Ndezvipi zvinhu zvinokanganisa kupera kweEVA zvigadzirwa? Ini ndinotenda kuti vanhu vazhinji vari kunetsekana zvakanyanya nematambudziko akadai neEVA zvigadzirwa. Muchokwadi, EVA inoonekwa muhupenyu hwepamba sechinhu chakakosha izvozvi. Iyo inowanzoita senge inonzwika insulation material, floor material, cushioning material, etc. muzvirongwa zvekushongedza. EVA zvinhu zvine mabhenefiti akawanda sekapeti, sekuramba kwekudengenyeka kwepasi kwakanaka, kusapinda kwemvura, anti-magetsi, nezvimwe. Saka nhasi Dongyang Yirong Luggage ichapfupisa zvikonzero zvina zvikuru zvekuparara kwepurasitiki EVA zvigadzirwa:
Zvinhu zvinokanganisa kupera kwemapurasitiki EVA zvigadzirwa. Kupera kwezvigadzirwa zvine mavara epurasitiki kune hukama nekuramba kwechiedza, kuramba kweokisijeni, kupisa kupisa, asidhi uye alkali kuramba kwe pigment uye dhayi, pamwe nehunhu hweresin inoshandiswa. Zvinoenderana nemamiriro ekugadzirisa uye mashandisiro ezvigadzirwa zvepurasitiki, izvo zvataurwa pamusoro apa zvimiro zvepigment inodiwa, dhayi, surfactants, dispersants, carrier resins uye anti-kuchembera additives zvinofanirwa kuongororwa zvakadzama pakugadzira masterbatches vasati vasarudzwa.
Zvikonzero zvina zvikuru zvekupera kwezvigadzirwa zveEVA:
1. Acid uye alkali kuramba Kupera kwezvigadzirwa zvepurasitiki zvine mavara kune hukama nemakemikari kuramba eruvara (asidhi uye alkali kuramba, oxidation uye kuderedza kuramba)
Semuenzaniso, molybdenum chrome tsvuku inoshingirira kunyungudutsa asidhi, asi inonzwa kune alkali, uye cadmium yero haimirire acid. Aya ma pigment maviri uye phenolic resin ane simba rekudzikisira pane mamwe mavara, ayo anokanganisa zvakanyanya kupisa kwekupisa uye kuramba kwemamiriro ekunze kweruvara uye kukonzera kupera.
2. Antioxidant properties Mamwe ma organic pigments anopera zvishoma nezvishoma mushure me oxidation nekuda kwe macromolecular degradation kana dzimwe shanduko.
Iyi nzira ndeyepamusoro-tembiricha oxidation panguva yekugadzirisa uye oxidation paunosangana nemaoxidants akasimba (senge chromate mu chrome yero). Mushure megungwa reruvara, azo pigment uye chrome yero zvakasanganiswa, iro dzvuku richapera zvishoma nezvishoma.
3. Kugadzikana kwekupisa kwemavara anodzivirira kupisa kunoreva chiyero chekudzikira uremu, kushanduka uye kupera kwe pigment pakupisa kwekugadzirisa.
Inorganic pigment inoumbwa nesimbi oxides uye munyu, ine yakanaka kugadzikana kwekupisa uye kupisa kwakanyanya. Nekudaro, iyo pigment ye organic compounds ichaita shanduko muchimiro chemolecular uye diki yekuora pane imwe tembiricha. Kunyanya yePP, PA, uye PET zvigadzirwa, tembiricha yekugadzira iri pamusoro pe280 ℃. Pakusarudza mavara, kune rumwe rutivi, tinofanira kubhadhara kupisa kwepigment, uye kune rumwe rutivi, tinofanira kufunga nezvekupisa kupisa nguva ye pigment, iyo inowanzodiwa kuva 4-10 mvura.
4. Chiedza chekudzivirira Chiedza chechiedza chemavara chinokanganisa zvakananga kupera kwechigadzirwa
Kune zvigadzirwa zvekunze zvakafumurwa kune mwenje wakasimba, kupikisa kwechiedza (zuva rekudzivirira) chiyero chinodiwa cheruvara chinoshandiswa chiratidzo chakakosha. Kana chiyero chekudzivirira chiedza chisina kunaka, chigadzirwa chinopera nokukurumidza panguva yekushandiswa. Chiyero chekupikisa chiyero chakasarudzirwa zvigadzirwa zvinodzivirira mamiriro ekunze hachifanirwe kunge chakaderera pane nhanho 6, zvichida level 7 kana 8, uye nhanho 4 kana 5 yezvigadzirwa zvemukati. Kupikisa kwechiedza chekutakura resin kunewo simba guru pakuchinja kwemavara. Mushure mokunge resin yakavhenekerwa nemirairo ye ultraviolet, chimiro chayo che molecular inoshanduka uye inopera. Kuwedzera mwenje inogadzika senge ultraviolet absorbers kune masterbatch inogona kuvandudza mwenje kuramba kwemavara uye ane mavara epurasitiki zvigadzirwa.
Zvikonzero zvina zvikuru zvekupera kwezvigadzirwa zvepurasitiki EVA zvakagovaniswa pano. Kuteerera kune ari pamusoro apa kunogona kudzivirira zvinhu zvakashata zvakadai sekupera kweEVA zvigadzirwa; nekuda kwezvakanaka zveEVA zvinhu, iko zvino yava kunyanya kushandiswa muhupenyu hwezuva nezuva.
Nguva yekutumira: Sep-26-2024