Ingabe i-epoxy glass fiber rod inobuthi?

Izinhlaka ze-epoxy kanye ne-epoxy resin adhesives azinabo ubuthi, kepha ngenxa yokwengezwa kwamakhemikhali awuketshezi nezinye izinto ezinobuthi ngenkathi kulungiselelwa, izinhlaka eziningi ze-epoxy “zinobuthi”. Eminyakeni yamuva nje, imboni ye-epoxy resin yasekhaya yamukela ukuguqulwa okususelwa emanzini ukugwema ukungezwa nezinye izindlela zokugcina isimo se-epoxy “esingenabuthi”. Okwamanje, ukugcotshwa okuningi kwe-epoxy resin kumbozwe nge-solvent-based, okuqukethe inani elikhulu lama-organic compounds (VOC), anobuthi futhi avutha kalula, okwenza lokho kulimaze imvelo nomzimba womuntu.

I-epoxy resin ngokuvamile isetshenziswa kanye nezithasiselo ukuthola inani lohlelo lokusebenza. Izithasiselo zingakhethwa ngokuya ngezinhloso ezahlukahlukene. Izithasiselo ezisetshenziswa kakhulu zifaka phakathi le mikhakha elandelayo: (1) umenzeli wokwelapha; (2) isishintshi; (3) ukugcwalisa; (4) ukuthambisa; abanye.

Ingabe i-epoxy glass fiber rod inobuthi? Phakathi kwabo, umenzeli ophulukisayo uyisengezo. Noma ngabe isetshenziswa njengesihlanganisi, ukumboza, noma ukugoqeka, kufanele ingezwe nge-ejenti elaphayo, ngaphandle kwalokho i-epoxy resin ayinakulapheka. Ama-resin epoxy ngokuvamile abhekisela kumakhemikhali e-organic polymer aqukethe amaqembu amabili noma ngaphezulu epoxy ku-molecule. Ngaphandle kwabambalwa, izihlobo zabo zamangqamuzana ezihlobene aziphakeme. Isakhiwo samangqamuzana se-epoxy resin sibonakala ngeqembu elisebenzayo le-epoxy ochungechungeni lwamangqamuzana. Iqembu le-epoxy lingatholakala ekugcineni, maphakathi noma ngesakhiwo sokujikeleza kochungechunge lwamangqamuzana. Ngoba ukwakheka kwamangqamuzana kuqukethe amaqembu asebenzayo epoxy, angabhekana nokusabela okuxhumanisa nezinhlobo ezahlukahlukene zama-ejenti okwelapha ukwenza ama-polymers angaxazululeki futhi angenakufakwa anezindlela ezintathu zenethiwekhi.

Ukusebenza nezici ze-epoxy resin

1. Amafomu ahlukahlukene. Izinhlaka ezahlukahlukene, ama-ejenti aphulukisayo, kanye nezinhlelo zokuguqula cishe zingazivumelanisa nezidingo zezinhlelo zokusebenza ezahlukahlukene kwifomu, futhi ububanzi bungaba kusuka ku-viscosity ephansi kakhulu kuye kokuqina okuphezulu kokuncibilika.

2. Ukwelapha okulula. Khetha ama-ejenti ahlukahlukene aphulukisayo, uhlelo lwe-epoxy resin cishe lungalapheka ebangeni lokushisa elingu-0 ~ 180 ℃.

3. Ukunamathela okuqinile. Amaqembu aphethwe yi-polar hydroxyl kanye nezibopho ze-ether ochungechungeni lwamangqamuzana ezinhlaka ze-epoxy zikwenza kube ukunamathela kakhulu ezintweni ezahlukahlukene. Ukuncipha kwe-epoxy resin kuphansi lapho welapha, futhi ukucindezela kwangaphakathi okukhiqizwe kuncane, okusiza nokwenza ngcono amandla wokubambelela.

4. Ukuncipha okuphansi. Ukusabela phakathi kwe-epoxy resin kanye ne-ejenti ephulukisayo esetshenziswayo kwenziwa ngokufaka okuqondile ngqo noma ukuvulwa kwendandatho kokuphendula kwamaqembu epoxy ku-molecule ye-resin, futhi awekho amanzi noma eminye imikhiqizo evela ezintekenteke ekhishwayo. Uma kuqhathaniswa nezinhlayiya ze-polyester ezingasetshenziswanga nama-phenolic resins, akhombisa ukuncipha okuphansi kakhulu (ngaphansi kuka-2%) ngesikhathi sokuphulukiswa.

5. Izakhiwo zemishini. I-epoxy resin system ephulukisiwe inezakhiwo ezinhle kakhulu zomshini.

6, ukusebenza kagesi. Uhlelo lwe-epoxy resin ephulukisiwe luyinto enhle kakhulu yokuvikela impahla enezakhiwo eziphezulu ze-dielectric, ukumelana nokuvuza kwendawo, nokumelana ne-arc.

7. Ukuzinza kwamakhemikhali. Ngokuvamile, i-epoxy resin system ephulukisiwe inokumelana okuhle kwe-alkali, ukumelana ne-asidi nokumelana ne-solvent. Njengezinye izakhiwo zesistimu ye-epoxy ephulukisiwe, ukuqina kwamakhemikhali futhi kuya nge-resin ekhethiwe kanye ne-ejenti elaphayo. Ukukhethwa okufanele kwe-epoxy resin kanye ne-ejenti yokwelapha kungayenza ibe nokuzinza okukhethekile kwamakhemikhali.

8. Ukuzinza kobukhulu. Ukuhlanganiswa kwezindawo eziningi ezingenhla kunika uhlelo lwe-epoxy resin ukuzinza okuqinile nokuqina.

9, ukumelana nesikhunta. Uhlelo lwe-epoxy resin olwelisiwe luyamelana nezikhunta eziningi futhi lungasetshenziswa ezimweni ezinzima zasezindaweni ezishisayo.