Acrylic Tube

The acrylic tube is a polymer obtained by polymerizing acrylic acid and its lipids, and the corresponding plastics are collectively referred to as polyacrylic plastics.
Among them, polymethyl methacrylate is the most widely used. Polymethyl methacrylate codenamed PMMA, commonly known as plexiglass, also known as acrylic, is by far the most excellent synthetic transparent material.
1. Polymethyl methacrylate contains a polar side methyl group, which has obvious hygroscopicity, and the water absorption rate is generally 0.3%-0.4%. It must be dried before molding, and the drying condition is drying at 80°C-85°C for 4-5h. .
2. Polymethyl methacrylate has obvious non-Newtonian fluid properties in the temperature range of molding processing. The melt viscosity decreases with the increase of shear rate, and the melt viscosity is also sensitive to temperature changes. Therefore, for the molding process of polymethyl methacrylate, increasing the molding pressure and temperature can significantly reduce the melt viscosity and achieve better fluidity.
3. Polymethyl methacrylate starts to flow at a temperature of about 160 ° C, and the temperature at which decomposition begins is higher than 270 ° C, and has a wide processing temperature interval.
Applications: Lighting fixtures, biotechnology, security monitoring, electronics, hardware and electronics.
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