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High temperature polymer screws, nuts, bolts and washers, are fasteners that are made from polymers that are able to withstand high temperatures (200°C+). They are used in a variety of applications where high temperatures are a concern, such as in the aerospace, automotive, and energy industries.
There are a variety of high temperature polymers that can be used to make screws, nuts, bolts, washers, and fasteners, including polyimide, polyphenylene sulfide (PPS), and polyetheretherketone (PEEK). These polymers are known for their excellent thermal stability, which allows them to maintain their mechanical properties at high temperatures.
Polyimide is a type of polymer that is known for its excellent thermal stability and high temperature resistance. Polyimide has a high decomposition temperature, which is the temperature at which a material begins to break down or decompose. The decomposition temperature of polyimide is typically in the range of 300-400°C, depending on the specific type of polyimide and the processing conditions.
In addition to its high decomposition temperature, polyimide also has a low coefficient of thermal expansion, which is a measure of a material's expansion or contraction in response to changes in temperature. The low coefficient of thermal expansion of polyimide means that it expands and contracts very little with changes in temperature, making it suitable for use in applications where dimensional stability is important.
The excellent thermal stability and high temperature resistance of polyimide make it an ideal material for use in a wide range of high temperature applications, including in the aerospace, automotive, and electronics industries. It is often used as a structural material in these applications, as it can withstand high temperatures and maintain its mechanical properties at elevated temperatures.
In addition to its use as a structural material, polyimide is also used in a variety of other high temperature applications, such as in the manufacturing of electrical and electronic components, and in the production of adhesives and coatings.
Polyetheretherketone (PEEK) is a type of polymer that is known for its excellent mechanical and thermal properties, including its high temperature resistance. PEEK is a semi-crystalline polymer that is made from monomers called ketones. It has a high melting temperature, with a melting point in the range of 200-260°C, depending on the specific grade of PEEK and the processing conditions.
In addition to its high melting temperature, PEEK also has a low coefficient of thermal expansion, which is a measure of a material's expansion or contraction in response to changes in temperature. The low coefficient of thermal expansion of PEEK means that it expands and contracts very little with changes in temperature, making it suitable for use in applications where dimensional stability is important.
The high temperature resistance of PEEK makes it an ideal material for use in a wide range of high temperature applications, including in the aerospace, automotive, and electronics industries. It is often used as a structural material in these applications, as it can withstand high temperatures and maintain its mechanical properties at elevated temperatures.
Polyphenylene sulfide (PPS) is a type of polymer that is known for its excellent thermal stability and high temperature resistance. PPS is a semi-crystalline polymer that is made from monomers called phenylenes and sulfides. It has a high melting temperature, with a melting point in the range of 285-310°C, depending on the specific grade of PPS and the processing conditions.
In addition to its high melting temperature, PPS also has a low coefficient of thermal expansion, which is a measure of a material's expansion or contraction in response to changes in temperature. The low coefficient of thermal expansion of PPS means that it expands and contracts very little with changes in temperature, making it suitable for use in applications where dimensional stability is important.
PPS is 50% glass fibre reinforced, making it one of the highest tensile strength, temperature resistant polymers available.
Polymer fasteners are used in a wide range of applications where exposure to high temperatures could be a problem, and they offer several benefits over traditional metal fasteners.
Some examples of high temperature polymer fastener applications include:
Aerospace industry: Polymer fasteners are often used in the aerospace industry as a lightweight and corrosion-resistant alternative to metal fasteners. They can withstand high temperatures and maintain their mechanical properties at elevated temperatures, making them suitable for use in structural applications.
Automotive industry: Polymer fasteners are also used in the automotive industry, particularly in engine and exhaust system components where high temperatures are encountered. They can withstand high temperatures and maintain their mechanical properties, making them suitable for use in these applications.
Electronics industry: Polymer fasteners are used in the electronics industry to secure components in place and provide electrical insulation. They can withstand high temperatures and maintain their electrical insulation properties, making them suitable for use in these applications.
Adhesives and coatings: Polymer fasteners are also used in the production of adhesives and coatings, as they can withstand high temperatures and maintain their adhesive properties.
High temperature polymer fasteners are a useful tool in a wide range of applications where high temperatures are encountered. They offer several benefits over traditional metal fasteners, including their lightweight and corrosion-resistant properties, as well as their ability to withstand high temperatures and maintain their mechanical and electrical properties.