TOPM 90HR
Polymethyl methacrylate (PMMA):With its excellent transparency,UV resistance,and light transmittance,PMMA is known for its use in signage,lighting,and automotive applications.
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Polymethyl methacrylate (PMMA):With its excellent transparency,UV resistance,and light transmittance,PMMA is known for its use in signage,lighting,and automotive applications.
Product Application
Automotive interior and exterior,business equipment casings and built-in components,mobile phone casings,electrical products,electronic product casings,meter covers and casings,household switches,plugs and sockets,cable conduits,household appliances.
TOPM®
TOPMO is an optical-grade methacrylate-based copolymer.It possesses outstanding optical properties,mechanical properties,good weather resistance,scratch resistance and easy processing characteristics.It is applicable to fields such as vehicle-mounted equipment,optical devices,lighting equipment,electronic appliances,medical products and daily necessities.
| Items |
Unit |
60HT |
66HT |
63HT |
60HR |
80HR |
90HR |
66HF |
85HF |
|
Total light transmittance |
% |
93 |
93 |
93 |
93 |
93 |
93 |
93 |
93 |
|
Haze |
% |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
|
Refractive index |
|
1.49 |
1.49 |
1.49 |
1.49 |
1.49 |
1.49 |
1.49 |
1.49 |
|
Specific gravity |
|
1.19 |
1.19 |
1.19 |
1.19 |
1.19 |
1.19 |
1.19 |
1.19 |
|
Water absorption rate |
% |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
0.3 |
|
Heat Deflection Temperature |
℃ |
100 |
100 |
103 |
94 |
94 |
94 |
87 |
84 |
|
Vicat Softening Temperature |
℃ |
106 |
106 |
108 |
101 |
101 |
100 |
94 |
89 |
|
230℃.3.8kg |
g/10min |
2.0 |
5.5 |
3.0 |
1.5 |
10.0 |
20.0 |
6.0 |
14.0 |
|
Tensile strength |
MPa |
77 |
61 |
77 |
75 |
61 |
54 |
71 |
66 |
|
Elongation at break |
% |
6 |
3 |
6 |
7 |
3 |
2 |
6 |
4 |
|
Tensile modulus |
GPa |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
|
Flexural strength |
MPa |
135 |
125 |
125 |
135 |
125 |
115 |
130 |
120 |
|
Flexural modulus |
GPa |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
|
Izod Impact Strength(Notched) |
KJ/m² |
20 |
19 |
20 |
19 |
19 |
18 |
19 |
18 |
|
Izod Impact Strength (Unnotched) |
KJ/m² |
1.4 |
1.4 |
1.3 |
1.3 |
1.3 |
1.3 |
1.4 |
1.3 |
|
Rockwell Hardness |
|
100 |
100 |
100 |
100 |
98 |
96 |
94 |
92 |
