5996 kāʻei hoʻoili maka aniani palaki modular

Nā waiwai kino:

ʻAʻohe ʻawaʻawa o ka Polypropylene, ʻaʻohe ʻala, ʻaʻohe ʻono o ka polymer kristal kiʻekiʻe keʻokeʻo waiū, ʻo ka density he 0.90 ~ .091g / cm3 wale nō, ʻO ia kekahi o nā ʻano māmā loa o nā plastics āpau i kēia manawa.

Paʻa loa i ka wai, i loko o ka wai 24h wai ka nui o ka omo wai he 0.01% wale nō, ʻo ka nui molekala e pili ana i 8-150,000, hoʻoheheʻe maikaʻi, akā ma muli o ka emi ʻana, maʻalahi ka palupalu o nā huahana paia mānoanoa, maikaʻi ka ʻōlinolino o ka ʻili o ka huahana, maʻalahi ke kala.

He kūpaʻa wela maikaʻi ko PP, ʻo ke kiko heheʻe he 164-170 ℃, hiki ke hoʻomaʻemaʻe ʻia a hoʻomaʻemaʻe ʻia nā huahana i nā mahana ma luna o 100 ℃, inā ʻaʻohe ikaika o waho 150 ℃ ʻaʻohe deformed, ʻo ka mahana embrittering he -35 ℃, ma lalo o -35 ℃ e loaʻa ka embrittering, ʻaʻole maikaʻi ke kūpaʻa anu e like me ka polyethylene.

Paʻa Kemika：

He kūpaʻa kemika maikaʻi ko ka Polypropylene, ʻaʻole wale ka maʻalahi o ka sulfuric acid i hoʻopaʻa ʻia a me ka nitric acid erosion, akā paʻa nō hoʻi no nā ʻano kemika ʻē aʻe, akā hiki i ka hydrocarbon momona kaumaha molekala haʻahaʻa, ka hydrocarbon ʻala a me ka hydrocarbon chlorinated ke hoʻoluʻolu a me ka pehu ʻana o ka PP, e like me kona kūpaʻa kemika i ka manawa like aia kekahi hoʻonui me ka hoʻonui ʻana o ka crystallinity, kūpono no ka hana ʻana i nā paipu kemika a me nā mea hoʻopili, no laila maikaʻi ka hopena anti-corrosion polypropylene.

hana hoʻokaʻawale alapine kiʻekiʻe maikaʻi loa, ʻaneʻane ʻaʻohe omo wai, ʻaʻole i hoʻopilikia ʻia ka hana hoʻokaʻawale e ka haʻahaʻa