pp 聚丙烯化學(xué)和物理特性 pp是一種半結(jié)晶性材料。它比pe要更堅硬并且有更高的熔點。 由于均聚物型的pp溫度高于0c以上時非常脆,因此許多商業(yè)的pp材料是加入1~4%乙烯的無規(guī)則共聚物或更高比率乙烯含量的鉗段式共聚物。共聚物型的pp材料有較低的熱扭曲溫度(100c)、低透明度、低光澤度、低剛性,但是有有更強的抗沖擊強度。pp的強度隨著乙烯含量的增加而增大。 pp的維卡軟化溫度為150c。由于結(jié)晶度較高,這種材料的表面剛度和抗劃痕特性很好。
pp不存在環(huán)境應(yīng)力開裂問題。通常,采用加入玻璃纖維、金屬添加劑或熱塑橡膠的方法對pp進行改性。pp的流動率mfr范圍在1~40。低mfr的pp材料抗沖擊特性較好但延展強度較低。對于相同mfr的材料,共聚物型的 強度比均聚物型的要高。 由于結(jié)晶,pp的收縮率相當(dāng)高,一般為1.8~2.5%。并且收縮率的方向均勻性比pe-hd等材料要好得多。加入30%的玻璃添加劑可以使收縮率降到0.7%。 均聚物型和共聚物型的pp材料都具有優(yōu)良的抗吸濕性、抗酸堿腐蝕性、抗溶解性。然而,它對芳香烴(如)溶劑、氯化烴()溶劑等沒有抵抗力。
API - Aaron Industries Corp Products List---PP |
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Kind |
Specific |
Grade |
Colour |
Prime/repro |
Process |
|
Note |
Co-PP |
Co PP resin |
Aarolene ARPP C200-3 |
BK |
Repro |
Extrusion |
MFI 2.0g/10min |
|
Co-PP |
Co PP resin |
Aarolene ARPP C200-2 |
NC |
Prime |
Injection |
MFI 20g/10min |
|
HO-PP |
Ho PP Resin |
Aarolene AVPP 200-1 |
NC |
Prime |
Injection |
MFI 12g/10min |
|
PP |
PP+10%CaCO3 |
Aarolene CFIPP 2010 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+20%CaCO3 |
Aarolene CFIPP 2020 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+30%CaCO3 |
Aarolene CFIPP 2030 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+40%CaCO3 |
Aarolene CFIPP 2040 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+10%CaCO3 |
Aarolene CFPP 2010 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+20%CaCO3 |
Aarolene CFPP 2020 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+30%CaCO3 |
Aarolene CFPP 2030 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+40%CaCO3 |
Aarolene CFPP 2040 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+10%GF |
Aarolene GFIPP 2010 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+20%GF |
Aarolene GFIPP 2020 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+30%GF |
Aarolene GFIPP 2030 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+40%GF |
Aarolene GFIPP 2040 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+10%GF |
Aarolene GFPP 2010 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+20%GF |
Aarolene GFPP 2020 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+30%GF |
Aarolene GFPP 2030 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+40%GF |
Aarolene GFPP 2040 |
NC |
Compounder |
Injection |
|
Normal grade |
PP |
PP+10%Talc |
Aarolene TFIPP 2010 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+20%Talc |
Aarolene TFIPP 2020 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+30%Talc |
Aarolene TFIPP 2030 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+40%Talc |
Aarolene TFIPP 2040 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+10%Talc |
Aarolene TFIPP 2010 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+20%Talc |
Aarolene TFIPP 2020 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+30%Talc |
Aarolene TFIPP 2030 |
NC |
Compounder |
Injection |
|
Impact Resistant |
PP |
PP+40%Talc |
Aarolene TFIPP 2040 |
NC |
Compounder |
Injection |
|
Impact Resistant |