Yiziphi izikhumba, izikhumba ezifanayo, izindwangu ze-PU kanye ne-PVC?Ithini indlela yokuhlukanisa

Isikhumba sangempela

Isikhumba sangempela yigama elivamile emakethe yomkhiqizo wesikhumba.Igama lendabuko lesikhumba semvelo ukuhlukanisa isikhumba sokwenziwa.Emcabangweni wabathengi, isikhumba sangempela sibuye sibe nencazelo yokungelona inkohliso.Ikakhulukazi yenziwe ngesikhumba sesilwane.Kunezinhlobo eziningi zesikhumba, izinhlobonhlobo ezihlukahlukene, izakhiwo ezihlukene, izimfanelo ezihlukene, namanani ahlukene.Ngakho-ke, isikhumba sangempela yigama elijwayelekile laso sonke isikhumba semvelo, kanye nophawu olungacacile emakethe yezimpahla.

Ngokombono we-physiological, noma yisiphi isikhumba sesilwane sine-epidermis yezinwele kanye ne-dermis.Ngenxa yokuthi i-dermis iqukethe ama-fiber bundles amancane ahlanganisiwe, inamandla amakhulu kanye nokungena

I-epidermis itholakala ngaphansi kwezinwele futhi iseduze nengxenye engenhla ye-dermis.Ugqinsi lwe-epidermis olwakhiwe amangqamuzana e-epidermal anobunjwa obuhlukene buyahlukahluka ngezilwane ezahlukene.Isibonelo, ukujiya kwesikhumba sezinkomo kungu-0.5 ~ 1.5% wobukhulu obuphelele;I-2 ~ 3% yesikhumba sezimvu nesikhumba sembuzi;Isikhumba sengulube singu-2-5%.I-dermis itholakala ngaphansi kwe-epidermis, phakathi kwe-epidermis ne-subcutaneous tissue, futhi iyingxenye eyinhloko yesikhumba esiluhlaza.Isisindo saso noma ukujiya kufinyelela ngaphezu kwama-90% esikhumba esiluhlaza

Ukufanisa isikhumba

Ezinye izikhumba zenziwe ngezikhumba eziphukile, futhi ukwakheka kwesikhumba kungaphezu kwama-30%.Lokhu kubizwa ngokuthi ukuxuba isikhumba

Isikhumba sokwenziwa-

Isikhumba sokwenziwa yisona esithatha indawo yokuqala esakhelwe izindwangu zesikhumba.Yenziwe nge-PVC, i-plasticizer nezinye izithasiselo, i-calendered futhi ihlanganiswe phezu kwendwangu.Izinzuzo zayo zishibhile, zicebile ngombala, namaphethini amaningi.Ububi bayo ukuthi kulula ukuqina futhi embrittle

I-PU -

I-PU iwuhlobo lwempahla yokwenziwa yokwenziwa, enokwakheka kwesikhumba futhi ihlala isikhathi eside.Ihlukile kunesikhumba sokwenziwa.Isikhumba sokwenziwa se-PU sisetshenziswa esikhundleni sesikhumba sokwenziwa se-PVC.Intengo yayo iphakeme kunesikhumba sokwenziwa se-PVC.Mayelana nesakhiwo samakhemikhali, iseduze nendwangu yesikhumba.Ayidingi i-plasticizer ukufeza izakhiwo ezithambile, ngakho-ke ngeke ibe nzima noma ibe brittle.Ngesikhathi esifanayo, inezinzuzo zemibala ecebile namaphethini ahlukahlukene, futhi intengo yayo ishibhile kunendwangu yesikhumba, Ngakho-ke yamukelwa abathengi.

Indlela yokuhlukanisa yesikhumba sangempela ne-PU yesikhumba sokwenziwa

Indwangu yesikhumba kanye ne-PVC yesikhumba sokwenziwa ye-PU yesikhumba sokwenziwa ihlukaniswa ngezindlela ezimbili: eyodwa ingemuva kwendwangu, engabonakala ngemuva kwesikhumba sokwenziwa se-PVC se-PU sesikhumba sokwenziwa.Enye indlela evuthayo yokuncibilika, okuwukuthatha indwangu encane emlilweni, ukuze indwangu yesikhumba ingancibiliki, kuyilapho i-PVC yesikhumba sokwenziwa ye-PU izoncibilika.

Umehluko phakathi kwe-PU nesikhumba sokwenziwa:

Umehluko phakathi kwesikhumba sokwenziwa se-PVC nesikhumba sokwenziwa se-PU ungahlukaniswa ngokucwilisa ucezu oluncane lwendwangu kuphethiloli isigamu sehora, bese ulukhipha.Uma kuyisikhumba sokwenziwa se-PVC, sizoba lukhuni futhi sibe brittle.Uma kuyisikhumba sokwenziwa kwe-PU, ngeke sibe lukhuni futhi sibe brittle