نتایج جستجو برای: polyethylene pe

تعداد نتایج: 52018  

Journal: :Journal of Applied Polymer Science 2021

Blending with ethylene-based flexible polymers such as polyethylene (PE) is one of the strategies to toughen poly(lactic acid) (PLA), an inherently brittle biodegradable plastic enjoying growing demands worldwide. Interfacial tension plays a crucial role in blend formulation. Yet several literature reports on PE/PLA interfacial contradict each other, giving ~5 mN/m and ~11 mN/m. In this work, w...

Journal: :Buildings 2022

The performance of nine different vapor barrier systems comprising polyethylene (PE) membranes were assessed. comprised virgin PE, 100% new regenerated PE and multilayered PE. Membranes joined either with tape suited to the individual system or an adhesive base on butyl rubber. evaluated compared using standard laboratory tests. Chemical analytical techniques physicomechanical tests used. Mecha...

Journal: :Agronomy 2021

In 2012–2014, at the Research and Didactic Station of Department Horticulture Wroclaw University Environmental Life Sciences (51°19′06″ N, 17°03′49″ E), field studies were conducted to evaluate responses two sweet maize hybrids sowing dates (early optimum) five methods plant coverings—polyethylene film: perforated (PE), red (PER), green (PEG), polypropylene non-woven fabric (PP), control (C), w...

Journal: : 2021

The effect of nanofilles additives containing copper oxide nanoparticles stabilized by a polymer matrix high-pressure polyethylene obtained the mechanochemical method on features structure and properties metal-containing nanocomposites based isotactic polypropylene was studied using differential thermal (DTA) X-ray phase (XRD) analyzes. improvement strength, deformation rheological parameters, ...

Journal: :MATEC web of conferences 2022

A method was established to quickly determine the content of antioxidants in polyethylene by Fourier transform infrared spectroscopy. By analyzing FTIR spectra antioxidant Irganox 1076 and PE, characteristic peak PE determined be absorption at 1738cm-1. According standard curve antioxidant, had a good linear relationship with intensity its peak, regression coefficient equation 0.97363. The rela...

Journal: :The Science of the total environment 2004
Ming-Hui Zheng Peng-Yan Liu Ming-Jun Piao Wen-Bin Liu Xiao-Bai Xu

This paper investigated the effect of inorganic chlorine on the formation of PCDD/Fs from heating polyethylene (PE) in the presence of air. There was an increase in the formation of PCDD/Fs with an increasing amount of metal chlorides except NaCl, which was not observed to have any effects on the formation of PCDD/Fs without the presence of catalysts. Although the levels of PCDD/Fs formation in...

Journal: :Journal of materials science. Materials in medicine 2000
S N Nazhat R Joseph M Wang R Smith K E Tanner W Bonfield

Dynamic mechanical analysis (DMA) was used to characterize biomedical composites consisting of synthetic hydroxyapatite (HA) particulate reinforced polyethylene (PE). The effects of the HA volume fraction, temperature and HA particle on the storage modulus (E(I)) and damping (tan delta) were investigated. Increasing HA volume fractions increased E(I) and decreased tan delta. E(I) was found to b...

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