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PLumaLeather Is Resistant To Low Temperature And Bending |
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Performance parameters |
PlumaLeather |
PVC Leather |
PU Leather |
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Brittle temperature |
≤ -70℃ |
-20~0℃(Plasticizer dependence) |
-40~-10℃ |
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-40℃ Flexural modulus |
≤50 MPa(Rate of change<10%) |
>500 MPa(Hardening200%+) |
150~300 MPa(Hardening80%) |
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Low temperature impact strength |
Reservations>90% |
Loss70%~90% |
Loss40%~60% |
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Cold bending life |
>50,000次(-30℃) |
<20,000次(-30℃ Cracking) |
<20,000次(-30℃ Cracking) |
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Molecular chain characteristics |
Saturated linear hydrocarbon + long branched chain |
Polar rigid chain (containing Cl atoms) |
Hard Segments and Soft Segments Microphase Separation |
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Low temperature behavior mechanism |
and maintains segment mobility at-70℃
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Molecular chains freeze at low temperatures, and plasticizers migrate, fail and become embrittlement |
At low temperatures, the hard segments form physical cross-linking points, limiting the movement of the soft segments |
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PLumaLeather Low VOC |
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Test project |
PLumaLeather |
PVC Leather |
PU Leather |
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TVOC(ug/m³) |
≤50 |
300–800 |
150–400 |
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Formaldehyde(ug/m³) |
<0.05 |
0.3–0.6 |
0.1–0.3 |
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Acetaldehyde(ug/m³) |
<0.02 |
0.1–0.4 |
0.05–0.2 |
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PlumaLeather Low Solvent |
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Factors |
PlumaLeather |
PVC Leather |
PU Leather |
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Plasticizer demand |
No |
Required (high addition) |
Part needs |
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Solvent use |
No |
Small amount (lubricant) |
Large amount (traditional craftsmanship) |
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Free monomer risk |
No |
None (but vinyl chloride monomer causes cancer) |
High (TDI/MDI residue) |
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Thermal decomposition tendency |
Extremely low |
High (released HCl) |
Medium |
PVC: plasticizer precipitation, heat stabilizer residue, free monomer decomposition.
PU: Residual unreacted monomer, solvent decomposition.