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Poly(vinyl chloride) Poly(vinyl chloride)

PVC ke polasetiki ea polyvinyl chloride, 'mala o khanyang, ho hanyetsa kutu, ho tiile ebile ho tšoarella, ka lebaka la ho eketsoa ha polasetiki, moemeli oa anti-botsofali le lisebelisoa tse ling tse thusang tse chefo ha ho etsoa tlhahiso, kahoo lihlahisoa tsa eona ka kakaretso ha li boloke lijo le lithethefatsi.

PVC ke polyvinyl chloride, e leng sehlahisoa sa polasetiki se entsoeng ka oli ea 43% le letsoai la 57%.Ha ho bapisoa le mefuta e meng ea lihlahisoa tsa polasetiki, PVC e sebelisa lisebelisoa tse tala ka katleho le ho fokotsa tšebeliso ea mafura.Ka nako e ts'oanang, tšebeliso ea matla ea tlhahiso ea PVC e tlase haholo.'Me nakong ea tšebeliso ea morao-rao ea lihlahisoa tsa PVC, li ka sebelisoa hape 'me tsa fetoloa lihlahisoa tse ling tse ncha kapa ho chesoa ho fumana matla.

PVC tlhahiso e tla eketsa stabilizer, empa stabilizer e na le lintlha tse se nang chefo le tse chefo, feela eketsa letsoai la lead tse kang stabilizer e chefo, e tla hlahisa likotsi tse patiloeng.Empa lihlahisoa tsa PVC li tsoakane, likhoebo tse ling tse nyane li sebelisa letsoai la lead e le stabilizer, ho thata ho fihlela maemo a bophelo bo botle.Ha bareki ba khetha thepa ea PVC, ho molemo ho ea 'marakeng oa kamehla oa thepa ea mohaho ka botumo le boleng bo tiisitsoeng, 'me u kope mofani oa thepa ho fana ka tlaleho ea teko.Bareki ba lokela ho ela hloko ho hlahloba litokomane tse amehang le matšoao, fumana "tse amanang le metsi a nooang bophelo bo botle polokeho dihlahiswa tsa bophelo bo botle laesense" dihlahiswa bolokehileng.

UPVC

Polyvinyl chloride e thata (UPVC)

UPVC, e tsejoang hape e le PVC e thata, ke resin ea amorphous thermoplastic e entsoeng ka vinyl chloride monomer ka karabelo ea polymerization e nang le li-additives tse itseng (tse kang stabilizer, lubricant, filler, joalo-joalo).

Ntle le ho sebelisa li-additives, mokhoa oa ho kopanya phetoho le li-resin tse ling o boetse o amoheloa, e le hore o be le boleng bo sebetsang bo hlakileng.Li-resin tsena ke CPVC, PE, ABS, EVA, MBS joalo-joalo.

The melt viscosity ea UPVC e holimo 'me metsi a fokola.Esita le haeba khatello ea ente le mocheso oa ho qhibiliha li eketseha, metsi a ke ke a fetoha haholo.Ho phaella moo, mocheso o entsoeng ka resin o haufi haholo le mocheso oa ho bola ha mocheso, 'me mocheso oa mocheso oa resin o ka thehoa o moqotetsane haholo, kahoo ke mofuta oa thepa e thata ho theha.

Lisebelisoa tsa lipeipi tsa UPVC, melemo ea phala

Boima bo bobebe: Karolo ea thepa ea UPVC ke 1/10 feela ea tšepe e entsoeng, ho bonolo ho e tsamaisa, ho kenya le ho fokotsa litšenyehelo.

Khanyetso e phahameng ea lik'hemik'hale: UPVC e na le asiti e ntle haholo le khanyetso ea mantlha, ntle le acid e matla le setsi se haufi le sebaka sa saturation kapa li-agent tse matla tsa Oxidising atmaximun.

Non-conductive: Lisebelisoa tsa UPVC ha li khone ho tsamaisa motlakase, 'me ha li senyehe ke electrolysis le hona joale, ka hona ha ho na tlhoko ea ts'ebetso ea bobeli.

Ha e khone ho chesa, kapa ho tšehetsa mollo, ha ho na matšoenyeho a mollo.

Ho kenya habonolo, theko e tlaase: ho khaola le ho kopanya ho bonolo haholo, tšebeliso ea mokhoa oa ho kopanya PVC glue e ipakile e le tšireletso e molemo ka ho fetisisa, ts'ebetso e bonolo, theko e tlaase.

Durability: Boemo ba leholimo bo botle haholo, 'me bo ke ke ba silafatsoa ke libaktheria le li-fungus.

Ho hanyetsa ho tlaase, tekanyo e phahameng ea phallo: lerako le ka hare le boreleli, tahlehelo ea phallo ea mokelikeli e nyenyane, litšila ha li bonolo ho khomarela lerako le boreleli la tube, tlhokomelo e bonolo, litšenyehelo tsa tlhokomelo li tlaase.

Polypropylene polypropylene polypropylene polypropylene

PP ke polasetiki ea polypropylene, e seng chefo, e sa latsoeheng, e ka kolobisoa ka metsi a belang a 100 ℃ ntle le ho senyeha, ha ho na tšenyo, acid e tloaelehileng, li-solvents tsa alkali li batla li se na phello ho eona.E sebelisoa haholo bakeng sa lisebelisoa tsa ho jela.

Polypropylene e entsoe ka polymerized ka polypropylene monomer.Karolo e ka sehloohong e ne e le polypropylene.Ho ea ka sebopeho sa monoma e nkang karolo ho polymerization, e ka aroloa ka mefuta e 'meli: polymerization ea homogeneous le copolymerization.Homopolymer polypropylene e entsoe ka polymerized ho tloha ho propylene monomer e le 'ngoe' me e na le crystallinity e phahameng, matla a mochine le ho hanyetsa mocheso.Copolymerized polypropylene e entsoe ka copolymerized ka ho eketsa palo e nyane ea ethylene monomer.

Likarolo tsa eona tsa mantlha:

1. Ponahalo le litšoaneleho tsa 'mele:' mala oa tlhaho, likaroloana tsa cylindrical li tšoeu ebile li fetoha, li na le boka;E se nang chefo, e sa latsoeheng, e tukang lelakabe le lesehla le leputsoa, ​​​​mosi o monyenyane o motšo, ho qhibiliha ho rotha, monko oa parafine.

2. Tšebeliso ea mantlha le tlhahiso: Polypropylene e bokelletsoeng 'marakeng e sebelisoa haholo bakeng sa lihlahisoa tse lohiloeng, tse sebelisoang haholo, li ka sebelisoa bakeng sa mekotla e lohiloeng, thapo ea ho paka, lebanta le lohiloeng, thapo, tšehetso ea k'hapete joalo-joalo, tlhahiso ea eona ea selemo le selemo ea ho feta. Lithane tse 800,000, tse etsang 17% ea kakaretso ea tlhahiso ea polypropylene.

PE Polyethylene polyethylene

PE ke polasetiki ea polyethylene, thepa ea lik'hemik'hale e tsitsitseng, hangata e etsa mekotla ea lijo le lijana tse fapaneng, acid, alkali le letsoai le khoholeho ea metsi, empa ha ea lokela ho hlakoloa kapa ho kolobisoa ka sesepa se matla sa alkaline.

PPR

Copolymer polypropylene e sa tloaelehang

1. Mabapi le Copolymer, copolymer e bitsoa Homonolymer.Copolymer eo copolymers ho tse peli kapa ho feta monomers bitsoa copolymer;

;2. Mabapi le Propylene le Ethene, PP-B le PP-R li fetoha Poly poly Copolymer;har'a bona,

1) Ho sebelisa mokhoa o tsoetseng pele oa khase ea copolymerization, PE e entsoe ka mokhoa o sa reroang le ka mokhoa o ts'oanang oa polymerized ka har'a ketane ea molek'hule ea PP, thepa ena e tala e bitsoa PP-R (polymerization polypropylene e sa tloaelehang);

2) Ho sebelisa PP le PE block copolymerization, thepa ena e tala e bitsoa PP-B (block copolymerization polypropylene)

PEX

Polyethylene e kopantsoeng (PEX)

Kenyelletso ea phaephe ea polyethylene (PEX) e amanang le sefapano

Liphaephe tse tloaelehileng tsa polyethylene (HDPE le MDPE), tseo li-macromolecules li nang le mela, li na le bothata bo boholo ka ho fetisisa ba ho hanyetsa mocheso le ho hanyetsa mocheso, kahoo liphaephe tse tloaelehileng tse phahameng tsa polyethylene ha li tšoanelehe bakeng sa ho tsamaisa bohareng le mocheso o moholo ho feta 45 ℃."Cross-linking" ke mokhoa oa bohlokoa oa ho fetola polyethylene.The linear macromolecular sebopeho sa polyethylene fetoha PEX le tharo-dimensional netweke sebopeho ka mor'a cross-linking, e leng haholo ntlafatsa ho hanyetsa mocheso le creep resistance ya polyethylene.Ho sa le joalo, khanyetso ea eona ea botsofali, thepa ea mochini le pepeneneng e ntlafalitsoe haholo.Ka nako e ts'oanang, o rua ho hanyetsa ho bola ha lik'hemik'hale le ho feto-fetoha ha phala ea polyethylene.Ho na le mefuta e meraro ea li-tubes tsa PEX tse fumanehang khoebong.PEXa pipe ea PEXb pipe ea PEXC

Likarolo tsa PEX tube

Mocheso o motle haholo le ho hanyetsa serame, matla a phahameng a mocheso mocheso o phahameng:

Matla a matla a ho hanyetsa mocheso o tlase:

Ho futhumatsa ntle le ho qhibiliha:

Khanyetso e sa tloaelehang: Lintlha tsa Creep ke motheo oa bohlokoa bakeng sa moralo oa sehlahisoa le khetho ea thepa ea boenjiniere.Ha ho bapisoa le lisebelisoa tsa setso tse kang litšepe, boitšoaro ba polasetiki bo itšetlehile haholo ka nako ea ho kenya le mocheso.Tšobotsi ea sekhahla sa PEX tube e batla e le e 'ngoe ea liphaephe tse ntle ka ho fetisisa har'a lipeipi tse tloaelehileng tsa polasetiki.Khanyetso e sa tloaelehang: Lintlha tsa Creep ke motheo oa bohlokoa bakeng sa moralo oa sehlahisoa le khetho ea thepa ea boenjiniere.Ha ho bapisoa le lisebelisoa tsa setso tse kang litšepe, boitšoaro ba polasetiki bo itšetlehile haholo ka nako ea ho kenya le mocheso.Tšobotsi ea sekhahla sa PEX tube e batla e le e 'ngoe ea liphaephe tse ntle ka ho fetisisa har'a lipeipi tse tloaelehileng tsa polasetiki.

Bophelo ba tšebeletso bo sa feleng:

Kamora hore tube ea PEX e fetise tlhahlobo ea mocheso oa 110 ℃, khatello ea lesale ea 2.5MPa le nako ea 8760h, ho ka fihleloa hore bophelo ba eona bo tsoelang pele ba ts'ebeletso ea lilemo tse 50 ho 70 ℃.