Advantages And Limitations Associated With Thermoplastics
Posted by Michael Luis on February 23rd, 2023
The term” shielding of ionizing radiation” indicates the fact that some material among the radiation and device will absorb the radiation. Lead blocks or sheets are widely been used as X-ray shields. The main benefit of the lead shield is its compactness because of its higher density.
It is significant to understand that as the high-energy photon passes through a material, their energy gets lowered which is termed attenuation. The theory of attenuation is valid for X-rays and gamma rays. This will result in the fact that higher-energy photons travel through tissue more easily compared to low-energy photons. This effect is much related to the concept of the photoelectric effect. There is a need to understand that X-ray shielding is more complicated than alpha or beta radiation shielding.
Features of thermoplastics
It is demonstrated that some types of thermoplastic are strong, expensive, and are used in place of metal; however, others are generally used in daily use products. They are easier to get mold when they are hot and can turn to liquid at high temperatures.
The most common and popular methods of processing thermoplastic are extrusion, thermoforming, and injection molding. The thermoplastic can act as a rubber or even be strong according to its chemistry. Additionally, they are higher recyclable and provide aesthetically-superior finishes.
The thermoplastic can melt or soften when they are heated and return to solid form when gets cooled. This process is repeatable and make sure to remember that it doesn’t alter the chemical nature of the polymer. The process of heating offers the thermal energy that facilitates the long polymer chain to more freely and forms a new shape. The process of cooling lowers the molecule motion to the level where such a chain cannot move freely.
Engineering thermoplastics are used extensively in automotive, industrial, electronic, and medical applications. There is a need to understand that engineering thermoplastic doesn’t relate to plastic that resolves the engineering problem; however, it refers to a family of thermoplastics that incorporates higher performance in comparison to commodity thermoplastics. They are specifically designed for more demanding applications because of their improved properties like mechanical strength and also show higher resistance to heat, impact, and chemicals.
Like other thermoplastics, engineered thermoplastics are made from organic materials. However, innovative formulas and techniques have been introduced to lower the dance because they are quite popular in transportation applications. These new formulas are capable to maintain their desired electrical and mechanical properties while becoming fire-resistant.
Limitations associated with thermoplastics
However, there are several advantages of thermoplastics, there are some limitations associated with thermoplastics
• Due to their low melting point compared to other, thermoplastics are inappropriate for use in some high-temperature applications.
• Some thermoplastics are susceptible to creep when they are exposed to long-term stress loads.
• Thermoplastic seems more expensive compared to thermoset materials.
Thermoplastics, except polyimide and polyester film, have gained immense popularity recently, specifically for microelectronic structures. It can therefore be concluded that advanced thermoplastics can now offer high melting points and improved stability which early-generation polymers could not provide.
Michael Luis has an author, Who has been vehemently writing industrial Mechanism related articles for about 5years. He enjoys writing stuffs on X-ray shielding, engineered thermoplastics and Radiation shielding related for Ecomass Technologies.