He aha ka High Density Polyethylene
ʻO ka polyethylene kiʻekiʻe (HDPE), ka pauka keʻokeʻo a i ʻole ka huahana granular. Non-toxic, tasteless, crystallinity of 80% to 90%, softness point of 125 to 135°C, hoʻohana i ka mahana a hiki i 100°C; ʻoi aku ka paʻakikī, ka ikaika tensile a me ka ductility ma mua o ka polyethylene haʻahaʻa haʻahaʻa; ʻaʻahu kūʻokoʻa, uila ʻO ka insulation maikaʻi, ka paʻakikī a me ke kū anuanu; paʻa kemika maikaʻi, ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o kekahi mea hoʻoheheʻe kūlohelohe i ka lumi wela, ka pale ʻana i ka corrosion o ka waikawa, alkali a me nā paʻakai like ʻole; hikiwawe kiʻiʻoniʻoni i ka wai mahu a me ka ea, wai absorption Haʻahaʻa; ʻAʻole maikaʻi ka pale ʻana i ka wā kahiko, ʻoi aku ka maikaʻi o ka pale ʻana i ke kaiapuni e like me ka polyethylene haʻahaʻa haʻahaʻa, ʻoi aku ka maikaʻi o ka oxidation thermal e hōʻemi i kāna hana, no laila pono e hoʻohui ʻia nā antioxidants a me nā absorbers ultraviolet i ka resin e hoʻomaikaʻi i kēia hemahema. ʻO ka kiʻiʻoniʻoni polyethylene kiʻekiʻe he haʻahaʻa haʻahaʻa distortion wela ma lalo o ke koʻikoʻi, no laila e hoʻolohe i ka wā e noi ai.
[Inoa Pelekane] High Density Polyethylene[Poloke Pelekane] HDPE
[Inoa maʻamau] Ethylene kaomi haʻahaʻa
[Monomer hui] Ethylene [Nā hiʻohiʻona maʻamau] ʻO ka HDPE he mea like me ka wax keʻokeʻo opaque me kahi ʻumekaumaha kikoʻī ʻoi aku ka māmā ma mua o ka wai, me ka umekaumaha kikoʻī o 0.941~0.960. He palupalu a ʻoʻoleʻa, akā ʻoi aku ka paʻakikī ma mua o LDPE, a hiki ke kikoo iki, ʻaʻohe mea ʻawaʻawa a ʻono ʻole.
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