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Rapid prototye - Common structural materials PMMA,PS-plastic rapid prototyping

Nov 02,20

Rapid prototye - Common structural materials PMMA,PS-plastic rapid prototyping

PMMA is called polymethyl methacrylate in Chinese, also known as acrylic, acrylic, acrylic and plexiglass.It is one of the most common transparent plastics.

1. The advantages of PMMMA
(1)High transparency, is the most commonly used plastic transparency, transmittance can reach 92%.
(2)High surface hardness after hardening.
(3)Good fatigue strength.
(4)Good environmental resistance and organic solvent resistance.
(5)Widely used temperature range (-40~20℃).
(6)Good dimensional stability.
2.The disadvantage of PMMMA
(1)If the processing process is under high temperature for a long time, it is easy to start thermal decomposition.
(2)No self - extinguishing.
(3)Poor acid resistance.
(4)Forming shrinkage rate is high.
(5)The material is brittle.
3.The density of
The density of 1.18 GCM
4.PMMA surface treatment
It can be used for vacuum plating, spraying, screen printing, pad printing, IML, etc.
5.The connection method
The connection mode is divided into buckle, screw, hot-melt, ultrasonic, double-sided adhesive tape, etc.
6.Scope of application
Often used for lens, transparent decoration, stationery, instrument cover, lamp shade, etc.


PS is called polystyrene in Chinese, because it is very brittle, commonly known as brittle glue.It is one of the most common transparent plastics.
1.The advantages of PS
1)High transparency, good light transmittance, transmittance can reach more than 90%.
2)Good coloration, easy to shape.
3)Good dimensional stability.

2.The disadvantage of PS
1)The material is brittle and easy to break.
2)Poor solvent resistance.
3)Poor temperature resistance, easy to burn.The highest continuous use temperature of its products is only 60 ~ 80℃, it is not suitable to make containers containing boiling water and high-heat food.
4)The surface wear resistance is poor, easy to scratch.

3.The density of
The density was 1.04 ~ 1.06 g/cm3.

4.PS surface treatment
Easy to color, vacuum plating, spraying, screen printing, printing, etc.
5.The connection method
The connection mode is divided into buckle, screw, hot-melt, ultrasonic, double-sided adhesive tape, etc.
6.Scope of application
It is often used for lenses, lampshades, stationery, lenses, optical instrument parts and so on.