نتایج جستجو برای: modified poly ethylene terephthalate
تعداد نتایج: 352766 فیلتر نتایج به سال:
The term “nanocomposite” is widely used to describe a very broad range of materials, where one of the phases has a submicrometer dimension [1–4].1 In the case of polymerbased nanocomposites, this typically involves the incorporation of “nano” fillers with one (platelets), two (fibers, tubes), or all three dimensions at the submicrometer scale. However, strictly speaking, simply using nanometer-...
Poly(ethlene terephthalate) (PET) used in artificial heart valve sewing rings were treated by argon plasma discharge and grafted by different molecular water-soluble polymer—polyethylene glycols (PEG). The surface properties of the plasma treated and grafted films were determined by contact angle measurement, X-ray photoelectron spectroscopy (XPS), and attenuated total reflection Fourier transf...
By employing a “modulated-temperature” heating programme composed of a series of heat-isotherm stages, it is possible to separate the change in dimensions of an oriented material during heating into two contributions: a thermally “reversing” component which is due to linear thermal expansion and a “nonreversing” part arising from relaxation to the disordered state on heating above Tg . Some pre...
Poly(ethylene terephthalate) hydrolase (PETase) from Ideonella sakaiensis 201-F6 was expressed and purified Escherichia coli to hydrolyze poly(ethylene (PET) fibers waste for its monomers recycling. Hydrolysis carried out at pH 8 30 °C found be the optimal condition based on measured monomer mono(2-hydroxyethyl) terephthalate (MHET) terephthalic acid (TPA) concentrations after 24 h reaction. Th...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید