Ngokuthuthuka kancane kancane kwezikhathi, izimpilo zabantu ziye zashintsha kakhulu, futhi ukusetshenziswa kwezinto ezintsha ezihlukahlukene kuye kwanda kakhulu. Ngokwesibonelo, PVC kanyeEVAizinto zokwakha zisetshenziswa kakhulu empilweni yanamuhla, kodwa abantu abaningi bazidida kalula. . Okulandelayo, masiqonde umehluko phakathi kwezinto ze-PVC ne-EVA.
1. Ukubukeka nokuthungwa okuhlukile:
I-PVC ezwekazini laseShayina ingahlukaniswa ngezinhlobo ezimbili: ezinobuthi obuphansi futhi ezinobungani bemvelo futhi ezingenabuthi futhi ezinobungani bemvelo. Izinto ze-EVA zonke ziyizinto ezihambisana nemvelo. Ubuso be-Eva buthambile; ukuqina kwayo okuqinile kunamandla kunokwePVC, futhi izwakala inamathele (kodwa akukho glue ngaphezulu); imhlophe futhi isobala, futhi i-transparent High, ukuzwa nokuzizwa kufana kakhulu nefilimu ye-PVC, ngakho-ke kufanele kuqashelwe ukuze kuhlukaniswe.
2. Izinqubo ezahlukene:
I-PVC i-thermoplastic resin eyenziwe nge-vinyl chloride ngaphansi kwesenzo se-initiator. I-homopolymer ye-vinyl chloride. I-vinyl chloride homopolymer ne-vinyl chloride copolymer zihlangene zibizwa ngokuthi i-vinyl chloride resin. I-PVC yake yaba yipulasitiki esetshenziswa kabanzi emhlabeni wonke futhi yayisetshenziswa kabanzi. I-molecular formula ye-EVA (ethylene vinyl acetate copolymer) yi-C6H10O2 futhi isisindo sayo samangqamuzana yi-114.1424. Le nto isetshenziswa njengezinhlobonhlobo zamafilimu, imikhiqizo yegwebu, izinto zokunamathisela ezincibilikayo ezishisayo nezilungisi ze-polymer.
3. Ubumnene nobulukhuni obuhlukene: Umbala wemvelo we-PVC uphuzi kancane, uyacwebezela futhi uyacwebezela. Ukucaca kungcono kune-polyethylene ne-polystyrene, kodwa kubi kune-polystyrene. Ngokuya ngenani lezithasiselo, ihlukaniswe yaba i-polyvinyl chloride ethambile futhi eqinile. Imikhiqizo ethambile iyashintshashintsha futhi iqinile futhi izwakala inamathele, kuyilapho imikhiqizo eqinile inobulukhuni obuphakeme kune-polyethylene ephansi. , futhi ngaphansi kwe-polypropylene, ukumhlophe kuzokwenzeka endaweni yokushintshashintsha. I-EVA (i-ethylene vinyl acetate copolymer) ithambile kune-PVC.
4. Amanani ahlukile:
Impahla ye-PVC: Intengo ngethani iphakathi kuka-6,000 no-7,000 yuan. Izinto ze-EVA zinokujiya okuhlukile nezintengo. Intengo ingaba ngu-2,000/cubic meter.
5. Izici ezihlukene:
I-PVC inezinto ezinhle zokuvala ugesi, ingasetshenziswa njengezinto ezisetshenziswayo zokuvala imvamisa ephansi, nokuzinza kwayo kwamakhemikhali nakho kuhle. Ngenxa yokungaqini kahle kokushisa kwe-polyvinyl chloride, ukushisa isikhathi eside kuzodala ukubola, ukukhishwa kwegesi ye-HCl, nokushintsha kombala kwe-polyvinyl chloride. Ngakho-ke, uhla lwayo lokusebenza luncane, futhi izinga lokushisa lokusetshenziswa ngokuvamile liphakathi kuka-15 no-55 degrees. I-EVA iqinile ekamelweni lokushisa. Uma kushisa, liyancibilika ngezinga elithile futhi libe uketshezi olukwazi ukugeleza futhi lube ne-viscosity ethile.
Isikhathi sokuthumela: Jun-10-2024