Iimpawu ezigqwesileyo zefayibha ye-UHMWPE

Ifayibha ye-UHMWPE ineepropathi ezininzi ezigqwesileyo, ezinjengeepropathi ezigqwesileyo zoomatshini, ukuxhathisa okugqwesileyo kwempembelelo, ukuxhathisa okugqwesileyo kokunxiba, ukuxhathisa ukubola kweekhemikhali, ukumelana nokukhanya okugqwesileyo njalo njalo.

1. Iimpawu ezigqwesileyo zomatshini we-UHMWPE fiber.

Ifayibha ye-UHMWPE ineempawu ezibalaseleyo zoomatshini.Phantsi koxinaniso lomgca ofanayo, ukomelela kwefayibha ye-UHMWPE ngama-15 aphindwe ka-15 entambo yocingo lwentsimbi.Yi-40% ephezulu kune-aramid fiber, ekwayenye yeentsinga ezintathu eziphezulu zobuchwepheshe emhlabeni, kunye namaxesha angama-10 aphezulu kune-high-quality fiber kunye ne-chemical fiber.Xa kuthelekiswa nentsimbi, i-E-glass, inayiloni, i-polyamine, i-carbon fiber kunye ne-boron fiber, amandla ayo kunye ne-modulus ziphezulu kunezo zale micu, kwaye amandla ayo aphezulu kakhulu phakathi kwezinto ezisemgangathweni ofanayo.

2.Ukumelana nempembelelo egqwesileyo yefayibha ye-UHMWPE

I-Ultra high molecular weight polyethylene fiber inefuthe elihle lokuchasa.Ikhono layo lokufunxa amandla kunye nokuxhathisa impembelelo ngexesha lokuguqulwa kunye nokubumba kuphezulu kunefayibha ye-aramid kunye ne-carbon fiber, ekwayi "fibers ezintathu eziphezulu zobuchwepheshe emhlabeni".Xa kuthelekiswa ne-polyamide, i-aramid, i-fiber yeglasi ye-E, i-carbon fiber kunye nefayibha ye-aramid, ifayibha ye-UHMWPE inokufunxa ngokupheleleyo amandla ngaphezu kwempembelelo.

3. Ukumelana okugqwesileyo kokunxiba kwefayibha ye-UHMWPE

Ngokubanzi, okukhona imodyuli enkulu yemathiriyeli, kokukhona isezantsi ukuxhathisa kokunxiba, kodwa kwifayibha ye-UHMWPE, okwahlukileyo kuyinyani.Ngenxa yokuba ifayibha ye-UHMWPE ine-coefficient esezantsi yokukhuhlana, okukhona imodulus inkulu, kokukhona iphezulu ukumelana nokunxiba.Ukuthelekisa i-coefficient ye-friction ye-UHMWPE ifayibha kunye ne-carbon fiber kunye ne-aramid fiber, ukuxhathisa ukunxiba kunye nokudinwa kwe-UHMWPE ifayibha ziphezulu kakhulu kunezo ze-carbon fiber kunye ne-aramid fiber.Ke ukuxhathisa kwayo ukunxiba kungcono kunezinye iifibers eziphezulu zokusebenza.Ngenxa yokunganyangeki kwayo okugqwesileyo kunye nokumelana nokugoba, ukusebenza kwayo kuphezulu, kwaye kulula ukwenziwa kwezinye izinto ezidibeneyo kunye namalaphu.

I-4.I-Chemical corrosion resistance ye-UHMWPE fiber

Ubume bemichiza ye-UHMWPE ifayibha ilula kwaye iimpawu zayo zeekhemikhali zizinzile.Ngaphezu koko, ine-crystalline structure orientation orientation, eyenza ukuba ingabi yingozi kakhulu ekuhlaselweni kwezakhi zofuzo ezisebenzayo kwi-acids eqinile kunye neziseko eziqinileyo, kwaye inokugcina iimpawu zayo zangaphambili zeekhemikhali kunye nesakhiwo.Ngoko ke, izinto ezininzi zeekhemikhali akukho lula ukuzitshabalalisa.Zimbalwa kuphela izisombululo eziphilayo ezinokudumba kancinci, kwaye ilahleko yepropathi yoomatshini ingaphantsi kwe-10%.Ukugcinwa kwamandla e-UHMWPE ifayibha kunye nefayibha ye-aramid kwimidiya eyahlukeneyo yeekhemikhali yathelekiswa.Ukunganyangeki kokutya kwefayibha ye-UHMWPE ngokucacileyo iphezulu kunolo lwefayibha ye-aramid.Uzinzile ngokukodwa kwi-asidi, i-alkali kunye netyuwa, kwaye amandla ayo alahlekile kuphela kwisisombululo se-sodium hypochlorite.

5.Ukumelana nokukhanya okugqwesileyo kwe-UHMWPE fiber

Ngenxa yokuba ulwakhiwo lweekhemikhali ze-UHMWPE zefayibha zizinzile, ukuchasana nokukhanya kwayo kukwayeyona nto ilungileyo phakathi kwemicu yobuchwepheshe obuphezulu.Ifayibha ye-Aramid ayinakumelana ne-UV kwaye ingasetyenziswa kuphela phantsi kwemeko yokuphepha ukukhanya kwelanga.Ukuthelekisa i-fiber ye-UHMWPE kunye ne-nylon, i-aramid enemodyuli ephezulu kunye ne-modulus ephantsi, ukugcinwa kwamandla e-UHMWPE fiber kuphezulu kakhulu kunezinye iifiber.

6.Ezinye iimpawu zefayibha ye-UHMWPE

Ifayibha ye-UHMWPE ikwanepropathi efanelekileyo ye-hydrophobic, ukuxhathisa kwamanzi kunye nokufuma, ipropathi yokugquma umbane kunye nobomi obude be-tortuous.Yeyona fayibha yobuchwepheshe obuphezulu ekwaziyo ukudada emanzini, kwaye ikwayimathiriyeli efanelekileyo yobushushu obuphantsi.

Kodwa nayo ineziphene zayo, oko kukuthi, indawo yokunyibilika iphantsi.Ngexesha lokucubungula, iqondo lokushisa aliyi kudlula i-130 ℃, ngaphandle koko, into ekhasayo iya kwenzeka kwaye ubomi benkonzo buya kufinyezwa ngenxa yamandla abuthathaka phakathi kwamakhonkco eemolekyuli ze-UHMWPE fibers.Akukho qela ledayi kwifayibha ye-UHMWPE, eyenza ukuba ukumanzi kwayo kube mbi.Kunzima ukuba idayi ingene kwifiber, okukhokelela ekusebenzeni kakubi kokudaya.Ezi ntsilelo zichaphazela umda wesicelo sayo.