scholarly journals Advances in Halloysite Nanotubes–Polysaccharide Nanocomposite Preparation and Applications

Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 987 ◽  
Author(s):  
Yang Wu ◽  
Yongzhi Zhang ◽  
Junping Ju ◽  
Hao Yan ◽  
Xiaoyu Huang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Aspect Ratio ◽  
Mechanical Strength ◽  
Recent Progress ◽  
Halloysite Nanotubes ◽  
Large Aspect Ratio ◽  
Swelling Properties ◽  
High Mechanical Strength ◽  
Practical Applications ◽  
Treatment Application

Halloysite nanotubes (HNTs), novel 1D natural materials with a unique tubular nanostructure, large aspect ratio, biocompatibility, and high mechanical strength, are promising nanofillers to improve the properties of polymers. In this review, we summarize the recent progress toward the development of polysaccharide-HNTs composites, paying attention to the main existence forms and wastewater treatment application particularly. The purification of HNTs and fabrication of the composites are discussed first. Polysaccharides, such as alginate, chitosan, starch, and cellulose, reinforced with HNTs show improved mechanical, thermal, and swelling properties. Finally, we summarize the unique characteristics of polysaccharide-HNTs composites and review the recent development of the practical applications.

scholarly journals Physical and Mechanical Properties of Non-Stoichiometric Cordierite with Treated FGD Sludge Addition Sintered at 1250°C

2021 ◽  
Vol 2129 (1) ◽  
pp. 012091
Author(s):  
Fatin Fatini Othman ◽  
Banjuraizah Johar ◽  
Shing Fhan Khor ◽  
Nik Akmar Rejab ◽  
Suffi Irni Alias
Keyword(s):  
Mechanical Strength ◽  
Physical And Mechanical Properties ◽  
Xrd Analysis ◽  
Solid State Reaction Method ◽  
X Ray Diffraction ◽  
High Mechanical Strength ◽  
Practical Applications ◽  
Porous Formation ◽  
Sludge Waste ◽  
Cordierite Ceramics

Abstract The effects of addition treated FGD sludge in non-stoichiometric cordierite, by benefiting from its high mechanical strength and good thermal performance, can hold promise for more practical applications of non-stoichiometric cordierite. Treated FGD sludge waste from borosilicate glass industrial were used as a flux to reduce the sintering temperature of cordierite. Cordierite ceramics were prepared using silica (SiO2), alumina (Al2O3), talc, kaolin, magnesia (MgO) and treated FGD sludge via solid-state reaction method. The cordierite were prepared by adjusting the ratio of FGD sludge and magnesia in the cordierite composition, respectively. 4 composition of cordierite with 0%, 1.5%, 3.0% and 4.5% of FGD sludge were prepared to obtain the formation of α-cordierite that can be determine by X-ray diffraction (XRD) analysis. Porosity, density, shrinkage and flexural strength for each of cordierite composition were determined to obtain the best composition of treated FGD sludge required for sintering aids of cordierite. Only FGD 3.0% able to synthesis pure α-cordierite while FGD 1.5 % shows an improvement in both porosity and density. The increasing amount of treated FGD sludge lead to decreasing in mechanical strength of cordierite ceramic due to porous formation.

Review on recent progress in chitosan-based hydrogels for wastewater treatment application

2018 ◽  
Vol 201 ◽  
pp. 264-279 ◽  
Author(s):  
Parisa Mohammadzadeh Pakdel ◽  
Seyed Jamaleddin Peighambardoust
Keyword(s):  
Wastewater Treatment ◽  
Recent Progress ◽  
Treatment Application

Fabrication of tough epoxy with shape memory effects by UV-assisted direct-ink write printing

Soft Matter ◽  
2018 ◽  
Vol 14 (10) ◽  
pp. 1879-1886 ◽  
Author(s):  
Kaijuan Chen ◽  
Xiao Kuang ◽  
Vincent Li ◽  
Guozheng Kang ◽  
H. Jerry Qi
Keyword(s):  
Thermal Stability ◽  
3D Printing ◽  
Mechanical Strength ◽  
Shape Memory ◽  
Chemical Resistance ◽  
Shape Memory Polymers ◽  
Excellent Thermal Stability ◽  
High Mechanical Strength ◽  
Practical Applications ◽  
Shape Memory Effects

3D printing of epoxy-based shape memory polymers with high mechanical strength, excellent thermal stability and chemical resistance is highly desirable for practical applications.

scholarly journals Recent Advances in Applications of Carbon Nanotubes for Desalination: A Review

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1203 ◽  
Author(s):  
Ruiqian Wang ◽  
Dinghao Chen ◽  
Qi Wang ◽  
Yibin Ying ◽  
Weilu Gao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Mechanical Strength ◽  
Efficient Method ◽  
High Aspect Ratio ◽  
Energy Efficient ◽  
Cost Effective ◽  
Water Desalination ◽  
High Mechanical Strength ◽  
Vertically Aligned

As a sustainable, cost-effective and energy-efficient method, membranes are becoming a progressively vital technique to solve the problem of the scarcity of freshwater resources. With these critical advantages, carbon nanotubes (CNTs) have great potential for membrane desalination given their high aspect ratio, large surface area, high mechanical strength and chemical robustness. In recent years, the CNT membrane field has progressed enormously with applications in water desalination. The latest theoretical and experimental developments on the desalination of CNT membranes, including vertically aligned CNT (VACNT) membranes, composited CNT membranes, and their applications are timely and comprehensively reviewed in this manuscript. The mechanisms and effects of CNT membranes used in water desalination where they offer the advantages are also examined. Finally, a summary and outlook are further put forward on the scientific opportunities and major technological challenges in this field.

DMV 59

Alloy Digest ◽  
2009 ◽  
Vol 58 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Mechanical Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Mechanical Strength ◽  
Temperature Performance

Abstract DMV 59 is the material of choice for a wide variety of applications where significant corrosion resistance and high mechanical strength is necessary. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-672. Producer or source: Mannesmann DMV Stainless USA Inc.

BOFORS 2RM2

Alloy Digest ◽  
1965 ◽  
Vol 14 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Low Temperature ◽  
Mechanical Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Cast Steel ◽  
Heat Treating ◽  
High Mechanical Strength ◽  
Temperature Performance

Abstract BOFORS 2RM2 is a hardenable stainless cast steel having good weldability, high mechanical strength and improved corrosion resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: SS-169. Producer or source: Aktiebolaget Bofors.

scholarly journals Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3574
Author(s):  
Pejman Heidarian ◽  
Hossein Yousefi ◽  
Akif Kaynak ◽  
Mariana Paulino ◽  
Saleh Gharaie ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Strain Sensors ◽  
Self Healing ◽  
Nano Materials ◽  
Strain Sensing ◽  
Ferric Ions ◽  
Research Activity ◽  
Adhesion Properties ◽  
High Mechanical Strength ◽  
The Moment

Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties and high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist of static bonds for mechanical strength and dynamic bonds for SELF performance, presenting a challenge to improve both properties into one single hydrogel. An alternative strategy to successfully incorporate both properties into one system is via the use of stiff or rigid, yet dynamic nano-materials. In this work, a nano-hybrid modifier derived from nano-chitin coated with ferric ions and tannic acid (TA/Fe@ChNFs) is blended into a starch/polyvinyl alcohol/polyacrylic acid (St/PVA/PAA) hydrogel. It is hypothesized that the TA/Fe@ChNFs nanohybrid imparts both mechanical strength and stimuli-free SELF properties to the hydrogel via dynamic catecholato-metal coordination bonds. Additionally, the catechol groups of TA provide mussel-inspired adhesion properties to the hydrogel. Due to its electroconductivity, toughness, stimuli-free SELF properties, and self-adhesiveness, a prototype soft wearable strain sensor is created using this hydrogel and subsequently tested.

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