Thermoplastic poly(urethane-siloxane)/organoclay nanocomposites (TPU NCs) with different hard segment content (20?55 wt. %) were prepared by in situ polymerization the presence of organically modified montmorillonite as a nanofiller (Cloisite 30B; 1 %). Hydroxyl-terminated ethoxypropyl- poly(dimethylsiloxane) was used soft segment, while 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol co...

Curing-induced internal stresses in epoxy coatings are highly influenced by the type and concentration of product ingredients conditions applied. In this work, effects on curing-dependent modulus stress development epoxy/crosslinker chemistry, curing temperature, relative humidity, filler conditions, initial solvent concentration, studied. Analytical methods include attenuated total reflection-...

Abstract The aim of the study was to determine selected characteristics surimi-like material (SLM) made from muscle tissues Sinanodonta woodiana (Lea, 1834) freshwater mussels. research consisted unwashed mussel homogenate as control sample—C, tissue twice washed with water (SLM-W) and sample NaCl at a concentration 0.169 mol/L well (SLM–S). A raw surimi like-materials were analysed using SDS-P...

several types of hybrid catalysts are made through mixing of 4th generation ziegler-natta (zn) and (2-phind)2zrcl2metallocene catalysts using triethylaluminum (tea) as coupling agent. response surface methodology (rsm)is used to evaluate the interactive effects of different parameters including amounts of metallocene and tea andtemperature on metallocene loading. analyzing the amounts of al and...

This study aims to understand the role of storage conditions (temperature, T and moisture content) in reactions involved cation-pectin-phytate hypothesis, postulated cause Hard-to-cook (HTC) defect beans as influenced by plasticizing effect (glass transition (Tg) concept). The enzyme catalysed reactions, demethylesterification pectin hydrolysis phytic acid, were monitored respectively simplifie...

Abstract This paper discusses the influence of process parameters on degradation and mechanical properties laser-sintered polylactide (PLA) microspheres obtained using novel dual beam laser sintering method (DBLS). DBLS is a technique developed by our team that modification standard polymer (pLS), with potential to reduce during process. The PLA were produced emulsion-solvent evaporation method...

ABSTRACT Dental microwear texture analysis (DMTA) is widely used for diet inferences in extant and extinct vertebrates. Often, a reference tooth position analysed specimens, while isolated teeth are lumped together fossil datasets. It therefore important to test whether dental (DMT) specific and, if so, what causes the differences wear. Here, we present results from controlled feeding experimen...