VALOX™ 176 resin

About
Unreinforced, neat PBT resin for fibers. Natural Color Only, Not intended for injection molding.&&

Product Description
SupplierSABIC
Genericpolybutylene terephthalate
Material StatusCommercial: Active
AvailabilitysNorth America,Asia Pacific

Technical Data
MECHANICALNominal valueUnitTest method
Tensile modulus2500MPaASTM D638
Tensile modulus2600MPaISO 527-1-2
tensile strength
fracture50.0MPaASTM D638
fracture45.0MPaISO 527-2/50
yield50.0MPaASTM D638
yield45.0MPaISO 527-2/50
Tensile strain
fracture1.8%ISO 527-2/50
fracture2.0%ASTM D638
yield1.8%ISO 527-2/50
yield2.0%ASTM D638
Bending modulus2290MPaISO 178
50 mm span2390MPaASTM D790
bending strength81.0MPaISO 178
bending strength
Yield, 50 mm span84.0MPaASTM D790

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃7.0kJ/m²ISO 179/1eA
Impact strength of cantilever beam notch
23℃28J/mASTM D256
23℃2.9kJ/m²ISO 180-1A
23℃890J/mASTM D4812
Notched impact strength of cantilever beam
23℃35kJ/m²ISO 180/1U
Dart impact equipped with measuring instruments
23℃,Total Energy5.00JASTM D3763

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed, 64 mm span51.0ISO 75-2/Af
1.8 MPa, unannealed, 3.2 mm48.0ASTM D648
0.45 MPa, unannealed, 64 mm span113ISO 75-2/Bf
0.45 MPa, unannealed, 3.2 mm104ASTM D648
Vicat Softening Temp 
B50178ISO 306
B120177ISO 306/B120
Linear coefficient of thermal expansion
TD:-40~40℃8.5E-51/℃ISO 11359-2
MD:-40~40℃8.5E-51/℃ISO 11359-2

PHYSICALNominal valueUnitTest method
Density1.32g/cm³ASTM D792
Density1.31g/cm³ISO 1183
Melt Flow Rate
250℃,1.20kg130g/10minASTM D1238
Melt Volume Rate ISO 1133
250℃,1.2 kg127cm³/10minISO 1133
250℃,2.16 kg231cm³/10minISO 1133
Shrinkage rate
TD:3.2 mm1.6 to 2.0%Internal Method
MD:3.2 mm1.5 to 1.8%Internal Method
Water absorption rate
Saturation, 23 ℃0.080%ISO 62
Equilibrium, 23 ℃, 50% RH0.070%ISO 62
Apparent viscosity of melt35.0Pa·sInternal Method

Process Conditions
ExtrusionNominal valueUnitTest method
Drying temperature110 to 120°C
Drying time4.0 to 6.0hr
Recommended maximum moisture content0.020%
Barrel 1 zone temperature200 to 230°C
Barrel 2 zone temperature240 to 255°C
Barrel 3 zone temperature240 to 275°C
Barrel 4 zone temperature240 to 275°C
Connector temperature240 to 275°C
Melt temperature245 to 260°C
Nozzle temperature240 to 275°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. 0.20 in/min
3. Type I, 2.0 in/min
4. 0.051 in/min
5. 0.079 in/min
6. Yield
7. 80*10*4 sp=62mm
8. 80*10*4
9. 80*10*4 mm
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