Aia nā huahana PVC palupalu i kekahi mau mea plasticizer. E neʻe ana kēia mau plasticizers, unuhi a hoʻololi i nā pae like ʻole i ka wā o ka hoʻoili ʻana a me ka hoʻohana ʻana i nā huahana. ʻO ka nalowale o ka plasticizer ʻaʻole e hōʻemi wale i ka hana o nā huahana PVC, akā hoʻohaumia hoʻi i ka ʻili o nā huahana a me nā pilina. ʻO ka mea koʻikoʻi, e lawe mai ia i nā pilikia i ke kaiapuni a me ke olakino kanaka. No laila, ua lilo ka neʻe ʻana a me ka unuhi ʻana o ka plasticizer i mea keakea nui e kaohi ana i ka noi ākea o nā huahana PVC palupalu.

Ma ka ʻōnaehana PVC, me ka wax polyethylene oxidizedma mua o ka manawa, a ua hoʻemi ʻia ka torque hope. Loaʻa iā ia ka lubrication kūloko a me waho. Hiki iā ia ke hoʻomaikaʻi i ka dispersity o ka colorant, hāʻawi i nā huahana i kahi luster maikaʻi a hoʻomaikaʻi i ka hana hana.

ʻO nā hopena maikaʻi ʻole o ka neʻe ʻana a me ka wehe ʻana o ka plasticizer
1. Ke koʻikoʻi ka neʻe ʻana a me ka unuhi ʻana o ka plasticizer ma PVC, e loli nui nā huahana, e hopena i ka palupalu, ka ʻili a me ka haki ʻana o ka ʻili o nā huahana. Hoʻopilikia pinepine nā precipitates i ka pollution huahana a pili i ka hana lua o nā huahana. No ka laʻana, e neʻe ana nā molekika plasticizer i loko o nā mea i hoʻopili ʻia i ka wai wai PVC, a me ka PVC me ka ʻole o ka plasticizer e emi a paʻakikī, hiki ke alakaʻi i ka hemahema o ka hana wai. Ke hoʻopili ʻia nā huahana PVC palupalu me ka mea hoʻopili maʻamau e pili ana i ka solvent, e neʻe pinepine ka plasticizer i loko o nā huahana i ka papa hoʻopaʻa, e hopena i ka emi ʻana o ka ikaika hoʻopaʻa ʻana, e hopena i nā pilikia e like me ka nāwaliwali nāwaliwali a i ʻole degumming. Ke uhi ʻia a pena ʻia nā huahana PVC palupalu, ke kū nei lākou i ka pilikia o ka uhi ʻana a i ʻole ka hāʻule ʻana o ka papa pena ma muli o ka unuhi ʻana o ka plasticizer. ʻO ka paʻi PVC, ka ʻili ʻana i ka plasticizer he kapu nui i ka ʻinika a me ka ʻoihana paʻi.
2, I ke kaʻina hana o ka plasticizer precipitation ma PVC, e lawe ʻia kekahi mau ʻāpana, e like me nā granules pigment, nā ʻono, nā mea antistatic a me nā stabilizers. Ma muli o ka nalowale o kēia mau ʻāpana, e emi ana nā waiwai kino o nā huahana PVC, a e nalowale kekahi mau waiwai. E hoʻohaumia a hoʻopau kēia mau wai i nā mea i pili kokoke iā lākou. Inā hui pū ʻia nā huahana PVC palupalu a me ka polystyrene, e hoʻopili ka plasticizer mai PVC i ka hana o nā huahana polystyrene a hoʻonāwaliwali i nā huahana polystyrene.
ʻO ke ʻano o ka nalowale ʻana o ka plasticizer ʻO nā mea hoʻoheheʻe
, koe naʻe ka polyester a me nā mea plasticizer kaumaha molekala kiʻekiʻe, he mau mea molekala liʻiliʻi. Ke hoʻohui ʻia lākou i ka PVC, ʻaʻole lākou i polymerized ma ke kaulahao polymer PVC, akā ua hui pū ʻia me nā molekala PVC e ka hydrogen bond a i ʻole van der Waals ikaika e mālama i kā lākou mau waiwai kemika kūʻokoʻa.
Ke hoʻopili ʻia ka PVC palupalu me ka mea paʻa (ke kinoea, ka wai a me ka paʻa paʻa) no ka manawa lōʻihi, e hoʻonā mālie ʻia ka plasticizer mai ka PVC a komo i ka waena. E like me ka like ʻole o ka media contact, hiki ke hoʻokaʻawale ʻia nā ʻano poho o ka plasticizer i loko o ka volatilization loss, extraction loss and migration loss.
ʻO ke kaʻina hana pohō o ka volatilization plasticizer, ka unuhi ʻana a me ka neʻe ʻana he ʻekolu pae kumu:
(1) Hoʻolaha ka plasticizer i ka ʻili o loko;
(2) Hoʻololi ka ʻili o loko i kahi kūlana "recumbent";
(3) Hoʻopuehu mai ka ʻili.

ʻO ka nalowale o ka plasticizer e pili ana i kona ʻano molekala ponoʻī, paona molekala, kūpono me ka polymer, medium, environment a me nā mea ʻē aʻe. ʻO ka volatilization o ka plasticizer e hilinaʻi nui ʻia i kona kaumaha molecular a me ka mahana ambient, ʻo ka extractability e hilinaʻi nui ʻia i ka solubility o ka plasticizer i ka waena, a pili ka mobility i ka hoʻohālikelike ʻana o ka plasticizer a me PVC. Hiki ke hana ʻia ka diffusion o ka plasticizer ma PVC ma lalo o nā kūlana o ka polymer a me ka medium ʻaʻole e komo i loko o ka polymer, a i ʻole ma lalo o nā kūlana o ka medium e infiltrate i ka polymer. ʻO nā hoʻololi like ʻole a me nā hopena o ka ʻili polymer e pili i ka diffusion o ka plasticizer. ʻO ka diffusion interfacial o ka plasticizer he kaʻina hana paʻakikī, e pili ana i ka pilina o waena, PVC polymer a me plasticizer.
I alakaʻi ai kumumea o plasticizer Polenekia, a pōʻalo
1. pili hakakino kaumaha a me ka hakakino 'ole o ka plasticizer
ka nui o ka hoahanau hakakino kaumaha o plasticizer, i ka nui o ka buke o nā pūʻulu na i loko o ka lātoma, ka oi pilikia ia mea no ia e eiei? I loko o plasticized PVC, ʻoi aku ka liʻiliʻi o ka hiki ʻana i ka ʻili, a ʻoi aku ka haʻahaʻa o ka ʻili a me ka neʻe ʻana. No ka loaʻa ʻana o ka lōʻihi maikaʻi, pono e ʻoi aku ka nui o ke kaumaha o ka plasticizer ma mua o 350. ʻO nā polyesters a me ka phenylpolyacid esters (e like me ka trimellitic acid esters) plasticizers me kahi paona molekala pili i ʻoi aku ma mua o 1000 maikaʻi loa ka lōʻihi.
2. ʻO ka wela o ke kaiapuni
ʻO ke kiʻekiʻe o ka wela ambient o nā huahana PVC, ʻoi aku ka ikaika o ka neʻe ʻana o Brownian o nā molekala, a ʻoi aku ka ikaika ma waena o nā molekele plasticizer a me nā macromolecules PVC, kahi e maʻalahi ai nā molekole plasticizer e hoʻopuehu i ka ʻili o ka huahana. ka waena.
3. Plasticizer maʻiʻo
Ma keʻano laulā, ʻoi aku ka kiʻekiʻe o ka ʻike o nā ʻāpana plasticizer i loko o ke ʻano, ʻoi aku ka nui o nā molekole plasticizer i loko o ka plasticized PVC a ʻoi aku ka nui o nā molekala plasticizer ma ka ʻili o ka huahana. ʻOi aku ka maʻalahi o ka hopu ʻia ʻana o ka plasticizer e ka mea hoʻopili a lawe ʻia a neʻe paha, a laila kahe nā molekole plasticizer i loko a hoʻohui ʻia mai ke kiʻekiʻe kiʻekiʻe a i ka haʻahaʻa haʻahaʻa. I ka manawa like, ʻoi aku ka liʻiliʻi a me ka liʻiliʻi o ka plasticizers i PVC, ʻoi aku ka nui o ka hiki ke hoʻohālikelike ʻia a me ka hana ma waena o nā molekala plasticizer, i mea e hoʻonāwaliwali ai i ka ikaika paʻa ma waena o kekahi mau molekala plasticizer a me PVC macromolecules a hana i kā lākou neʻe ʻana a me ka diffusion i loko. PVC maʻalahi. No laila, ma kekahi ʻano, ʻo ka hoʻonui ʻana i ka ʻike plasticizer e maʻalahi ka hoʻolaha ʻana o ka plasticizer.
4. ʻO ke kikowaena
ʻO ka unuhi a me ka neʻe ʻana o ka plasticizer ʻaʻole pili wale i nā waiwai o ka plasticizer ponoʻī, akā pili pū kekahi me ka mea i hoʻopili ʻia. ʻO nā waiwai physicochemical o ka wai i hoʻopili ʻia me ka plasticized PVC nā kumu nui e pili ana i ka unuhi ʻana o ka plasticizer. He mea maʻalahi ka lawe ʻia ʻana o nā plasticizer maʻamau e ka ʻaila a i ʻole nā ​​​​mea hoʻoheheʻe ʻaila, akā paʻakikī ke lawe ʻia e ka wai.
5. Manawa
E like me ka palapala, pili ka neʻe ʻana o DOP i ke kiʻi PVC i ka manawa. I ka pae mua o ka neʻe ʻana, ʻoi aku ka wikiwiki o ka wikiwiki. He laina laina ka neʻe ʻana o ka plasticizer i ka ʻili me ke kumu huinahā o ka manawa neʻe. A laila, me ka hoʻonui ʻana o ka manawa, e emi mālie ka neʻe ʻana a hiki i ke kaulike ma hope o kekahi manawa (720h hema a ʻākau).

Nā ana e hoʻonā i ka ua a me ka neʻe ʻana o PVC plasticizer
1. Hoʻohui i ka polyester plasticizer ʻO ka
polyester plasticizer he pilina maikaʻi me DOP a me nā mea plasticizer molekala liʻiliʻi. Ke loaʻa ka nui o ka polyester plasticizer i ka PVC plasticizer, hiki iā ia ke huki a hoʻoponopono i nā plasticizer ʻē aʻe ʻaʻole e pālahalaha i ka ʻili o nā huahana PVC, i mea e hōʻemi ai a pale i ka neʻe ʻana a me ka unuhi ʻana o ka plasticizer.
2. Hoʻohui i nā nanoparticles
Hiki i ka hoʻohui ʻana o nā nanoparticles ke hōʻemi i ka nui o ka nalowale o ka mobility i ka PVC palupalu a hoʻomaikaʻi i ka hana lawelawe a me ke ola lawelawe o nā mea PVC palupalu. ʻOkoʻa ka hiki o nā nanoparticles like ʻole ke kāohi i ka neʻe ʻana o ka plasticizer, a ʻoi aku ka maikaʻi o ka nano SiO2 ma mua o ka nano CaCO3.

3. E hoʻohana i nā wai ionic

Hiki i ka wai Ionic ke hoʻomalu i ka mahana hoʻololi aniani o ka polymer ma kahi ākea nui. ʻO ka modulus elastic o ka mea i hoʻohui ʻia me ka wai ionic e like me ka wā i hoʻohana ʻia ai ka DOP e like me ka plasticizer. ʻO ka wai Ionic kahi mea hoʻololi kūpono no ka plasticizer ma muli o kona volatilization haʻahaʻa i ka wela kiʻekiʻe, haʻahaʻa leachability a me ka paʻa UV maikaʻi.
4. Ka uhi ʻana o ka
ʻili i ka
5. Ka hoʻopili ʻana o ka ʻili
I ka wai me ka hoʻololi ʻana i ka māhele hoʻololi kūpono, ua hoʻololi ʻia ka ʻili o ka plasticizer me ka sodium sulfide. Ma lalo o ka hana o ka māmā, ʻo ka ʻili o nā huahana PVC e hana i kahi ʻōnaehana pūnaewele, hiki ke pale pono i ka neʻe ʻana o ka plasticizer. ʻO ka PVC palupalu i mālama ʻia e kēia ʻano kūpono no ka noi ʻana i nā mea lapaʻau a me nā mea pili.
6. Hoʻololi i
ka ʻili Hiki ke hoʻomalu ʻia ka leaching o ka plasticizer i ka polymer solution ma ka hoʻoponopono ʻana i nā ʻano o ka ʻili polymer. Ma waena o nā ʻenehana hoʻololi he nui, ʻo ka grafting wai-soluble polymer ma ka ʻili kekahi o nā kuhikuhi nui.
Manaʻo ʻia e hoʻohana ʻia ke ʻano o ka grafting PEG ma ka ʻili o ka PVC palupalu e hoʻonui ai i ka hydrophilicity o ka ʻili substrate, i mea e pale ai i ka leaching o ka plasticizer.
Eia kekahi, me ka hoʻohana ʻana i ka catalyst transfer phase a me ka anion thiosulfate e hoʻololi i nā ʻātoma chlorine i PVC i ka ʻōnaehana hoʻonā wai hiki ke hoʻonui i ka hydrophilicity ili a pale i ka leaching a me ka hoʻololi ʻana o ka plasticizer i nā mea hoʻoheheʻe like ʻole e like me hexane.
Ka hopena:
ʻO ka unuhi a me ka neʻe ʻana o ka plasticizer kekahi o nā pilikia koʻikoʻi i ka hoʻohana ʻana i nā huahana PVC palupalu. Inā ʻaʻole hiki ke hoʻoponopono maikaʻi ʻia, ʻaʻole ia e hoʻopilikia wale i ka hana lawelawe a me ka hopena o nā huahana PVC palupalu, akā lawe pū kekahi i kekahi pōʻino i ka nohona kanaka a me ke olakino kanaka. No laila, ua ʻoi aku ka manaʻo o kēia pilikia.
ʻO Qingdao Sainuo Chemical Co., Ltd. He mea hana mākou no ka wax PE, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc / Calcium Stearate .... Ua hala kā mākou huahana i ka REACH, ROHS, PAHS, FDA hoʻāʻo. ʻO Sainuo, e hoʻokipa i kāu nīnau! Paena pūnaewele：https://www.sanowax.com
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