نتایج جستجو برای: synthetic textile fibers
تعداد نتایج: 221878 فیلتر نتایج به سال:
تکنولوژی نانو مطالعه مواد در سطح نانو است .این موضوع بسرعت در حال رشد می باشدکه به دلیل پتانسیل فوق العاده آن در ایجاد مواد جدیدی است که کاربردهای پیشرفته ای دارد . در این پروژه پلیمر طبیعی کیتوسان با استفاده از روش الکتروریسی به الیاف نانو تبدیل گردیده اند و تاثیر عوامل مختلف روی تولید و خواص (قطر) مورد ارزیابی قرار گرفته است. از کیتوسان , mw=1000kda)وdda=85% (به صورت محلول در اسید استیک 2% بر...
During the past 15 years NASA has taken the lead role in exploiting the benefits of textile reinforced composite materials for application to aircraft structures. The NASA Advanced Composites Technology (ACT) program was started in 1989 to develop composite primary structures for commercial transport airplanes with costs that are competitive with metal structures. As part of this program, sever...
Devices for the measurement of airborne fiber concentration currently existing on the market show significant disadvantages. Due to e.g. multi-step measurement principles or bulky design, existing devices are not capable to be used for specific applications. Knowledge of airborne fiber concentration is essential to determine operation conditions and air quality in e.g. textile mills, museums or...
UV irradiation was known as an important factor for skin cancer and also textile fibers and dyes degradation. UV rays have high energy photons degrading dyes and fibers causing fading and rotting of textiles when they are exposed to sunlight. The sun blocking properties of a textile are enhanced when a dye, pigment, delustrant, or UV absorber is present which absorbs UV radiation and releases h...
Background and Objective: Acid dyes are synthetic organic compounds with complicated chemical structures which their treatment are difficult and costly. Discharchig of these dyes into the environmen causes harmful effects on ecosystem and water quality. In this study efficiency investigation of photo-fenton process in removal of acid green 20 dye from wastewater of textile industries was assess...
Introduction: Textile wastewaters from dyeing and finishing processes are heavily polluted with dyes, textile auxiliaries and chemicals and have a broad range of pH, high COD concentration and suspended particles. In this study, the efficiency of color and turbidity removal from synthetic textile wastewater samples were investigated by combined process of coagulation/ flocculation and electron ...
There is a growing interest in fibers supporting optoelectrical properties for textile and wearable display applications. Solution-processed electroluminescent (EL) material systems can be continuously deposited onto fiber or yarn substrates in a roll-to-roll process, making it easy to scale manufacturing. It is important to have precise control over layer deposition to achieve uniform and reli...
Fibers comprise probably the most common form of trace evidence in forensic science today. They occur in perhaps one-quarter of all cases that involve trace evidence and a large majority of crime laboratories routinely characterize textile fibers. Although a great deal of research has been done on how to best characterize and compare fibers, relatively little time has been spent on determining ...
Silk is valued as one of the prominent protein textile fibers under animal category famous for distinct properties such lustrous appearance, comfort performance, remarkable shiny sheen and also towards bio-applications. In general, silk highly sensitive delicate; hence, there a need protection in order to protect from unwanted impacts chemicals, light insects. According this consideration, work...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید