Laboratory of Polymers Chemistry

Laboratory of Polymers Chemistry

The Polymers Chemistry Laboratory of the Polymer Engineering Faculty was established in 2016. With the goals of educational and research activities, this collection is responsive to undergraduate and graduate students and has facilities such as a centrifuge with 12000 revolutions, hood, oven, heater stirrer, 4 zero laboratory scale, ultrasonic bath and probe, normal oven, UV-UV incubator box. This group is proud to cooperate with industrial centers and academic colleagues if needed.

  • Analysis of Double Beam UV-vis Spectrophotometer

A spectrophotometer or visible and ultraviolet spectrometer or UV-vis Spectrometer, which is sometimes called UV, is a device for measuring the amount of a substance based on the amount of electromagnetic absorption of that substance. Most of the substances analyzed in Spect are in liquid form. Light irradiation is performed in the visible spectrophotometer using a tungsten lamp and in the UV device using a deuterium lamp. The spectrophotometer device is used for qualitative and quantitative measurement of a wide range of substances in various scientific and research fields such as chemistry, biochemistry, pharmaceuticals, materials, and the environment.

  • Advantages of UV/VIS testing:

  • It has good greenness and accuracy of 1-3%.

  • It has an easy operator and collecting and interpreting the results is not complicated.

  • It is used for both quantitative and qualitative analysis of organic and inorganic species.

  • It is not always a good method for qualitative analysis because, usually most species do not have minimum (Minima) or maximum (Maxima) absorption.

  • If standard samples are available, it is also possible to analyze solid samples with this method.

  • important points:

  • The sample should be in the form of a clear solution because opaque solutions cause light scattering.

  • The measurement is always done at the maximum wavelength (λmax)  to obtain the highest sensitivity, the lowest detection limit, and the lowest error.

  • Analysis services are performed for the received samples, sample preparation must be done by the applicant himself.

  • The applicant undertakes that the sample is not radioactive or explosive, otherwise,  any personal and financial damage will be the responsibility of the applicant.

  • The analysis method of the device is Transmittance Method and non-transparent bulk samples are not acceptable.

The analysis is done in both face-to-face and non-face-to-face ways.

It is allowed to use the Labzent laboratory network grant, but to use the grant if the grant is not transferred from the teacher to the student if the deliverer is not the owner of the grant, the consent of the owner of the grant must be analyzed by one of the methods 1) confirmation by sending an email 2) confirmation through the office landline or 3) written confirmation to the laboratory official, otherwise the cost of the analysis will be calculated without considering the grant.

Samples must be delivered separately and labeled in closed containers. If an explanation for the samples is necessary, the operator must be informed in writing or verbally.

If the samples have back and front or top and bottom, they must be marked.

The storage and safety conditions of the samples must be informed to the operator through the application form.

If there is a Material Safety Data Sheet (MSDS), it should be sent in each of the cases, otherwise, the necessary safety measures should be stated when working with the desired material.

  • Centrifuge

Centrifuge, which is also called laboratory centrifuge, is a part of laboratory equipment, one of the most important and widely used devices in all types of medical, biochemistry, clinical, and research laboratories, physics, microbiology, cellular, blood group determination, hematology, tissue science, biology, and the pharmaceutical, polymer, food, beverage, etc. industry, hence it is generally called a laboratory centrifuge. Laboratory centrifuges have a motor, act based on centrifugal force, and rotate the samples around a fixed axis at a high speed (about 1000 to 20000 rpm) to separate and precipitate the constituents of Biological, and chemical materials, purification of cells, proteins, nucleic acids, etc. Two important performance parameters of centrifuge motors are RPM (Revolutions Per Minute) and RCF (Relative Centrifugal Force), which is also represented by G. RCF represents the amount of force applied by the centrifuge to the samples, which is also called rotational gravitational force and has a direct relationship with the radius of the device. Centrifuge devices are highly accurate, they are usually designed with a refrigerator, they have various uses, they are often tabletop and they are made in different sizes.

  • Ultrasonic

An ultrasonic device can produce ultrasonic waves and is used in a laboratory such as chemistry. Sound waves are produced by the vibration of an object. When the object vibrates, the air molecules around it vibrate, the vibration of the molecules is successively transmitted to each other and finally it is heard.

Ultrasound is a sound or frequency that the human ear does not have and cannot hear. Many applications are considered for ultrasonic waves. The ultrasonic device can produce these waves. Of course, ultrasonic frequencies cannot be heard. Sound waves can be measured in Hertz. These waves have many applications. Ultrasound or ultrasonic waves in general can cause two actions: either it creates changes such as a change in performing a reaction, or it acts such as identification. For example, it is used in a device like ultrasound to identify internal organs. Applications such as use in submarines, and ultrasonic devices are used in laboratories, especially in chemical and cleaning laboratories. Ultrasonic waves have properties such as refraction, reflection, or passing through an environment. These waves can be created in three ways: mechanical, electrical, and magnetic.

  • Application of ultrasonic device:

  • One of the laboratory equipment is the ultrasonic device, the basis of which is the use of ultrasound waves. For example, ultrasonic washing is one of its most important applications. A part of the device is placed in the liquid in the ultrasonic device, and by turning on the device and creating vibration, the impurities are slowly removed from the part. This device is used to connect dissimilar parts, especially plastic and metal. The heat created in this device is created by using ultrasonic waves the vibration movement with a constant frequency can create heat, which causes the connection. will be One of the applications of the ultrasonic device is the homogenization of solutions, which is widely used in the chemical laboratory. When a chemical reaction is in progress, it is used to homogenize solutions such as nano or polymer compounds. Ultrasonic waves can homogenize liquid or solid particles.

  • The ultrasonic device has industrial and non-industrial sensors, which are used according to the frequency that the device must produce.

  • The frequency that industrial ultrasonics produces is in the range of megahertz, and non-industrial ones are in the range of 40 kHz. Each of these sensors has a transmitter and a receiver that sends waves from the transmitter to the receiver and provides information on the speed and depth of the vibrations. Various solutions are used for the ultrasonic bath. For example, if this bathroom is used for cleaning, a variety of acidic and alkaline solutions are used, twice distilled water is also used in this bathroom, and enzyme solutions are used to remove impurities.

  • This device, which works with electric current and uses a solution, needs special care. In case of any connection or failure, it should be shown to a specialist for repair. The solution inside the bath should also be drained so that the device is not damaged due to the long time the solution remains.

  • Furnace

The FM4P smart furnace is a very durable laboratory furnace. The use of a special type of ceramic insulation and the unique design of the installation of the element has caused problems such as frequent burning of the element and excessive heat of the external body to disappear. The unique design, the use of high-quality raw materials, and the advanced production process have led to this device always being a tough competitor for European products.

  • General specifications:

  • Unique ceramic elements prevent the element from burning and protect against metal vapors

  • It has 2 SEGMENT 7 displays for simultaneous display of temperature and time for user convenience.

  • It has an air discharge valve to release vapors and gases inside the chamber

  • The body is made of oiled sheet with electrostatic powder paint

  • Alarm warning of disconnection of element and sensor

  • Temperature uniformity in all dimensions of the chamber

  • Smart 999-hour timer

  • Equipped with a central fault finder

  • No use of fasteners

  • High shock resistance