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Acrylic sheet compare with other materials

May. 06, 2020

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

Acrylic sheet compare with other materialsAcrylic sheet compare with other materialsAcrylic sheet compare with other materialsAcrylic sheet compare with other materials

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.

Acrylic sheet compare with other materials

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