Ho lokisoa ha fiber ea UHMWPE

UHMWPE, eo hape e tsejoang e le polyethylene ea matla a holimo-modulus, hajoale ke e 'ngoe ea lisebelisoa tse sebetsang hantle lefatšeng.Ka lebaka la thepa ea eona e pharalletseng e ntle joalo ka ho hanyetsa kutu, ho hanyetsa ho roala le ho fokotseha ho tlase, hajoale e sebelisoa lisebelisoa tsa ts'ireletso ea sesole, lisebelisoa tsa mochini oa sesole, lisebelisoa tsa sefofane le libaka tse ling tsa sesole.

UHMWPE, eo hape e tsejoang e le polyethylene ea matla a holimo-modulus, hajoale ke e 'ngoe ea lisebelisoa tse sebetsang hantle lefatšeng.Ka lebaka la thepa ea eona e pharalletseng e ntle joalo ka ho hanyetsa kutu, ho hanyetsa ho roala le ho fokotseha ho tlase, hajoale e sebelisoa lisebelisoa tsa ts'ireletso ea sesole, lisebelisoa tsa mochini oa sesole, lisebelisoa tsa sefofane le libaka tse ling tsa sesole.Nts'etsopele ea fiber e sebetsang hantle ke motheo oa thepa ea sesole sa naha, 'me lisebelisoa tse tsoetseng pele li ka lebisa ho thekenoloji e tsoetseng pele ea sesole, e fetohileng motheo oa bohlokoa oa thepa ea kaho ea naha e matla ea sejoale-joale,' me e nka boemo ba makhaola-khang. tšimo ea thepa ea sesole lefatšeng ka bophara.

1. Thepa ea fiber ea UHMWPE

Fiber ea UHMWPE e na le thepa e felletseng e felletseng, boima ba eona bo nyane, bo ka phaphamala holim'a metsi.LeUHMWPE fiberke fiber e matla ka ho fetisisa lefatšeng ha joale.Ha ho bapisoa le tšepe, fiber ea UHMWPE e matla ho feta tšepe ea boleng bo holimo ka makhetlo a fetang leshome.Ho feta moo, fiber ea UHMWPE e boetse e na le khanyetso e matla ea kutu, k'hemik'hale ea lik'hemik'hale, ho hanyetsa ho roala le thepa e 'ngoe, ts'ebetso e pharaletseng, fiber ea UHMWPE libakeng tse ngata tsa bohlokoa Chaena e phetha karolo ea bohlokoa.

1.1 Lintho tse ntle tsa mochini

Ha ho bapisoa le likhoele tse ling tse sebetsang hantle haholo, UHMWPE fiber density ke ea bobeli feela ho e tloaelehileng ea PE le polypropylene fiber, 'me ke thepa e nepahetseng ea fiber e nang le letsoalo le lenyenyane ka ho fetisisa har'a lisebelisoa tse sa keneleng likulo.E ka fokotsa boima ba thepa mme ea fihlela phello e bobebe ha e ntse e netefatsa ts'ebetso e ntle ea bulletproof.

Ha ho bapisoa le thepa e meng, matla a tensile a UHMWPE ke a bobeli feela ho a PBO le polyaryl ester fiber, 'me ke 0.1 feela e fapaneng le ea polyaryl ester fiber.Hoa bonahala hore UHMWPE e na le matla a matla a ho tsitsa.

Ha ho bapisoa le likhoele tse ling, modulus ea pele ke ea bobeli feela ho PBO le carbon fiber, e bontšang hore fiber e na le khanyetso e ntle ea ho senya tsitsipano 'me ha e ratehe ho fetoha.Ke mofuta oa fiber e ikhethang e nang le matla a ikhethileng a holimo-limo le modulus e ikhethang, e bapalang karolo ea bohlokoa linthong tse thibelang likulo.

1.2 Ts'ebetso ea ho kenya motlakase

UHMWPE fiber reflectance radar wave phenomenon ke e fokolang haholo, e nang le ts'ebetso e phahameng ea conduction, e ntlafatsa ho lula ha dielectric tsa lisebelisoa tse kopaneng.Le hoja boleng ba dielectric le tahlehelo ea polyethylene e le tse nyenyane ka ho fetisisa har'a lisebelisoa tse ling, fiber ea UHMWPE e na le ts'ebetso eo fiber ea setso ea polyethylene e ke keng ea e finyella, 'me e na le phello e ntle ho feta lisebelisoa tse akaretsang, kahoo ke thepa e ratoang bakeng sa radome ea rada, ka boleng bo phahameng le phello e bobebe.

1. 3 Ho hanyetsa boemo ba leholimo le ho se mamelle

UHMWPE fiber e na le khanyetso e ntle ea boemo ba leholimo 'me e ka boloka ts'ebetso e phahameng ea mantlha e sa fetohe kamora nako e telele ea khanya le tikoloho e thata.Ka nako e ts'oanang, fiber ea UHMWPE e na le khanyetso e phahameng ea ho apara le ho hanyetsa mokhathala ho feta fiber ea aramid ka thepa e phahameng ea ts'ebetso, kahoo ho hanyetsa ho apara ha fiber ena ho molemo ho feta likhoele tse ling tse phahameng tsa tshebetso.Ka lebaka la khanyetso ea eona e phahameng ea ho roala le ts'ebetso e bonolo ea ts'ebetso, e na le tebello e ntle ea ts'ebeliso lefapheng la indasteri.

1. 4 Ho hanyetsa ho bola ha lik'hemik'hale

Sebopeho sa kahare sa fiber ea UHMWPE se batla se le thata.Ke hantle ka lebaka la khanya e phahameng ea kristale le mokhoa oa ho shebana le ketane ea molek'hule ka hare ho fiber hore fiber e na le inertia e matla ea lik'hemik'hale.Ka hona, tlas'a boemo ba acid le setsi kapa boemo ba mocheso o phahameng le o tlaase, fiber e ka boloka ts'ebetso ea eona ea pele e sa fetohe ka nako e telele, 'me e ntse e ikamahanya le ho bapala boleng ba eona tikolohong e thata.

1. Lintho tse 5 tsa ho itlotsa

Lisebelisoa tsa UHMWPE ha li bapisoa le lisebelisoa tse ling tsa boenjiniere, thepa ea UHMWPE e na le ntho e tlaase haholo ea likhohlano, ntho e tlaase ea likhohlano e etsa hore fiber ka boeona e be betere ea ho itlhoekisa, ke thepa e ntle ka ho fetisisa ea thepa ea polasetiki tlas'a boemo ba ho se be le lubricant, kahoo thepa ea UHMWPE e sebelisoa haholo. ka boenjiniere, ka boleng ba tšebeliso e phahameng haholo.UHMWPE fiber e sebelisoa ts'ebetsong ea mochine, ha e bapisoa le tšepe ea setso le koporo tlas'a ts'ebetso ea lubricant e molemo.Ka hona, ha e bapisoa le lisebelisoa tse tloaelehileng, fiber ea UHMWPE ha e boloke litšenyehelo tsa thepa e tala feela, empa e boetse e tiisa phello e ntle ea ts'ebetso, kahoo e na le boleng bo phahameng ba tšebeliso.

2. Mokhoa oa ho itokisa oa fiber ea UHMWPE

2.1 Mokhoa oa ho ohla li-gel

Ho na le mekhoa e mengata ea ho lokisetsa fiber e phahameng ea UHMWPE, empa ka lebaka la ho qhibiliha ka boeona, ho lokisoa ha fiber ea UHMWPE ho ke ke ha finyelloa.Ho ohla li-gel ke mokhoa o bonolo ka ho fetisisa.Mokhoa oa ho ohla li-gel o fapane le tharollo e akaretsang ea ho ohla kapa ho ohla ka metsi, ka kakaretso ho sebelisoa li-polymers tse boima ba limolek'hule e le lisebelisoa tse tala, tse entsoeng ka tharollo ea semi dilute joalo ka ho phunya dope, tharollo ea ketane ea molek'hule e tenyetsehang ka har'a tharollo ea semi dilute, ebe e ohla, crystallization, ketane e phahameng ea ho otlolla, ka mor'a kalafo ea ho ntšoa ho isa linakong tsa ho otlolla mocheso, o entsoeng ka matla a phahameng le likhoele tse phahameng tsa modulus.Mokhoa oa ho ohla li-gel o na le litšobotsi tse latelang tsa motheo: (1) polymer ea boima bo phahameng ba molek'hule e sebelisoa e le thepa e tala;(2) sebelisa semi-dilute solution e le spinning stock;(3) ho otlolla ha hyperthermal ho ile ha etsoa, ​​​​'me karo-karolelano ea tsitsipano e ne e le kholo ho feta 30.

2.2 Mokhoa oa ho etsa polasetiki o qhibilihisang

Melt spinning e entsoe ka polymer melted ka ho qhibiliha ho bilika le ho tsoa.Plasticized melt spinning ke motheong oa ho qhibiliha ho ohia, ho eketsa palo e nepahetseng ea diluent ho polymer qhibiliha bakeng sa ho ohla, ka har'a sekoti se kopantsoeng se qhibilihisitsoeng, ebe se fetisoa, se kolobisitsoe ka moemeli oa ho ntša, 'me ho otlolla khafetsa ho ka qetella ho fumana matla a phahameng. le fiber e phahameng ea modulus polyethylene.

2.3 Mokhoa o phahameng oa khatello ea boemo bo tiileng ba extrusion

Molao-motheo oa ho etsa extrusion ke hore granular solid solvent e eketsoa ho extruder, moqomo oa thepa o nang le mokelikeli o tiileng o futhumatsoa ho mocheso o qhibilihisang, e le hore thepa e tiileng e qhibilihe, sesebelisoa se entsoeng ka ho qhibiliha se isoa hloohong ea mochine ka sebopeho se tsitsitseng, ebe ka mor'a ho pholile le ho bōptjoa, sehlahisoa sa ho qetela sea tiea.Khatello e phahameng ea mokhoa o tiileng oa extrusion ke motheong oa extrusion e etsang hore ho be le khatello e phahameng ea ho qhibiliha, ho etsa mokelikeli, ebe ka lesoba la jete, ebe o phahama haholo, 'me qetellong o fumana polyethylene e phahameng ea limolek'hule.

2.4 Mokhoa oa ho kristale holim'a sefahleho

Ka lebaka la sekhahla sa ho hola butle ha kristale ea fibrous, mokhoa ona ha o sebelisoe hangata ho lokiseng fiber ea UHMWPE.

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