He aha ka High Density Polyethylene

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.

[Nā hiʻohiʻona ahi] Hiki ke hoʻomau i ke ahi ma hope o ka haʻalele ʻana i ke ahi. He melemele ka welau o luna o ka lapalapa a he uliuli ka welau lalo. I ke ahi, hehee ia, kulu ka wai, aole e puka mai ka uahi eleele. I ka manawa like, hoʻopuka ia i ke ʻala o ka paraffin burning.

[Pono nui] Acid a alkali resistance, organic solvent resistance, insulation uila maikaʻi loa, a hiki ke mālama i kekahi ʻano paʻakikī i ka haʻahaʻa haʻahaʻa. ʻO ka paʻakikī o ka ʻili, ka ikaika tensile, rigidity a me nā ikaika mechanical ʻē aʻe i ʻoi aku ka kiʻekiʻe ma mua o LDPE, kokoke i PP, ʻoi aku ka paʻakikī ma mua o PP, akā ʻaʻole maikaʻi ka hoʻopau ʻana o ka ʻili e like me PP.

[Nā hemahema nui] ʻino nā waiwai mechanical, ventilation maikaʻi ʻole, maʻalahi deformation, maʻalahi ka ʻelemakule, maʻalahi e lilo i brittle, liʻiliʻi liʻiliʻi ma mua o PP, maʻalahi i ke koʻikoʻi i ka haki ʻana, haʻahaʻa haʻahaʻa paʻakikī, maʻalahi e ʻohi. He mea paʻakikī ke paʻi, ke paʻi ʻia, pono ka mālama ʻana i ka hoʻokuʻu ʻana o ka ʻili, ʻaʻohe electroplating, a ʻeleʻele ka ʻili.

[Nā noi] Hoʻohana ʻia no nā kiʻiʻoniʻoni extrusion packaging, kaula, ʻeke i ulana ʻia, ʻupena lawaiʻa, paipu wai; ka hoʻoheheʻe ʻia ʻana o nā mea haʻahaʻa haʻahaʻa i kēlā me kēia lā a me nā pūpū, nā mea lawe ʻole i ka ukana, nā pahu plastik, nā pahu huli; extrusion blow molding containers, hollow products, bottles.