What are the properties of PMMA?
What are the properties of PMMA?
The main characteristics of PMMA are the following:
- Outstanding optical properties.
- Transparency and gloss finish.
- Rigidity and dimensional stability.
- Hardness and resistance to scratching.
- Excellent resistance to sun rays (ultraviolet radiation) and weathering aging.
What are the mechanical properties of PMMA?
1.19 g/cm3. Mechanical properties: High Young’s Modulus, around 3 GPa, strength around 70 MPa….Poly(methyl methacrylate)
| Young’s modulus | 2855 | MPa |
|---|---|---|
| Compressive strength | 117.5 | MPa |
| Bending strength | 110 | MPa |
| Hardness | 90 | Rockwell |
| Impact strength | 0.24 | J/cm |
What is material PMMA?
Poly(methyl methacrylate), or PMMA, is known by many different names, including Plexiglas and acrylic. The biocompatibility of PMMA material has gained it the medical moniker of “bone cement.” PMMA is often used as a lighter, shatter-resistant alternative to glass in everything from windows, aquariums and hockey rinks.
What is the density of PMMA?
1.18 g/cm³
Poly/Density
What is the main component of PMMA solution?
What is it made of? Methyl methacrylate is the basic molecule, or monomer, from which polymethyl methacrylate and many other acrylic plastic polymers are formed. The chemical notation for this material is [CH2=C(CH3)COOCH3].
Why is PMMA so strong?
The highest quality PMMA sheets are produced by cell casting, but in this case, the polymerization and molding steps occur concurrently. The strength of the material is higher than molding grades owing to its extremely high molecular mass.
How is PMMA?
PMMA is made through a process called polymerization. The methyl methacrylate is placed into a mold along with a catalyst that is added to speed up the process. Due to this process, PMMA can be shaped into many forms such as sheets, blocks, resins, and beads. PMMA can be easily manipulated in many ways.
Is PMMA corrosive?
PMMA is generally characterized by good chemical resistance. Parts made from PMMA are resistant to most inorganic chemicals, aliphatic hydrocarbons, cycloaliphatic compounds, fats and oils at room temperature, and also to diluted acids and concentrated solutions of most alkalis at temperatures up to 60 degrees Celsius.
What is the drawback of PMMA?
Disadvantages. Poor solvent resistance. Low continuous use temperature of approx. 50 °C (120 °F).
How do you melt a PMMA?
PMMA polymers, can be dissolved in all: Tolune, Dichloromethane, Chloroform, and Acetone. You must use the casting techniques to prepare the samples. The best solvent for PMMA should be either toluene or acetone.