نتایج جستجو برای: bio based polymer
تعداد نتایج: 3048753 فیلتر نتایج به سال:
Bisphenol A (BPA) is a ubiquitous compound used in polymer manufacturing for a wide array of applications; however, increasing evidence has shown that BPA causes significant endocrine disruption and this has raised public concerns over safety and exposure limits. The use of renewable materials as polymer feedstocks provides an opportunity to develop replacement compounds for BPA that are sustai...
Most bituminous adhesives or binders that are used for pavement materials are derived primarily from fossil fuels. With petroleum oil reserves becoming depleted and the drive to establish a bio-based economy, there is a push to produce binders from alternative sources, particularly from biorenewable resources. However, until now, no research has studied the applicability of utilizing bio-oils a...
in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...
With oil supplies, needed for plastic production, decreasing dramatically, there is a clear driver alterative polymers from sustainable resources. Poultry feathers, containing ?90% keratin, are one source of natural polymer with huge potential biopolymer production. However, the presence crosslinks, known as disulphide bonds, hinders processability. This paper reviews techniques to enable break...
Compared to conventional rigid electronics, polymer-based soft electronics conformal organisms of irregular shapes have emerged as the next-generation devices, especially benefiting long-term bio-interface interactions that avoid mechanical mismatch and consequent adverse immune responses. Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has become a promisi...
چکیده سابقه و هدف polyetheretherketone یک پلیمر نیمه کریستالینی با عملکرد عالی است که در ساخت پروتزهای دندانی تحت عنوان bio hpp به کار گرفته شده است. نسل قبلی آن نیز، bio xs از گروه پلی اترکتون ها بوده ولی فاقد فیلرهای سرامیکی بوده است. در راستای ارزیابی ادعای سازندگان درباره ی خصوصیات مکانیکی این رزین ها؛ تحقیق حاضر با هدف مقایسه ی استحکام خمشی و کششی رزین های ترموپلاستیک bio hpp و bio xs د...
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