Yiziphi izinhlobo ze-fiber ezivame ukusetshenziswa ku-polymer mortar?

Ukwengeza amafayibha odakeni lwe-polymer ukuze kuthuthukiswe ukusebenza okuphelele kodaka sekuyindlela evamile futhi engenzeka. Imicu esetshenziswa kakhulu yilena elandelayo

I-fiberglass engazweli nge-alkali?

I-Glass fiber yenziwa ngokuncibilikisa i-silicon dioxide, ama-oxide aqukethe i-aluminium, i-calcium, i-boron nezinye izakhi, kanye nenani elincane lezinsiza zokucubungula ezifana ne-sodium oxide ne-potassium oxide zibe amabhola engilazi, bese incibilika futhi idwebe amabhola engilazi ku-crucible. Intambo ngayinye edonswa ku-crucible ibizwa ngokuthi i-monofilament, futhi wonke ama-monofilaments athathwe ku-crucible ahlanganiswa abe yintambo eluhlaza (tow) ngemva kokudlula ethangini elicwiliswayo. Ngemuva kokusikwa kwe-tow, ingasetshenziswa ku-polymer mortar.

Izici zokusebenza ze-glass fiber zinamandla aphezulu, i-modulus ephansi, ukuphakama okuphezulu, i-coefficient ephansi yomugqa wokunweba, kanye ne-thermal conductivity ephansi. Amandla aqinile we-glass fiber adlula kakhulu amandla ezinto ezihlukahlukene zensimbi (1010-1815 MPa).

I-Velen fiber?

Ingxenye eyinhloko ye-vinylon i-polyvinyl alcohol, kodwa i-vinyl alcohol ayizinzile. Ngokuvamile, i-vinyl alcohol acetate (i-vinyl acetate) esebenza ngokuzinzile isetshenziswa njenge-monomer ukwenza i-polymerize, bese umphumela we-polyvinyl acetate u-alcohollated ukuze uthole utshwala be-polyvinyl. Ngemva kokuba usilika selashwe nge-formaldehyde, i-vinylon engamelana namanzi ashisayo ingatholakala. Izinga lokushisa elincibilikayo (225-230C) le-polyvinyl alcohol lingaphezulu kwezinga lokushisa lokubola (200-220C), ngakho liphothwa ngokuphothwa kwesixazululo.

IVinylon ine-hygroscopicity eqinile futhi iwuhlobo olune-hygroscopic kakhulu phakathi kwemicu yokwenziwa, esondele ukotini (8%). I-Vinylon inamandla kancane kunokotini futhi inamandla kakhulu kunovolo. Ukumelana nokugqwala nokumelana nokukhanya: okungancibiliki ngokujwayelekile kuma-asidi e-organic, ama-alcohol, ama-ester kanye nezincibilikisi zesibani se-petroleum, akulula ukubumba, futhi ukuncipha kwamandla akukukhulu lapho kuvezwa ukukhanya kwelanga. Okubi ukuthi ukumelana namanzi ashisayo akwanele futhi ukunwebeka kubi.

I-Acrylic fiber?

Isho ifayibha yokwenziwa eyenziwe ukuphotha okumanzi noma ukuphotha okomile okungaphezu kuka-85% we-copolymer ye-acrylonitrile kanye ne-monomer yesibili neyesithathu.

I-Acrylic fiber inokumelana nokukhanya okuhle kakhulu kanye nokumelana nesimo sezulu, okuhamba phambili phakathi kwemicu yendwangu evamile. Uma i-acrylic fibre ichayeka elangeni unyaka owodwa, amandla ayo azokwehla ngo-20%. I-Acrylic fiber inokuqina okuhle kwamakhemikhali, ukumelana ne-asidi, ukumelana ne-alkali okubuthakathaka, ukumelana ne-oxidation kanye nokumelana ne-organic solvent. Kodwa-ke, imicu ye-acrylic izophenduka ibe phuzi ku-lye, futhi ama-macromolecules azophuka. Isakhiwo se-quasi-crystalline se-acrylic fiber senza i-fiber thermoelastic. Ngaphezu kwalokho, i-acrylic fiber inokumelana okuhle nokushisa, akukho sikhunta, futhi ayizesabi izinambuzane, kodwa inokumelana okubuthakathaka kokugqoka kanye nokuzinza okubi kwe-dimensional.

Imicu ye-polypropylene?

I-polyolefin fiber eyenziwe nge-stereoregular isotactic polypropylene polymer ngokuncibilika kokuphotha. Ukuminyana okuhlobene kuncane phakathi kwemicu yokwenziwa, amandla omile namanzi ayalingana, futhi ukumelana nokugqwala kwamakhemikhali kuhle. Kodwa ukuguga kwelanga kumpofu. Lapho i-polypropylene mesh fiber ifakwa odakeni, phakathi nenqubo yokuxuba udaka, ukuxhumana okuguquguqukayo phakathi kwe-fiber monofilaments kubhujiswa ukuhlikihla nokungqubuzana kodaka ngokwalo, futhi i-fiber monofilament noma isakhiwo senethiwekhi sivulwa ngokugcwele, ngakho-ke. ukuze kubonwe ubungako Umphumela wemicu eminingi ye-polypropylene exutshwe ngokulinganayo kukhonkolo.

Ifayibha enayiloni?

I-Polyamide, evame ukwaziwa ngokuthi inayiloni, igama elivamile lezinhlaka ze-thermoplastic eziqukethe amaqembu e-amide aphindaphindiwe—[NHCO]—eketango lamangqamuzana amakhulu.

Inayiloni inamandla amakhulu okusebenza, indawo yokuthambisa ephezulu, ukumelana nokushisa, ukungqubuzana okuphansi, ukumelana nokugqoka, ukuzigcoba, ukumuncwa ukushaqeka kanye nokunciphisa umsindo, ukumelana nowoyela, ukumelana ne-asidi ebuthakathaka, ukumelana ne-alkali nezinyibilikisi ezijwayelekile, ukufakwa kahle kukagesi, ine-Self- ezicishayo, ezingenabuthi, ezingenaphunga, ukumelana nesimo sezulu esihle, ukudaya okungekuhle. Ububi ukuthi inokumuncwa okuphezulu kwamanzi, okuthinta ukuzinza kwe-dimensional kanye nezakhiwo zikagesi. Ukuqinisa i-fiber kunganciphisa ukumuncwa kwamanzi kwe-resin, ukuze isebenze ngaphansi kwezinga lokushisa eliphezulu kanye nomswakama ophezulu. Inayiloni inokuhlobana okuhle kakhulu nemicu yengilazi.

I-polyethylene fiber?

Amafayibha e-Polyolefin asontelwe kusuka ku-polyethylene ewumugqa (i-polyethylene ephezulu kakhulu) ngokuncibilika kokuphotha. Izici zedivayisi yilezi:

(1) Amandla e-fiber nokwelula kuseduze naleyo ye-polypropylene;

(2) Amandla okumunca umswakama afana nalawo e-polypropylene, futhi izinga lokubuyiswa komswakama linguziro ngaphansi kwezimo ezivamile zomkhathi;

(3) Inezindawo zamakhemikhali ezizinzile, ukumelana namakhemikhali okuhle kanye nokungagqwala;

(4) Ukumelana nokushisa kubi, kodwa ukumelana nokushisa nomswakama kungcono, indawo yayo yokuncibilika i-110-120 ° C, ephansi kunezinye izintambo, futhi ukumelana nemigodi yokuncibilika kubi kakhulu;

(5) Inokufakwa kahle kukagesi. Ukumelana nokukhanya akulungile, futhi kulula ukuguga ngaphansi kwemisebe yokukhanya.

I-Aramid fiber?

Iketango eliyinhloko le-macromolecule ye-polymer lakhiwe izindandatho ezinephunga elimnandi nezibopho ze-amide, futhi okungenani ama-85% wamaqembu e-amide ahlanganiswe ngokuqondile namasongo anephunga elimnandi; ama-athomu e-nitrogen namaqembu e-carbonyl emaqenjini e-amide eyunithi ngayinye ephindaphindayo ahlanganiswe ngokuqondile namasongo anephunga elimnandi I-polymer okuxhunywa kuyo ama-athomu ekhabhoni futhi ithatha indawo ye-athomu ye-hydrogen ibizwa ngokuthi i-aramid resin, futhi imicu ephothwa kuyo ibizwa ngokuthi iqoqo. imicu ye-aramide.

I-Aramid fibre inezinto ezinhle kakhulu zomshini neziguqukayo ezifana namandla okushuba okuphezulu, i-high tensile modulus, ukuminyana okuphansi, ukumuncwa okuhle kwamandla kanye nokumunca ukushaqeka, ukumelana nokugqoka, ukumelana nomthelela, ukumelana nokukhathala, nokuzinza kobukhulu. Ukugqwala kwamakhemikhali, ukumelana nokushisa okuphezulu, ukunwetshwa okuphansi, ukuguquguquka okushisayo okuphansi, okungashi, okungancibiliki kanye nezinye izakhiwo ezishisayo ezishisayo kanye nezakhiwo ezinhle kakhulu ze-dielectric.

i-wood fiber?

I-Wood fiber isho izicubu eziwumshini ezakhiwe ngodonga lweseli oluqinile oluqinile kanye namaseli efayibha anemigodi efana nokuqhekeka, futhi ingenye yezingxenye eziyinhloko ze-xylem.

I-Wood fiber iyi-fiber yemvelo emunca amanzi futhi ayincibiliki emanzini. Inokuguquguquka okuhle kakhulu kanye ne-dispersibility.