Water absorption of water-based anticorrosive coatings and its effect on mechanical property and adhesive performance

2013 ◽  
Vol 11 (2) ◽  
pp. 199-205 ◽  
Author(s):  
Takuya Kamisho ◽  
Yukitoshi Takeshita ◽  
Seizo Sakata ◽  
Takashi Sawada
Keyword(s):  
Mechanical Property ◽  
Water Absorption ◽  
Anticorrosive Coatings ◽  
Water Based ◽  
Adhesive Performance

scholarly journals Super Absorbent polymers and their Composites for Application in Agriculture

2021 ◽  
Vol 9 (9) ◽  
pp. 665-672
Author(s):  
Aryan Dwivedi
Keyword(s):  
Mechanical Property ◽  
Water Absorption ◽  
Soil Water ◽  
Water Retention ◽  
Hydraulic Parameters ◽  
Dryland Agriculture ◽  
Superabsorbent Polymers ◽  
Over Time

Abstract: In dryland agriculture, Superabsorbent Polymers (SAPs) are popular. However, the mechanical property, repetitive soil water absorption and release, regularly affects the water retention and hydraulic parameters of the soil, and since this property decreases progressively over time, the results of the property appear to be unpredictable. Polymers use to in agriculture field.

scholarly journals Rice flour-based nanostructures via a water-based system: transformation from powder to electrospun nanofibers under hydrogen-bonding induced viscosity, crystallinity and improved mechanical property

RSC Advances ◽  
2017 ◽  
Vol 7 (32) ◽  
pp. 19960-19966 ◽  
Author(s):  
Sarekha Woranuch ◽  
Autchara Pangon ◽  
Kantapat Puagsuntia ◽  
Nakarin Subjalearndee ◽  
Varol Intasanta
Keyword(s):  
Mechanical Property ◽  
Hydrogen Bonding ◽  
Electrospun Nanofibers ◽  
Rice Flour ◽  
System Transformation ◽  
Biocompatible Material ◽  
Water Based

Rice flour is a naturally abundant and renewable biodegradable and biocompatible material.

scholarly journals Dimensional Stabilization of Engineered Wood Floor Using Linseed Oil and Paraffin Wax Impregnation

2021 ◽  
Vol 9 (10) ◽  
pp. 776-781
Author(s):  
Akhil Saji
Keyword(s):  
Mechanical Property ◽  
Water Absorption ◽  
Dimensional Stability ◽  
Linseed Oil ◽  
Paraffin Wax ◽  
Wood Veneer ◽  
Wood Modification ◽  
Wood Floor ◽  
Wood Flooring ◽  
Engineered Wood

Abstract: Engineered wood flooring comprises three or more layers of wood veneer adhered together to create a plank. The surfaces were coated to scale back water absorption. However, as wood is a hygroscopic substance, it loses and gains moisture from the atmosphere. This affects the dimensional stability of the floor badly, which emanates wide gaps between boards, cupped edges, crowning edges, and bulking of boards. Hence, the main intention of this study was to stabilize the engineered wood flooring by filling the wood cavity with linseed oil, paraffin wax, and a mixture of both, and evaluate the physical, mechanical property of treated and non-treated engineered wood flooring boards. The treatments were conducted at different temperature and durations. Keywords: Dimensional stabilization, Wood modification, Wood floor, Linseed oil, Paraffin wax, Impregnation

Limestone Waste Incorporation in Clayey Mass for Rustic Ceramic Tiles Manufacturing

2020 ◽  
Vol 1012 ◽  
pp. 221-226
Author(s):  
A.M.M. Santos ◽  
A.C.A. Prado ◽  
M.B.M. Matos ◽  
P.H.A. Feitosa ◽  
J.H.A. Feitosa ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Flexural Strength ◽  
Water Absorption ◽  
Firing Temperature ◽  
Ceramic Tile ◽  
Mechanical Characteristics ◽  
Property Values ◽  
Ceramic Tiles ◽  
Roof Tile ◽  
Firing Shrinkage

In the south of Ceará (Brazil), Cariri region, there is a production center for roof tiles and bricks. At that same region, there has been an expressive mining of laminated limestone, known as Pedra Cariri (Cariri Stone), which has produced large amounts of CaCO3-rich waste, that causes undesirable impacts to the environment. This work aimed to analyze the feasibility of producing rustic ceramic tiles, made up of clayey masses used in the region with the addition of this waste, aiming at the diversification of red ceramic products in a sustainable way. The mixtures were pressed, fired in maximum firing temperature which varies from 750° to 1150oC and had their physical-mechanical characteristics tested. The results indicated that the clayey mass is composed of kaolinite, feldspar and quartz, while montmorillonite and/or vermiculite is only found in roof tile clayey mass. The waste is mainly made of calcite. In general, the values of water absorption were compatible with porous rustic ceramic tile and the addition of Pedra Cariri waste provided lower values of firing shrinkage as well as the increase of the flexural strength. The samples of roof tile clayey mass (10% of waste at 850°C and at 1150°C) obtained physical-mechanical property values that match Brazilian technical norms to BIII type ceramic tile. Therefore, the mixture formulated with tile clayey mass and limestone waste presents potential to be utilized in the manufacture of ceramic roof tiles.

Water Resistance Research of Anionic Polymerized PA6/ABS Alloy

2013 ◽  
Vol 634-638 ◽  
pp. 2106-2109
Author(s):  
Hong Kai Zhao ◽  
Li Guang Xiao ◽  
Jing Wu Gao
Keyword(s):  
Mechanical Property ◽  
Interfacial Tension ◽  
Water Absorption ◽  
Sodium Hydroxide ◽  
Anionic Polymerization ◽  
Water Resistance ◽  
Sem Analysis ◽  
Uniform Dispersion ◽  
Abs Resin ◽  
Blend Polymer

Macromolecule modification activator was prepared using prepolymer of HTBN end capped by HDI biuret (N-75). Then the ABS/PA6 co-blend polymer was prepared by anionic polymerization with putting ABS resin into molten caprolactam monomer at the temperature of 160-180 °C and the sodium hydroxide being used as activator. Compared with PA6， the copolymer alloy shows obviously low water absorption and slightly reducing mechanical property after absorption， while the loss of mechanical property is lower. The SEM analysis reveals that the reaction insitu compatibilization reduces the interfacial tension between PA6 and ABS and makes the ABS grain smaller and more uniform dispersion in PA6.

Preparation and Characterization on PU/CS Nanofiber Membrane

2012 ◽  
Vol 268-270 ◽  
pp. 193-197
Author(s):  
Long Jiao ◽  
Wei Min Kang ◽  
Bo Wen Cheng
Keyword(s):  
Mechanical Property ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Water Absorption ◽  
Nanofiber Membrane ◽  
Electrostatic Spinning ◽  
Moisture Permeability ◽  
Antibacterial Performance ◽  
Scanning Electron

PU/CS nanofiber membrane was prepared by means of electrostatic spinning. The morphology of nanofiber membrane was examined by a scanning electron microscope (SEM), and the mechanical property, water absorption, moisture permeability and antibacterial performance were also investigated. The results show that the diameter and mechanical property of PU/CS nanofiber decreased with the increase of the content of CS. However, the water absorption, moisture permeability and antibacterial performance were improved significantly with the addition of CS.

Water absorption and mechanical property of an epoxy composite coating containing unoxidized aluminum particles

2015 ◽  
Vol 87 ◽  
pp. 106-111 ◽  
Author(s):  
Zhe Zhai ◽  
Lajun Feng ◽  
Zheng Liu ◽  
Shasha Zhou ◽  
Hong Lou ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Water Absorption ◽  
Composite Coating ◽  
Epoxy Composite ◽  
Aluminum Particles

scholarly journals The influence of water-based drilling fluid on mechanical property of shale and the wellbore stability

Petroleum ◽  
2016 ◽  
Vol 2 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Shu He ◽  
Lixi Liang ◽  
Yinjin Zeng ◽  
Yi Ding ◽  
Yongxue Lin ◽  
...  
Keyword(s):  
Mechanical Property ◽  
Drilling Fluid ◽  
Wellbore Stability ◽  
Water Based ◽  
Influence Of Water

Hydrothermal Ageing Mechanism of Natural Fiber Reinforced Composite in Hot Water

2012 ◽  
Author(s):  
Mengyuan Liao ◽  
Yuqiu Yang ◽  
Ying Yu ◽  
Hiroyuki Hamada
Keyword(s):  
Mechanical Property ◽  
Weight Loss ◽  
Water Absorption ◽  
Weight Change ◽  
Natural Fiber ◽  
Water Environment ◽  
Hot Water ◽  
Woven Fabric ◽  
Bending Test ◽  
Reinforced Composite

As well known, sustainability issues represented by the environment and resource protection have been paid close attention nowadays. Natural fiber has been an increasing interest and promising as reinforcing fiber in polymeric composites due to its low density, cost, acceptable specific strength and biodegradation. Even though, the principle challenge for natural fibers used as reinforcement is their internal strong water-absorption ability when the exposed in wet and water environment. Long-term hydrothermal degradation behavior of Glass reinforced composite (GFRP) and jute reinforced composite (JFRP) have been discussed in previous study on the basis of the great amount of physical and mechanical testing results. As former working reported, gained water content increases linearly against the square root of aging time followed by gradual increase trend in longer duration both in JFRP and GFRP. In particularly, JFRP’s weight loss performance occurred earlier with higher value compared to GFRP. However, water absorption and weight loss mechanism, relationship between weight change and retention of mechanical property for JFRP didn’t report and illustrate clearly and extensively. Therefore, in order to figure it out comprehensively, the current study was focus on hydrothermal ageing mechanism and corresponding degraded mechanical behavior. Firstly, 2 layers of deeply dried and natural dried jute woven fabric reinforced unsaturated polyester were fabricated by hand-layup method. The cut samples were immersed into 80°C hot water bath for predetermined durations and inspected by ultrasonic wave. Afterwards, 3-point bending test with acoustic emission (AE) measurement was carried out for aged samples. The weight change mechanism, evolution of internal deterioration and mechanical property along with ageing time was investigated. The result indicated that JFRP can absorb water easily and quickly compared with GFRP owing to jute fiber’s hydroscopic nature. Weight loss was caused as a result of resin particle loss and pectin dissolution from the developed micro-crack owing to hydrothermal water environment. What’s more, internal serious deterioration occurred after 24 hours immersion leading to larger reduction of mechanical property.

NITROGEN-CONTAINING CHELATE COMPLEXES AND MONOMERS BASED ON THEM

2021 ◽  
Vol 55 (1 (254)) ◽  
pp. 7-11
Author(s):  
Valentina M. Mavisakalyan ◽  
Mejlum L. Yeritsyan
Keyword(s):  
Water Absorption ◽  
Chelate Complexes ◽  
Water Based ◽  
Applied Purpose

By the interaction between N-methylolthiourea and Co2+, Mn2+ acetates are obtained compounds that were later used for the synthesis of vinyl bifunctional groups containing polymerizable chelate complexes. These compounds are recommended to be used as crosslinkers for obtaining, on the basis of water-based soluble monomers, spatially cross-linked water-swellable copolymers with applied purpose. There are dynamics of water absorption of copolymers from the time of their stay in water.

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