نتایج جستجو برای: waste polymers

تعداد نتایج: 151822  

Journal: :Energies 2022

Polymers and plastics are crucial materials in many sectors of our economy, due to their numerous advantages. They also have some disadvantages, among the most important problems with recycling disposal used plastics. The recovery waste is increasing every year, but over 27% landfilled. rest recycled, where, unfortunately, incineration still common management method. From an economic perspectiv...

Journal: :Journal of Sustainable Architecture and Civil Engineering 2023

The increase in cost of carbonaceous materials, as well significant costs industrial waste, have prompted scientists to use alternative raw materials components the construction industry. This study investigated suitability waste products from coke industry modifying agents for polymer bitumen. by-product coking reaches a high level silicon and is called silicon-containing additive (SCA), compo...

Journal: :physical chemistry and electrochemistry 0

polypyrrole (ppy) nanofibers have been fabricated on glassy carbon electrode (gce) usingelectrochemical technique. electropolymerization of pyrrole (py) for the fabrication of ppy nanofiberswas occurred on gce by applying a fixed potential of about 0.85 v for 120 sec in a mild basic solutioncontaining sodium carbonate and sodium perchlorate. in the mild basic media, the monomer, py, isoxidized ...

Journal: :Chemical Engineering Journal 2023

Biodegradable or recyclable transient electronics originated from natural polymers are considered as significant solution for electronic waste (e-waste) management, sustainable development, and emerging implantable devices. Yet, they mostly struggling mismatched mechanical features with human tissue inferior environmental adaptability. In this work, based on the novel covalent-like hydrogen bon...

2010
B. Hu

The accuracy of sink-float separations in water-based media such as Magnetic Density Separation is compromised by tiny air-bubbles attached to the surface of hydrophobic materials in the feed. Separations of plastics mixtures with accuracy better than 10 kg/m 3 require a total elimination of air-bubbles by pre-wetting the surface of the feed particles with a thin film of water. Theoretical and ...

2007
ROBERT KUNIN

One of the most significant advances in ion exchange resin and adsorbent technology has been the development of the macroreiicular pore structure. Various synthetic routes have been developed for preparing both ion exchange resins and polymeric adsorbents of high surface area and pore volume. Further, the synthesis has been developed to a degree such that the surface area and pore parameters ca...

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