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Acrylic sheet compare with other materials
Material | advantage | disadvantage |
PMMA |
1, High light transmittanc 2, Excellent weather condition, anti-UV 3, Easy to be processed, good for cutting, thermforming, CNC and laser cutting and engraving 4, Resistant to common solvents 5, Competitive prices |
The impact resistance is not good enough, but the impact-modified acrylic plate can meet the requirements of the resistance performance in most occasions |
PC | Excellent impact resistance |
1, Poor weather resistance and sensitivity to sunligh 2, The surface is not wear-resistant and easily scratched 3, Poor solvent resistance 4, Large molding stress, easy to crack 5, Higher processing cost 6, High price |
PS |
1, Good fluidity and easy to proces 2, cheap |
1, Low transparency 2, Very poor weather resistance, easy to yellow 3, Thick smoke when burning 4, Poor solvent resistance and fragile |
PVC |
1, The board has a certain strength 2, cheap |
1, Very low transparenc 2, The surface is not wear-resistant 3, Poor weather resistance, easy yellowing and loss of light 4, Light box cloth installation trouble, low wind resistance |
PETG |
1, Good ductility and high draw ratio 2,PCSolvent resistance is stronger than PC |
1, Very poor weather resistance and UV resistanc 2, Low transparency, the surface is not wear-resistant 3, High price |
Comparison of mechanical properties
item | PS | PC | PMMA | t-PMMA | PETG |
Tensile modulus G Pa | 3.2 | 2.4 | 3.2 | 2.4 | 2.0 |
Tensile strength MPa |
70 | 72 | 75~85 | 60 | 50 |
Impact strength (no gap)KJ/M2 | 10 | Not broken | 18~26 | 60 | Not broken |
Impact strength (notch)KJ/M2 | 2.0 | 80 | 2.2 | 7.7~25 | 8.8 |
t-PMMA————Impact grade acrylic
Thermal performance comparison
item | PS | PC | PMMA | t-PMMA | PETG |
Glass transition temperature ℃ | 100 | 149 | 105 | 105 | 81 |
Melting temperature ℃ | 240 | 270 | 230 | 235 | 180 |
Injection processing temperature ℃ | 204 | 290 | 245 | 245 | 250 |
Continuous use temperature ℃ | 82 | 132 | 85 | 80 | 65 |
Thermal decomposition temperature ℃ | 290 | >300 | 310 | 310 |
t-PMMA————Impact grade acrylic
Optical performance comparison
item | PS | PC | PMMA | t-PMMA | PETG |
Transmittance, % | 90 | 88 | 92.5 | 91 | 88 |
Turbidity | 2.0 | 0.5 | 2.0 | 2.2 | |
Yellowness Index | 2 | 0.7 | 2 | 2 |
t-PMMA————Impact grade acrylic
Weather resistance comparison
item | PS | PC | PMMA | t-PMMA | PETG |
Yellowness Index | 2.0 | 0.7 | 2.0 | 2.0 | |
Yellowness index (2000h, UV) | Very poor | 9.2 | 1.0 | 2.2 | BAD |
Weather resistance | BAD | BAD | Excellent | GOOD | BAD |
t-PMMA————Impact grade acrylic
Comprehensive performance comparison
item | PMMA | PC | PS | PETG | ABS | PVC |
Anti-UV performance | BEST | GOOD | BAD | GOOD | BAD | BAD |
Impact resistance | GOOD | BEST | BAD | BETTER | BEST | BETTER |
Processing performance | BETTER | BAD | BEST | BAD | GOOD | BETTER |
Chemical resistance | BETTER | BAD | BETTER | BEST | GOOD | GOOD |
Scratch resistance | BEST | GOOD | BETTER | GOOD | BAD | BAD |
Optical performance | BEST | BETTER | GOOD | GOOD | BAD | BAD |
Sum up:
Acrylic has excellent optical performance;
Acrylic has excellent weather resistance;
Acrylic has good physical properties;
Acrylic has good mechanical processing and thermoforming properties;
Acrylic's impact resistance is weak, but the impact-modified acrylic plate can meet quite high impact requirements;
Acrylic is extremely versatile in the fields of products, display and identification, and has a very broad market prospect.