2024年3月12日发(作者：win7原版镜像)
Experiment Report
Mobile Phone Dissembling Experiment
【Experimental Purpose】
1．To understand the material composed mobile phone；
2．To understand the classification of materials；
3．To understand that the development of material plays an important role in human's lives；
4．To understand that different materials can be made into different products meeting different
demands.
【Experimental Specimen】
A Mobile Phone Of Nokia
【Experimental Operation】
apart of the mobile phone;
2. Observe the parts of the mobile phone carefully and take some photos;
is the material of the parts, discuss and come to a conclusion
【Experimental Result】
1. The mobile phone casing
The mobile phone casing is usually made of three kinds of plastic materials: PC, ABS, or PC
mixed with ABS.
1
Material
PC
ABS
PC+ABS
1) PC
Tensile
Strength(Mpa)
69
43
56
Hardness
-Rockwell (R)
120
100
110
Using
temperature(℃)
130
60
60
Polycarbonate(PC) is a very durable material. Although it has high impact-resistance, it has
low scratch-resistance and so a hard coating is applied to polycarbonate eyewear lenses and
polycarbonate exterior automotive components. The characteristics of polycarbonate are quite
like those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is stronger, usable in a
wider temperature range but more expensive. This polymer is highly transparent to visible light
and has better light transmission characteristics than many kinds of glass.
2) ABS
Acrylonitrile Butadiene Styrene (ABS) is a terpolymer of acrylonitrile, butadiene and styrene.
Usual compositions are about half styrene with the balance divided between butadiene and
acrylonitrile.
ABS has many advantages: high heat resistance, good impact resistance, high flow, good
processability, good dimensional stability and so it also has some disadvantages, such as
limited weathering resistance and relatively high cost.
screen
There were two types of screen, LCD and LED.
1) LCD
2
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