Ko te PP, e mohiotia ana ko te polypropylene, he polymer i hangaia mai i te polypropylene me te tauhohenga alkene, he mea waxy ma, he maamaa me te marama te ahua.Ko te tauira matū (C3H6)x, he 0.89-0.91g/cm3 te kiato, he mura ahi, he rewa 165℃, he ngohengohe ki te 155℃, whakamahia te awhe pāmahana -30~140℃...
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