2 edition of Fundamental study of adhesion problems involving polyethylene and other polymers found in the catalog.
Fundamental study of adhesion problems involving polyethylene and other polymers
Michael Boguslaw Konieczko
|Statement||byMichael Boguslaw Konieczko.|
|Series||Leicester Polytechnic thesis|
When mixing polymers with other components, be it fillers or even other polymers, these two or more components will not necessarily like each other. In most of the cases, there will be a repelling force and very poor or even no adhesion. This will occur while mixing or even in many cases also when trying to adhere such components. Water-based ink formulations containing wax, surfactant, and defoamer additives were prepared and printed on polyethylene film substrates. Standard test methods for adhesion, rub resistance, and gloss were done on the printed polyethylene films. Quantitative methods for the assessment and evaluation of the three print properties were developed. Image analyses were done to quantify adhesion .
Polymer identification can be performed to determine the components of an unknown material, confirm the identity of a suspect material or to identify differences in “equivalent” polymers. An unknown polymer is often the underlying cause of many difficult problems involving plastics and polymers. are Polypropylene (PP), Polyethylene (PE), High-Density Polyethylene (HDPE), EPDM, all of which have low surface energies of between 29 – 36 Dynes/cm² (mN/m). Achieving any level of adhesion to low surface energy materials e.g. P.P. P.E., P.T.F.E., is difficult at the best of times and sometimes near impossible, basically these materials are.
polyethylene, but they have somewhat better physical strength at lower density. Mould shrinkage is less of a problem with polypropylene and more predictable than with the other polyolefins. As a result, polypropylene is used in many structural applications. Polymethylpentene is a rigid, chemically resistant polyolefin that has. Synthetic polymers based on polyethylene glycol or polylactic acid have also been used. Advantages of synthetic polymers include the relative ease with which their properties can be controlled, and the lower cost compared to some (but not all) natural polysaccharides that have to undergo extraction and purification processes.
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Fundamental study of adhesion problems involving polyethylene and other polymers Konieczko, Michael Boguslaw (Thesis or dissertation / Doctoral / PhD) Space and comfort. Fundamental study of adhesion problems involving polyethylene and other polymers Author: Konieczko, Michael Boguslaw ISNI: Awarding Body: De Montfort University Current Institution: De Montfort University Date of Award: Cited by: 1.
Fundamental study of adhesion problems involving polyethylene and other polymers Konieczko, Michael Boguslaw (Thesis or dissertation / Doctoral / PhD) Iconic conductors for solid state battery systems Hackwood, Susan (Thesis or dissertation / Doctoral / PhD) In this project, it has been demonstrated that cuprous iodide Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Author: Michael Boguslaw Konieczko.
Adhesion to polyethylene and polypropylene D. Brewis School of Chemistry, Leicester Polytechnic, Leicester LE1 9BH, UK and D. Briggs ICI Plastics Division, Welwyn Garden City, Hertfordshire AL 7 1HD, UK (Received 13 August 1 ) Adhesion to polyethylene and polypropylene is a complex subject requiring understanding of (a) the poor adhesive characteristics of these polymers Cited by: Materials.
Linear MDPE was provided by The Dow Chemical Company (Midland, MI, USA) with trade name DHDA NT. This polymer has a density of g cm −3 and a melt index of g per 10 min. Cappella et al., Using AFM force-distance curves to study the glass-to-rubber transition of amorphous polymers and their elastic–plastic properties as a function of temperature.
Macromolecu () Google Scholar. This book chronicles the proceedings of the Second International Symposium on Polymer Surface Modification: Relevance to Adhesion held Newark, New Jersey, MayPolymeric materials are intrinsically not very adhesionable and this necessitates their surface treatment to enhance their adhesion characteristics to other materials.
Since the first symposium on this topic, held in 4/5(1). 1. Introduction to adhesion Adhesion phenomena.
Adhesion is the interatomic and intermolecular interaction at the interface of two is a multi-disciplinary topic which includes surface chemistry, physics, rheology, polymer chemistry, stress analysis, polymer physics and.
part II, technologies and methods for adhesion improvement on contact surface areas between polymer and ceramics, metal, other polymer and were summarized, follow ed by a conclusion section.
Numerous research study has been done based on natural residues, like wood flour , sawdust , rice husk , , bamboo powder  coir  and other lignocelluloses materials [ The use of lasers to weld polymer sheets provides a means of highly-adaptive and custom additive manufacturing for a wide array of industrial, medical, and end user/consumer applications.
This paper provides an open source design for a laser polymer welding system, which can be fabricated with low-cost fused filament fabrication and off-the-shelf mechanical and electrical parts. Adhesion of Polymers. Adhesion is the tendency of dissimilar surfaces to stick to one another.
It can be measured in terms of work of adhesion in J/m 2. It is the energy needed to separate 1m² of joined materials. It can also be measured as peel in N/m, which is the force required to pull off a strip of material that is 1 meter wide.
The adhesion of glassy or semicrystalline polymers to themselves or to other polymers is often poor. Polymers gain their strength from the mechanical interconnection between different chains. This interconnection can occur either by the use of long chains that entangle with each other or by chemically joining the chains by cross-linking.
A review of the current understanding of adhesion between a synthetic polymer and a second material is presented.
The information gives a broad picture of the issues and understanding. How materials interact, coupling, interfaces, interdiffusion, failure mechanisms etc are discussed. The cost of most primary materials is increasing, therefore, finding innovative solutions for the re-use of residual waste has become a topic discussed more intensely in recent years.
WPCs certainly meet some of these demands. The presented study is focused on an experimental analysis of the effect of surface treatment on the adhesive properties of selected WPCs. Fundamentals of Packaging Technology is a step-by-step explanation of packaging design, materials, & manufacturing applicable to a wide range of industries.
Differences in performance can be observed even when relatively small changes in density are made. Often these changes are made unwittingly. Several years ago, we worked with a client on a PE part made of a grade with a density of g/cm is at the upper end of the density spectrum for polyethylene.
This study reports the material selection of build platform alternatives based on contact angle measurements. The adhesion forces, investigated by shear-off measurements, between PP-based ﬁlaments and the most promising platform material, an ultra-high-molecular-weight polyethylene (UHMW-PE), were optimised by a thorough parametric study.
By Scott Sabreen. Problems arising from polymeric adhesion bonding are pervasive throughout the plastics industry. Two-dimensional and three dimensional products often require bonding plastic-to-plastic, plastic-to-metal, plastic-to-composite, and so on.
In other words, on a high surface energy material, the adhesive can flow 31 Polyethylene 29 Polypropylene 28 Tedlar® 18 Teflon® (Acrylic or Enamel) Paint Metal Paint Metal Fundamentals of Adhesion Title: Fundamentals of Adhesion pub Author. Polymers are macromolecular compounds that consist of macromolecules built from repeated structural units (mers).
They are usually a mixture of compounds (homologs) with different chain length, i.e. compounds of different molecular weights [1, 2].Molecular weight is an important feature that determines the properties of a polymer and is closely related to polymerisation, i.e.
one of the ways.Polymers are of two types: naturally occurring and synthetic or man made. Natural polymeric materials such as hemp, shellac, amber, wool, silk, and natural rubber have been used for centuries.
A variety of other natural polymers exist, such as cellulose, which is the main constituent of wood and paper. The list of synthetic polymers, roughly in order of worldwide demand, includes.