Modification of PP by Using Recycled Materials

2013 ◽  
Vol 364 ◽  
pp. 716-720 ◽  
Author(s):  
An Xie ◽  
Huan Lin Jin ◽  
Ming Zhang
Keyword(s):  
Mechanical Property ◽  
Ternary System ◽  
General Purpose ◽  
Good Mechanical Property ◽  
Recycled Materials ◽  
Rubber Powder ◽  
Chemical Attack ◽  
Materials Used ◽  
Integrated Performance

As a kind of general-purpose plastic, PP possesses a good mechanical property and excellent resistance to chemical attack. So, now, it is widely used. In this article, a kind of decorating materials used in automobile and rubber powders were used to undertake a modification of PP. Besides, mechanical property was tested and SEM,TMA,TG technology were used to investigate some of the property of composites. We drew a conclusion that the composite with a ternary system consists of PP,POE and rubber powder got the best integrated performance.

Self-healing poly(siloxane-urethane) elastomers with remoldability, shape memory and biocompatibility

2016 ◽  
Vol 7 (47) ◽  
pp. 7278-7286 ◽  
Author(s):  
Jian Zhao ◽  
Rui Xu ◽  
Gaoxing Luo ◽  
Jun Wu ◽  
Hesheng Xia
Keyword(s):  
Mechanical Property ◽  
Shape Memory ◽  
Microphase Separation ◽  
Diels Alder ◽  
Good Mechanical Property ◽  
Self Healing ◽  
Healing Efficiency ◽  
Good Biocompatibility

The poly(siloxane-urethane) elastomers with microphase separation structure and Diels–Alder bonds show high healing efficiency, good mechanical property and good biocompatibility.

Mussel-inspired adhesive gelatin–polyacrylamide hydrogel wound dressing loaded with tetracycline hydrochloride to enhance complete skin regeneration

Soft Matter ◽  
2022 ◽  
Author(s):  
Yamei Wang ◽  
Dongdong Xiao ◽  
Lin Quan ◽  
Hongbin Chai ◽  
Xiaofeng Sui ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Wound Dressing ◽  
Antibacterial Property ◽  
Wound Care ◽  
Skin Regeneration ◽  
Tetracycline Hydrochloride ◽  
Market Size ◽  
Good Mechanical Property ◽  
Polyacrylamide Hydrogel

Even though the global wound care market size was valued at USD 19.83 billion in 2020, it is still a challenge to develop a hydrogel-based wound dressing with a good mechanical property, adhesiveness and antibacterial property.

Rethinking Waste Through Design

2021 ◽  
pp. 449-459
Author(s):  
Caroline O'Donnell ◽  
Dillon Pranger
Keyword(s):  
Case Studies ◽  
Construction Industry ◽  
Recycled Materials ◽  
Sustainable Practices ◽  
The Us ◽  
Materials Used ◽  
Made In

This chapter will study the proliferation of architectural follies that use recycled or recyclable materials in a move to promote better practices in waste and recycling. Given the slow uptake of this impetus in the architectural world proper, the text will investigate the obstacles in engaging in materially sustainable practices in the construction industry as well as case studies for rethinking currently problematic materials. However, while some improvements have been made in the construction industry's use of recycled materials, the industry often dismisses the afterlife of materials used throughout the process. What are the motivations of the industry and how can we incentivize circular thinking in an industry that produces hundreds of millions of tons of waste per year in the US?

Design and Construction Analysis of Cement-Stabilized Macadam Foundation

2013 ◽  
Vol 340 ◽  
pp. 80-84
Author(s):  
Deng Lin
Keyword(s):  
Mechanical Property ◽  
Frost Resistance ◽  
Water Stability ◽  
Good Mechanical Property ◽  
Control Methods ◽  
Mechanical Theory ◽  
Cement Stabilization ◽  
Base Course ◽  
Pavement Base ◽  
Design And Construction

Cement-stabilized macadam has good mechanical property, but also has the advantages of plate nature, water stability and frost resistance, and it is widely used in the pavement base or sub-base course of expressway. Based on the fundamental mechanical theory of the strength and the global stability of cement stabilization macadam, this article discusses how to design the grading of the cement stabilization macadam and the influencing factors, besides, it also presents the construction control methods of the cement stabilization macadam, which is of guiding significance to the design and construction of the cement stabilization macadam.

Effect of Carbon Black Reinforcing Fillers on Mechanical Properties of NBR Materials Used for the Progressing Cavity Pump

2015 ◽  
Vol 750 ◽  
pp. 339-344 ◽  
Author(s):  
Long Pan ◽  
Jin Zhu Tan ◽  
Liu Fei Fan ◽  
Xue Mei Han
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Carbon Black ◽  
Heat Resistance ◽  
Tear Strength ◽  
Resistance Property ◽  
Reinforcing Fillers ◽  
Materials Used

Three kinds of reinforcing fillers (i.e. carbon black N330, carbon black N880 and carbon-white) were used to study effect of the reinforcing fillers on the mechanical properties of NBR materials. The NBR materials with various reinforcing fillers were fabricated, and the mechanical property tests were performed in this work. The results show that the carbon black N330 made the NBR material have better tensile strength, hardness, elongation and compression elastic modulus compared to the carbon black N880 and the carbon-white, while the carbon-white made NBR material have better heat resistance, tear strength and elongation compared to the carbon black N330 and the carbon black N880. In addition, the tensile strength, tear strength, elongation and the heat resistance property of the NBR materials increased significantly with the increase of the carbon-white, but the compression elastic modulus decreased with the increase of the carbon-white.

scholarly journals The potential of recycled materials used in agriculture to contaminate food through uptake by livestock

2019 ◽  
Vol 667 ◽  
pp. 359-370 ◽  
Author(s):  
A.R. Fernandes ◽  
I.R. Lake ◽  
A. Dowding ◽  
M. Rose ◽  
N.R. Jones ◽  
...  
Keyword(s):  
Recycled Materials ◽  
Materials Used

Ocean Engineering Concrete Using High-Volume GGBS

2012 ◽  
Vol 238 ◽  
pp. 71-74 ◽  
Author(s):  
Ke Liang Li
Keyword(s):  
Mechanical Property ◽  
Diffusion Coefficient ◽  
Effective Diffusion ◽  
Chloride Ion ◽  
High Volume ◽  
Gas Diffusion ◽  
Good Mechanical Property ◽  
Ocean Engineering ◽  
Volume Stability ◽  
Chloride Ion Penetration

To improve ocean engineering durability, concrete using high-volume ground granulated blast-furnace slag (GGBS) was prepared, its mechanical property and durability were investigated. 4% activator and 61% GGBS were used to replace 65% cement in cementitious material. Activator was used to improve workability, volume stability and early strength of high-volume GGBS concrete. Ocean concrete using high-volume GGBS has good impermeability with small gas diffusion coefficient and relative permeability coefficient. As the good property of resistance to chloride-ion penetration with a low effective diffusion coefficient, it can protect steel-bar from corrosions. Property of frost resistance is also favorable. Expansions caused by alkali-silica reaction and sulfate attack fall down markedly after using high-volume GGBS. It is proved that the high-volume GGBS concrete with good mechanical property and durability is applicable to the constructing of ocean engineering concrete.

[P45] Phase equilibria of Co-Ti-V ternary system and the mechanical property of γ + γʹ

Calphad ◽  
2015 ◽  
Vol 51 ◽  
pp. 387-388
Author(s):  
J.J. Ruan ◽  
C.P. Wang ◽  
C.C. Zhao ◽  
S.Y. Yang ◽  
T. Yang ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Ternary System ◽  
Phase Equilibria

scholarly journals The Tournemire industrial analogue: reactive-transport modelling of a cement–clay interface

Clay Minerals ◽  
2013 ◽  
Vol 48 (2) ◽  
pp. 167-184 ◽  
Author(s):  
C. Watson ◽  
D. Savage ◽  
J. Wilson ◽  
S. Benbow ◽  
C. Walker ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Reactive Transport ◽  
Transport Model ◽  
Surface Complexation ◽  
General Purpose ◽  
Transport Modelling ◽  
Mineralogical Characterization ◽  
Modelling Techniques ◽  
Materials Used ◽  
Set Up

AbstractIn the post-closure period of a geological disposal facility for radioactive waste, leaching of cement components is likely to give rise to an alkaline plume which will be in chemical disequilibrium with the host rock (which is clay in some concepts) and other engineered barrier system materials used in the facility, such as bentonite. An industrial analogue for cement-clay interaction can be found at Tournemire, southern France, where boreholes filled with concrete and cement remained in contact with the natural mudstone for 15–20 years. The boreholes have been overcored, extracted and mineralogical characterization has been performed. In this study, a reactive-transport model of the Tournemire system has been set up using the general-purpose modelling tool QPAC. Previous modelling work has been built upon by using the most up-to-date data and modelling techniques, and by adding both ion exchange and surface complexation processes in the mudstone. The main features observed at Tournemire were replicated by the model, including porosity variations and precipitation of carbonates, K-feldspar, ettringite and calcite. It was found that ion exchange needed to be included in order for C-S-H minerals to precipitate in the mudstone, providing a better match with the mineralogical characterization. The additional inclusion of surface complexation, however, led to limited calcite growth at the concrete-mudstone interface unlike samples taken from the Tournemire site that have a visible line of crusty carbonates along the interface.

Improvement in Mechanical Property of SiO2 Films Prepared by Sol-Gel

2013 ◽  
Vol 744 ◽  
pp. 269-272 ◽  
Author(s):  
Pei Tao Guo
Keyword(s):  
Mechanical Property ◽  
Thermal Treatment ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Sol Gel ◽  
Dimethyl Formamide ◽  
Good Mechanical Property ◽  
Chemical Additives ◽  
Sol Gel Process ◽  
Silica Sols

Silica films prepared by the base catalyzed sol–gel process show poor mechanical property. In this study, silica anti-reflective films with good mechanical property have been prepared by the catalyzed sol–gel process with dimethyl formamide added as drying control chemical additives. The silica sol was first dip deposited onto substrate to form films on both sides of the substrate and then subjected to thermal treatment. After thermal treatment, the film was achieved due to the formation of porous structure in the resultant film as a result of decomposing tetraethylorthosilicate and dimethyl formamide. Nano-indenter measurement shows that the Young’s modulus and hardness of base catalyzed films are 10-20GPa and 0.25-0.55GPa, respectively. But the films added with dimethyl formamide are much better than those films derived from base-catalyzed silica sols, the Young’s modulus and hardness are 32-39GPa and 1.22-1.47GPa, respectively. The good mechanical properties make such films potential in both military and civil applications.

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