Explain the process features and uses of custom window panels?

Process characteristics of customized window panel:

1. The custom window panel contains polar side methyl groups and has obvious hygroscopicity. The water absorption rate is usually 0.3% -0.4%. The acrylic sheet must be dried before molding. The drying conditions are 80 ℃ -85 ℃ for 4-5h. .

2. Acrylic has obvious non-Newtonian fluid characteristics in the temperature range of molding process. The melt viscosity will decrease significantly with the increase of shear rate, and the melt viscosity is also very 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. The temperature at which acrylic starts to flow is about 160 ° C, and the temperature at which decomposition starts is higher than 270 ° C, which has a wide processing temperature range.

4. Acrylic melt viscosity is high, the cooling rate is fast, and the product is prone to internal stress, so the process conditions are strictly controlled during molding, and post-processing is also required after the product is molded.

       5. Acrylic is an amorphous polymer, and the shrinkage and its variation range are relatively small, usually about 0.5% -0.8%, which helps to form plastic parts with higher dimensional accuracy.

6. The cutting performance of the customized window panel is particularly good, and its profiles can be easily processed into various required sizes.

Custom window panel use:

Customized window panel has the advantages of light weight, low price, and easy forming. Its molding methods include casting, injection molding, mechanical processing, and acrylic thermoforming. Especially injection molding, which can be mass-produced, has simple process and low cost. Therefore, its application is becoming more and more extensive. At present, it is widely used in instrumentation parts, car lights, optical lenses, transparent pipes, etc.

Customized window panel is made by polymerizing methyl methacrylate monomer (MMA), namely polymethyl methacrylate (PMMA) sheet plexiglass, which is a kind of plexiglass processed by a special process. Has the reputation of "plastic queen". Acrylic research and development has a history of more than 100 years.