- AS
1. Ukusebenza kwe-AS
I-AS iyi-propylene-styrene copolymer, ebizwa nangokuthi i-SAN, enokuminyana okungaba ngu-1.07g/cm3. Ayijwayele ukuqhekeka kwengcindezi yangaphakathi. Inokukhanya okuphezulu, izinga lokushisa eliphakeme lokuthambisa namandla okuthinta kune-PS, kanye nokumelana nokukhathala okungekuhle.
2. Ukusetshenziswa kwe-AS
Amathreyi, izinkomishi, izinto zetafula, izingxenye zesiqandisi, amafindo, izinsiza zokukhanyisa, imihlobiso, izibuko zamathuluzi, amabhokisi okupakisha, izinto zokubhala, izibani zegesi, izibambo zesixubho, njll.
3. AS izimo zokucubungula
Izinga lokushisa lokucubungula le-AS ngokuvamile lingama-210 ~ 250 ℃. Lesi sici kulula ukumunca umswakama futhi sidinga ukomiswa isikhathi esingaphezu kwehora elilodwa ngaphambi kokucubungula. I-fluidity yayo imbi kakhulu kune-PS, ngakho-ke ingcindezi yomjovo nayo iphakeme kancane, futhi izinga lokushisa lesikhunta lilawulwa ku-45 ~ 75 ℃ lingcono.
- I-ABS
1. Ukusebenza kwe-ABS
I-ABS i-acrylonitrile-butadiene-styrene terpolymer. Kuyi-polymer e-amorphous enesisindo esingaba ngu-1.05g/cm3. Inamandla amakhulu emishini kanye nezakhiwo ezinhle ezihlanganisa "okuqondile, okuqinile nensimbi". I-ABS iyipulasitiki yobunjiniyela esetshenziswa kabanzi enezinhlobonhlobo ezihlukahlukene nokusetshenziswa okubanzi. Ibizwa nangokuthi "ipulasitiki yobunjiniyela jikelele" (i-MBS ibizwa ngokuthi i-ABS esobala). Kulula ukubunjwa nokucutshungulwa, ayinakho ukumelana namakhemikhali, futhi imikhiqizo kulula ukucwiliswa nge-electroplated.
2. Ukusetshenziswa kwe-ABS
Izixhumi zephampu, amabhere, izibambo, amapayipi, amakesi kagesi, izingxenye zomkhiqizo we-elekthronikhi, amathoyizi, amakesi ewashi, amakesi amathuluzi, amakesi ethangi lamanzi, isitoreji esibandayo kanye namakesi angaphakathi esiqandisi.
3. Izici zenqubo ye-ABS
(1) I-ABS ine-hygroscopicity ephezulu kanye nokumelana nokushisa okungekuhle. Kumele yomiswe ngokuphelele futhi ishiswe ngaphambi kokuba ibunjwe futhi icutshungulwe ukuze kulawulwe umswakama ongaphansi kuka-0.03%.
(2) I-viscosity encibilikayo ye-ABS resin ayizweli kangako izinga lokushisa (ihlukile kwamanye ama-amorphous resins). Nakuba izinga lokushisa lomjovo le-ABS liphakeme kancane kunele-PS, alinalo izinga lokushisa elixegayo elikhuphukayo njenge-PS, futhi ukufudumeza okungaboni akukwazi ukusetshenziswa. Ukunciphisa i-viscosity yayo, ungakhuphula isivinini sesikulufu noma ukhuphule ingcindezi yomjovo/isivinini ukuze uthuthukise uketshezi lwaso. Izinga lokushisa elijwayelekile lokucubungula ngu-190 ~ 235 ℃.
(3) I-viscosity encibilikayo ye-ABS imaphakathi, iphakeme kunaleyo ye-PS, HIPS, kanye ne-AS, futhi uketshezi kwayo kubi kakhulu, ngakho ukucindezela komjovo okuphezulu kuyadingeka.
(4) I-ABS inomphumela omuhle onesivinini somjovo esiphakathi nendawo ukuya kwesimaphakathi (ngaphandle uma izimo eziyinkimbinkimbi nezingxenye ezincane zidinga isivinini somjovo esiphezulu), umlomo wombhobho womkhiqizo uthambekele ezimpawu zomoya.
(5) Izinga lokushisa lokubumba i-ABS liphezulu uma kuqhathaniswa, futhi izinga lokushisa layo lesikhunta ngokuvamile lilungiswa phakathi kuka-45 no-80°C. Lapho ukhiqiza imikhiqizo emikhulu, izinga lokushisa lesikhunta esingaguquki (isikhunta sangaphambili) ngokuvamile siba ngu-5°C ngaphezu kwalelo lesikhunta esinyakazayo (isikhunta sangemuva).
(6) I-ABS akufanele ihlale emgqonyeni wezinga lokushisa eliphezulu isikhathi eside (kufanele ibe ngaphansi kwamaminithi angu-30), ngaphandle kwalokho izobola kalula futhi ibe phuzi.
- PMMA
1. Ukusebenza kwe-PMMA
I-PMMA iyi-polymer e-amorphous, evame ukubizwa ngokuthi i-plexiglass (i-sub-acrylic), enobuningi obungaba ngu-1.18g/cm3. Inokucaca okuhle kakhulu kanye nokudluliswa kokukhanya okungama-92%. Kuyinto enhle optical material; inokumelana nokushisa okuhle (ukumelana nokushisa). Izinga lokushisa le-deformation lingu-98°C). Umkhiqizo wayo unamandla aphakathi nendawo nobulukhuni bobuso obuphansi. Iklwejwa kalula yizinto eziqinile bese ishiya imikhondo. Uma kuqhathaniswa ne-PS, akulula ukuba brittle.
2. Ukusetshenziswa kwe-PMMA
Amalensi wezinsimbi, imikhiqizo yokubona, izinto zikagesi, amathuluzi ezokwelapha, amamodeli abonisa ngale, imihlobiso, amalensi elanga, amazinyo okufakelwa, amabhodi okukhangisa, amaphaneli wewashi, izibani zangemuva zemoto, ama-windshields, njll.
3. Izici zenqubo ye-PMMA
Izidingo zokucubungula ze-PMMA ziqinile. Izwela kakhulu kumswakama kanye nezinga lokushisa. Kumele yomiswe ngokuphelele ngaphambi kokucubungula. I-viscosity yokuncibilika kwayo iphakeme kakhulu, ngakho idinga ukubunjwa ezingeni lokushisa eliphezulu (219~240℃) kanye nokucindezela. Izinga lokushisa isikhunta liphakathi 65 ~ 80 ℃ kungcono. Ukuzinza okushisayo kwe-PMMA akukuhle kakhulu. Izokwehliswa izinga lokushisa eliphezulu noma ukuhlala ezingeni lokushisa eliphezulu isikhathi eside kakhulu. Isivinini sesikulufu akufanele sibe phezulu kakhulu (cishe u-60rpm), njengoba kulula ukwenzeka ezingxenyeni eziwugqinsi ze-PMMA. Into "engenalutho" idinga amasango amakhulu kanye "nokushisa okuphezulu kwempahla, izinga lokushisa eliphakeme lesikhunta, isivinini esisheshayo" ukuze sicutshungulwe.
4. Iyini i-acrylic (PMMA)?
I-Acrylic (PMMA) iyipulasitiki ecacile, eqinile evame ukusetshenziswa esikhundleni sengilazi emikhiqizweni efana namafasitela angashayi, izimpawu ezikhanyisiwe, ukukhanya kwesibhakabhaka nama-canopies ezindiza. I-PMMA ingeyomndeni obalulekile wama-acrylic resins. Igama lekhemikhali le-acrylic yi-polymethyl methacrylate (PMMA), okuyiresin yokwenziwa eyenziwe i-polymerized kusuka ku-methyl methacrylate.
I-Polymethylmethacrylate (PMMA) yaziwa nangokuthi i-acrylic, ingilazi ye-acrylic, futhi itholakala ngaphansi kwamagama okuhweba nemikhiqizo efana ne-Crylux, i-Plexiglas, i-Acrylite, i-Perclax, i-Astariglas, i-Lucite, ne-Perspex, phakathi kwabanye. I-Polymethylmethacrylate (PMMA) ivamise ukusetshenziswa efomini leshidi njengendlela engasindi noma engashayiki esikhundleni sengilazi. I-PMMA iphinde isetshenziswe njenge-casting resin, uyinki, kanye nokugqoka. I-PMMA iyingxenye yeqembu lezinto zepulasitiki zobunjiniyela.
5. Yenziwa kanjani i-acrylic?
I-polymethyl methacrylate yenziwa nge-polymerization njengoba ingenye yama-polymers okwenziwa. Okokuqala, i-methyl methacrylate ifakwa esikhunjeni futhi i-catalyst yengezwe ukusheshisa inqubo. Ngenxa yale nqubo yokwenza i-polymerization, i-PMMA ingalolongwa ibe amafomu ahlukahlukene njengamashidi, ama-resin, amabhlogo, kanye nobuhlalu. Iglue ye-Acrylic ingasiza futhi ukuthambisa izingcezu ze-PMMA futhi zihlanganiswe ndawonye.
I-PMMA kulula ukuyilawula ngezindlela ezahlukene. Ingahlanganiswa nezinye izinto ukusiza ukuthuthukisa izakhiwo zayo. Nge-thermoforming, iyavumelana nezimo lapho ishisa futhi iqina lapho ipholile. Ingalinganiswa ngokufanele kusetshenziswa isaha noma i-laser cutting. Uma iphucuziwe, ungasusa imihuzuko phezulu futhi usize ukugcina ubuqotho bayo.
6. Yiziphi izinhlobo ezahlukene zama-acrylic?
Izinhlobo ezimbili eziyinhloko zepulasitiki ye-acrylic ziyi-acrylic ekhonjiwe kanye ne-acrylic extruded. I-Cast acrylic ibiza kakhulu ukuyikhiqiza kodwa inamandla angcono, ukuqina, ukucaca, ububanzi be-thermoforming nokuzinza kune-acrylic extruded. I-Cast acrylic inikeza ukumelana nokuqina kwamakhemikhali okuhle kakhulu, futhi kulula ukuyifaka umbala nokuma phakathi nenqubo yokukhiqiza. I-Acrylic ye-Cast iyatholakala futhi ezinhlobonhlobo zobukhulu. I-acrylic enwetshiwe iyonga kakhulu kune-acrylic ekhonjiwe futhi inikeza i-acrylic engaguquki, esebenzayo kune-cast acrylic (ngezindleko zamandla ancishisiwe). I-acrylic enwetshiwe kulula ukuyicubungula kanye nomshini, okwenza kube enye indlela enhle kakhulu yamashidi engilazi ekusetshenzisweni.
7. Kungani i-acrylic isetshenziswa kakhulu?
I-Acrylic ivame ukusetshenziswa ngoba inezimfanelo ezifanayo ezizuzisayo njengengilazi, kodwa ngaphandle kwezinkinga ze-brittleness. Ingilazi ye-Acrylic inezakhiwo ezinhle kakhulu ze-optical futhi inenkomba ye-refractive efanayo njengengilazi esimweni esiqinile. Ngenxa yezakhiwo zayo ezingashayi, abaklami bangasebenzisa ama-acrylics ezindaweni lapho ingilazi ingaba yingozi kakhulu noma ingahluleka khona (njengama-submarine periscopes, amafasitela ezindiza, njll.). Isibonelo, uhlobo oluvame kakhulu lwengilazi ye-bulletproof yingxenye ye-acrylic engu-1/4-inch-thick, ebizwa ngokuthi i-acrylic eqinile. I-Acrylic iphinde yenza kahle ekubunjweni komjovo futhi ingakhiwa cishe noma yikuphi ukuma okungadalwa umenzi wesikhunta. Amandla engilazi ye-acrylic ehlangene nokulula kwayo ukucubungula kanye nomshini kuyenza ibe yinto enhle kakhulu, echaza ukuthi kungani isetshenziswa kakhulu ezimbonini zabathengi nezohwebo.
Isikhathi sokuthumela: Dec-13-2023