نتایج جستجو برای: waste polymers

تعداد نتایج: 151822  

Journal: :international journal of nano dimension 0
elaheh esmaeili department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. fatemeh deymeh department of chemical engineering, birjand university of technology, birjand, p.o. box 97175/569-212, iran. seyyed amin rounaghi department of materials engineering, birjand university of technology, birjand, p.o. box 97175/569-295, iran.

recently, the demands for the production of many different types of plastic wastes are greatly growing that subsequently, lead to the serious challenges in environmental considerations. since, these materials are rarely resolved by microorganisms, hence, their recycling to the useful materials is crucial. in the present study, we used a solution electrospinning technique to synthesize nano/micr...

2017
Alessandro Sorrenti Jorge Leira-Iglesias Akihiro Sato Thomas M Hermans

Living systems use fuel-driven supramolecular polymers such as actin to control important cell functions. Fuel molecules like ATP are used to control when and where such polymers should assemble and disassemble. The cell supplies fresh ATP to the cytosol and removes waste products to sustain steady states. Artificial fuel-driven polymers have been developed recently, but keeping them in sustain...

2014
Esmaeil Ahmadinia

Polymer-modified bitumen is used to combat different pavement distresses and to increase the life span of pavement. Unmodified bitumen cannot perform better with the range extreme minimum and maximum pavement temperatures. The polymers commonly used to modify the bitumen are ethylene vinyl acetate (EVA) styrene butadiene styrene (SBS). The aim this study to compare the performance of EVA modifi...

2016
Ewa Kolasińska Piotr Kolasiński

This paper reviews materials for thermoelectric waste heat recovery, and discusses selected industrial and distributed waste heat sources as well as recovery methods that are currently applied. Thermoelectric properties, especially electrical conductivity, thermopower, thermal conductivity and the thermoelectric figures of merit, are considered when evaluating thermoelectric materials for waste...

Journal: :علوم و تکنولوژی پلیمر 0
یحیی رسول زاده سید باقر مرتضوی علی اکبر یوسفی علی خوانین انوشیروان کاظم نژاد لیلی

the neat bitumen, an oil refining by-product, has its own inherent weakness under long-time loading at low and high temperatures. these performance limitations of neat bitumen have led researchers to modify its physical andmechanical properties. according to several studies, polymers can be used to modify the properties of bitumen. due to much lower production costs and aiming to reduce environ...

2010
Katarzyna Leja Grażyna Lewandowicz

Synthetic polymers are important in many branches of industry, for example in the packaging industry. However, they have an undesirable influence on the environment and cause problems with waste deposition and utilization. Thus, there is a tendency to substitute such polymers with polymers that undergo biodegradable processes. Increasing interest in applying polymers based on natural materials ...

2016
E Kolasińska P Kolasiński B Mazurek

Many of the processes in the industry, agriculture and microscale systems are associated with the waste heat generation, which often may be a menace or lower the efficiency of the processes. The thermoelectric cooling is becoming increasingly popular and gives the possibility to convert waste heat into electricity. The current thermoelectric cooling solutions are based on alloy materials. Howev...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
John Carey

The waste that arrives at MBA Polymers’ big blue factory in Worksop, in England’s industrial heartland, is a dirty, smelly mess. Fresh from a metals recycler that has extracted hunks of steel from the crushed remains of cars and other trash, it contains many types of plastic jumbled in with carpeting, rubber, glues, bits of metal and glass, and even the occasional dead animal. Inside the cacoph...

2017
Sara Fernandes Liliana Costa Hugo Silva Joel Oliveira

The increasing environmental concern about waste materials and the necessity of improving the performance of asphalt mixtures prompted the study of incorporating different waste materials in conventional bitumen. The reuse of waste materials can present benefits at an environmental and economic level, and some wastes can be used to improve the pavement performance. Thus, the purpose of this stu...

2015
Manika Sharma Pratibha Sharma Anima Sharma

Synthetic polymers are widely used both in food or commercial industry. Plastic, one of its products is known to be expanding with changing lifestyles and increasing population. However, it causes deleterious effects on the environment due to its non degrading nature. Burning of this plastic waste and burying of the plastics releases harmful toxic material which is a major pollutant in environm...

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