نتایج جستجو برای: eva copolymer
تعداد نتایج: 15700 فیلتر نتایج به سال:
Abstract Mouthguards are polymeric devices recommended to be used by athletes help prevent orofacial injuries. Some of the problems described when using mouthguards can addressed producing customized with thinner walls additive processing techniques. In present work, new materials for this application, such as poly(lactic acid) (rPLA) recycled from food packaging, poly(methyl methacrylate) (PMM...
The present work presents focuses on the use of different admixtures for development rendering lime-based mortars with improved adhesion and durability, as well reduction cracking. To this aim, combinations an improver (ethylene–vinyl acetate copolymer, EVA), a water repellent agent (sodium oleate), viscosity enhancer (a starch derivative) mineral admixture (pozzolanic addition nanosilica or me...
The pyrolysis of solid polymeric materials is a complex process that involves both chemical and physical phenomena such as phase transitions, chemical reactions, heat transfer, and mass transport of gaseous components. For modeling purposes, it is important to characterize and to quantify the properties driving those phenomena, especially in the case of flame-retarded materials. In this study, ...
The article deals with the preparation, properties and the usage of polymer barrier films. The problem of exfoliation and dispersion of the filler in the polymer matrix and mechanical properties of barrier films is discussed. This problem is connected with the use of nanofiller either in the polymer matrix or on the surface of prepared films. Together the evaluating comparison of used nanofille...
Formulations based on mineral fillers and polymeric matrices of different nature were studied to obtain halogen-free flame retardant compounds (HFFR) for cable applications. The work was carried out by comparing fire-retardant natural origin with synthetic ones available the market. As a reference, formulation micronized magnesium hydroxide (n-MDH, obtained from brucite) an ethylene-vinyl aceta...
this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...
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