نتایج جستجو برای: waste hdpe

تعداد نتایج: 82894  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1378

پیوند دادن مالئیک انیدرید (ma) به پلی الفین ها و الاستومرها در حضور شروع کننده ها پراکسیدی به عنوان واکنشی ناهمگن تلقی می شود. پلی الفین ها و الاستومرهای اصلاح شده توسط گروههای قطبی موجود در زنجیره آنها به منظور بالا بردن خواص فیزیکی شیمیایی پلیمرهای اولیه تهیه می شوند و افزایش چسبندگی، رنگ پذیری، شبکه ای شدن و دیگر اصلاحات شیمیایی را به دنبال دارند. در تحقیق حاضر، پیوند ma روی پلی اتیلن سنگین ...

Journal: :Ceylon Journal of Science 2023

The global demand for plastic is increasing year by due to its indispensable uses and excellent properties. Plastic wastes persist many years their slow deterioration cause severe environmental problems. Therefore, there a growing focus worldwide on waste disposal methods overcome adverse impacts. As plastics are petroleum-based materials, the pyrolysis of fuel oil, gases, char, has more concer...

2011
Ashok Rathod

The freshly harvested Carambola (Averrhoa Carambola L.) fruits were packed in different packaging matrials like high density polyethylene (HDPE) with a 1% and 2% ventilation with a pretreatment 2 % CaCl2 stored at ambient and also in refrigerated conditions the temperature was in the range of 18.0 to 21.0 0 C and Relative humidity of about 86 per cent. To evaluate the storage condition and pret...

2011
Yong Zhu Zhiwei Wang

Numerical simulation of migration of chemical substances from HDPE into foods(simulants)is performed based on the finite element method(FEM). The results show that concentration of migrants in foods at equilibrium increases with the increase of its initial concentration in packaging. Diffusivity of migrants is key to migration dynamics. Partition coefficient represents ration of concentration i...

2013
Bhupendra Singh

HDPE monofilaments were photostabilized with hindered amine l ight s tabi l izers (HALS) and UV absorbers at varying stabilizer concentrations. The filaments were assessed for UV resistance by exposure to simulated outdoor weathering conditions in artificial weathering apparatus and testing the exposed samples at regular intervals for retained tensile properties. Films of HDPE of varying thickn...

Journal: :Energy Conversion and Management 2021

To understand the correlation between plastic structure and products, possible reaction mechanisms, pyrolysis–catalysis of different types waste plastics was investigated in presence an Fe/Al2O3 catalyst. Polypropylene (PP), high-density polyethylene (HDPE), low-density (LDPE), high-impact polystyrene (HIPS), general-purpose (GPPS) were used as feedstock. The results showed that PP, HDPE, LDPE ...

Journal: :Brazilian Journal of Development 2023

The recycling process is the best way to manage waste polymers. From an economic standpoint, more investigation needed of whole enhance competitiveness in these systems. A first step improved interaction and interfacial adhesion blends. Polyethylene (PE) polyethylene terephthalate (PET) are incompatible polymers, so their blends general have poor properties. Compatibilization thus a necessary o...

1996
Terry H. Brown

This project was developed to provide design criteria for landfill disposal sites used for sludges such as those generated using the Clean Coal Technologies (CCT) tested at the Public Service Company of Colorado's Arapahoe Power Plant. The CCT wastes used were produced at the Arapahoe Plant Unit No.4 that was equipped with the integrated dry NOx/SO2 emissions control system installed under the ...

Journal: :Journal of Cleaner Production 2021

Plastic recycling involves a range of potential environmental benefits, from curbing landfill and incineration rates to the reduction greenhouse gas emissions. However, main challenge is find applications where recycled plastic can successfully provide same functionality as replaced virgin plastic. Particularly, incorporation high-density polyethylene (HDPE) (PE) pipe grade resins great that no...

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