INTRODUCTION It is proposed that to satisfy a growing percentage of the population that requires greater than thirty-year survivability of load-bearing bone replacement devices [1], a concept shift, from emphasis on replacement of tissues to regeneration of tissues, is required [2]. Based on the bioactivity of hydroxyapatite (HA) and the excellent mechanical and biocompatible performance of Pol...

used pet bottles disposal is an unsolved environmental problem, and there are many efforts for finding an applicable solution for it. many researches have showed that the degradation rate of the polymers increase with the smaller size of fibers. this work was carried out to convert used pet bottles into nanofibers by melt-electrospinning method. uncolored, washed and chipped pet bottles and the...

Microfibrillar composites (MFCs) from recycled high density polyethylene (R-HDPE)/recycled poly (ethylene terephthalate) (R-PET) (75/25 w/w) were made through reactive extrusion and post-extrusion strand stretching. The resultant MFCs could be processed at HDPE processing temperature. The compatibility between microfibers and R-HDPE matrix was improved through compatibilizers. Of the three comp...

Tissue engineering is an emerging field in biomedicine, holding enormous promise for regenerative medicine. Scaffolds, within which cells proliferate, are a controlling factor in tissue engineering applications. Upon fabrication, tissue scaffolds must undergo appropriate sterilization to eliminate contaminants. Current sterilization methods are either costly, time consuming, or ineffective. In ...

Annually, large amounts of waste Polyethylene Terephthalate (PET) bottles are discarded worldwide, although their properties can be useful in engineering works, such as soil improvement. Thus, the influence PET fibers on sandy mechanical behavior was assessed present work. Consolidated-drained triaxial tests were performed using a 0.5% addition 1.4 (SF-1) and 3.3 dtex (SF-2). Afterward, plate l...

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...

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...

Abstract Polyethylene terephthalate is a synthetic material known as PET. PET strapping bands commonly used in all industries for packaging and bundling. The excessive use of this has led to the pollution urban environment, which necessitated search effective solutions dispose waste. treatment reuse these materials among best that contribute reducing environmental on one hand enabling obtaining...

At ambient temperature, concrete exhibits excellent mechanical properties. However, understanding the behavior of under high-temperature conditions is crucial, especially for civil engineering applications during fire incidents. The growing use plastic-based products has led to a significant increase in polymer waste, posing environmental challenges. valorization this plastic waste form fibers ...

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...