Chloride Polyvinyl (PVC) Dahaarka budada - Horumarinta, Codsiga, Bixinta

Warqadani waxay ka hadlaysaa horumarinta polyvinyl chloride (PVC) daboolka budada ah ee guriga iyo dibaddaba, waxay soo bandhigaysaa caanaha aasaasiga ah, tignoolajiyada diyaarinta iyo tusmada waxqabadka PVC dahaarka budada ah, oo ka dhigaya hordhac lagama maarmaanka u ah codsigeeda ee ka-hortagga daxalka iyo qurxinta tuubooyinka birta.

Horudhac

Daahan budada ah waa nooc ka mid ah 100% budada adag. Way ka duwan tahay dahaarka guud ee dareeraha ku salaysan iyo daahan biyo-milmi leh, ma aha in dareeraha ama biyaha sida dhexdhexaad ah kala firdhiso, laakiin iyadoo la kaashanayo hawada sida dhexdhexaad ah kala firdhiso. Tobankii sano ee la soo dhaafay, dawladaha adduunka si ay u soo saaraan warshadaha daahan iyo ganacsiyada ay sababtay wasakhowga deegaanka sii kordhaya dareenka, xoojiyay xaddidaadda isticmaalka dareerayaasha. By dhamaadka siddeetameeyadii ee Europe iyo Maraykanka ee wax soo saarka daahan, wax soo saarka, codsiga dhismaha si adag loo xaddiday isticmaalka dareeraha iyo qiiqa, qaybo ka mid ah Maraykanka ayaa sidoo kale qaab sharci ah faafiyay sharciga xaddidaadda isticmaalka dareeraha, Qodobbada ka kooban ilaa 66 qodob, iyo Yurub iyo Maraykanku waxay soo bandhigeen ujeeddada "saddexda E":

(1) Wax ka beddelka Ecology
(2) Keydinta Tamarta
(3) Faa'iidada Dhaqaalaha

Xaaladdan oo kale, dahaarka budada ah waxay la kulmeen horumar degdeg ah sababtoo ah dabeecadooda wasakhaysan, isticmaalka sare ee alaabta ceeriin, iyo faa'iidooyin badan. Gaar ahaan Galbeedka Yurub iyo Waqooyiga Ameerika, heerka kobaca sanadlaha ah ee daboolka budada ah wuxuu gaaraa 10%. Intaa waxaa dheer, sannadihii ugu dambeeyay, Shiinuhu wuxuu sidoo kale arkay kobaca sanadlaha ah ee cajiibka ah ee 100% ee daboolka budada.

Polyvinyl chloride (PVC) Dahaarka budada ah ayaa si gaar ah loogu jecel yahay dadka isticmaala sababtoo ah sifooyinka qurxinta ee gaarka ah iyo sidoo kale cimilada iyo iska caabinta daxalka. Hadda, PVC dahaarka budada waxaa si weyn looga codsadaa dhinacyo kala duwan oo ay ka mid yihiin ilaalinta fiilada ee tuubada birta ah, tuubada iska caabbinta daxalka kiimikada, tuubooyinka bullaacadaha, tuubooyinka warshadaha batroolka iyo kiimikada, calamadaha waddooyinka, tiirarka iftiinka, ilaalinta waddooyinka iwm.

Habka Horumarinta

1.Qaabka aasaasiga ah ee PVC dusha budada

PVC daahan budo ah ayaa laga sameeyaa PVC resin oo ah walxo saldhig u ah balaastikada, xasiliyaha, buuxinta iyo waxyaabo kale oo lagu daro. Qaaciddada aasaasiga ah ayaa lagu muujiyay shaxda (midabka cad).

2.Teknoolajiyada Diyaarinta ee PVC dusha budada

Habka diyaarinta ee PVC daahan budada ah, habraaceeda waxa lagu muujiyay Jaantuska.

3.Natiijooyinka Imtixaanka Falanqaynta Waxqabadka Alaabta

Ka dib cilmi-baaris soo noqnoqda iyo horumarinta, tijaabinta, iyo marka la barbar dhigo alaabta la soo dhoofiyo, qaar ka mid ah waxqabadka PVC daahan budada ah ayaa ugu dambeyntii gaadhay ama xitaa dhaaftay waxqabadka alaabta la soo dhoofiyo ee isku midka ah, fiiri miiska.

Codsiga PVC Dhuumaha Birta Dahaarka leh ee budada ah

PVC Filimka dahaarka budada ah waa heer-kulul-adag oo nus-adag. Marka la barbardhigo polyetylen, heerkulka dhalaalka iyo kala duwanaanta heerkulka kala-goynta waa yar yahay, marka marka la isticmaalo waa in fiiro gaar ah loo yeesho heerkulka dubista iyo wakhtiga. Sababtoo ah xajinta liidata, ka hor inta aan la gelin, guud ahaan waxay u baahan tahay in lagu daboolo lakabka asaasiga ah si loo kordhiyo dhejinta daaha.

1.The sifooyinka ugu muhiimsan ee daahan

• PVC Waxyaabaha daahan budada ah waxaa ka mid ah: alaabta qurxinta gudaha iyo dharka aan biyuhu lahayn, taangiyada kiimikada, sagxadaha, filimka baakadaha, tuubada beerta iyo dahaarka siliga.
• Hababka habayntu waxay qaataan isku dhafka qalalan, qaabaynta duritaanka, qaabaynta dharbaaxada godan ee extrusion, calending, iyo sariir dheecaan leh quusin.
• Dab-demiska ololka (oo lagu daray olol dib u dhigista)
• Biyaha iyo caabbinta kiimikada, caabbinta gabowga wanaagsan.

2.Main habka dhismaha iyo kala duwan ee codsiga

PVC daahan budada ah waxaa inta badan loo isticmaalaa mesh birta, daashka kaydinta qabow, alaabta birta, birta birta iyo wixii la mid ah. Habka daahan inta badan waa sida soo socota:

(1) Daawaynta ka hor: daawaynta fosfooraska - ka saarista miridhku, fosfatinta.
(2) Dahaarka Primer: Ku dheji furaha, ka dib qalajinta, dhumucda filimka asaasiga ah waa 5-10μm,
(3) buufin elektrostatic ah ama sariiro dheecaan leh.
4. heerkulka preheating: 230-290 ℃, 10min, dhumucda filimka: 500um;
Ama 290 ℃, 5min iyada oo aan horay loo kululayn, dhumucda filimka 200um.

PVC Dhuumaha birta dahaarka leh waxay faa'iido u leedahay bakhtiyaa-ka-hortagga petrochemical, faa'iido u leh ilaalinta waddooyinka, faa'iido u leh tiirka, ka dib sannado badan oo natiijooyin codsi ah ayaa muujinaya in PVC daahan iska caabinta biyaha, caabbinta gabowga atmospheric waa wanaagsan, guud ahaan la heli karo in ka badan 15 sano, baabi'iyo dhibaatada rinjiga burushka inta badan, isbarbardhigga dhamaystiran ee ay qiimaha jaban, loo isticmaalo anti-daxalka kiimikada, sidoo kale waxaa loo isticmaali karaa in ka badan shan sano. isticmaaluhu si uu u xalliyo dhibaatada ka-hortagga daxalka.

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