1, wood powder filling PP
PP 92.5%
Wood flour (treated with 17.5% NaOH solution, 40~60μm) 7.5%
Related performance
PP
PP+ wood flour
Tensile strength/MPa
29.2
27.9
Elongation/%
397
498
Simply supported beam notched impact strength 23°C/(KJ/m2)
4.33
6.31
Flexural strength/MPa
56.3
60.6
2. Composite reinforced PP material PP (Yanshan Petrochemical 1300) 100
Glass Fiber 25
Mica Powder 15
Silane coupling agent 0.5~1
Related properties: tensile strength 86.8MPa; bending strength 101.8MPa; flexural modulus 4.2×103MPa; notched impact strength 7.1KJ/m2
3, PP/EVA/CaCO3 Toughening System Formula Composition (mass)
PP
Surgical Mask,N95 Medical Mask ,Medical masks，N95 mask
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