nūhou

ʻO ka polyethylene kiʻekiʻe a i ʻole HDPE ke kumu kūʻai haʻahaʻa, keʻokeʻo waiū, semi-translucent thermoplastic.He maʻalahi akā ʻoi aku ka paʻakikī a ʻoi aku ka ikaika ma mua o LDPE a loaʻa ka ikaika hopena maikaʻi a me ke kūpaʻa ʻoi aku ka maikaʻi.E like me ka LDPE, loaʻa iā ia ke kūpaʻa kemika maikaʻi, nā waiwai hoʻokuʻu maikaʻi, a me ka mahu maikaʻi akā maikaʻi ʻole ka pale kinoea a me nā waiwai ʻino.ʻO nā palena ʻē aʻe a i ʻole nā ​​pōʻino ʻē aʻe e pili ana: pili i ka pohā koʻikoʻi, paʻakikī i ka hoʻopaʻa ʻana, hiki ke puhi ʻia, a me ka hiki ke wela.

ʻO ka maʻamau, ʻoi aku ka linear polyethylene kiʻekiʻe a no laila ʻoi aku ka crystalline ma mua o LDPE.ʻO ka crystallinity kiʻekiʻe e alakaʻi i kahi mahana lawelawe kiʻekiʻe loa a hiki i ka 130 ° C a me ka hopena i kahi ʻoi aku ka maikaʻi o ka pale ʻana.ʻO ka mahana lawelawe haʻahaʻa ma kahi o -40°C.

ʻOi aku ka paʻakikī o HDPE ma mua o nā kiʻiʻoniʻoni polyethylene ʻē aʻe, he ʻano koʻikoʻi ia no nā pūʻolo e pono e mālama i ko lākou ʻano.He maʻalahi ka HDPE e hana a hiki ke hoʻohui ʻia me nā polymers ʻē aʻe a/a i ʻole nā ​​​​mea hoʻohui, e like me (surface treated) fillers, polyolefin ʻē aʻe (LDPE, LLDPE), a me nā puaʻa e hoʻololi i kāna mau waiwai kumu.