Udel® P-3500 LCD MB

About
Udel® polysulfone is a tough, rigid, high-strength thermoplastic with outstanding hydrolytic resistance. Udel® P-3500 LCD MB series polymers are particularly well suited for the fabrication of porous hollow fiber and flat sheet membranes using a solvent-based process. These high molecular weight polymers are used in a variety of membrane filtration applications, such as renal dialysis, water treatment, bio-processing, food and beverage processing, and industrial gas separation. Udel® polysulfone polymers possess a number of attributes that are valued by the membrane industry, including excellent mechanical properties, stability at pH levels from 2-13, excellent resistance to caustic and good resistance to moderate concentrations of chlorine. They feature low levels of extractible and insoluble materials making them suitable for drinking water and food contact uses. They may be sterilized using steam, ethylene oxide and e-beam radiation. Udel® P-3500 LCD MB series polymers are available in various narrow molecular weight range grades, as shown below. Each grade features reduced levels of cyclic dimer compared to the previous grade, P-3500 NT 11. This can be important in solution processing applications such as membrane production, as it leads to improved dope solution stability and reduced equipment fouling. The Udel® P-3500 LCD MB series polymers are soluble in commercially available, water-miscible, dipolar, aprotic solvents, such as dimethylacetamide (DMAC), dimethylformamide (DMF), and N-methylpyrrolidone (NMP). These materials offer membrane producers very good control of pore size and pore size distribution, high membrane strength, and good film-forming properties.&&

About

Udel® polysulfone is a tough, rigid, high-strength thermoplastic with outstanding hydrolytic resistance. Udel® P-3500 LCD MB series polymers are particularly well suited for the fabrication of porous hollow fiber and flat sheet membranes using a solvent-based process. These high molecular weight polymers are used in a variety of membrane filtration applications, such as renal dialysis, water treatment, bio-processing, food and beverage processing, and industrial gas separation. Udel® polysulfone polymers possess a number of attributes that are valued by the membrane industry, including excellent mechanical properties, stability at pH levels from 2-13, excellent resistance to caustic and good resistance to moderate concentrations of chlorine. They feature low levels of extractible and insoluble materials making them suitable for drinking water and food contact uses. They may be sterilized using steam, ethylene oxide and e-beam radiation. Udel® P-3500 LCD MB series polymers are available in various narrow molecular weight range grades, as shown below. Each grade features reduced levels of cyclic dimer compared to the previous grade, P-3500 NT 11. This can be important in solution processing applications such as membrane production, as it leads to improved dope solution stability and reduced equipment fouling. The Udel® P-3500 LCD MB series polymers are soluble in commercially available, water-miscible, dipolar, aprotic solvents, such as dimethylacetamide (DMAC), dimethylformamide (DMF), and N-methylpyrrolidone (NMP). These materials offer membrane producers very good control of pore size and pore size distribution, high membrane strength, and good film-forming properties.&&

Product Description
Supplier	Solvay
Generic	PSU
Material Status	Commercial: Active
Features	Good flexibility,Alkali resistant,Hydrolysis stability,Ethanol tolerance,Acidproof,High Heat Resistance,Solvent resistance,Hydrocarbons
Availabilitys	North America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density	1.24	g/cm³	ASTM D792
Water absorption rate
24hr	0.30	%	ASTM D570
molecular weight
P-3500 LCD MB3	78000 to 84000	g/mol
P-3500 LCD MB7	77000 to 83000	g/mol
Solution viscosity
P-3500 LCD MB3	2.2 to 2.8	Pa·s
P-3500 LCD MB7	2.2 to 2.7	Pa·s

MECHANICAL	Nominal value	Unit	Test method
Tensile modulus	2480	MPa	ASTM D638
tensile strength
fracture	70.3	MPa	ASTM D638
Tensile strain
fracture	50 to 100	%	ASTM D638
Bending modulus	2690	MPa	ASTM D790
bending strength	106	MPa	ASTM D790

IMPACT	Nominal value	Unit	Test method
Impact strength of cantilever beam notch	69	J/m	ASTM D256
Tensile impact strength	420	kJ/m²	ASTM D1822

THERMAL	Nominal value	Unit	Test method
Hot deformation temperature
1.8 MPa, unannealed	174	℃	ASTM D648
Linear coefficient of thermal expansion
MD	5.6E-5	1/℃	ASTM D696

Electrical performance	Nominal value	Unit	Test method
Volume resistivity	3.0E+16	ohms·cm	ASTM D257
Dielectric strength	17	kV/mm	ASTM D149
Dielectric constant			ASTM D150
60 Hz	3.03		ASTM D150
1 kHz	3.04		ASTM D150
1 MHz	3.02		ASTM D150
Dissipation factor			ASTM D150
60 Hz	7.0E-3		ASTM D150
1 kHz	1.0E-3		ASTM D150
1 MHz	6.0E-3		ASTM D150

Notes
1. Typical properties: these are not to be construed as specifications.
2. 25 wt% polymer solution in DMAc measured at 40°C and 30s-1 shear rate
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