Balaastig Polyethylene ah (PE)

* PE waa balaastiig polyethylene ah, kaas oo laga samayn karo filim balaastiig ah, bacaha balaastikada ah iyo qaybo kala duwan. Si loo yareeyo wasakhowga cad, wakiilada wasakhaynta ayaa lagu dari karaa balaastiga si loo gaaro ujeeddada burburka degdega ah, noocan polyethylene ah waxaa loo yaqaan balaastiig deegaanka u fiican. Waa mid fudud, waara, waana mid ka mid ah balaastiigga ugu badan ee la soo saaro.

* Badeecooyin ama qaybo balaastig ah oo PE ah oo la habeeyey

XOOGSAN

ISKA ILAALI SAAMAYNTA

SIFOOYINKA KORONTADA EE WEYN

Waa maxay balaastikada PE?

Polyethylene oo loo yaqaan PE, waa resin thermoplastic ah oo ay soo saarto polymerization-ka ethylene, waa qaab-dhismeedka isku-dhafka ugu fudud ee polymer organic-ga, walxaha polymer-ka PE polyethylene ee ugu isticmaalka badan adduunka, polymerization-ka ethylene, iyadoo loo eegayo cufnaanta kala duwan waxaa loo qaybiyaa polyethylene cufnaanta sare, polyethylene cufnaanta dhexdhexaadka ah iyo polyethylene cufnaanta hoose.

Polyethylene waa mid aan ur lahayn, aan sun ahayn, waxay u egtahay shamac, waxay leedahay iska caabin heer hoose oo aad u fiican (heerkulka ugu hooseeya ee la isticmaalo ilaa -100 ~ -70 ° C), xasillooni kiimiko oo wanaagsan, waxay u adkaysan kartaa asiidhyada iyo alkalis badankooda (uma adkaysan sifooyinka oksaydhka ee aashitada). Kuma milmi karo dareeraha guud heerkulka qolka, nuugista biyaha yar, dahaarka korontada oo aad u fiican.

Sidee loo sameeyaa PE?

Polyethylene waxaa laga sameeyaa polymerization-ka monomer-ka ethylene (ama ethene). Silsiladaha PE waxaa lagu soo saaraa ku darid ama polymerization xagjir ah. Hababka isku-darka ee suurtogalka ah waa:

Polymerization-ka Ziegler-Natta iyo

Katalisnimada Metallocene

Ma sun baa resins-ka PE?

Qaab adag, Polyethylene waxaa loo arkaa mid ammaan ah oo aan sun ahayn. Waxay noqon karaan kuwo sun ah haddii la neefsado iyo/ama la nuugo sida uumi ama dareere (tusaale ahaan, inta lagu jiro hababka wax soo saarka).

Waa maxay noocyada caadiga ah ee PE?

Iyada oo ku xidhan cufnaanta iyo laanta, heerarka kala duwan ee PE waxay yeelan karaan waxqabad aad uga duwan midba midka kale.

Sidaa darteed, darajooyinka PE waxaa loo kala saaraa sidan soo socota.

Noocyada Laamaha leh

Polyethylene cufnaanta hoose (LDPE)

Polyethylene cufnaanta hoose ee toosan (LLDPE)

Noocyada Toosan

Polyethylene cufnaanta sare leh (HDPE)

Polyethylene-ka miisaanka aadka u sarreeya ee molecular-ka (UHMWPE)

Polyethylene isku xiran (PEX ama XLPE)

Intaa waxaa dheer, noocyada kale ee PE ayaa sidoo kale la heli karaa sida:

Polyethylene cufnaan dhexdhexaad ah (MDPE)

Polyethylene cufnaanta aadka u hooseysa (ULDPE)

Polyethylene-miisaanka sare ee molecular-ka (HMWPE)

Polyethylene-ka birta ka samaysan (mPE)

Polyethylene koloriinaysan (CPE)

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Dhammaan soo gelintu waa ammaan oo qarsoodi ah

HELITAANKA ALAABTA HAGAHA INJIINEERINKA

Sidee loo barbar dhigaa noocyada PE-da ugu muhiimsan?

	LDPE	LLDPE	HDPE
Magaca Buuxa ee Polymer-ka	Cufnaan Hoose oo Polyethylene ah	Polyethylene Cufnaan Hoose oo Toosan	Cufnaanta Sare ee Polyethylene
Qaab-dhismeedka	Heer sare oo silsilad gaaban ah laamo + laamo silsilad dheer	Heer sare oo ah laanta silsiladda gaaban	Toosan (ama Heer hoose oo ah laanta silsiladda gaaban)
Katalystaha iyo habka	Isticmaalka polymerization xagjir ah iyadoo la adeegsanayo habka tuubada ama habka autoclave	Isticmaalka Ziegler-Natta catalyst ama metallocene catalyst	Kaaliyaha Ziegler-Natta ee ku jira: - Polymerization-ka hal-marxalad ah - Polymerization-ka marxalado badan leh ama kataliye nooca Cr ama Phillips ah
Cufnaanta	0.910-0.925 g/cm3	0.91-0.94 g/cm3	0.941-0.965 g/cm3
Crystallinity	Crystalline hooseeya iyo sare amorphous (wax ka yar 50-60% kristaliin)	Semi-krystalin, heerka u dhexeeya 35 ilaa 60%	Crystalline sare iyo amorphous hooseeya (>90% kristaliin)
Koodhka Dib-u-warshadaynta
Astaamaha	Dabacsanaan iyo hufnaan wanaagsan Sifooyinka ilaalinta qoyaanka wanaagsan Xoog saameyn sare leh heerkulka hooseeya Iska caabin aad u fiican oo ku wajahan asiidhyada, saldhigyada iyo saliidaha khudradda	Marka la barbardhigo LDPE, waxay leedahay: xoog sare oo jiidis ah saameyn sare iyo iska caabin daloolin	Iska caabin kiimiko oo aad u fiican Xoog sare oo la jiidi karo Sifooyinka caqabadda qoyaanka ee aadka u fiican Way adag tahay ilaa nus-dabacsanaan
Codsiyada Guud	Duubka yaree, filimada, dhalooyinka la tuujin karo bacaha qashinka, muraayadaha laminate-ka, iyo muraayadaha lagu dhejiyo	Bacaha waxqabadka sare leh, filimada barkimooyinka, filimada kala-soocidda taayirka, Dahaarka warshadaha, filimada laastikada ah, bacaha barafka, bacaha dheeraadka ah bacaha baakadaha iyo qashinka	Qaybinta miisaanka molecular-ka waa mid cidhiidhi ah, waxayna leedahay codsiyo qaab-dhismeedka duritaanka ama dun fidsan, iyo nooca dambe Qaybinta miisaanka molecular-ka waa mid ballaaran, waxaa loo isticmaalaa in lagu sameeyo alaabada filimada, badeecooyin balaastig ah oo godan iyo tuubooyin

Waa maxay sifooyinka HDPE?

1. Polyethylene waa budo cad oo caadi ah oo aan lahayn ur, dhadhan lahayn, oo aan sun ahayn oo guban karta.

2. Barta dhalaalka ee polyetylen waa 100-130C - iska caabinteeda heerkulka hooseeya waa mid aad u fiican.

3. Polyethylene waxay leedahay xasillooni kiimiko oo wanaagsan waxayna u adkaysataa nitric acid-ka khafiifiya, sulfuric acid-ka khafiifiya, hydrochloric acid, hydrofluoric acid, fosforic acid, formic acid, acetic acid, ammonia, amiin, hydrogen peroxide, sodium hydroxide, potassium hydroxide iyo xalal kale heerkulka qolka.

4. Polyethylene-ku waa mid si fudud loo sawiri karo, oksaydhaynta kulaylka, burburka ozone-ka, si fududna u burburi kara iyadoo la adeegsanayo falgalka fallaaraha ultraviolet-ka.

5. Heerkulka joogtada ah: -50 ° C ilaa +60 ° C, walax adag oo leh awoodo heerkul oo waxtar leh

6. Polymer kharash yar oo leh habayn wanaagsan

7. Nuugista biyaha oo aad u hooseysa

Noocee PE ah ayaa dib loo warshadeyn karaa?

Koodhka Aqoonsiga Resin ee labada nooc ee ugu muhiimsan ee PE waa:

LDPE iyo HDPE waa kuwo aan dabiici ahaan u burburi karin. Waxay si weyn uga qayb qaataan wax soo saarka qashinka balaastikada adduunka. Labada nooc ee PE waa la dib u warshadayn karaa. Waxaa loo isticmaalaa in lagu soo saaro dhalooyin loogu talagalay waxyaabaha aan cuntada ahayn, balaastikada loogu talagalay isticmaalka dibadda, weelasha bacriminta, iwm.

Adeegyada Loo Heli Karo Balaastikada PE

Badeecadaha la dhammeeyay

Badeeco dhammaystiran oo ka samaysan walxaha PE, sida qaar ka mid ah qalabka qurxinta, qasacadaha qashinka, iwm.

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