Journal of Applied Polymer Science最新文献_第8页

The Preparation and Performance of Dual-Resin-Based Composite Superhydrophobic Coatings 双树脂基复合超疏水涂料的制备及性能研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-08-30 DOI: 10.1002/app.71393

Tao Li, Xinmeng Wu, Shunuo Bian, Jiaming Liu, Haiwei Han, Yong Wang, Lihua Yu, Junhua Xu, Chaofeng Liang

{"title":"The Preparation and Performance of Dual-Resin-Based Composite Superhydrophobic Coatings","authors":"Tao Li, Xinmeng Wu, Shunuo Bian, Jiaming Liu, Haiwei Han, Yong Wang, Lihua Yu, Junhua Xu, Chaofeng Liang","doi":"10.1002/app.71393","DOIUrl":"https://doi.org/10.1002/app.71393","url":null,"abstract":"<div>\u0000 \u0000 A functionally complementary dual-resin strategy was developed to regulate wettability and mechanical durability in superhydrophobic coatings. High-impact polystyrene (HIPS) and organic silicone resin (OSR) formed the composite matrix, and coatings with different HIPS/OSR ratios were fabricated by one-step spraying at a constant fluorinated nano-SiO2 loading. SEM/EDS, surface roughness, and XPS analyses indicated that increasing the OSR proportion reduced smooth HIPS-rich domains, promoted continuous OSR/fluorinated-silica-rich micro-nanostructures, and increased surface fluorine exposure, thereby increasing the water contact angle and decreasing the sliding angle. Mechanical tests revealed a composition-dependent trade-off: HIPS-rich coatings showed smaller contact-angle losses, whereas OSR-rich coatings better retained low sliding angles after damage. The 1:2 HIPS/OSR coating achieved the highest initial water repellency (158.85° contact angle; 5.55° sliding angle), remained stable after acidic and alkaline immersion, delayed complete freezing to 1260 s at −15°C, exhibited effective self-cleaning, and maintained approximately 96% oil–water separation efficiency over 5 cycles. These results establish a composition–structure–surface chemistry–performance relationship and identify resin composition as a practical design variable for balancing water repellency and mechanical durability.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High-Performance CNT-Reinforced Ion-Exchange Resins for the Hydration of Ethylene Oxide 用于环氧乙烷水化的高性能碳纳米管增强离子交换树脂

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-09-04 DOI: 10.1002/app.71374

Fengping Yu, Junwei Ge, Ming Jin, Jiahua Wang, Yi Wang, Yuanxin Wang, Wenjun He

{"title":"High-Performance CNT-Reinforced Ion-Exchange Resins for the Hydration of Ethylene Oxide","authors":"Fengping Yu, Junwei Ge, Ming Jin, Jiahua Wang, Yi Wang, Yuanxin Wang, Wenjun He","doi":"10.1002/app.71374","DOIUrl":"https://doi.org/10.1002/app.71374","url":null,"abstract":"<div>\u0000 \u0000 The catalytic hydration of ethylene oxide (EO) to monoethylene glycol (MEG) is an industrially important process, but conventional ion-exchange resin (IER) catalysts suffer from limited thermal stability and undesirable swelling. In this study, multiwalled carbon nanotubes (CNTs) are incorporated into a pyrrolidinium-functionalized styrene-divinylbenzene resin via in situ suspension polymerization to address these challenges. Comprehensive characterization confirms the effective CNT dispersion and strong interactions with the polymer matrix. The resulting CNT-reinforced IER exhibits improved thermal stability, enhanced anti-swelling capacity, and a notably lower exchange capacity loss compared with conventional IERs. In a fixed-bed reactor for EO hydration, the bicarbonate-form of CNT-reinforced IER catalyst achieves over 97% EO conversion and 98% MEG selectivity under optimized conditions (90°C, 2.25 h−1 and a water-to-EO molar ratio of 11.20) and maintains stable performance over 2500 h. These results demonstrate that CNT reinforcement, combined with the pyrrolidinium functionality, provides a durable and highly selective catalyst for industrial EO hydration.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancing Impact Strength and Compatibility in Epoxy/EVA Blends: Effects of EVA Functionality and Compatibilizers on Phase Behavior, Mechanical Properties, and Thermal Properties 增强环氧树脂/EVA共混物的冲击强度和相容性：EVA功能性和增容剂对相行为、机械性能和热性能的影响

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-09-17 DOI: 10.1002/app.71364

Masoud Khoshnood, Ghodratollah Hashemi Motlagh

{"title":"Enhancing Impact Strength and Compatibility in Epoxy/EVA Blends: Effects of EVA Functionality and Compatibilizers on Phase Behavior, Mechanical Properties, and Thermal Properties","authors":"Masoud Khoshnood, Ghodratollah Hashemi Motlagh","doi":"10.1002/app.71364","DOIUrl":"https://doi.org/10.1002/app.71364","url":null,"abstract":"<div>\u0000 \u0000 This research focuses on toughening epoxy (EP) resins by blending with ethylene vinyl acetate (EVA) copolymer, addressing their inherent immiscibility through chemical modification. EVA was partially hydrolyzed (hEVA) to introduce hydroxyl groups and subsequently grafted with (3-glycidyloxypropyl) trimethoxysilane (GPTMS) to create silane-functionalized derivatives (gEVA and hgEVA). Materials included Diglycidyl ether of bisphenol A (DGEBA) epoxy, Jeffamine D230 curing agent, neopentyl glycol diglycidyl ether (NGDE) reactive diluent, Decylamine (DA) co-curing agent, and EVA (19% vinyl acetate). Blends were prepared via melt-mixing at 150°C, followed by co-curing. Characterization methods such as scanning electron microscopy (SEM), optical microscopy, and Fourier transform infrared (FTIR) were employed to analyze morphology, phase behavior, and chemical interactions. SEM revealed finer dispersions with modified EVAs, indicating enhanced interfacial adhesion. FTIR confirmed successful modifications and suggested new bond formations between EP and modified EVA. The study systematically investigated EP/EVA blends at varying compositions (2–10 wt% EVA, 5 wt% modified EVA) and characterized their thermal properties and mechanical performance (tensile testing). Notably, the EP/hgEVA blend demonstrated a significant increase in impact strength (~100%) while largely retaining EP's flexural and tensile strength, highlighting the effectiveness of the compatibilization strategy for advanced coating applications.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Sustainable Biomass-Caffeic Acid Hybrid Adhesives via Dynamic Covalent and Metal–Ligand Coordination Networks 通过动态共价和金属配体配位网络的可持续生物质-咖啡酸杂化粘合剂

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-08-25 DOI: 10.1002/app.71397

Liutao Hou, Haoyu Li, Jianwei Guo, Xupeng Liang, Yanyan Guo, Chun Chang

{"title":"Sustainable Biomass-Caffeic Acid Hybrid Adhesives via Dynamic Covalent and Metal–Ligand Coordination Networks","authors":"Liutao Hou, Haoyu Li, Jianwei Guo, Xupeng Liang, Yanyan Guo, Chun Chang","doi":"10.1002/app.71397","DOIUrl":"https://doi.org/10.1002/app.71397","url":null,"abstract":"<div>\u0000 \u0000 Adhesives are crucial for bonding diverse substrates in electronics, aerospace, and precision manufacturing, but traditional ones suffer from insufficient durability, poor low-temperature performance, and limited environmental adaptability. This study develops a high-performance supramolecular adhesive (poly(Cu-BTC-CA)) via a stepwise polymerization strategy: Cu-BTC (MOF) is synthesized first, then functionalized with caffeic acid (CA) to form a dual cross-linked porous network. FT-IR confirms coordination/polymerization interactions. Poly(Cu-BTC-CA) shows robust adhesion to diverse substrates, including stainless steel, copper, aluminum, and glass. More remarkably, this MOF-based adhesive exhibits a distinctive low-temperature reinforcement effect, with its adhesion strength on stainless steel increasing to 6.2 MPa at −80°C—a counterintuitive enhancement rather than the usual decline. It also retains effective bonding after exposure to liquid nitrogen (−196°C), with partial recovery upon warming to room temperature. In addition, the adhesive demonstrates outstanding macroscopic load-bearing performance: a mere 62.5 mg of material over a 625 mm2 overlap area can stably support a 30 kg load without interfacial debonding. This work provides a novel design for adhesives with excellent strength, wide temperature adaptability, and great potential for extreme-environment applications.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High-Resilience Epoxy Elastomer: Dynamic Ester Bonds Enable Reprocessing and Chemical Degradability 高弹性环氧弹性体：动态酯键使再加工和化学降解

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-08-23 DOI: 10.1002/app.71398

Caixia Zhao, Tian Fu, Xinyu Wu, Huici Han, Yan Lv, Guoxiang Zou

{"title":"High-Resilience Epoxy Elastomer: Dynamic Ester Bonds Enable Reprocessing and Chemical Degradability","authors":"Caixia Zhao, Tian Fu, Xinyu Wu, Huici Han, Yan Lv, Guoxiang Zou","doi":"10.1002/app.71398","DOIUrl":"https://doi.org/10.1002/app.71398","url":null,"abstract":"<div>\u0000 \u0000 Dynamic covalent polymer networks represent new opportunities in the design of sustainable epoxy resins due to their excellent reprocessability. However, these vitrimers typically exhibit mechanical brittleness and poor resilience performance, limiting their applications in sealing, vibration damping, and impact resistance. E44/poly(2-methyl-1,3-propanediol adipate)/glutaric acid (E44/PMPA/GA) epoxy elastomers, with high resilience, reprocessability, and chemical degradability, were synthesized through epoxy-carboxylic acid opening-ring reactions. The E44/PMPA2/GA8 vitrimers exhibited the highest cross-linking density (226.3 mol/m3), a Tg of 22.8°C (from DMA), and high thermal stability (Ti: 337°C). Owing to flexible chains and a moderate cross-linking density, the E44/PMPA10 exhibited superior resilience (residual strain 5.6% after five tensile cycles). Meanwhile, the dynamic ester bonds within the networks endowed the E44/PMPA/GA with self-healing ability and recyclability. In addition, the vitrimers were completely chemically degradable. By regulating the synergistic effects of flexible chain segments and dynamic bonds, this work provided a promising and feasible route for the preparation of epoxy elastomers that integrate high resilience, reprocessability, and chemical degradability.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Improving Durability of Silicone Rubber Dielectric Elastomer Composite by Constructing Covalent-Bonds Between the Surface-Modified Silica and Matrix 通过构建表面改性二氧化硅与基体之间的共价键提高硅橡胶介电弹性体复合材料的耐久性

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-10-01 Epub Date: 2026-08-23 DOI: 10.1002/app.71400

Kexin Bo, Huiying Li, Yuhong Ma, Wei Zou, Hong Wang, Like Sun, Chen Zhang

{"title":"Improving Durability of Silicone Rubber Dielectric Elastomer Composite by Constructing Covalent-Bonds Between the Surface-Modified Silica and Matrix","authors":"Kexin Bo, Huiying Li, Yuhong Ma, Wei Zou, Hong Wang, Like Sun, Chen Zhang","doi":"10.1002/app.71400","DOIUrl":"https://doi.org/10.1002/app.71400","url":null,"abstract":"<div>\u0000 \u0000 The inherent viscoelastic behaviors of dielectric elastomers (DEs), such as creep and hysteresis, are important for their long-term service stability and energy efficiency in cyclic applications. In this work, a constrained interface between dielectric filler and silicone rubber matrix was constructed by modifying nano-silica surface with vinylmethyl dimethoxysilane (VMDMS). By the co-crosslinking reaction among the vinyl groups of modified nano-silica and polymethylvinylsiloxane (PMVS) matrix, the polymer chain mobility was restricted and the filler dispersion was improved. The as-obtained VMDMS@SiO2/PMVS nanocomposites exhibited remarkably enhanced compressive creep as low as 0.25%, which was 86% lower than that of SiO2/PMVS nanocomposite. Furthermore, the constrained interface also provided excellent dielectric stability after creep and minimized hysteresis loss during cyclic loading. This study presents an effective interfacial design strategy for developing durable and reliable DEs with suppressed viscoelasticity, which has the potential for applications in soft robotics and energy harvesting.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 42","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A Review of Recent Progress in the Modeling Methods of Electromechanical and Mechanical-Stimuli-Responsive Polymer Metastructures 机电和机械刺激响应聚合物元结构建模方法研究进展综述

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-10 DOI: 10.1002/app.71350

Christian Brosseau

引用次数: 0

Study on Curing Kinetics and Viscosity Modeling of High-Performance Bismaleimide Resin 高性能双马来酰亚胺树脂固化动力学及粘度模型研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-13 DOI: 10.1002/app.71348

Xueqin Yang, Wei Yue, Jie Sun, Yaodong Liu, Wenjian Zheng, Jintang Zhou, Tengteng Li, Yamei Wang

{"title":"Study on Curing Kinetics and Viscosity Modeling of High-Performance Bismaleimide Resin","authors":"Xueqin Yang, Wei Yue, Jie Sun, Yaodong Liu, Wenjian Zheng, Jintang Zhou, Tengteng Li, Yamei Wang","doi":"10.1002/app.71348","DOIUrl":"https://doi.org/10.1002/app.71348","url":null,"abstract":"<div>\u0000 \u0000 Bismaleimide (BMI) resin is widely used in high-performance composites, and its curing and rheological behavior are crucial for process design. In this study, a three-component BMI resin composed of diphenylmethane-type bismaleimide resin, T-type bismaleimide resin, and diallylbisphenol A was investigated by differential scanning calorimetry (DSC) and rotational rheometry. Non-isothermal DSC results showed that the exothermic peak shifted to higher temperatures with increasing heating rate, and the characteristic curing temperatures obtained by T–β extrapolation were Ti = 174.31°C, Tp = 210.44°C, and Tf = 252.54°C. The average apparent activation energy calculated within the conversion range of 0.2 ≤ α ≤ 0.8 was 78.36 kJ/mol. Based on Málek analysis, the curing reaction followed an autocatalytic kinetic model, with average kinetic parameters of m = 0.234, n = 1.029, and A = 3.59 × 105. The viscosity evolution was well described by the Double Arrhenius viscosity model, with key model parameters of k1 = 1.341 × 10−6, k2 = 4538.4, k3 = 1.509 × 104, and k4 = −5682.3, showing good agreement between the predicted and experimental results. These established models provide guidance for optimizing BMI curing schedule design, resin infusion temperature selection, and injection time window.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 and Sustained Drug Release Study of Interpenetrating Network PNIPAm/SA(Ca2+) Hydrogels 互穿网络PNIPAm/SA（Ca2+）水凝胶的制备及缓释研究

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-12 DOI: 10.1002/app.71339

Jiaxin Liu, Yuhua Gao, Zhice Xu, Haihua Li, Lihui Zhang, Zhenfa Liu

{"title":"Preparation and Sustained Drug Release Study of Interpenetrating Network PNIPAm/SA(Ca2+) Hydrogels","authors":"Jiaxin Liu, Yuhua Gao, Zhice Xu, Haihua Li, Lihui Zhang, Zhenfa Liu","doi":"10.1002/app.71339","DOIUrl":"https://doi.org/10.1002/app.71339","url":null,"abstract":"<div>\u0000 \u0000 A polyaspartic acid derivative was synthesized as a crosslinking agent (AEA-PSI), and its structure was analyzed using proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FTIR). A temperature- and pH-responsive hydrogel based on sodium alginate (SA) and N-isopropylacrylamide (NIPAm) was synthesized and characterized by FTIR, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and mercury intrusion porosimetry (MIP) to confirm its structure and thermal stability. The formulation was systematically optimized by varying SA content, NIPAm concentration, and crosslinker dosage, yielding hydrogels with tunable swelling capacity and network structure. Incorporating AEA-PSI refined the three-dimensional network without compromising its temperature- and pH-responsive behavior. This tailored structure facilitated sustained drug release: the optimized hydrogel exhibited significantly higher 5-fluorouracil (5-FU) release in simulated intestinal fluid (SIF, pH = 7.4, 90.19%) compared to simulated gastric fluid (SGF, pH = 1.2), with release kinetics following the Ritger–Peppas model. Furthermore, the hydrogel demonstrated superior biodegradability in intestinal fluid and lysozyme solution, a functional advantage rarely achieved in conventional alginate-based hydrogels. This work presents a successful valorization of natural and synthetic polymers into a tunable and biocompatible drug-delivery platform, achieving a synergistic combination of responsiveness, sustained release, and biodegradability for the treatment of small intestine–related diseases.\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Wood Sawdust as a Low-Cost Filler in Whole-Tire Reclaimed Rubber: Mechanical Characterization and Factory-Scale Cost Analysis 木屑作为全轮胎再生橡胶的低成本填料：力学特性和工厂规模成本分析

IF 3.1 3区化学

Journal of Applied Polymer Science Pub Date : 2026-09-21 Epub Date: 2026-08-05 DOI: 10.1002/app.71334

Mohammed S. Matar, Faris Tarlochan, Sami E. Alkhatib, Abdullah Abdelhamid

{"title":"Wood Sawdust as a Low-Cost Filler in Whole-Tire Reclaimed Rubber: Mechanical Characterization and Factory-Scale Cost Analysis","authors":"Mohammed S. Matar, Faris Tarlochan, Sami E. Alkhatib, Abdullah Abdelhamid","doi":"10.1002/app.71334","DOIUrl":"https://doi.org/10.1002/app.71334","url":null,"abstract":"End-of-life tire waste presents a serious disposal problem, and reclaimed rubber (RR) recovered from whole truck tires offers a practical recovery route. However, RR has lower mechanical performance than virgin rubber, and low-cost fillers that maintain acceptable properties are needed. This study examines wood sawdust, obtained free of charge as a carpentry by-product, as a particulate filler in whole-tire RR at 0 to 20 wt%. Composites were manufactured under factory conditions and tested for tensile strength, elongation at break, Shore A hardness, Mooney viscosity, and seven-day water absorption. At 5 wt% sawdust, tensile strength was 4.4 MPa and elongation at break was 148.7%, both within published industrial acceptance limits. Shore A hardness reached 63.5 and Mooney viscosity rose by less than 4%, with no practical processing consequence. Water absorption was 8%, compatible with indoor and semi-exposed applications. All five properties remain within specification at 1 to 5 wt%. A factory-scale cost analysis shows that 5 wt% substitution reduces annual production cost by approximately 62,000 USD with no capital investment required.","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"143 41","pages":""},"PeriodicalIF":3.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/app.71334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0