Functional surfaces produced by foam coating

TAPPI Journal ◽  
2016 ◽  
Vol 15 (8) ◽  
pp. 515-521 ◽  
Author(s):  
EIJA KENTTÄ ◽  
HANNA KOSKELA ◽  
SARA PAUNONEN ◽  
KARITA KINNUNEN-RAUDASKOSKI ◽  
TUOMO HJELT
Keyword(s):  
Life Time ◽  
Silica Coating ◽  
Foaming Properties ◽  
Coated Paper ◽  
Paper Properties ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Size Stability ◽  
Stability Measurement ◽  
Standard Paper

This paper reports experiments on silica coating formulations that are suitable for application as a thin pigment layer with foam coating technique on a paper web. To understand the foaming properties of nanosilica dispersions, the critical micelle concentration, foam half-life time, and foam bubble size stability were determined with three different foaming agents. The results indicate that the bubble stability measurement is a useful characterization method for foam coating purposes. Pilot foam coating trials were done and the effects of the chosen foaming agents were studied on the properties of the nanosilica-coated paper. The surface hydrophilicity of silica coated paper was related not only to silica pigment, but also to the chemical nature of the foaming agent. Standard paper properties were not affected by the thin silica coating.

Bislauramide Concrete Foaming Agent: Synthesis and Properties

2011 ◽  
Vol 477 ◽  
pp. 205-210
Author(s):  
Cai Lin Liu ◽  
Yu Rong Zhang ◽  
Xian Yan Ren ◽  
Hai Jun Yang ◽  
Jun Xiao Yang
Keyword(s):  
Synergistic Effects ◽  
Chloroacetic Acid ◽  
Foaming Properties ◽  
Dodecanoic Acid ◽  
Temperature Reaction ◽  
Synthetic Route ◽  
Reaction Conditions ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Molar Ratios

A bislauramide concrete foaming agent was prepared in good yield by a simple synthetic route using readily available hexamethylenediamine, dodecanoic acid, and chloroacetic acid. The reaction conditions were optimized by changing reaction temperature, reaction time, and/or molar ratios of reactants. Significantly, the concrete foaming agent has very low surface tension and good foaming properties, and shows evident synergistic effects with commercial concrete foaming agents.

Effect of Plasticizer on the Morphology and Foaming Properties of Poly(vinyl alcohol) Foams by Supercritical CO2 Foaming Agents

2019 ◽  
Vol 27 (12) ◽  
pp. 2878-2885 ◽  
Author(s):  
Duoyuan Yin ◽  
Aimin Xiang ◽  
Yan Li ◽  
Haisong Qi ◽  
Huafeng Tian ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Supercritical Co2 ◽  
Poly Vinyl Alcohol ◽  
Foaming Properties ◽  
Foaming Agents

scholarly journals The effect of foaming agent on mechanical and physical properties of Polypropylene

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
SEDEF CAKIR 1 ◽  
MUHAMMED AYCICEK 1 ◽  
EDIZ ALTUN 2 ◽  
Akin Akinci 1
Keyword(s):  
Mechanical Properties ◽  
Cell Density ◽  
Cell Morphology ◽  
Injection Pressure ◽  
Skin Layer ◽  
Polymer Materials ◽  
Cell Diameter ◽  
Melt Temperature ◽  
Foaming Agent ◽  
Foaming Agents

In this study, Polypropylene (PP) foam materials were used with injection parameters such as melting, molding and injection temperatures. To produce foam materials, chemical foaming agents were used, and added to polymer materials as 1wt.%, 1.5wt.%, 2wt.%, 2.5wt.%, 3wt.%. The mechanical properties of foam samples were determined based on the parameters. Cell morphology characterization such as cell diameter, cell count, skin layer thickness and cell density, and mechanical properties such as tensile and impact strength of polymer foams were examined.Generally, the closed-cell foam structure was obtained. The most important parameters affecting the cell morphology have been injection pressure, melt temperature and amount of foaming agent. With increasing the amount of foaming agent, cell density increased, foam density and mechanical properties decreased.

scholarly journals Alternative foaming agents for fabrication of glass foam

2021 ◽  
Vol 11 (5) ◽  
pp. 39-48
Author(s):  
Ildikó Fóris ◽  
Gábor Mucsi
Keyword(s):  
Raw Materials ◽  
Powder Mixtures ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Heat Treated ◽  
Specimen Density ◽  
Before And After ◽  
Different Temperatures ◽  
Glass Foam ◽  
Eggshell Waste

Glass foam tablets were produced from container glass bottles (CGB) using eggshell waste (ESW) and perlite (P) as foaming agent in different portions. The ground raw materials (CGB, ESW, P) were homogenized and pressed with hydraulic piston press machine at different pressures (in the case of P containing tablets 30 MPa and ESW containing tablets 15 MPa, 30 MPa and 40 MPa were used).The obtained glass tablets were heat treated at different temperatures (in the case of P containing tablets 800 °C, 900°C, 1000°C and 1100°C, and ESW containing tablets 600 °C, 700 °C, 800 °C and 900 °C were used). The study shows the specimen density of tablets before and after heat treatment, as well as the true density of the powder mixtures before tableting and the abrasion resistance of the glass foam products.

Determination the Component of Foaming Agent and its Natural Degradation Characteristics

2013 ◽  
Vol 641-642 ◽  
pp. 351-354 ◽  
Author(s):  
Su Xia Hou
Keyword(s):  
Mine Water ◽  
Initial Density ◽  
Oxygen Demand ◽  
Scientific Basis ◽  
Guangxi Province ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Natural Degradation ◽  
Ultraviolet Ray ◽  
Made In

A lot of foaming agents are used during the mining mineral processing. The foaming agent is hard to degrade and remains in the wastewater and chemical oxygen demand (COD) is far exceeded the standard in mine water. In this paper, the component of foaming agent made in Guangxi province was determined and analyzed through experiments. At the same time, the effect and the contribution of foaming agent to the COD materials in the water were also been studied. The degradation performances of foaming agent in different conditions such as pH, initial density and temperature, with aeration or without aeration, with ultraviolet ray or without ultraviolet ray were studied particularly. The result of this study provided the scientific basis in choosing the appropriate new environmental foaming agent and reduced the content of COD in the flotation wastewater.

Dodecanamide Concrete Foaming Agent: Preparation and Application

2011 ◽  
Vol 71-78 ◽  
pp. 799-802
Author(s):  
Cai Lin Liu ◽  
Yu Rong Zhang ◽  
Hai Jun Yang ◽  
Xian Yan Ren ◽  
Jun Xiao Yang
Keyword(s):  
Chloroacetic Acid ◽  
Foaming Properties ◽  
Dodecanoic Acid ◽  
Temperature Reaction ◽  
Synthetic Route ◽  
Foam Concrete ◽  
Reaction Conditions ◽  
Available N ◽  
Foaming Agent ◽  
Molar Ratios

A lauramide concrete foaming agent was prepared by a simple synthetic route using readily available N-(2-hydroxyethyl)ethylenediamine, dodecanoic acid, and chloroacetic acid. The reaction conditions were optimized by changing reaction temperature, reaction time, and/or molar ratios of reactants. Significantly, the concrete foaming agent has very low surface tension and good foaming properties, which could be directly used without purification and has widely applicable potentials in low-density foam concrete.

Modelling coated paper properties: application of neural networks

1997 ◽  
Vol 28 (9) ◽  
pp. 865-870
Author(s):  
M. GORNIK ◽  
G. NOVAK ◽  
E. GOVEKAR
Keyword(s):  
Neural Networks ◽  
Coated Paper ◽  
Paper Properties

The Influence of the Foaming Agents on the Porosity of the PM Hydroxyapatite-Based Biocomposites Processed by Two-Step Sintering

2015 ◽  
Vol 1128 ◽  
pp. 178-186
Author(s):  
Cristina Teișanu ◽  
Carmen Ristoscu ◽  
Gabriela Sima
Keyword(s):  
Foaming Agent ◽  
Foaming Agents ◽  
Space Holder ◽  
Blowing Agent ◽  
Foaming Process ◽  
Eds Analysis ◽  
Titanium Hydride Powder ◽  
The Matrix ◽  
Powder Particles ◽  
Hydride Powder

This paper presents a comparative analysis of the foaming process developed in hydroxyapatite (HAp)-based bicomposites as a function of the foaming agent. The matrix of the biocomposite consists of either submicronic or micronic powder particles of HAp. The titanium hydride powder was added as reinforcement’s precursor as well as blowing agent, and in order to increase the biocomposites’ porosity calcium carbonate was added as space holder agent. The powders mixture was homogenized in a planetary ball mill with a single grinding bowl for 1 minute in air. Uniaxial cold compaction at 120-170 MPa was performed in order to obtain cylindrical green parts, which next were heated in argon atmosphere using the two step sintering technique at temperatures of 900 °C for 1 minute and 800°C for 450 - 600 minutes. The porosity of the biocomposite is analysed through calculations and SEM and EDS analysis highlighting the influence of the above mentioned foaming techniques (blowing and space holder).

scholarly journals Influence of SBR latexes on coated paper properties.

1984 ◽  
Vol 38 (12) ◽  
pp. 1196-1201
Author(s):  
Akira Uchida
Keyword(s):  
Coated Paper ◽  
Paper Properties
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