Lubricant waho PVC: ʻokoʻa ma waena o Fischer Wax a me PE Wax

Wax polyethylene, ʻike ʻia hoʻi ʻo polymer wax, hoʻohana nui ʻia ma muli o kona kūpaʻa anuanu maikaʻi loa, ke kū ʻana i ka wela, ke kūpaʻa kemika, a me ke kūpaʻa ʻaʻahu.I ka hana maʻamau, hiki ke hoʻohui pololei ʻia kēia wax i ka hana polyolefin ma ke ʻano he mea hoʻohui, hiki ke hoʻonui i ka luster a me ka hana ʻana o ka huahana.Ma ke ʻano he lubricant, loaʻa iā ia nā waiwai kemika paʻa a me nā waiwai uila maikaʻi.Ke hoʻohālikelike ʻia me PVC a me nā lubricants waho ʻē aʻe, ʻoi aku ka ikaika o ka lubrication kūloko o ka polyethylene wax.

Wax Fischer TropschʻO ka nui o ka linear, saturated high carbon alkanes me kahi paona molekala pili ma waena o 500 a me 1000, kahi e hāʻawi ai i kēia kemika me kahi ʻano aniani maikaʻi, wahi hoʻoheheʻe kiʻekiʻe, ākea hoʻoheheʻe haʻahaʻa, haʻahaʻa ʻaila haʻahaʻa, komo haʻahaʻa, haʻahaʻa haʻahaʻa, hoʻoheheʻe haʻahaʻa. viscosity, paʻakikī, pale pale, a me ke kūpaʻa kiʻekiʻe.

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ʻO ka ʻokoʻa nui ma waena o Fischer Tropsch wax synthetic wax a me polyethylene wax maʻamau ʻo ia:
(1) Kaumaha molekula.ʻOi aku ka haʻahaʻa o ke kaumaha molekala o Fischer Tropsch wax ma mua o ko PE wax, me ka liʻiliʻi o nā kaulahao lālā a me ka crystallinity kiʻekiʻe.He maʻalahi ke komo i loko o nā kaulahao macromolecular viscosity kiʻekiʻe, e hōʻemi nui ana i ka viscosity melt.He haʻahaʻa ka neʻe ʻana i ka wā o ka hoʻoili ʻana a me ka hopena lubrication maopopo i ka pae hope.
(2) ʻO Fischer Tropsch wax he alkane pili pono ʻole i loaʻa nā paʻa pālua, he mana antioxidant ikaika, a he kūpaʻa maikaʻi ka huahana.

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(3) He haʻahaʻa loa ka viscosity o Fischer Tropsch wax ma mua o ko PE wax.Ma kahi o 10 wale nō. Hiki i ka liʻiliʻi liʻiliʻi ke hoʻokō i ka hopena lubrication like.ʻO ka hoʻohana ʻana he 70-80% wale nō o ka wax PE.He kūpono maikaʻi ko Fischer Tropsch wax me PVC a hiki ke hoʻohana ʻia e like me nā lubricants o loko a me waho.Hiki ke hoʻohana ʻia e like me ka lubricant kūloko maikaʻi e hoʻomalu pono i nā kūlana shear, hoʻoikaika i ka kahe, hoʻomalu i ka friction a me nā waiwai hoʻoheheʻe, a laila e hoʻomaikaʻi ai i ke kūpaʻa wela.I ka manawa like, ma muli o kona crystallinity kiʻekiʻe a me ke ʻano laina laina kiʻekiʻe, hiki i ka wax Fischer Tropsch ke hiki i nā huahana PVC ke hoʻokō i nā waiwai kino a me ka hoʻoponopono ʻana.E like me nā pono, hiki i ke kaʻina hana Fischer Tropsch ke synthesize i nā alkanes me nā lōʻihi kaulahao like ʻole e hoʻololi i ke kaumaha molekala o ka huahana hope a hana i kahi ʻano huahana.

ʻO ka hana nui o ka hana o nā lubricants waho
ʻO ka maʻamau, ʻo ka lubricant waho o PVC he wahi hoʻoheheʻe kiʻekiʻe me ka polarity ʻole a i ʻole polarity haʻahaʻa, kahi kiʻekiʻe o ka heheʻe o 50-200 ℃, a me ke kaumaha molekala nui.
ʻO ke ʻano o ka hana ʻo ia ka hoʻohana ʻana i kona kūlike ʻole e hana i kahi papa lubricating ma waho o ka ili o ka PVC hehee a i ʻole ka ʻāpana kahe, e hoʻomaikaʻi i ka friction ma waena o nā ʻili o nā ʻāpana kahe a ma waena o ka hehee a me ka ʻili metala.He maʻalahi ka hoʻoheheʻe ʻana i nā wela kiʻekiʻe, akā ʻaʻole maʻalahi ka hoʻoheheʻe ʻana i ka lumi wela.

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Ka hopena o nā lubricants i nā huahana
ʻO ka lubricant waho, ka plasticizing mai ka wikiwiki a i ka lohi, ka hana huahana mai ke kiʻekiʻe a i ka haʻahaʻa, a me ka hiki ke kahe mai ka maikaʻi a i ka maikaʻi.
I ka pae mua o ka hana extrusion, i ka wā e hoʻoheheʻe ai nā ʻāpana resin i ka friction me kekahi i kekahi, ʻoi aku ka kiʻekiʻe o ka hoʻoheheʻe ʻana o ka lubrication waho a ʻaʻohe hoʻoheheʻe, ʻaʻole ia e hoʻopaneʻe i ka plasticization.I ka waena a me ka hope o ka hana ʻana, piʻi ka mahana o ka hoʻoheheʻe ʻana, a uhi ʻia ka lubricant waho i hoʻoheheʻe ʻia ma waena o nā mea hoʻoheheʻe, e hoʻopaneʻe pono i ka plasticization a me ka hoʻomaikaʻi ʻana i ka adhesion me ka metala, e pale ana i ka plasticization nui o ka heheʻe a hāʻawi i ka hana demolding maikaʻi.
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