نتایج جستجو برای: polyethylene terephtalat pet fibers

تعداد نتایج: 151048  

Journal: :International journal of clinical and experimental medicine 2014
Shao-Bin Yu Rong-Hua Yang Zhong-Nan Zuo Qi-Rong Dong

Polyethylene terephthalate LARS ligament were the remnant of LARS ligament used for repairing posterior cruciate ligament obtained from operation. We want to study histological characteristics and ultrastructure of polyethylene terephthalate LARS ligament after the reconstruction of anterior cruciate ligament in rabbits. Therefore, we replaced the original ACL with polyethylene terephthalate LA...

Journal: :Acta biomaterialia 2005
Qijin Lu Agneta Simionescu Naren Vyavahare

A novel type of capillary channel fibers (CCFs) containing eight open grooves with depth of 5-15 microm and width of 10 microm were tested for their use in tissue engineering as matrices that provide topographical guidance to neo-tissue development. The matrices fabricated from fibers of poly(l-lactic acid) (PLA) and polyethylene terephthalate (PET) were seeded with rat skin fibroblasts (RSFs) ...

Journal: :Inventions 2022

We demonstrate a cost-effective, highly reliable/stable and environmentally friendly approach for the patterned colouring of commercial transparent polyethylene terephthalate (PET). show that different colour patterns (transparent, white/translucent, complete white/silver combinations these three colours) can be realised in PET strips upon varying speed during continuous stretching. The conditi...

Journal: :SusMat 2023

The indiscriminate utilization of nondegradable polyethylene terephthalate (PET)-based products has triggered serious environmental pollution that to be resolved vigorously. A simple synthesis N-doped carbon nanotubes from recycled PET (NCNTsr-PET) was developed by a nitric acid-assisted hydrothermal method. Experimental results and theoretical calculations show the intrinsic defects in CNTsr-P...

F Babaei Semiromi, H Bahmanpour, Z Bozorgmanesh,

Background & objectives: Polyethylene terephthalate (PET) containers have many applications in the food industry. Although there are numerous advantages for PET it also has some disadvantages, one of which is the migration of materials from the container into the material inside. In this study, the effect of two factors of storage time and temperature on the migration rate was evaluated and mod...

Journal: :Polymer 2021

This article provides an overview of strain-induced solid mesophases in polymer fibers, melt-spun from amorphous (polycarbonate, cyclo-olefin polymer, copolyamide, polyethylene terephthalate glycol) and semi-crystalline materials (polyethylene terephthalate, poly-3-hydroxybutyrate). The discussed are made stretched, conformationally disordered macromolecules that highly oriented along the fiber...

2015
Carlo Lucchetti Gabriele De Simone Gianfranco Galli Paola Tuccimei

Polyethylene terephthalate (PET) and polylactic acid (PLA) bottles were tested to evaluate radon loss from water during 15 days of storage. PET bottles (lower surface/volume-ratio vials) lost 0.4e7.1% of initial radon, whereas PLA bottles lost 3.7% of it. PET bottles with volume of 0.5 L, lower surface/weight ratio, and hence higher thickness display proportionally reduced radon loss. Correctio...

2012
A. Carné Sánchez S. R. Collinson

The glycolysis of postconsumer polyethylene terephthalate (PET) waste was evaluated with catalysts of zinc acetate, zinc stearate and zinc sulfate, showing that zinc acetate was the most soluble and effective. The chemical recycling by solvolysis of polylactic acid (PLA) and PET waste in either methanol or ethanol was investigated. Zinc acetate as a catalyst was found to be necessary to yield a...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2014
G E Morris J C Bridge O M I Eltboli M P Lewis A J Knox J W Aylott C E Brightling A M Ghaemmaghami F R Rose

Human airway smooth muscle (HASM) contraction plays a central role in regulating airway resistance in both healthy and asthmatic bronchioles. In vitro studies that investigate the intricate mechanisms that regulate this contractile process are predominantly conducted on tissue culture plastic, a rigid, 2D geometry, unlike the 3D microenvironment smooth muscle cells are exposed to in situ. It is...

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