HDPEa me PVC

He palupalu loa nā mea palakiko a palupalu hoʻi. Hiki ke hoʻoheheʻe ʻia, kaomi ʻia a hoʻolei ʻia paha i nā ʻano like ʻole. Hana nui ʻia lākou me ka ʻaila a me ke kinoea kūlohelohe. ʻElua ʻano palakiko; nā thermoplastics a me nā polymers thermoset.

ʻOiai hiki ke hoʻoheheʻe ʻia a hoʻoponopono ʻia nā polymers thermoset i hoʻokahi manawa wale nō a noho paʻa i ka wā e hoʻomaʻalili ʻia ai, hiki ke hoʻoheheʻe ʻia a hoʻoponopono pinepine ʻia nā thermoplastics a no laila hiki ke hana hou ʻia.

Hoʻohana ʻia nā Thermoplastics e hana i nā ipu, nā ʻōmole, nā pahu wahie, nā papa ʻaina a me nā noho pelu, nā hale hoʻoulu, nā ʻeke palakiko, nā mea hoʻokaʻawale kaula, nā panela pale pōkā, nā mea pāʻani loko wai, ka upholstery, nā lole a me nā plumbing.

Aia kekahi mau ʻano thermoplastics, a ua hoʻokaʻawale ʻia lākou he amorphous a semi-crystalline paha. ʻElua o lākou he amorphousPVC(polyvinyl chloride) a me ka semi-crystalline HDPE (high density polyethylene). He mau polymers waiwai nā mea ʻelua.

ʻO ka Polyvinyl chloride (PVC) kahi polymer vinyl kūʻai haʻahaʻa a paʻa hoʻi i hoʻohana ʻia i nā papahana kūkulu. ʻO ia ke kolu o ka plastic i hoʻohana nui ʻia ma hope o ka polyethylene a me ka polypropylene a hoʻohana nui ʻia i ka hana ʻana i nā paipu. He māmā a ikaika hoʻi, e lilo ia i mea kaulana loa i nā noi plumbing ma luna o ka honua a me lalo o ka honua. He paʻa loa ia a kūpono no ke kanu pololei ʻana a me ke kau ʻana me ka ʻauwaha ʻole.

Ma ka ʻaoʻao ʻē aʻe, ʻo ka polyethylene density kiʻekiʻe (HDPE) he thermoplastic polyethylene i hana ʻia mai ka petroleum. Loaʻa iā ia ka ikaika kiʻekiʻe, ʻoi aku ka paʻakikī, a hiki ke kū i nā mahana kiʻekiʻe.
He kūpono nā paipu HDPE no ka hoʻohana ʻana i nā paipu ma lalo o ka honua, no ka mea, ua ʻike ʻia e hoʻomāmā a omo i nā nalu haʻalulu, a laila e hōʻemi ana i nā piʻi e hiki ke hoʻopilikia i ka ʻōnaehana. Loaʻa iā lākou ke kūpaʻa maikaʻi loa i ke kaomi ʻana o nā hui a ʻoi aku ka pale ʻana i ka abrasion a me ka wela.

ʻOiai he ikaika a paʻa nā mea ʻelua, ʻokoʻa ko lākou ikaika a me nā ʻano ʻē aʻe. Ma kekahi ʻaoʻao, ua hoʻolālā ʻia lākou e kū i nā pilikia like ʻole. No ka hoʻokō ʻana i ka helu kaomi like me ka paipu PVC, pono ka paia o ka paipu HDPE he 2.5 mau manawa mānoanoa ma mua o ka paipu PVC.

ʻOiai ua hoʻohana ʻia nā mea ʻelua no ka hana ʻana i nā mea puhi ahi,HDPEua ʻike ʻia he ʻoi aku ka kūpono a me ka palekana e hoʻohana no ka mea hiki iā ia ke puhi i nā mea puhi ahi i ke kiʻekiʻe kūpono. Inā ʻaʻole ia e hoʻomaka i loko o ka pahu a haki, ʻaʻole e haki ka pahu HDPE me ka ikaika e like me ka pahu PVC.

I ka hōʻuluʻulu ʻana:

1. ʻO ka Polyvinyl Chloride (PVC) kahi polymer vinyl paʻa a kūʻai ʻole ʻia i hoʻohana ʻia i nā papahana kūkulu hale, ʻoiai ʻo High Density Polyethylene (HDPE) kahi thermoplastic polyethylene i hana ʻia mai ka petroleum.
2. ʻO Polyvinyl chloride ke kolu o ka plastic i hoʻohana nui ʻia, a ʻo ka polyethylene kekahi o nā plastics i hoʻohana nui ʻia.
3. He amorphous ka PVC, ʻoiai he semi-crystalline ka HDPE.
4. He ikaika a paʻa nā mea ʻelua, akā he ʻokoʻa ka ikaika a me nā noi like ʻole. ʻOi aku ke kaumaha a me ka ikaika o ka PVC, ʻoiai ʻoi aku ka paʻakikī o ka HDPE, ʻoi aku ka pale ʻana i ka abrasion a ʻoi aku ka pale ʻana i ka wela.
5. Ua ʻike ʻia ua hiki i nā paipu HDPE ke kāohi a hoʻopili i nā nalu haʻalulu, no laila e hōʻemi ana i nā piʻi e hiki ke hoʻopilikia i ka ʻōnaehana, ʻoiai ʻaʻole hiki i ka PVC.
6. ʻOi aku ka maikaʻi o HDPE no ke kau ʻana i ke kaomi haʻahaʻa, ʻoiai ʻoi aku ka maikaʻi o PVC no ke kanu pololei ʻana a me ke kau ʻana i nā ʻauwaha ʻole.