Article
Materials Science, Multidisciplinary
Emese Pregi, David Kun, Gabor Faludi, Janos Moczo, Bela Pukanszky
Summary: Flax and lignin were used to prepare hybrid polypropylene composites. The mechanical properties and structures of the composites were characterized using tests and microscopy. Quantitative analysis and modeling were used to study the effects of different components on the properties of the composites.
MATERIALS & DESIGN
(2022)
Review
Polymer Science
Dandan Xu, Sheng He, Weiqi Leng, Yuhe Chen, Zaixing Wu
Summary: Bamboo-fiber-reinforced polymer composites have attracted attention due to their greenness, low cost, and excellent physical properties. They are expected to replace petroleum-based plastics in various fields.
Article
Materials Science, Composites
Muhammad Ayub Asghar, Abdellatif Imad, Yasir Nawab, Muzzamal Hussain, Abdelghani Saouab
Summary: This study compares the mechanical properties of jute/polypropylene composite samples fabricated using different techniques and investigates the impact of singeing on jute yarn. The results show that singeing improves the mechanical properties of jute yarn and commingling yarn simplifies the composite fabrication process and enhances mechanical properties significantly compared to conventional thermoforming technique.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
Hari P. V. S. Prashanth, Elammaran Jayamani, Kok Heng Soon, Yat Choy Wong, Md Rezaur Rahman, Muhammad Khusairy Bin Bakri
Summary: The study investigated the impact of interfacial polarization or the Maxwell-Wagner-Sillars effect on the dielectric properties of polypropylene matrix with the addition of strontium titanate and flax fiber reinforcement. Results showed that dielectric relaxation occurs at low temperatures in the composite materials, while the interfacial relaxation strength significantly increased with the addition of reinforcements.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Polymer Science
M. M. Alamgir Sayeed, Abu Sadat Muhammad Sayem, Julfikar Haider, Sharmin Akter, Md. Mahmudul Habib, Habibur Rahman, Sweety Shahinur
Summary: This study investigates the manufacturing and characterization of polypropylene-based composites reinforced with three different natural fibers: jute, kenaf, and pineapple leaf fiber. The mechanical properties of the composites, such as tensile, flexural, and impact strengths, were significantly improved compared to the pure PP matrix. PALF-PP composites exhibited the best mechanical properties due to the high tensile strength of PALF. The comparison of fractured surfaces of the composites helps researchers select the appropriate natural fiber for fiber-based reinforced composites based on the final product requirement.
Article
Engineering, Chemical
Yarrapragada K. S. S. Rao, Ayaz Ahmad, Sudheer Kumar Battula, Reem Mohammed Alharbi, Neveen Abdel-Raouf, Ibraheem Borie M. Ibraheem, Essam Nageh Sholkamy, B. M. Bala, I. Jenish
Summary: The mechanical characteristics of hybrid polypropylene composites can be improved by adjusting the fiber loading and ratio. Different composites with varying fiber loading were created using hot press technique, and it was found that fiber loading affects tensile strength while fiber ratio influences flexural modulus and hardness.
ADVANCES IN POLYMER TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Xin Zhao, Zhanying Sun, Anxin Tang
Summary: This study investigated the effects of hyperbranched polyamide on the properties of sisal fiber reinforced polypropylene composites. The results showed that hyperbranched polyamide significantly improved the interfacial bonding between fiber and matrix, leading to enhanced mechanical properties. However, the thermal stability of the composites slightly decreased after the addition of hyperbranched polyamide.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Polymer Science
Yunpeng Ye, Dongfang Zou, Shuang Si, Xingong Li
Summary: Reed charcoal/polypropylene (RC/PP) composites were prepared by melt-blending and molding processes. The addition of appropriate amounts of RC improved the rigidity and thermal stability of these composites.
Article
Materials Science, Composites
Xiangrui Li, Mengyao Han, Mingli Liu, Lei Le, Lipeng Meng, Yu Lin, Jiaming Yu, Lingyu Meng, Chunfeng Li
Summary: The study investigates the influence of micron-sized diatomite dosage on the physical, mechanical, rheological, and creep properties of poplar wood/polypropylene (PW/PP) composites. The addition of diatomite enhances the density, improves the toughness, impact strength, tensile strength, and elongation at break of the composites. The diatomite also improves the processability and creep resistance of the composite system.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Jorge I. Fajardo, Josep Costa, Luis J. Cruz, Cesar A. Paltan, Jonnathan D. Santos
Summary: In this study, a new integral micromechanical model was applied to simulate the one-dimensional tensile behavior of Guadua angustifolia Kunth fibre/polypropylene composites. By integrating experimental data and information about fiber bundles morphology, the stress-strain curves of the composite were successfully predicted and showed good agreement with experimental results.
Review
Polymer Science
Siti Nadia Mohd Bakhori, Mohamad Zaki Hassan, Noremylia Mohd Bakhori, Khairur Rijal Jamaludin, Faizir Ramlie, Mohd Yusof Md Daud, Sa'ardin Abdul Aziz
Summary: This article reviews the interply hybridization of natural and synthetic fibers into composites. It discusses the classification of natural fibers and the physical and mechanical properties of these hybrid composites, including tensile, flexural, impact, and perforation resistance. Furthermore, it describes in detail the applications and future directions of hybrid composites.
Article
Materials Science, Textiles
Hongming Wu, Dinghong Xu, Ying Zhou, Jianbing Guo, Weidi He, Yong He, Yuan Yi, Shuhao Qin
Summary: In this study, hemp fibers-reinforced polypropylene composite was enhanced and toughened through chemical treatment in a melt-blending process. Various treatments on hemp fibers were conducted, with dodecyl bromide treatment showing the most significant improvement in mechanical properties and thermal stability. A possible reinforcing mechanism involving the reaction between hemp fibers and dodecyl bromide was proposed.
FIBERS AND POLYMERS
(2021)
Article
Materials Science, Composites
Manish Kumar Lila, Ujendra Kumar Komal, Inderdeep Singh
Summary: The thermal post-processing significantly enhances the mechanical and crystalline properties of both neat polypropylene and composite specimens. However, the increment decreases with an increase in fiber reinforcement and processing time, likely due to the poor thermal conductivity of natural fibers. Improved interfacial adhesion between fibers and matrix after exposure to elevated temperatures was confirmed by scanning electron microscopy.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Zhenhua Wang, Weili Feng, Jiachen Ban, Zheng Yang, Xiaomin Fang, Tao Ding, Baoying Liu, Junwei Zhao
Summary: In this study, sisal-fiber-reinforced polypropylene (PP/SF) flame-retardant composites were prepared using the two-step melt blending method. An intumescent flame retardant (IFR) composed of silane-coated ammonium polyphosphate (Si-APP) and pentaerythritol (PER) was used. The PP/SF composite prepared by PP/SF secondary blending with IFR showed excellent flame-retardant performance, with a limited oxygen index of about 28.3% and passing the UL-94 V-0 rating (3.2 mm) in the vertical combustion test. The mechanical properties of the composites prepared using three different mixing processes were similar.
Article
Thermodynamics
Yanli Dou, Xuefei Li, Kaiyue Zheng, Jiawen Liu, Jiazi Hou
Summary: The UV-curing flame-retardant coating with varying mass content of BAEA, PM-2 and PUA successfully improved the flame-retardant and mechanical properties of jute/polypropylene composites. The coatings showed good adhesion and effectively enhanced the flame retardancy and mechanical properties of the composites, expanding their application potential.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)