa Stanislas","doi":"10.1155/2023/6652978","DOIUrl":"https://doi.org/10.1155/2023/6652978","url":null,"abstract":"The presence of floating plants is becoming an uncontrollable issue on the banks of Douala, Cameroon, notably in the city of Bonaberi, where the water hyacinth is expanding incredibly quickly. The aim of this study is to evaluate the mechanical and physicochemical performance of water hyacinth fibers for pulp manufacture. To this end, tensile tests on fiber bundles in accordance with ISO 13934-1:2013, thermogravimetric analysis (TGA), chemical composition evaluation in accordance with ASTM 1972 and 1977, and absorption rate were carried out. The results obtained indicate that the fiber is composed of a variety of fibrils with irregular cross-sections, with an average diameter ranging from 0.02 to 0.09 mm. The fibers absorb 42.03% of their weight in water, and their density ranges from 1.23 to 1.45 g/cm3. According to mechanical tests, the fiber has a maximum tensile strength of around 0.64 MPa, a specific modulus of 6.45 MPa/g/cm3, and an elongation at break of 1.8%. For the chemical characteristics of the fiber, cellulose, hemicellulose, and lignin contents are 68.3%, 11.3%, and 7.4%, respectively, while pectin and ash content concentrations are 4.8% and 7.8%, respectively. Thus, in order to determine whether the plant is suitable for making pulp and paper, this investigation was conducted to examine its fiber properties. It was found that the water hyacinth fibers were superior to flax straw and jute fibers in all qualities, but not as good as silk cotton and bagasse fibers. Given the information above, water hyacinth has been recognized as a potential raw material for the pulp and paper industries, though.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"48 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135365445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Base-Catalyzed Polymerization of a Substituted Methylenebicyclo[3.3.1]nonane 取代亚甲基双环[3.3.1]壬烷的碱催化聚合

4区化学

International Journal of Polymer Science Pub Date : 2023-10-12 DOI: 10.1155/2023/5580382

Sujeet Kumar Thakur, Seera Raviteja, Tayur N. Guru Row, Sambasivan Venkat Eswaran

{"title":"Base-Catalyzed Polymerization of a Substituted Methylenebicyclo[3.3.1]nonane","authors":"Sujeet Kumar Thakur, Seera Raviteja, Tayur N. Guru Row, Sambasivan Venkat Eswaran","doi":"10.1155/2023/5580382","DOIUrl":"https://doi.org/10.1155/2023/5580382","url":null,"abstract":"Lignite humic acid on reaction with formaldehyde and aqueous alkali led to a polybicyclo[3.3.1]nonane. This was characterized spectroscopically using mass spectrometry, FT-IR, powder X-ray diffraction, TEM, and NMR studies (1H-NMR, CP-MAS-SS-NMR) which though challenging were useful for confirming the structure of the BCN polymer. The product showed an envelope peak in its MALDI-MS spectrum, based on which M ̅ n , M ̅ w , and polydispersity index have been calculated. Based on the NMR spectrum of intermediate, the presence of the N-formyl group has been shown in it. The new polymer could be useful in agriculture in water-deficient areas. Most papers on humic acids include only broad and general information like elemental analysis (occasionally TEM, SEM, TGA, DSC, etc.). Very complicated structures have been proposed by scientists earlier. Only in very recent years, it has been recognized that these are relatively small molecules which masquerade as supramolecular structures. It is pointed out that most papers do not put down the structure of the compound and provide no concrete proof for proposing such structures. The novelty of our work is that we have characterized the precise molecular weights based on mass spectrometry and NMR spectroscopy along with a well-defined structure. This is not the case in most other publications.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136014389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoporous Double-Gyroid Structure from ABC Triblock Terpolymer Thick Films ABC三嵌段三元共聚物厚膜的纳米多孔双旋回结构

4区化学

International Journal of Polymer Science Pub Date : 2023-10-10 DOI: 10.1155/2023/9598572

Karim Aissou, Maximilien Coronas, Daniel Hermida-Merino, Eduardo Solano, Didier Cot, Stéphanie Roualdes, Denis Bouyer, Damien Quemener

{"title":"Nanoporous Double-Gyroid Structure from ABC Triblock Terpolymer Thick Films","authors":"Karim Aissou, Maximilien Coronas, Daniel Hermida-Merino, Eduardo Solano, Didier Cot, Stéphanie Roualdes, Denis Bouyer, Damien Quemener","doi":"10.1155/2023/9598572","DOIUrl":"https://doi.org/10.1155/2023/9598572","url":null,"abstract":"The creation of nanostructured materials with a triply periodic minimal surface (TPMS), defined as a zero mean curvature surface having periodicity in three-dimensional space, is an emerging solution to optimize transport (i.e., the ion-conductivity and hydraulic permeability) through the next-generation of electrolyte and ultrafiltration (UF) membranes. Here, we used an amphiphilic ABC-type block copolymer (BCP) (namely, polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) (PS-b-P2VP-b-PEO)) to generate symmetric thick films (~8 μm) composed entirely of a TPMS-based structure, consisting of a PS matrix with a double gyroid (DG) minimal surface and hydrophilic stimuli-responsive (P2VP/PEO) nanochannels. To produce the core/shell DG-structured monoliths, we used a process combining the nonsolvent-induced phase separation (NIPS) process with a solvent vapor annealing (SVA) treatment. From such symmetric ABC-type BCP-thick films generated by NIPS-SVA, a mean hydraulic permeability as high as 514 L h-1 m-2 bar-1 was measured. This mean value was revealed to be nearly equal to that of asymmetric PS-b-P2VP-b-PEO membranes manufactured by NIPS, which have a substructure with an implicit irregular and random distribution of the internal pore structure and a skin layer with P2VP/PEO nanopores arranged into a hexagonal array.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136293865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites 分层模式、纤维结构和碱化对香蕉纤维环氧复合材料物理、机械和形态行为的影响

4区化学

International Journal of Polymer Science Pub Date : 2023-09-30 DOI: 10.1155/2023/6023056

Gezahgn Gebremaryam, Kiran Shahapurkar, Venkatesh Chenrayan, Fadi Althoey, Haitham M. Hadidi, Manzoore Elahi M. Soudagar, Vineet Tirth, Ali Algahtani, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani, H. C. Ananda Murthy

{"title":"Influence of Layering Pattern, Fibre Architecture, and Alkalization on Physical, Mechanical, and Morphological Behaviour of Banana Fibre Epoxy Composites","authors":"Gezahgn Gebremaryam, Kiran Shahapurkar, Venkatesh Chenrayan, Fadi Althoey, Haitham M. Hadidi, Manzoore Elahi M. Soudagar, Vineet Tirth, Ali Algahtani, Tawfiq Al-Mughanam, Abdulaziz H. Alghtani, H. C. Ananda Murthy","doi":"10.1155/2023/6023056","DOIUrl":"https://doi.org/10.1155/2023/6023056","url":null,"abstract":"In the current investigation, the mechanical properties of epoxy composites reinforced with banana pseudostem fibres, specifically focusing on tensile and impact behaviour, are investigated. The manufacturing process employed the meticulous hand-lay-up technique to fabricate six distinct samples. These samples included various combinations of short and woven banana fibres, treated and untreated, as well as a hybrid configuration involving layers of woven and short fibres. A fixed weight ratio of 60% fibres to 40% epoxy matrix was maintained for consistency. To ensure optimal material integrity, a careful application of resin and hardener in a 10 : 1 weight ratio was layered, with each addition of fibre followed by thorough rolling to eliminate any potential bubbles. The density and void fraction of the resulting composites were meticulously assessed to gauge the influence of this layering approach. Additionally, an X-ray diffraction (XRD) analysis was conducted to ascertain the impact of the chemical treatment on the cellulose content of the fibres. Our findings revealed that the tensile and impact properties were notably superior in the woven fibre composites. In particular, the chemically treated woven banana fibre epoxy composite displayed impressive values of 64.95 MPa for tensile strength and 24.37 KJ/m2 for impact strength. To gain deeper insights into the structure-property relationship, test specimens were analyzed using scanning electron micrographs. Lastly, comparative analysis by mapping the tensile properties from our present work with those from existing studies was carried out.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136279465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Circularity in Materials: A Review on Polymer Composites Made from Agriculture and Textile Waste 材料的循环性:农业和纺织废弃物聚合物复合材料的研究进展

4区化学

International Journal of Polymer Science Pub Date : 2023-09-26 DOI: 10.1155/2023/5872605

Ali Raza Shafqat, Muzzamal Hussain, Yasir Nawab, Munir Ashraf, Sheraz Ahmad, Ghazia Batool

{"title":"Circularity in Materials: A Review on Polymer Composites Made from Agriculture and Textile Waste","authors":"Ali Raza Shafqat, Muzzamal Hussain, Yasir Nawab, Munir Ashraf, Sheraz Ahmad, Ghazia Batool","doi":"10.1155/2023/5872605","DOIUrl":"https://doi.org/10.1155/2023/5872605","url":null,"abstract":"Agriculture and textiles have the highest production yields among all sectors to meet mankind’s basic needs, i.e., feeding and clothing; however, they are top contributors to environmental pollution and global waste generation. Their wastes and byproducts are precious organic materials, they have great potential as raw materials for the manufacturing of valuable products. This review sheds light on various textile and agricultural wastes, waste management issues, and their existing utilization. Current waste processing methods are mostly based on waste-to-energy routes or material reclamation; however, both methods are hazardous for the environment and are inefficient. During the past decade, many researchers have utilized agriculture and textile wastes in the fabrication of composites. Textile and agricultural wastes and byproducts can be efficiently used for composite fabrication and can be suitable alternatives to existing raw materials. Using textiles and agricultural wastes for composite manufacturing can not only address waste management issues and replace non-eco-friendly materials in the composite industry but also significantly improve composite properties.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134885334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Resin Matrix on the Properties of CF/PEI and CF/PAEK Thermoplastic Composites 树脂基体对CF/PEI和CF/PAEK热塑性复合材料性能的影响

4区化学

International Journal of Polymer Science Pub Date : 2023-09-25 DOI: 10.1155/2023/8407907

Wencai Wang, Jindong Zhang, Dongting Gao, Kun Yu, Gang Liu, Ming Wang, Jianan Yao

{"title":"The Effect of Resin Matrix on the Properties of CF/PEI and CF/PAEK Thermoplastic Composites","authors":"Wencai Wang, Jindong Zhang, Dongting Gao, Kun Yu, Gang Liu, Ming Wang, Jianan Yao","doi":"10.1155/2023/8407907","DOIUrl":"https://doi.org/10.1155/2023/8407907","url":null,"abstract":"As the adhesive for composites, the resin matrix directly impacts the molding process and product performance of thermoplastic composites (TPCs). Carbon fiber-reinforced polyetherimide (CF/PEI) and polyaryletherketone (CF/PAEK) composites were prepared by a compression molding process. The interface, interlaminar, and low-speed impact properties of TPCs were studied. The results show that the interfacial shear strength of the CF/PEI composite is ~116 MPa, while the CF/PAEK composite is ~78 MPa. However, the interlaminar and low-speed impact performance of CF/PAEK is better than CF/PEI. Type I fracture toughness ( <math xmlns=\"http://www.w3.org/1998/Math/MathML\" id=\"M1\"> <msub> <mrow> <mi>G</mi> </mrow> <mrow> <mtext>IC</mtext> </mrow> </msub> </math> ) and type II fracture toughness ( <math xmlns=\"http://www.w3.org/1998/Math/MathML\" id=\"M2\"> <msub> <mrow> <mi>G</mi> </mrow> <mrow> <mtext>IIC</mtext> </mrow> </msub> </math> ) of CF/PEI are ~1051 MPa and ~1060 MPa. But those of CF/PAEK are ~1786 MPa and ~2584 MPa, respectively. The compressive strength after the impact of CF/PAEK (~321 MPa) is 40% higher than CF/PEI (~230 MPa).","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135771020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Flexible Composite Sheet with Chrome Shavings Using Polyvinyl Alcohol as a Cross-Linker 以聚乙烯醇为交联剂研制铬刨花柔性复合片材

4区化学

International Journal of Polymer Science Pub Date : 2023-09-12 DOI: 10.1155/2023/6694850

Akash Debnath, Md. Ashraful Alam, Ajoy Kanti Mondal, Md. Tushar Uddin, Md. Aftab Ali Shaikh, S. M. Asaduzzaman Sujan

{"title":"Development of Flexible Composite Sheet with Chrome Shavings Using Polyvinyl Alcohol as a Cross-Linker","authors":"Akash Debnath, Md. Ashraful Alam, Ajoy Kanti Mondal, Md. Tushar Uddin, Md. Aftab Ali Shaikh, S. M. Asaduzzaman Sujan","doi":"10.1155/2023/6694850","DOIUrl":"https://doi.org/10.1155/2023/6694850","url":null,"abstract":"Leather processing generates a huge amount of chromium (Cr) containing wastes, and one of them is chrome shavings (CS), which frequently end up in landfills. It may be harmful to the environment and human health due to the oxidation of Cr(III) to poisonous Cr(VI). Herein, CS and polyvinyl alcohol (PVA) are used for the preparation of flexible CS-PVA composite sheets, using CS as a skeletal and PVA as a cross-linker by a simple and facile technique. CS-PVA composite sheets are characterized by FT-IR, SEM, STA, and UTM. FT-IR analysis of CS-PVA composite sheets indicated the existence of dominating peaks corresponding to collagen amide bands as well as PVA characteristic bands, and it demonstrates the uniformity of the developed composite sheets. When the amount of PVA is increased, the tensile strength of CS-PVA composite sheets increases from 0.21 to 4.17 N/mm2. With increasing of the amount of PVA, the softness decreases from 6.47 to 3.7 mm, and SEM shows decreasing of pores in the composite sheet. The addition of more PVA makes CS-PVA composite sheets more thermally stable. This facile method of preparing CS-PVA composite sheet is low-cost and eco-friendly, having potential applications in various fields, including clothing, leather goods, decoration, packaging, and footwear products, as well as presenting promising platforms for effective utilization of industrial waste materials.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135878869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development, Characterisation, and Performance Evaluation of Some Indigenous Plants for Faecal Sludge Treatment in Ghana 加纳一些处理粪便污泥的本土植物的发展、特性和性能评价

4区化学

International Journal of Polymer Science Pub Date : 2023-09-11 DOI: 10.1155/2023/7470378

Issahaku Ahmed, Esi Awuah, Helen M. K. Essandoh, Sampson Oduro-Kwarteng, Dennis Ofori-Amanfo, Florence Cobbold, Joshua Oduro-Adu

{"title":"Development, Characterisation, and Performance Evaluation of Some Indigenous Plants for Faecal Sludge Treatment in Ghana","authors":"Issahaku Ahmed, Esi Awuah, Helen M. K. Essandoh, Sampson Oduro-Kwarteng, Dennis Ofori-Amanfo, Florence Cobbold, Joshua Oduro-Adu","doi":"10.1155/2023/7470378","DOIUrl":"https://doi.org/10.1155/2023/7470378","url":null,"abstract":"The search for alternative solutions for sustainable management of faecal sludge in the area of dewatering with biocoagulants/bioflocculants remains unfulfilled. Some available and accessible indigenous plants in the northern part of Ghana have been characterised and subsequently evaluated in their suitability for use as biocoagulant/bioflocculants. The Yila (Crossopteryx febrifuga) and the Voulo (Grewia mollis) plants were the indigenous plants used in this study. Three applications from the Yila wooden stem, the Yila bark, and the Voulo at different treatment concentrations with faecal sludge were monitored. The Yila wooden stem gave a potential of pollutant removal up to about 83.99%, 93.79%, and 91.54% for Chemical Oxygen Demand (COD), Total Suspended Solids (TSS), and turbidity, respectively. Application of the Yila bark gave a respective removal efficiency of up to about 77.39%, 82.02%, and 54.60% for COD, TSS, and turbidity. The efficiency of the Voulo plant obtained for COD, TSS, and turbidity was up to about 80.43%, 86.83%, and 72.55%, respectively. No cyanogenic or toxic compounds were identified in the characterised raw materials used for this study. The study has revealed the potential of producing biocoagulants that can perform as effectively as synthetic/chemical coagulants using locally natural raw materials but the use of it at large scale will only be applicable for batch or semi-batch systems. Some interesting constituents identified in the plants under consideration, such as trialkyl bismuthine and furan derivative, can open up opportunities to elucidate the potential applications of these identified plants in the areas of pharmaceuticals, cosmetics, glass and ceramics, rubber production, and other applicable medicinal advantageous areas.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135938017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Biodegradable Reduced Graphene Oxide/Agar Composites by In Situ Reduction of Graphene Oxide 氧化石墨烯原位还原制备可生物降解的还原性氧化石墨烯/琼脂复合材料

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-07-25 DOI: 10.1155/2023/4583522

Mezigebu Belay

引用次数: 0

Investigation of Chemical Treatments to Enhance the Mechanical Properties of Natural Fiber Composites 化学处理提高天然纤维复合材料力学性能的研究

IF 3.3 4区化学

International Journal of Polymer Science Pub Date : 2023-07-14 DOI: 10.1155/2023/4719481

Farooq Rauf, M. Umair, K. Shaker, Yasir Nawab, Tehseen Ullah, Sheraz Ahmad

{"title":"Investigation of Chemical Treatments to Enhance the Mechanical Properties of Natural Fiber Composites","authors":"Farooq Rauf, M. Umair, K. Shaker, Yasir Nawab, Tehseen Ullah, Sheraz Ahmad","doi":"10.1155/2023/4719481","DOIUrl":"https://doi.org/10.1155/2023/4719481","url":null,"abstract":"A sustainable approach to composites is leading to the use of natural fibers rather than synthetic materials, like carbon or glass, for reinforcement. However, the higher moisture absorption of natural fibers impairs the composite’s mechanical properties. Therefore, to improve the mechanical properties, some chemical treatments like silane and fluorocarbon can be performed to reduce the moisture absorption of natural fibers. In this study, flax was used as reinforcement, and epoxy was used as a matrix. In the first part of the study, flax reinforcement was treated with different concentrations of silane (20, 40, and 60 g/L) and fluorocarbons (80, 100, and 120 g/L). Moisture regains (MRs), absorbency, and tensile strength were measured at reinforcement levels. According to the results, reinforcements treated with 60 g/L silane (S3) and 120 g/L fluorocarbons (F3) exhibited the lowest MR values of 7.09% and 3.06%, respectively, whereas water absorbency was significantly reduced. The sample treated with 120 g/L fluorocarbons required 300 seconds extra time to absorb the water as compared with the untreated sample, whereas samples S3 and F3 showed an increase in tensile strength by 20.16% and 34.80% when compared with untreated reinforcement flax reinforcement. In the second part of the study, untreated and treated flax reinforcements were combined with an epoxy matrix for composite fabrication. MR and mechanical tests (tensile, flexural, and Charpy impact tests) were performed. Results revealed that treated flax-reinforced composites exhibited lower MR values 0.86% for F3 and 0.42% for S3, respectively. The tensile, flexural, and pendulum impact strengths of silane-treated reinforced composite sample C.S3 were increased by 15.07%, 117%, and 20.01%, respectively, compared with untreated reinforced composite samples. Consequently, both chemical treatments improve composite mechanical performance as well as service life.","PeriodicalId":14283,"journal":{"name":"International Journal of Polymer Science","volume":" ","pages":""},"PeriodicalIF":3.3,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46870208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0