Results 71 to 80 of about 28,551 (308)

One‐Step Preparation of Lanthanide‐Doped Polyurea Multicolor Microspheres for Versatile Fluorescent Applications

Advanced Science, EarlyView.
Lanthanide‐doped polyurea microspheres are prepared via a facile one‐step precipitation polymerization. They exhibit strong hydrogen‐bonding and coordination interactions with excellent properties, including multicolor emission, high quantum yield (75.3%), remarkable stability, redispersibility, and biocompatibility.
Guiyu Zhang, Xiaoxia Yu, Xinhui Wang, Xiang Zheng Kong, Xiangling Gu, Jitao Liu, Shusheng Li, Xiaoli Zhu, Lianbao Cao, Xubao Jiang   +9 more
wiley   +1 more source

Single Polymer Composites Based on Polypropylene: Processing and Properties

, 2004
PhDIsotropic polymers lack sufficient strength and stiffness for many engineering applications. In order to improve these properties polymers can be filled with structural reinforcements such as glass or natural fibres.
Alcock, Benjamin
core  

Recycling of sisal fiber reinforced polypropylene and polylactic acid composites: Thermo-mechanical properties, morphology, and water absorption behavior

, 2019
The effect of recycling on the thermo-mechanical and water absorption behavior of polypropylene (PP)/sisal fiber and polylactic acid (PLA)/sisal fiber composites were studied.
Rangappa, Sanjay Mavinkere, Siengchin, Suchart, Dangtungee, Rapeephun, Ngaowthong, Chakaphan, Švec, Martin, Borůvka, Martin, Běhálek, Luboš, Parameswaranpillai, Jyotishkumar, Lenfeld, Petr   +8 more
core   +1 more source

Self-Healing Potential and Post-Cracking Tensile Behavior of Polypropylene Fiber-Reinforced Cementitious Composites

, 2021
The use of synthetic fibers as reinforcement in fiber-reinforced cementitious composites (FRCC) demonstrates a combination of better ductile response vis-à-vis metallic ones, enhanced durability in a high pH environment, and resistance to corrosion as ...
Pejman Azarsa, Mohit Garg, Rishi Gupta
core   +1 more source

Finite Element Analysis of Steel-Polypropylene Hybrid Fiber Concrete Penstock

Renmin Zhujiang, 2020
In order to improve the bearing capacity of steel-lined reinforced concrete penstock and ensure the safety and durability of the penstock, it is planned to mix hybrid fibers into the wrapped concrete of penstock for crack control.
HE Shan, WU Hailin, SI Dongdong
doaj  

Investigation Some of Physical and Mechanical Properties of Polypropylene Fiber/ Wood /Cement Composites [PDF]

Iranian Journal of Wood and Paper Industries, 2016
In this study, some of the physical and mechanical properties of polypropylene fiber/ wood fiber/ cement composites were investigated. For this aim, three levels of polypropylene fiber, namely 2 wt.%, 3 wt.% and 4 wt.% were mixed with 15 wt.% of wood ...
hamed Younesi-Kordkheili, reza naghdi, abbas Honarbakhsh Raouf   +2 more
doaj  

Flexural strength of hydrogen plasma-treated polypropylene fiber-reinforced polymethyl methacrylate denture base material

The Journal of Indian Prosthodontic Society, 2018
Objectives: The present study aimed to evaluate flexural strength of hydrogen plasma-treated polypropylene fibers-reinforced polymethyl methacrylate (PMMA) polymer composite.
Merin Mathew, Kamalakanth Shenoy, K S Ravishankar   +2 more
doaj   +1 more source

Efficient Concentration and Complete Destruction of Short‐Chain and Emerging PFAS in Contaminated Water via Integrated Interface Engineering‐Enhanced Carbon Felt Sorption and Photochemical Processes

Advanced Science, EarlyView.
A closed‐loop “Concentrate‐Destroy” strategy is presented for completely eliminating short‐chain and emerging PFAS, in which the new 3D PPy@P‐CF is used for efficiently concentrating PFAS and Cu2+‐mediated photodegradation is applied for the completely destroying PFAS in the sorbent regeneration eluent.
Hao Yu, Jialei Guo, Peng Zhang, Hongyi Li, Feng He, Hongwen Sun   +5 more
wiley   +1 more source

Engineering Interfaces toward High-Performance Polypropylene/Coir Fiber Biocomposites with Enhanced Friction and Wear Behavior

, 2019
High-performance natural plant fibers reinforced polymer biocomposites with excellent friction and wear properties hold significant practical applications in industry.
Yu, Youming, Nie, Yujing, Fu, Shenyuan, Song, Pingan, Wang, Zhenyu, Liu, Lina, Wang, Hao   +6 more
core   +1 more source

Use of polypropylene fiber and silica fume modified concrete as a repair material

MATEC Web of Conferences, 2018
Polypropylene fiber and silica fume were used to get high impermeability and cracking resistance concrete as a repair material. Results showed just incorporating fiber (without silica fume) had no obvious improvement on strength and impermeability of ...
Liu Jing, Liu Wen, Guan Shugang, Guo Chao, Zheng and Xinguo   +4 more
doaj   +1 more source