6.777J/2.751J Material Property Database

 

Material: PMMA

 

Property

Value

Reference

Image/URL (optional)

Mass density

1170-1200MPa

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Young's modulus

1800-3100 MPa

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Poisson ratio

0.35-0.4

http://www.goodfellow.com/csp/active/static/A/ME30.HTML

 

Stiffness Constants

2944MPa (modulus of elasticity)

http://www.tstar.com/Materials/ShowDetail.asp?Menu=&Type_ID=497

 

Tensile or fracture strength

48-76 MPa

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Residual stress on silicon

 

 

 

Specific heat

1466 J/kg/K

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Thermal conductivity

0.167-0.25 W/m.K

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Dielectric constant

2.6 at 1MHz

http://www.goodfellow.com/csp/active/static/A/ME30.HTML

 

Index of refraction

1.492

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Electrical conductivity

1E-19 (inverse of resistivity)

http://www.io.tudelft.nl/research/dfs/idemat/Onl_db/Id123p.htm

 

Magnetic permeability

 

 

 

Piezoresistivity

 

 

 

Piezoelectricity

 

 

 

Wet etching method

Possible using any chemical that can degrade PMMA

Examples: aldehydes, ether, ammonia, acetone

See complete list on http://www.bohlender.de/e/x.pdf

 

Plasma etching method

OK with O2

M. J. Madou, Fundamentals of Microfabrication, 2000 

 

Adhesion to silicon dioxide

Yes possible: PMMA is often used as a mask. Use 0.8% of BPO(benzoyl peroxide) to improve adhesion

M. J. Madou, Fundamentals of Microfabrication, 2000 

 

Biocompatibility

Yes: used for diverse biomaterials: bone cement, dializer, scaffolds for tissue engineering, etc.

http://www.annanurse.org/resource/corpmem/toray.htm

 

Hydrophobicity

Pretty hydrophobic: contact angle = 72degres

http://www.micromemanalytical.com/CAngle/ConAngl.htm