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[Chemical Knowledge]：What material is PMMA?-A detailed interpretation

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Perhaps not everyone can recognize this term at a glance, but what we are familiar with as "acrylic" is a transparent material made of PMMA. Today, we will explain in detail the basic concepts, advantages and disadvantages of this material, and the scope of application to help readers better understand this material and its characteristics and value.

1. What is PMMA?

PMMA full name is polymethyl methacrylate, is a colorless transparent thermoplastic resin. It has excellent transparency and weather resistance, good chemical stability, high temperature resistance, excellent cutting performance and unique impact resistance and other characteristics, so it is widely used in construction, furniture, lighting, billboards, electronic products, utensils and other fields. The advantages and disadvantages of

2. PMMA

① Advantages

1. Good transparency: PMMA is a highly transparent material and has relatively low light absorption, so it can reduce the loss of light energy. In addition, it also has good UV resistance and weather resistance, even after a long time of water and sunlight and other more complex environment, can still maintain good transparency.

2. High temperature resistance: The glass transition temperature of PMMA is as high as 100 ℃, so it can be used in high temperature environment without deformation and expansion due to temperature increase.

3. High surface hardness: PMMA has high surface hardness, which is not easy to deform and clean cut during mechanical processing.

4. Good machinability: PMMA can be processed by simple processes such as cutting and drilling.

5. Good processing and moldability: PMMA is easy to injection molding, and has the advantages of fast molding, short molding cycle, high product precision and low cost.

② Disadvantages

1. Vulnerable to scratches: PMMA is more susceptible to scratches than ordinary materials, so it needs attention in daily use.

2. Weak heat resistance: PMMA has weak heat resistance at high temperatures relative to other materials, and phenomena such as coloring will occur.

3. the scope of application of PMMA

PMMA as an excellent transparent material, has a wide range of applications in the field of manufacturing, such as:

1, architecture: PMMA can make all kinds of windows, handrails, skylights, etc., with high transparency, UV resistance, wind resistance and other advantages.

2. Electronic products: PMMA can be used as a material for screens such as TVs and monitors, and has the characteristics of high transparency and good toughness.

3. Billboard: PMMA is one of the substrates of billboards. After simple processing, various vertical and hanging advertisements can be produced according to needs.

4, furniture: PMMA can be used for the production of furniture, such as tea table, including