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ASTM D3935 - Polycarbonate (PC) Material Classification and Specifications

ASTM D3935 - Standard Classification System and Basis for Specification for Polycarbonate (PC) Unfilled and Reinforced Material:

The ASTM D3935 standard is a classification system and basis for specification for unfilled and reinforced polycarbonate (PC) materials. It pertains to polycarbonate and its copolymers, which are widely used materials in the manufacturing sector due to their unique physical properties.

Polycarbonate is a versatile and highly durable material, known for its high impact resistance, transparency, and ability to be molded into various shapes. It has extensive applications in industries such as automotive, electronics, and construction. The ASTM D3935 standard was developed to classify polycarbonate materials, both unfilled and reinforced, with the aim of providing a universal understanding of these materials and their compositions.

According to the ASTM D3935 standard, these materials are suitable for various manufacturing processes, including injection molding, blow molding, and extrusion. Some compositions may also be used in compression molding or solution application. The classification system also recognizes the potential use of recycled materials, provided they meet all the specified requirements within the standard.

The classification system organizes polycarbonate materials into different groups based on their composition. These groups are further divided into classes, which are then further divided into grades. This comprehensive classification system facilitates the identification and specification of the specific type of polycarbonate material required for a particular application for manufacturers, buyers, and other stakeholders.

The standard also specifies various tests to be conducted to determine the properties of polycarbonate materials, including Izod impact strength, flexural modulus, tensile strength, and deflection temperature. These tests help ensure that the materials meet the necessary performance requirements for specific applications.

It is important to note that this classification system is intended to identify the types of plastic materials used in the fabrication of finished items or parts. However, it is not intended to guide material selection. Material selection should be made by experts in the plastic field, considering factors such as part design requirements, the environment in which it will be used, the fabrication process, cost considerations, and the inherent properties of the material.

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