Polyvinyl chloride (PVC) Iingubo zePowder - Phuhlisa, iSicelo, uNikezo

Eli phepha lixoxa ngophuhliso lwepolyvinyl chloride (PVC) i-powder coatings ekhaya nakwamanye amazwe, yazisa ifomula esisiseko, iteknoloji yokulungiselela kunye nesalathisi sokusebenza PVC i-powder coatings, kwaye yenza isingeniso esiyimfuneko kwisicelo sayo kwi-anti-corrosion kunye nokuhlobisa imibhobho yensimbi.

I ngcaciso

Ukugquma umgubo luhlobo lwe-100% yomgubo oqinileyo. Ihluke kwi-coating ye-solvent-based-based-coating kunye ne-soluble water-soluble, kungekhona kwi-solvent okanye amanzi njenge-dispersion medium, kodwa ngoncedo lomoya njenge-dispersion medium. Kwixesha elidlulileyo decade, oorhulumente behlabathi ukuvelisa iifektri zokugquma kunye namashishini okubangelwa ungcoliseko lokusingqongileyo ukwandisa ingqalelo, yomeleza izithintelo ekusebenziseni izinyibilikisi. Ekupheleni kweminyaka yamashumi asibhozo Euri-ope kunye ne-United States kwimveliso yokugquma, imveliso, isicelo sokwakha sithintelwe ngokungqongqo ukusetyenziswa kwezinyibilikisi kunye nokukhutshwayo, ezinye iindawo zase-United States nazo ngendlela yemithetho ebhengezwe kumthetho wokunciphisa ukusetyenziswa kwe-solvent, izibonelelo zabaninzi njenge-66 amanqaku, kunye Euri-ope kunye ne-United States zabeka phambili "iinjongo ze-E" ezintathu:

(1) Ukuguqulwa kweEcology
(2) Ukugcina Amandla
(3) Inzuzo yezoqoqosho

Kulo mongo, iingubo zomgubo ziye zakhula ngokukhawuleza ngenxa yendalo yazo yokungangcoliseki, ukusetyenziswa okuphezulu kwezinto eziluhlaza, kunye neenzuzo ezininzi. Ngokukodwa eNtshona Euri-ope kunye noMntla Melika, izinga lokukhula lonyaka leengubo zomgubo lifikelela kwi-10%. Ngaphezu koko, kwiminyaka yakutshanje, i-China ibone ukukhula okumangalisayo konyaka kwe-100% yeengubo zomgubo.

Polyvinyl chloride (PVC) IiNgxobhozo zePowder zithandwa kakhulu ngabasebenzisi ngenxa yeempawu zabo ezikhethekileyo zokuhombisa kunye nemozulu kunye nokuxhathisa umhlwa. Ngoku, PVC Ipeyinti zisetyenziswa kakhulu kwiinkalo ezahlukeneyo kubandakanywa ukukhuselwa kwentambo kunye nombhobho wensimbi, umbhobho wokumelana neekhemikhali, umbhobho wokuhambisa amanzi amdaka, imibhobho yepetroleum kunye neshishini lemichiza, iimpawu zendlela, izibonda zokukhanyisa, i-highway guardrail njl.

Inkqubo yoPhuhliso

1.Ifomula esisiseko ye PVC yengubo

PVC umgubo wenziwa PVC i-resin njengesiseko sezinto kunye neplastiki, i-stabilizer, i-filler kunye nezinye izongezo. Ifomula esisiseko iboniswe kwiThebhile (Umbala oMhlophe).

2.Preparation Technology of PVC yengubo

Indlela yokulungiselela ye PVC i-powder coating, inkqubo yayo iboniswe kuMzobo.

3.Iziphumo zoVavanyo lweNtsebenzo yeMveliso

Emva kwe-repeuphando oluhleliweyo kunye nophuhliso, uvavanyo, kwaye kuthelekiswa neemveliso ezivela kumazwe angaphandle, ezinye zentsebenzo ye PVC umgubo wokwaleka ekugqibeleni ufikelele okanye ugqithise ukusebenza kweemveliso ezisuka kumazwe angaphandle zohlobo olufanayo, bona itafile.

Ukusetyenziswa kwe PVC Umbhobho weNtsimbi oqatywe ngomgubo

PVC ifilimu yokugquma umgubo yimeko ye-thermoplastic enzima. Xa kuthelekiswa ne-polyethylene, iqondo lokushisa elinyibilikayo kunye nokwahlukana kweqondo lokushisa lincinci, ngoko xa lisetyenziswa kufuneka lihlawule ingqwalasela engqongqo kubushushu bokubhaka kunye nexesha. Ngenxa yokuncamathela kwayo kakubi, ngaphambi kokudipha, ngokuqhelekileyo kufuneka igqutywe ngomaleko we-primer ukunyusa ukuncamathela kwengubo.

1.Iipropati eziphambili zokugquma

• PVC iimveliso zokugquma umgubo ziquka: izixhobo zokuhombisa zangaphakathi kunye nelaphu elingangeni manzi, iitanki zekhemikhali, imigangatho, ifilimu yokupakisha yokugquma, ithumbu legadi kunye nokugquma ucingo.
• Iindlela zokusetyenzwa zamkela ukuxuba okomileyo, isitofu sokubumba, ukubunjwa kwe-extrusion hollow blow, i-calendering, kunye ibhedi emanzi ukudipha.
• I-retardant yomlilo (yongeziweyo i-flame retardant)
• Ukuxhathisa amanzi kunye neekhemikhali, ukumelana nokuguga okulungileyo.

2.Indlela yokwakha engundoqo kunye noluhlu lwesicelo

PVC umgubo wokwaleka usetyenziswa ikakhulu kumnatha wesinyithi, ishedi yokugcina ebandayo, ifenitshala yentsimbi, umbhobho wentsimbi njalo njalo. Inkqubo yokwaleka ikakhulu ngolu hlobo lulandelayo:

(1) Unyango lwangaphambili: unyango lwe-phosphate - ukususwa kwe-rust, i-phosphating.
(2) Ukugquma i-Primer: Dipha i-primer, emva kokumisa, ubukhulu befilimu ye-primer yi-5-10μm,
(3) ukutshiza nge-electrostatic okanye ukudipha ibhedi emanzi.
4. preheating lobushushu :230-290℃,10min, ubukhulu film: 500um;
Okanye 290 ℃, 5min ngaphandle preheating, film ubukhulu 200um.

PVC umbhobho wentsimbi egqunyiweyo uluncedo kwi-petrochemical anti-corrosion, iluncedo kuhola wendlela, iluncedo kwipali, emva kweminyaka emininzi yeziphumo zesicelo zibonisa ukuba PVC ukugquma ukumelana namanzi, ukumelana nokuguga emoyeni kulungile, kufumaneka ngokubanzi iminyaka engaphezu kwe-15, kuphelisa ingxaki yepeyinti yebrashi rhoqo, uthelekiso olubanzi lwexabiso layo eliphantsi, elisetyenziswe kwimichiza yokuchasana nomhlwa, ingasetyenziselwa iminyaka engaphezu kwemihlanu, ukuze umsebenzisi asombulule ingxaki yokuchasana nomhlwa.