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ʻO PP kahi ʻano mea semi-crystalline.ʻOi aku ka paʻakikī ma mua o ka PE a ʻoi aku ka nui o ka heheʻe.ʻO ka mea Copolymer PP he haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa (100 ℃), haʻahaʻa haʻahaʻa, haʻahaʻa haʻahaʻa, haʻahaʻa rigidity, akā ʻoi aku ka ikaika o ka hopena.Hoʻonui ka ikaika o ka PP me ka hoʻonui ʻana i ka ʻike ethylene.ʻAʻohe pilikia pilikia kaiapuni ma PP.ʻO ka maʻamau, ʻoi aku ka maikaʻi o nā mea haʻahaʻa MFR PP haʻahaʻa akā haʻahaʻa ka ikaika tensile.No nā mea me ka MFR like, ʻoi aku ka ikaika o ke ʻano copolymer ma mua o ka ʻano homopolymer.Ma muli o ka crystallization, ʻoi aku ka kiʻekiʻe o ka shrinkage rate o PP, a ʻoi aku ka maikaʻi o ka hoʻohālikelike kuhikuhi ʻana o ka shrinkage rate ma mua o nā mea e like me PE-HD.ʻO ka ʻano homopolymer a me ka copolymer type PP nā mea i loaʻa i ke kūpaʻa hygroscopic maikaʻi loa, ka ʻakika a me ka alkali corrosion kū'ē, solubility kū'ē.Eia nō naʻe, ʻaʻohe mea kūʻē i nā mea hoʻoheheʻe aromatic hydrocarbon (e like me benzene), chlorinated hydrocarbon (carbon tetrachloride) solvents, etc.