Brand:BST
MOQ:1
Quantity:80
Our PBT resin, produced by advanced PTA and BOD continualreaction, has characteristics of wide control range of intrinsicviscosity and narrow range of intrinsic viscosity deviation, lowcarboxyl end groups value, good color and luster.
Quality characteristics of PBT resin 1000 series | ||||||
Test Item | Method | Units | L1075 | L1082 | L1090 | |
Chemical Performance | Intrinsic viscosity | Q/SHYH08.4411 | dl/g | 0.750±0.015 | 0.820±0.015 | 0.900±0.015 |
Carboxyl | Q/SHYH08.4412 | mol/t | ≤30 | ≤30 | ≤30 | |
Melting point | Q/SHYH08.3026 | °C | ≥225 | ≥225 | ≥225 | |
L value | Q/SHYH08.4413 | - | ≥88 | ≥88 | ≥88 | |
b value | Q/SHYH08.4413 | - | ≤5.5 | ≤5.5 | ≤5.5 | |
Physical Performance | Density | ASTM D792 | g/cm3 | 1.30-1.32 | 1.30-1.32 | 1.30-1.32 |
Melt flow rate | ASTM D1238 | g/10min | 90-120 | 60-65 | 45-50 | |
Tensile strength | ASTM D638 | Mpa | 40-50 | 50-60 | 50-60 | |
Elongation | ASTM D638 | % | ≥60 | ≥100 | ≥200 | |
Notched impact strength | ASTM D256 | J/m | ≥40 | ≥40 | ≥40 | |
Dielectric strength | ASTM D149 | KV/mm | ≥20 | ≥20 | ≥20 | |
