Polypropylene Formula. Guryaha iyo codsiga of polypropylene

Oo polymers ka qalabkan, maacuunta iyo accessories dhigay - taasi waa qayb muhiim ah oo ka mid ah warshadaha iyo nolosha aadanaha guud. khayraadka dabiiciga ah, nasiib daro, si ba'an u yaraaday inta lagu jiro ay u isticmaalaan. Sidaa darteed, dadka u leeyihiin in ay bartaan in synthesize qalabka macmal ah in ay leeyihiin tiro ka mid ah sifooyinka farsamo muhiim ah. Mid ka mid ah kuwan waa polypropylene. formula kiimikada ee xarunta this, gaar ahaan hantida iyo qaab-dhismeedka Britain ayaa waxaa loo tixgelin doonaa in maqaalka.

Polymers - sharaxaad guud ee

Tani class xeryahooda ka mid ah kuwa ay leeyihiin qiimo aad u sarreeya oo miisaankiisu kelli. Maxaa yeelay, polymers - yihiin xeryahooda organic adag in ka kooban yahay unugyo monomer soo celceliyey badan, kaas oo noqon kara ka tobanaan dhowr boqolaal, kun ama malaayiin.

Kooxaha soo socda ka mid ah oo dhan polymers lagu kala sooci karaa:

1. asal ahaan dabiiciga ah - borotiin, taagoo acid nucleic ee ATP, iyo wixii la mid ah.
2. Artificial - kuwa ku salaysan yihiin dabiici ah, laakiin waxaa loo kiimikaad ahaan modified si loo sii hagaajiyo waxqabadka. Tusaale ahaan, masaxado aan dabiici ahayn.
3. Dardaro - kuwa la abuuray oo keliya by falgalka kiimikada, Avv in warshad shaybaarka iyo wax soo saarka. Halkan tusaalooyin waa leyloonka iyo macdantaa, polyetylen, masaxado dardaro, chloride polyvinyl, polypropylene iyo kuwa kale.

All beeraha leh group of polymers calaamadeeyay - an qalab muhiim ah cayriin warshadaha ee diyaarinta iyo wax soo saarka ee qalabka kala duwan, maacuunta, galaasyada, alaabta lagu ciyaaro, qalabka guriga iyo waxyaabo kale.

Wakiillada oo ka mid ah polymers dardaro ugu muhiimsan

formula kiimikada ee mid ka mid ah wakiilada ugu muhiimsan ee polymers dardaro, waxaa qoran sida (-CH ₂ -CH ₂ -) _n. polyetylen Tani. meelaha uu isticmaalka waxaa loo yaqaan. baahida qoyska Tani (film shopping), iyo warshadaha, iyo warshadaha cuntada (wax xirxiraan). Si kastaba ha ahaatee, inkasta oo ay waa kuwa ugu badan, laakiin aan wakiilka keliya ee waa lagama maarmaan aadanaha. Waxa kale oo ka mid noqon kara polymers sida:

• PVC;
• polypropylene;
• polyisobutylene;
• polystyrene;
• dhimatay,
• copolymer polyvinyl, iyo kuwa kale.

Waa in ganacsiga dhismaha, iyo samaynta cookware ciyaara wax door muhiim ah sida polypropylene. Sidaa darteed, waxaa la sii fikiro qaababka ay ka dhibic kiimikada ee view.

Formula polypropylene

Eegaysana ee kimistari sayniska, oo sideeda oo ah walaxda lagu sheegi karaa in noocyada kala duwan ee caanaha. Ikhtiyaarka hore waa qaab kelli ah qoraal. Xaaladdan oo kale formula waa sida polypropylene (C ₃ H _{6) n.} polimerazatsii n Last waa degree, i.e. tirada unugyada dhismaha ee macrochain hore.

record Tani waxay soo jeedinaysaa halabuurka ah oo tayo iyo tiroba ee Britain ayaa ku. Polypropene ka kooban carbon iyo hydrogen atamka, oo tiradoodu waxay unit monomer waa siday u kala horreeyaan loo siman yahay 3/6, iyo silsilad total ku xiran tahay n index ah. Haddii aan ka hadlo qaabka dhismaha, on amarka of atamka ee Britain, ka dibna waxaad u baahan tahay nooc ka mid ah oo kala duwan oo wax lagu qoro.

Polypropylene: formula dhismaha

Nooca Record, taas oo muujinaysa amarka silsilado qaaradda ee Britain ee, loo yaqaan formula ee dhismaha. Waayo, walxaha halkan tixgeliyo waxay yeelan doontaa foomka: (CH ₂ -CH-CH ₃ -) _n. Sida iska cad, valence ku atamka caadi ah in chemistry organic iyo waxa la hadhay kiiskan. polypropylene Formula ama polypropene muujinaysaa nooca unit monomer caddeynayaa xarunta. Waxaa la soo sameeyey hydrocarbon ah roodhida (alkene) propene ama propene. Its formula taaban karo: C ₃ H _8.

monomer bilowga ah

formula ee helitaanka monomer polypropylene ah sida soo socota: (-CH ₂ -CH-CH ₃ -). Haddii jab this lagu celceliyo boqolaal jeer, waxaan ka heli macromolecule oo dhan, polymer a dardaro, taas waxaa loo arkaa wax. Intaa waxaa dheer, aynu hore u tilmaamay in dhamaan waxyaabaha laga bilaabo ay falcelin polymerization ah waa in la tixgeliyaa alkene caadi ah - propene. Isagu waa monomer polypropylene. formula dhismayaasha loo qori doonaa sida CH ₃ -CH = CH _2. At fasax la doonayo moiety bond double sameeyay inta lagu guda jiro polymerization ah. unit isla monomer, oo soo noqnoqda, foomamka macromolecule polymer ah.

guryaha jirka iyo kiimikada

formula Polypropylene (-CH ₂ -CH-CH ₃ -) _n wuxuu tilmaan u ah sifooyinka ay jirka iyo kiimikada. Waxaan ku qor kuwa ugu muhiimsan.

1. guryaha jirka ah ee polymer: 0.91 g / cm ^3, adag, abrasion adkaysta, ma hoos gasho daxalka. White, Doolaal. ur lahayn. In biyaha, qase organic at heerkulka caadiga ah beelaya. Marka index kor 100 ⁰ C waxaa kala diri ee xeryahooda shidaalka. Waxa uu bilaabo inuu u jilciso ka dib markii 140 ⁰ C, at 170 ⁰ C dhalaalayaa. Waxay leedahay kulaylka iyo iska caabin ah oo qabow.
2. guryaha Kiimikada. Marka laga eego dhnaca hawsha, polypropene loo saarin karaa in wax ku ool ah inert. Waa awood u leh oxidants gaar xoog ficil kaliya: Kala Duldhacay acid nitric, chlorosulfonic acid, oleum, halogens firfircoon (fluorine, chlorine). Tan iyo biyaha ma dhexgalaan oo dhan, xataa marka heerkulku kacsantahay. Tan iyo oxygen kaliya sameynayso dul cindiga iftiinka ultraviolet, waxaa ku weheliyay nabaad of polymer ah. The qase organic la sii kordhaya bararto heerkulka iyo kala diray.

guryaha qaarkood loo saarin karaa sifooyinka of maaddadu ay tahay in loo isticmaalo warshadaha. Si kastaba ha ahaatee, ma dhammaan polypropylene isku. Waxaa jira xasiliya lagu daro gaarka ah, kuwaas oo loo abuuray isticmaalaya fasalada kala duwan ee polymer hoostiisa tixgelin.

sooc waxyaabaha

Waxaa suurto gal ah in ay u xil dhowr guryaha aasaasiga ah jinnoolihii wax polypropylene. Astaamaha u gaarka ah ee ay soo socda:

1. Marka kululaynta waa awoodaa inuu dhalaalin, hore u jilciso.
2. Waxaa wuxuu leeyahay sifooyin tabinta.
3. Udarostoek, Duugga raagaya.
4. Adkaysi u abrasion.
5. Gabowga markii loo feydo qoraxda iyo oxygen, laakiin habka waa ku filan gaabis ah.
6. Sida polymer leeyahay miisaanka yar kelli.
7. Miyuu cad, translucent, ayaa uma dhadhamin ama urta.
8. Haddii sari ma dhaadheer waxyaabo waxyeello, shanqarta ah caraf ubaxa iftiinka.
9. Waa dabacsan, raagaya, adkaysi u noocyada kala duwan ee wasakhaysan.
10. Waxay leedahay kulaylka iyo qabowga.

beeraha oo dhan calaamadeeyay la polypropylene sida guryaha wax ka dhigi haboon noocyo kala duwan oo u baahan. Waa ay fududahay in la isticmaalo, fudud si ay u ilaaliyaan oo ay isticmaalaan in dhaqanka ee qaybta ka mid ah dhaqaalaha.

Guud ahaan, waxaa jira saddex kala duwan ugu weyn ee wax this:

• attaktichesky;
• syndiotactic;
• isotactic.

Farqiga ugu muhiimsan ee u dhaxeeya - waa qaab-dhismeedka aan ollogga ah ee Britain ayaa ku. Gaar - kooxaha methyl ee silsiladda. Sidoo kale caddaymaha saamayn xasilinta daro, tirada unugyada monomer in macrostructure ah.

Keena wax ka mid ah qaab-dhismeedka crystalline a granular ama foomka macdantaa, go'yaal.

Meelaha isticmaalka

polypropylene Waxyaabaha loo isticmaalo wax soo saarka ee filimada kala duwan, weelasha baakooyinka, weelasha cuntada. Waa sababta oo ah waxa badanaa laga sameeyey oo koobabka caaga ah iyo waxyaabo kale oo ka mid ah weelka la tuuro. Qalabkan waxaa loo isticmaalaa samaynta waara, adkaysi u walxaha kiimikada polypropylene tuubooyinka tuubooyinka.

Waxa loo isticmaalaa si loo abuuro qalab shumonepronitsaemyh. koollo - waxay sidoo kale waa mid ka mid ah noocyo polypropylene.

wax Attaktichesky waxaa loo isticmaalaa si:

• mastics;
• adhesives;
• shamiiteeyay;
• cajalado koolo,
• Laamiyo iyo wixii la mid ah.

Tiro badan oo shabaqa polypropylene, Dunta, ka baxo for soo saaridda ee alaabta lagu ciyaaro, qalabka xafiisyada, alaabta guriga iyo alaabta guriga.