نتایج جستجو برای: recycled materials

تعداد نتایج: 444719  

Journal: :Journal of Polymers and The Environment 2021

Lignocellulosic composites are biodegradable, have low cost, neutrality to CO2 emission, easily processed, available and pause no health risks, therefore these materials been the subject of an increase interest. In addition, there is a continuous demand obtained from renewable resources waste recycling. that sense, in this study polyurethane (PU) residues were mixed with cork pine (up 70 wt/wt)...

2017
Liliana Costa Sara Fernandes Hugo Silva Joel Oliveira

The aim of this study is evaluating the interaction between several base pen grade asphalt binders (35/50, 50/70, 70/100, 160/220) and two different recycled plastics (EVA and HDPE), for a set of new polymer modified binders produced with different amounts of both recycled plastics. After analysing the results obtained for the several polymer modified binders evaluated in this study, including ...

By increasing the demolition of old concrete structures and the interest of civil industries to consume cheaper materials, using Recycled Concrete Aggregate (RCA) can cause environmental protection and decrease the construction costs. On the other hand, the high potential of Recycled Aggregate Concrete (RAC) in concrete industry was established by extensive experimental researches were performe...

Journal: :Experimental animals 2007
Kohei Kawakami Shunsuke Shimosaki Miki Tongu Yuta Kobayashi Toru Nabika Masato Nomura Takaya Yamada

Bedding and nesting materials can improve the health and environmental welfare of laboratory mice. This study was carried out to examine which items are actually preferred by mice. Two series of studies were performed on four types of floor-covering materials (Wood-shavings (Clean-chip), Cloth (Agrebe), Recycled-paper (Paper-clean), Paper (Care-feeaz), and on four types of nesting materials (Re...

Journal: :Acta scientiarum polonorum. Technologia alimentaria 2017
Reza Ahmadkhaniha Noushin Rastkari

BACKGROUND The safe use of recycled paper and cardboard material for food packaging applications is     an important area of investigation. Therefore, the aim of this study was to determine which hazardous chemi- cal pollutants were found in paper and cardboard samples used for pastry packaging, and to measure the migration of pollutants over time into the pastries. METHODS In this study, the...

Recent scientific concerns to achieve sustainability in construction have suggested the implementation of using recycled aggregate in concrete because it has the potential to reduce the demand for extraction of natural raw materials and decrease the volume of wastes landfilled. In this respect, this study aims to investigate the suitability of using ceramic tile (CT) and ceramic sanitary (CS) w...

Journal: :OR Insight 2010
Majid Azizi Mohammad Modarres

The objective of this research is to design an approach for selecting appropriate raw materials for facial tissues in Iran. There are three possibilities to maintain raw materials: (1) imported virgin pulp; (2) bagasse (sugar cane residue) plus some imported raw materials; and (3) recycled paper plus some imported raw materials. Owing to the shortage of raw materials as well as the high rate of...

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