Nūhou

ʻOkoʻa kī–UHMW vs HDPE

ʻO UHMW a me HDPE nā polymers thermoplastic i loaʻa ke ʻano like.ʻO ka ʻokoʻa koʻikoʻi ma waena o UHMW a me HDPE ʻo ia ka UHMW i loko o nā kaulahao polymer lōʻihi me nā paona molekala kiʻekiʻe loa ʻoiai ʻo HDPE he kiʻekiʻe ikaika-a-density ratio.

Kū ʻo UHMW no Ultra High Molecular Weight polyethylene.Hōʻike ʻia ia e UHMWPE.ʻO ka huaʻōlelo HDPE ke kū nei no High Density Polyethylene.

He aha ka UHMW?

ʻO UHMW ka polyethylene kaumaha kiʻekiʻe loa.He ʻano polymer thermoplastic.Loaʻa i kēia pūhui polymer nā kaulahao polymer lōʻihi loa me nā kaumaha molekala kiʻekiʻe (ma kahi o 5-9 miliona amu).No laila, loaʻa iā UHMW ka mānoanoa molekala kiʻekiʻe loa.Eia naʻe, ʻaʻole hiki ke ʻike ʻia ke ʻano o kēia pūhui mai ka HDPE.

Na waiwai o UHMW

ʻO nā waiwai nui o ka UHMW penei.

He mea paakiki.

Loaʻa i ka ikaika hopena kiʻekiʻe

ʻAʻala ʻole a ʻono ʻole

Hiki ke hoʻoheheʻe kiʻekiʻe

Kūʻē māwae

ʻAʻole pili loa ia

ʻAʻohe mea ʻawaʻawa ka pūhui, a palekana.

ʻAʻole ia e komo i ka wai.

He lōʻihi loa nā kaulahao polymer a pau ma UHMW, a kau like lākou ma ka ʻaoʻao like.Hoʻopili ʻia kēlā me kēia kaulahao polymer me nā kaulahao polymer a puni ma o nā pūʻali Van der Waal.ʻO kēia ka mea paʻakikī loa ka hale holoʻokoʻa.

Hana ʻia ka UHMW mai ka polymerization o ka monomer, ka ethylene.Hoʻokumu ka polymerization o ka ethylene i ka huahana polyethylene kumu.He ʻokoʻa loa ke ʻano o ka UHMW mai ka HDPE ma muli o ke ʻano hana.Hana ʻia ʻo UHMW ma ke alo o ka metallocene catalyst (Hana ʻia ʻo HDPE ma ke alo o Ziegler-Natta catalyst).

Nā noi o UHMW

Ka hana ʻana o nā huila hōkū

ʻUila

Nā Rollers

Na Gears

Nā papa hoʻoheheʻe

He aha ka HDPE?

ʻO HDPE ka polyethylene kiʻekiʻe.He mea polymer thermoplastic.He kiʻekiʻe kiʻekiʻe kēia mea ke hoʻohālikelike ʻia me nā ʻano polyethylene ʻē aʻe.Hāʻawi ʻia ka mānoanoa o HDPE e like me 0.95 g/cm3.No ka mea he haʻahaʻa loa ka degere o ke kaulahao polymer i kēia mea, ua paʻa paʻa nā kaulahao polymer.ʻO kēia ka mea paʻakikī HDPE a hāʻawi i ke kūpaʻa hopena kiʻekiʻe.Hiki ke mālama ʻia ka HDPE ma lalo o nā mahana ma kahi o 120°C me ka loaʻa ʻole o ka hopena pōʻino.Hoʻololi kēia i ka HDPE autoclavable.

Nā waiwai o HDPE

ʻO nā waiwai koʻikoʻi o HDPE,

Paʻakiki Paʻa

Kūleʻa ka hopena kiʻekiʻe

Autoclavable

ʻOpaque a i ʻole ke ʻano translucent

Lakiō kiʻekiʻe ikaika-i-density

Kaumaha māmā

ʻAʻole a liʻiliʻi paha i ka absorption o ka wai

Kūleʻa kimemika

ʻO HDPE kekahi o nā mea plastic i maʻalahi loa e hana hou ʻia.Hoʻoholo kēia mau waiwai i nā noi o HDPE.

Nā noi o HDPE

ʻO kekahi mau noi koʻikoʻi e pili ana i kēia.

Hoʻohana ʻia ma ke ʻano he pahu no nā mea hoʻohui wai e like me ka waiū a no ka mālama ʻana i nā mea kemika e like me ka waiʻona.

No ka hana ʻana i nā ʻeke kūʻai plastik

Nā pā

Paipu paipu

Hoʻohana ʻia ʻo HDPE no ka ʻoki ʻana i nā papa

He aha nā mea like ma waena o UHMW a me HDPE?

Hana ʻia ʻo UHMW a me HDPE me nā monomers ethylene.

ʻO nā polymers thermoplastic ʻelua.

He ʻano ʻokoʻa ko lāua ʻelua.

Hōʻuluʻulu manaʻo–UHMW vs HDPE

Hana ʻia ʻo UHMW a me HDPE me nā monomers ethylene ma o ka polymerization.ʻO ka ʻokoʻa koʻikoʻi ma waena o UHMW a me HDPE ʻo ia ka UHMW i loko o nā kaulahao polymer lōʻihi me nā paona molekala kiʻekiʻe loa ʻoiai ʻo HDPE he kiʻekiʻe ikaika-a-density ratio.