نتایج جستجو برای: polymer additives
تعداد نتایج: 108553 فیلتر نتایج به سال:
To investigate the failure of the poly(dimethylsiloxane) polymer (PDMS) at high temperatures and pressures and in the presence of various additives, we have expanded the ReaxFF reactive force field to describe carbon-silicon systems. From molecular dynamics (MD) simulations using ReaxFF we find initial thermal decomposition products of PDMS to be CH(3) radical and the associated polymer radical...
One of the ways to improve complex properties interpolymer materials (IM) is their modification by adding various additives composition. This, in turn, improves material’s strength, hardness, heat resistance, water and a number other important properties. (IMs) physical fillers This results improved IM Modification methods are used polymer-polymer complexes expand directions use. In order compo...
The evolution of properties crosslinked polyethylene (XLPE)-based insulating materials under radio-chemical ageing conditions is presented and discussed. In total, seven different polymer compounds were tested, characterised by an increasing quantity additives, for example, antioxidants (AOs) fillers as flame retardants. Samples analysed using testing techniques, that is, Fourier Transform Infr...
Asphalt additives, in general, aim to improve the performance of asphalt mixtures by enhancing their durability and resistance cracking other forms damage. additives can be natural or synthetic, some are biodegradable. Natural such as reclaimed pavement, much more environmentally friendly than synthetic ones. Using help reduce environmental impact mix while its performance. This study aims eval...
Silole-containing organic materials have been known to exhibit altered properties with respect to their carbon analogues. Recently, different categories of silole-containing polymers have been reported to show promising characteristics as materials for thin-film transistors and polymer solar cells. Most of the previous studies on silole derivatives mainly focus on the molecular orbital shapes a...
In many practical flow situations solutions of flexible polymers are found to exhibit a well-known non-Newtonian viscosity enhancement effect. This is likely to be due to extensional components in the flow field, which can cause flexible polymer molecules to stretch and orientate, causing an increase in the extensional viscosity. This viscosity enhancement is important in many industrial applic...
The trace polymer and additives in used stripper solutions were analyzed by a combination of Py-GC/MS and ESI-MS. In the comparison of the pyrolysates produced by the pyrolysis of the pure stripper and photoresist at 500 C, the presence of novolac polymer in the used stripper was confirmed by the presence of the characteristic peaks of its pyrolysates, such as those of the methylphenol, di-meth...
Carbon nanotubes (CNTs) are promising additives to polymeric materials due to the potential for their enhancement of the structural, mechanical and electronic properties of the resulting composite. However, improvements in properties are by no means guaranteed, and the results are often sensitive to the particular polymer chosen, in addition to the quantity and quality of CNTs used in the compo...
Intentional degradation by pro-oxidant agents, many of which are metal-based, can result in uncertainty as to the time of biodegradation. Polyacetal (POM) is a thermoplastic polymer commercially classified as an engineering polymer and contains carbon, hydrogen and oxygen. The depolymerization of POM during processing can enhance thermal decomposition. The aim of this study was to investigate t...
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