Thermosetting Plastic.pptx

THIS PPT IS MADE UPON ABOUT THERMOSETTING PLASTIC.

1. Thermosetting plastic Date : 05-12-2023 This Photo by Unknown Author is licensed under CC BY-SA UTTAM SINGH BAGHEL B-TECH (ECE-Q) MANUFACTURING PROCESS

2. What is thermosetting plastic ? 2 Substances that cannot be reheated or remoulded when they heated or transformed once. They are difficult to recycle Uses of thermosetting plastics Rubbers Balloons Insulated electric wires erasers

3. 3 Properties of thermosetting plastics : Durability: thermosetting plastics are highly resistant to heat, chemicals& impact of force. Flame Resistance: Thermosetting plastics posses inherent flame resistance properties, which makes it suitable for fire- retardant applications. Insulation: These plastics are excellent for electrical insulators, which makes it ideal for electronic appliances & electric systems. Dimensional Stability: Due to the irreversible cross linking process, thermosetting plastics exhibit minimal shrinkage & deformation, ensuring dimensional stability.

4. Types of thermosetting plastics: Epoxy resin: It is a versatile thermosetting plastic widely used in adhesives & composites. Phenolic resin: They are renowned for their excellent heat resistance, low flammability which makes it a popular choice in automotive & construction industry. Melamine formaldehyde: It offers a exceptional heat resistance makes it a suitable choice for electrical switches, countertops & laminates 4

5. 5 HIGH STRENGTH Thermosetting plastic posses impressive strength due to their network of cross linked molecular bonds. HEAT RESISTANCE Thermosetting plastic can withstand high temperature without melting or deforming, ensuring stability in various environment. CHEMICAL RESISTANCE Thermosetting plastic exhibit excellent resistance to corrosive chemicals, making them suitable for harsh environment DESIGN FLEXIBILITY These materials can be moided into complex shapes, providing designers with greater freedom& flexibility in their applications. Advantages Of Thermosetting Plastics:

6. 6 IRREVERSIBLE Once cured, thermosetting plastics cannot be melted or reshaped, limiting their reusability and repairability. BRITTLENESS Some thermosetting plastics can be brittle, making them susceptible to cracking or breaking under certain impact forces. SLOW CURING The cross-linking process of thermosetting plastics often requires time and specific conditions, leading to longer production cycles. Disadvantage Of Thermosetting Plastics:

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