Classification of Single-layer PMMA.

Single-layer PMMA material, namely Polymethyl Methacrylate, is widely used in many fields due to its excellent physical and chemical properties. Single-layer PMMA can be classified according to different classification criteria. The following are some main classification methods:

First, classification by production process

Cast plate

Characteristics: High molecular weight, with excellent rigidity, strength and outstanding chemical resistance. It is suitable for processing large-sized signboards and plaques, and the softening process takes a relatively longer time.

Application: Due to its flexibility in color systems and surface texture effects, as well as a complete range of product specifications, it is suitable for various special purposes.

Extruded plate

Characteristics: Compared with cast plates, extruded plates have a lower molecular weight and slightly weaker mechanical properties, but higher flexibility. It is conducive to bending and thermoforming processing, and the softening time is relatively short. When dealing with larger-sized plates, it is conducive to various rapid vacuum forming.

Application: Due to its characteristic of large-scale automated production, extruded sheets may be relatively fixed in terms of color and specification, making them suitable for applications that require rapid processing and large-scale production.

Second, classification by light transmittance

Transparent board: It features high transparency, with a light transmittance of over 92%, and is the most common type of PMMA board.

Semi-transparent plates: including dyed transparent plates, etc., with a light transmittance between that of transparent plates and opaque plates.

Opaque boards: such as opalescent boards, etc., have poor light transmission, but they have a unique visual effect.

Third, classification by performance

Impact-resistant plate: After special processing and treatment, it has higher impact resistance and is suitable for occasions that need to withstand external force impact.

Uv-resistant board: It is added with UV-resistant agents, which can effectively resist the erosion of ultraviolet rays and maintain the transparency and color of the material for long-term use.

Flame-retardant board: It has flame-retardant properties and can prevent the spread of fire to a certain extent, enhancing safety.

High-wear-resistant plate: The surface has undergone special treatment, offering higher wear resistance and is suitable for applications that require frequent friction.

Fourth, classify by use

Building boards: such as skylights, doors and Windows, etc., taking advantage of the high transparency and weather resistance of PMMA.

Advertising boards: such as light boxes, signs, etc., take advantage of the easy processability and good visual effect of PMMA.

Electronic boards: such as display screens, touch screens, etc., utilize the high transparency and insulation performance of PMMA.

Medical boards: such as dental restoration materials, medical devices, etc., take advantage of PMMA's non-toxicity, environmental friendliness and easy processability.

Fifth, other special classifications

Recycled material board: It is made by re-polymerizing recycled acrylic scraps after thermal degradation. Although the cost is relatively low, its performance may be slightly inferior to that of new material boards.

In conclusion, single-layer PMMA materials have multiple classification methods, and each classification method has its specific application scenarios and performance characteristics. When choosing single-layer PMMA materials, a comprehensive consideration should be made based on specific requirements and conditions.