Ukusho ukuthi kunezinhlobo ezimbalwa zezinto zesikhwama setiye, izinto ezijwayelekile zesikhwama setiye emakethe yi-corn fiber, impahla engalukiwe ye-pp, impahla yesilwane esifuywayo engalukiwe kanye nezinto zephepha lokuhlunga, kanye
Izikhwama zetiye zephepha eziphuzwa amaBritish nsuku zonke. Iluphi uhlobo lwesikhwama setiye esilahlwayo olulungile? Ngezansi isingeniso salezi zinhlobo zezikhwama zetiye.
1. Isikhwama setiye se-corn fiber
I-corn fibre iyifayibha yokwenziwa eyenziwe ngommbila, ukolweni nezinye isitashi njengezinto ezingavuthiwe, ezakhiwe ngokukhethekile zibe yi-lactic acid bese i-polymerized bese iphothwa. Kuyi-fiber eqeda ukujikeleza kwemvelo futhi i-biodegradable. I-fiber ayisebenzisi nhlobo i-petroleum nezinye izinto zokusetshenziswa zamakhemikhali, futhi imfucumfucu yayo ingachithwa ibe yi-carbon dioxide namanzi ngaphansi kwesenzo se-microorganisms enhlabathini nasemanzini olwandle, futhi ngeke ingcolise imvelo yomhlaba wonke.
2. Isikhwama setiye esingalukiwe se-pp
I-pp material i-polypropylene, okuyi-polymer enga-chiseled, engenaphunga, futhi engenambitheki emhlophe ecwebezelayo. I-PP polyester iwuhlobo lwe-amorphous, indawo yayo yokuncibilika kufanele ibe ngaphezu kwama-220, futhi izinga lokushisa lokuma kwayo elishisayo kufanele libe ngama-degree angama-121. Kodwa ngenxa yokuthi iyi-polymer ye-macromolecular ngemva kwakho konke, izinga lokushisa liphakeme, ukuhlaziya okuncane
Amakhulu amathuba okuba ama-oligomers, futhi iningi lalezi zinto azilungile empilweni yomuntu. Ngaphezu kwalokho, ngokusetshenziswa kwekhasimende, amanzi abilayo ngokuvamile angama-degree angu-100, ngakho-ke izinkomishi zepulasitiki ezijwayelekile ngeke zimakwe ngamadigri angaphezu kuka-100.
3. Isikhwama setiye sempahla yesilwane esifuywayo esingalukiwe
Njengempahla yokupakisha, i-PET inokumelana okuhle kakhulu nokushisa okuphezulu nokuphansi. Ingasetshenziswa isikhathi eside ebangeni lokushisa lama-degree angu-120, futhi ingakwazi ukumelana nokushisa okuphezulu kwama-degree angu-150 ukuze isetshenziswe isikhathi esifushane. Ukungena kwegesi nomhwamuko wamanzi kuphansi, futhi kunokumelana okuhle kakhulu kwegesi, amanzi, uwoyela kanye nephunga elingavamile. Ukucaca okuphezulu kanye nokucwebezela okuhle. Ayinabuthi, ayinambitheki, futhi inenhlanzeko nokuphepha okuhle, futhi ingasetshenziswa ngokuqondile ekudleni.
4. Izikhwama zetiye ezenziwe ngephepha lokuhlunga
Ngaphezu kwephepha lokuhlunga elisetshenziswa kuma-laboratories ajwayelekile, kunezicelo eziningi zephepha lokuhlunga empilweni yansuku zonke, futhi iphepha lokuhlunga ikhofi lingenye yazo. Iphepha lokuhlunga kungqimba lwangaphandle lwesikhwama setiye linikeza ukuthamba okuphezulu namandla amanzi. Amaphepha amaningi okuhlunga enziwe ngemicu kakotini, futhi kunezimbobo ezincane ezingenakubalwa endaweni yawo ukuze kudlule izinhlayiya eziwuketshezi, kuyilapho izinhlayiya eziqinile ezinkulu zingashiwongo.
5. Izikhwama zetiye zephepha
Enye yezinto zokusetshenziswa ezisetshenziswa kulesi sikhwama setiye sephepha i-abaca. Le nto incane futhi inemicu emide. Iphepha elikhiqiziwe linamandla futhi li-porous, lidala izimo ezifanele zokusabalalisa ukunambitheka kwetiye. Enye impahla eluhlaza iyifayibha yepulasitiki evala ukushisa, esebenza ukuvala isikhwama setiye. Lepulasitiki ayiqali ukuncibilika ize ifudumale ibe ngu-160°C, ngakho akulula ukuyihlakaza emanzini. Ukuze uvimbele isikhwama setiye ngokwaso ukuthi singaqedwa emanzini, into yesithathu, i-pulp yokhuni, nayo yengezwa. Ngemva kokuba ingxube ye-abaca nepulasitiki isikhishiwe, yambozwa ungqimba lwe-pulp yokhuni, futhi ekugcineni yafakwa emshinini wephepha omkhulu ongamamitha angu-40 ubude, futhi iphepha lesikhwama setiye lazalwa.
Isikhathi sokuthumela: Nov-18-2021