Polyvinyl Chloride (PVC) Nā Pahu Pahu - Hoʻomohala, Hoʻohana, Hoʻolako

Kūkākūkā kēia pepa i ka hoʻomohala ʻana o ka polyvinyl chloride (PVC) ka pauka ma ka home a ma waho, e hoʻolauna i ke kumu kumu, ka ʻenehana hoʻomākaukau a me ka papa kuhikuhi hana o PVC ka pauda, ​​a hana i kahi hoʻolauna kūpono i kāna noi i ka anti-corrosion a me ka hoʻonani ʻana o nā paipu kila.

Foreword

ʻO ka uhi ʻana o ka pauka he ʻano 100% paʻa paʻa. He ʻokoʻa ia mai ka hoʻoheheʻe maʻamau a me ka uhi ʻana i ka wai, ʻaʻole i ka solvent a i ʻole ka wai ma ke ʻano he dispersion medium, akā me ke kōkua o ka ea ma ke ʻano he dispersion medium. I ka wā kahiko decade, nā aupuni o ka honua e hana i nā hale hana coatings a me nā ʻoihana i hoʻokumu ʻia e ka haumia o ke kaiapuni e hoʻonui ana i ka nānā, hoʻoikaika i nā mea paʻa i ka hoʻohana ʻana i nā solvents. Ma ka hopena o ke kanawalu ma Europe a me ka United States i loko o ka uhi manufacturing, hana, kūkulu palapala noi ua kapu loa i ka hoʻohana 'ana i ka solvents a me ka hoʻokuʻuʻana, kekahi mau wahi o ka United States no hoi ma ke ano o na kanawai promulgated ka solvent hoʻohana palena kānāwai, nā mea o ka nui e like me 66 'atikala, a Europe a me ʻAmelika Hui Pū ʻIa i ka pahuhopu "ʻekolu E":

(1) Hoʻololi Kaiaola
(2) Mālama i ka ikehu
(3) Pono Waiwai

I kēia pōʻaiapili, ua ʻike ʻia ka ulu wikiwiki ʻana o ka pauka ma muli o ko lākou ʻano pollution-free, hoʻohana kiʻekiʻe o nā mea maka, a me nā pono he nui. Ma ke Komohana Europe a me ʻAmelika ʻĀkau, hiki i ka 10% ka ulu makahiki o ka pauka pauka. Eia kekahi, i nā makahiki i hala iho nei, ua ʻike pū ʻo Kina i ka ulu ʻana o ka makahiki he 100% no nā uhi pauka.

Polyvinyl chloride (PVC) Ua makemake nui ʻia nā mea hoʻohana e nā mea hoʻohana ma muli o ko lākou mau mea hoʻonaninani ʻokoʻa a me ke kū ʻana o ka wā a me ka corrosion. I kēia manawa, PVC nā pale pauka ua hoʻohana nui ʻia ma nā ʻano ʻano like ʻole me ka pale ʻana i ke kaula me ka paipu kila, ka paipu pale ʻana i ka corrosion kemika, ka paipu hoʻoheheʻe wai, nā paipu no ka ʻaila a me ka ʻoihana kemika, nā hōʻailona alanui, nā pou kukui, ke alaloa guardrail etc.

Kaʻina Hoʻolālā

1. Kumu kumu o PVC ka uhi lepo

PVC hana ʻia ka pauda PVC resin e like me ka mea kumu me ka plasticizer, stabilizer, filler a me nā mea hoʻohui ʻē aʻe. Hōʻike ʻia ke kumu kumu ma ka Papa (Keʻokeʻo keʻokeʻo).

2.Preparation Technology o PVC ka uhi lepo

ʻO ke ʻano hoʻomākaukau o PVC ka pauda, ​​ua hōʻike ʻia kāna hana ma ke Kiʻi.

3. Product Performance Analysis ho'āʻo nā hualoaʻa

Ma hope o repeka noiʻi a me ka hoʻomohala ʻana, hoʻāʻo, a hoʻohālikelike ʻia me nā huahana i lawe ʻia mai, kekahi o ka hana o PVC Ua hōʻea a ʻoi aku paha ka uhi pauda ma mua o ka hana o nā huahana i lawe ʻia mai o ia ʻano like, e ʻike i ka papaʻaina.

Hoʻohana o PVC Paipu kila i uhi ʻia i ka pauda

PVC ʻO ke kiʻiʻoniʻoni pani pauda he semi-paʻakikī thermoplastic state. Ke hoʻohālikelike ʻia me ka polyethylene, liʻiliʻi ka ʻokoʻa o ka wela hoʻoheheʻe a me ka decomposition, no laila ke hoʻohana ʻia, pono e nānā pono i ka mahana a me ka manawa. Ma muli o kona hoʻopili maikaʻi ʻana, ma mua o ke kuʻu ʻana, pono e uhi ʻia me kahi papa o ka primer e hoʻonui ai i ka pili o ka uhi.

1. ʻO nā waiwai nui o ka uhi

• PVC ʻO nā huahana uhi pauda: nā mea hoʻonani i loko o ka hale a me ka lole wai ʻole, nā pahu kemika, nā papahele, ka uhi ʻana i ke kiʻi ʻoniʻoni, ka hose māla a me ka insulation uea.
• Hoʻohana nā ʻano hana i ka hui ʻana maloʻo, hoʻoheheʻe injection, extrusion hollow blow molding, calendering, a moena wai luu ana.
• Pākuʻi ahi (hoʻohui ʻia i ka pale ahi)
• ʻO ka wai a me ka pale kemika, maikaʻi ke kūpaʻa ʻelemakule.

2.Main hana hana a me ka laulā noi

PVC Hoʻohana nui ʻia ka pauka i loko o ka mesh mesh, ka hale mālama anu, nā lako kila, ka paipu kila a pēlā aku. ʻO ke kaʻina hana uhi e like me kēia:

(1) Hoʻomaʻamaʻa mua: ka mālama ʻana i ka phosphate - ka wehe ʻana i ka ʻōpala, phosphating.
2
(3) ka hoʻoheheʻe electrostatic a i ʻole ka hoʻoheheʻe ʻia ʻana o ka moena.
4. preheating wela: 230-290 ℃, 10min, kiʻi mānoanoa: 500um;
A i ʻole 290 ℃, 5min me ka ʻole preheating, kiʻiʻoniʻoni mānoanoa 200um.

PVC ʻO ka paipu kila i uhi ʻia he mea pono i ka petrochemical anti-corrosion, pono ma ke alaloa guardrail, pono i ka pou, ma hope o nā makahiki he nui o nā hopena noi e hōʻike ana PVC ʻO ka pale ʻana i ka wai, ʻoi aku ka maikaʻi o ke kūʻokoʻa o ka lewa, hiki ke loaʻa ma mua o 15 mau makahiki, hoʻopau i ka pilikia o ka pena palaki pinepine, ka hoʻohālikelike piha ʻana o kona kumukūʻai haʻahaʻa, hoʻohana ʻia i ka anti-corrosion kemika, hiki ke hoʻohana ʻia no ʻelima mau makahiki, no ka mea hoʻohana e hoʻoponopono i ka pilikia anti-corrosion.