Acrylic, also known as plexiglass, can replace plexiglass and can be combined with aluminum-plastic plate profiles to meet the needs of merchants. The light box made of acrylic has the characteristics of good light transmission, rich colors and long service life.
It is an important plastic polymer material developed earlier, which has good transparency, chemical stability and weather resistance, easy dyeing, easy processing and beautiful appearance, and is widely used in the construction industry. Plexiglass products can usually be divided into pouring plate, extrusion plate and molding compound.
Acrylic board features:
1, hardness.
Hardness is one of the parameters that can best reflect the production process and technology of cast-pressed acrylic plate, and it is an important link of quality control. Hardness can reflect the purity of raw material PMMA, weather resistance and high temperature resistance of plate.
Hardness directly affects whether the plate will shrink and bend during processing and whether the surface will crack. Hardness is one of the hard indexes to judge the quality of acrylic board, and the average Mohs hardness is about 8 or 9 degrees.
2. Mechanical properties of acrylic board.
Poly (methyl methacrylate) (PMMA) has good comprehensive mechanical properties and ranks among the best in general plastics. Its tensile, bending and compressive strength is higher than that of polyolefin, polystyrene and PVC, and its impact toughness is poor, but it is also slightly better than that of polystyrene.
The mechanical properties such as tensile strength, bending strength and compressive strength of the cast bulk polymerized polymethylmethacrylate sheet (such as plexiglass for aviation) are high, which can reach the level of engineering plastics such as polyamide and polycarbonate.