Yintoni ufele, ufele oluhambelanayo, amalaphu ePU kunye nePVC?Yintoni indlela yokwahlula

Isikhumba sokwenyani

Isikhumba sokwenyani ligama eliqhelekileyo kwimarike yemveliso yesikhumba.Ligama lesintu lesikhumba sendalo ukwahlula ufele olusetyenzisiweyo.Kwingqikelelo yabathengi, ithwathwa lokwenyani linentsingiselo yokunganyaniseki.Ikakhulu yenziwe ngesikhumba sesilwanyana.Kukho iintlobo ezininzi zesikhumba, iintlobo ezahlukeneyo, izakhiwo ezahlukeneyo, iimpawu ezahlukeneyo, kunye namaxabiso ahlukeneyo.Ke ngoko, ufele lokwenyani ligama eliqhelekileyo lazo zonke izithwathwa zendalo, kunye nophawu olungacacanga kwimarike yempahla.

Ukususela kumbono we-physiological, nasiphi na isikhumba sesilwanyana sineenwele ze-epidermis kunye ne-dermis.Ngenxa yokuba i-dermis iqulethe i-fiber bundles encinci edibeneyo, inamandla amakhulu kunye nokungena

I-epidermis ifumaneka phantsi kweenwele kwaye isondele kwindawo ephezulu yedermis.Ubunzima be-epidermis eyenziwe ngeeseli ze-epidermal zeemilo ezahlukeneyo ziyahluka kwizilwanyana ezahlukeneyo.Ngokomzekelo, ubukhulu besikhumba senkomo yi-0.5 ~ 1.5% yobukhulu obupheleleyo;I-2 ~ 3% yesikhumba segusha kunye nesikhumba sebhokhwe;Isikhumba sehagu ngu 2-5%.I-dermis ifumaneka phantsi kwe-epidermis, phakathi kwe-epidermis kunye ne-subcutaneous tissue, kwaye iyona nxalenye ephambili yesikhumba esiluhlaza.Ubunzima bayo okanye ubukhulu bayo bubalelwa ngaphezulu kwe-90% yesikhumba esikrwada

Ukuthelekisa ulusu

Ezinye izikhumba zenziwe ngezikhumba eziphukileyo, kwaye ukubunjwa kwesikhumba kungaphezulu kwe-30%.Oku kubizwa ngokuba kukudibanisa ulusu

Isikhumba sokwenziwa-

Isikhumba esingeyonyani sesona sixhobo sithatha indawo yokuqala eyenziwe ngamalaphu ethwathwa.Yenziwe nge-PVC, i-plasticizer kunye nezinye izongezo, i-calendered kwaye ihlanganiswe kwilaphu.Iingenelo zayo zitshiphu, zityebile ngombala, kunye neepateni ezininzi.Ukungalungi kwayo kukuba kulula ukuba lukhuni kunye ne-embrittle

PU -

I-PU luhlobo lwezinto ezenziweyo ezenziweyo, ezinokwakheka kwesikhumba kwaye zihlala ixesha elide.Yahlukile kwisikhumba sokwenziwa.I-PU yesikhumba eyenziweyo isetyenziselwa ukubuyisela i-PVC yesikhumba sokwenziwa.Ixabiso layo liphezulu kune PVC yesikhumba eyenziweyo.Ngokumalunga nokwakheka kweekhemikhali, isondele kwilaphu lesikhumba.Ayidingi i-plasticizer ukufezekisa iipropathi ezithambileyo, ngoko ayiyi kuba nzima okanye ibe brittle.Kwangaxeshanye, ineengenelo zemibala etyebileyo kunye neepatheni ezahlukeneyo, kwaye ixabiso layo lishibhile kunelaphu lesikhumba, ngoko ke yamkelwa ngabathengi.

Indlela yokwahlula kwesikhumba sokwenyani kunye ne-PU yesikhumba eyenziweyo

Ilaphu lesikhumba kunye ne-PVC yesikhumba eyenziweyo ye-PU yesikhumba sokwenziwa yahlulwa ngeendlela ezimbini: enye ingasemva kwelaphu, enokubonwa ngasemva kwe-PVC yesikhumba eyenziweyo ye-PU yesikhumba sokwenziwa.Enye yindlela evuthayo yokunyibilika, leyo kukuthatha ilaphu elincinci emlilweni, ukuze ilaphu lesikhumba linganyibiliki, ngelixa i-PVC eyenziwe ngesikhumba eyenziwe nge-PU iya kunyibilika.

Umahluko phakathi kwePU kunye nesikhumba sokwenziwa:

Umahluko phakathi kwesikhumba sokwenziwa kwePVC kunye ne-PU yesikhumba sokwenziwa sinokubonakala ngokufunxa intwana encinci yelaphu kwipetroli kangangesiqingatha seyure, emva koko uyikhuphe.Ukuba i-PVC yesikhumba eyenziweyo, iya kuba lukhuni kwaye ibe brittle.Ukuba yi-PU yesikhumba eyenziweyo, ayiyi kuba nzima kwaye ibe brittle