The thermoplastics used most frequently in injection molding are described below

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A polymer can be divided into three types: amorphous polymers; crystalline polymers; and noncrystalline polymers

 

 

A polymer can be divided into three types: amorphous polymers; crystalline polymers; and noncrystalline polymers.

They are made up of a molecular network that is three dimensional. Remelting Thermosets is impossible. Rather than melting when heated, they degrade.

 

 

Approximately 90% of all plastic used around the world is made of thermoplastics. Most thermoset plastics cannot be processed without causing significant degradation of their properties, but thermoplastics can.

Injection moldingInj for medical devices is commonly done with polyethylene, which is a common thermoplastic.

Due to its ability to be customized for a wide range of applications, polyethylene is often referred to as the "steel" of plastics. Polyethylene is a very versatile material that can be used in many different applications. Containers, bottles, and a variety of tubing applications are all commonly made of this material, which is susceptible to ultraviolet radiation and is flammable. This material has tensile strength of 4,000 pounds per square inch (pounds per square centimeter).


Furthermore, it is well-suited for manipulating after being further machined, painted, adhered, and sanded, amongst others. As a result, ABS is not very chemically resistant and should not be used in applications requiring UV resistance or electrical insulation, among other things. Plasticized ABS (ABS) has tensile strength of 5,500 pounds per square inch (psi). Thermoplastics that are commonly used in medical device injection molding

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