- AS
1. Ukusebenza kwe-AS
I-AS yi-propylene-styrene copolymer, ekwabizwa ngokuba yi-SAN, enobunzima obumalunga ne-1.07g/cm3. Ayinangxaki yokuqhekeka koxinzelelo lwangaphakathi. Inokucaca okuphezulu, ubushushu obuthambileyo obuphezulu kunye namandla okubetha kune-PS, kwaye ayinyamezeli ukudinwa.
2. Ukusetyenziswa kwe-AS
Iitreyi, iikomityi, izitya zetafile, iindawo zefriji, amaqhosha, izixhobo zokukhanyisa, imihombiso, izipili zezixhobo, iibhokisi zokupakisha, izinto zokubhala, izikhanyisi zegesi, iziphatho zamazinyo, njl.
3. Iimeko zokucubungula ze-AS
Ubushushu bokucubungula be-AS ngokubanzi buyi-210~250℃. Le nto kulula ukuyifunxa umswakama kwaye kufuneka yomiswe ixesha elingaphezu kweyure enye ngaphambi kokuba icutshungulwe. Ukufuma kwayo kubi kancinci kune-PS, ngoko ke uxinzelelo lwe-injection nalo luphezulu kancinci, kwaye ubushushu bokubumba bulawulwa kwi-45~75℃ bungcono.
- I-ABS
1. Ukusebenza kwe-ABS
I-ABS yi-acrylonitrile-butadiene-styrene terpolymer. Yi-polymer e-amorphous enobunzima obuyi-1.05g/cm3. Inamandla aphezulu oomatshini kunye neempawu ezilungileyo ezibanzi "ezithe nkqo, ezinzima nezintsimbi". I-ABS yiplastiki yobunjineli esetyenziswa kakhulu eneentlobo ngeentlobo kunye nokusetyenziswa okubanzi. Ikwabizwa ngokuba yi-"general engineering plastic" (i-MBS ibizwa ngokuba yi-transparent ABS). Kulula ukuyibumba nokuyicubungula, ayinayo i-chemical resistance embi, kwaye iimveliso kulula ukuzicola nge-electroplated.
2. Ukusetyenziswa kwe-ABS
Ii-impellers zepompo, iibheringi, iziphatho, iipayipi, iikhava zezixhobo zombane, iindawo zemveliso ze-elektroniki, iithoyi, iikhava zewotshi, iikhava zezixhobo, iikhava zetanki yamanzi, indawo yokugcina ebandayo kunye neekhava zangaphakathi zefriji.
3. Iimpawu zenkqubo ye-ABS
(1) I-ABS ine-hygroscopicity ephezulu kwaye ayimelani nobushushu. Kufuneka yomiswe ngokupheleleyo kwaye ifudunyezwe ngaphambi kokuba ibunjwe kwaye isetyenzwe ukulawula umxholo wokufuma ongaphantsi kwe-0.03%.
(2) I-melt viscosity ye-ABS resin ayichaphazeleki kakhulu kubushushu (yahlukile kwezinye ii-amorphous resins). Nangona ubushushu be-injection ye-ABS buphezulu kancinci kunobo be-PS, ayinalo uhla lokunyuka kobushushu olukhululekileyo njenge-PS, kwaye ukufudumeza okungabonakaliyo akunakusetyenziswa. Ukunciphisa i-viscosity yayo, unganyusa isantya sesikrufu okanye unyuse uxinzelelo/isantya se-injection ukuphucula ukugeleza kwayo. Ubushushu obuqhelekileyo bokucubungula yi-190~235℃.
(3) I-ABS enyibilikayo iphakathi, iphezulu kunePS, HIPS, kunye neAS, kwaye ukugeleza kwayo kuphantsi, ngoko ke kufuneka uxinzelelo oluphezulu lwe-injection.
(4) I-ABS inefuthe elihle kwisantya esiphakathi ukuya kwesiphakathi sokujova (ngaphandle kokuba iimilo ezintsonkothileyo kunye neendawo ezincinci zifuna isantya esiphezulu sokujova), umlomo wemveliso unokuba neemphawu zomoya.
(5) Ubushushu bokubumba i-ABS buphezulu kakhulu, kwaye ubushushu bayo bokubumba buqhele ukulungiswa phakathi kwama-45 nama-80°C. Xa kuveliswa iimveliso ezinkulu, ubushushu bokubumba okusisigxina (ukubumba kwangaphambili) ngokubanzi bumalunga nama-5°C ngaphezu kobo bokubumba okushukumayo (ukubumba okungasemva).
(6) I-ABS akufuneki ihlale kwibhareli yobushushu obuphezulu ixesha elide kakhulu (kufuneka ibe ngaphantsi kwemizuzu engama-30), kungenjalo iya kubola lula kwaye ibe tyheli.
- I-PMMA
1. Ukusebenza kwe-PMMA
I-PMMA yi-polymer engenasimo, eyaziwa ngokuba yi-plexiglass (sub-acrylic), enobunzima obumalunga ne-1.18g/cm3. Inokucaca okugqwesileyo kunye nokuhanjiswa kokukhanya kwe-92%. Yinto efanelekileyo yokukhanya; inokumelana okuhle nobushushu (ukumelana nobushushu). Ubushushu bokuguquguquka yi-98°C). Imveliso yayo inamandla aphakathi oomatshini kunye nobunzima obuphantsi bomphezulu. Ikrwelwa lula zizinto eziqinileyo kwaye ishiya imikhondo. Xa ithelekiswa ne-PS, akulula ukuba buthathaka.
2. Ukusetyenziswa kwe-PMMA
Iilensi zezixhobo, iimveliso ze-optical, izixhobo zombane, izixhobo zonyango, iimodeli ezibonakalayo, imihombiso, iilensi zelanga, amazinyo okufakelwa, iibhodi zentengiso, iiphaneli zewotshi, izibane zangasemva zeemoto, iifestile zemoto, njl.
3. Iimpawu zenkqubo ye-PMMA
Iimfuneko zokucubungula i-PMMA zingqongqo. Ibuthathaka kakhulu kumswakama kunye nobushushu. Kufuneka yomiswe ngokupheleleyo ngaphambi kokuba icutshungulwe. I-viscosity yayo yokunyibilika iphezulu, ngoko ke kufuneka ibunjwe kubushushu obuphezulu (219 ~ 240℃) kwaye uxinzelelo. Ubushushu bokubumba buphakathi kwama-65 ~ 80℃ bungcono. Uzinzo lobushushu be-PMMA alulunganga kakhulu. Iya konakaliswa bubushushu obuphezulu okanye ukuhlala kubushushu obuphezulu ixesha elide. Isantya sesikrufu akufuneki sibe phezulu kakhulu (malunga nama-60rpm), njengoko kulula ukwenzeka kwiindawo ezityebileyo ze-PMMA. Imeko "engenanto" ifuna amasango amakhulu kunye neemeko zokujova "ubushushu obuphezulu bezinto, ubushushu obuphezulu bokubumba, isantya esicothayo" ukuze icutshungulwe.
4. Yintoni i-acrylic (PMMA)?
I-Acrylic (PMMA) yiplastiki ecacileyo neqinileyo edla ngokusetyenziswa endaweni yeglasi kwiimveliso ezifana neefestile ezingaqhekekiyo, iimpawu ezikhanyisiweyo, ii-skylights kunye nee-canopies zeenqwelo-moya. I-PMMA iyinxalenye yosapho olubalulekileyo lwee-acrylic resins. Igama lekhemikhali le-acrylic yi-polymethyl methacrylate (PMMA), eyi-synthetic resin eyenziwe nge-polymer evela kwi-methyl methacrylate.
I-Polymethylmethacrylate (PMMA) ikwabizwa ngokuba yi-acrylic, i-acrylic glass, kwaye ifumaneka phantsi kwamagama orhwebo kunye neempawu ezifana neCrylux, Plexiglas, Acrylite, Perclax, Astariglas, Lucite, kunye nePerspex, phakathi kwezinye. I-Polymethylmethacrylate (PMMA) idla ngokusetyenziswa kwifomu yeshiti njengendlela elula okanye engaqhekekiyo endaweni yeglasi. I-PMMA ikwasetyenziswa njenge-casting resin, i-inki, kunye ne-coating. I-PMMA yinxalenye yeqela lezinto zeplastiki zobunjineli.
5. Yenziwa njani i-acrylic?
I-Polymethyl methacrylate yenziwa nge-polymerization njengoko iyenye yee-polymers zokwenziwa. Okokuqala, i-methyl methacrylate ifakwa kwi-mold kwaye kongezwa i-catalyst ukukhawulezisa inkqubo. Ngenxa yale nkqubo ye-polymerization, i-PMMA inokubunjwa ibe ziindlela ezahlukeneyo ezifana namaphepha, ii-resins, iibhloko, kunye nee-beads. Iglu ye-Acrylic inokunceda ukuthambisa iziqwenga ze-PMMA kwaye izidibanise kunye.
I-PMMA kulula ukuyisebenzisa ngeendlela ezahlukeneyo. Ingadityaniswa nezinye izinto ukunceda ukuphucula iimpawu zayo. Nge-thermoforming, iyaguquguquka xa ishushu kwaye iqine xa ipholile. Ingalinganiswa ngokufanelekileyo kusetyenziswa isarha okanye ukusika nge-laser. Ukuba ipholishiwe, ungasusa imikrwelo kumphezulu kwaye uncede ukugcina ukuthembeka kwayo.
6. Ziziphi iintlobo ezahlukeneyo ze-acrylic?
Iintlobo ezimbini eziphambili zeplastiki ye-acrylic yi-acrylic ephothiweyo kunye ne-acrylic ephothiweyo. I-acrylic ephothiweyo ibiza kakhulu ukuyivelisa kodwa inamandla angcono, ihlala ixesha elide, icacile, i-thermoforming range kunye nozinzo kune-acrylic ephothiweyo. I-acrylic ephothiweyo inika ukumelana okuhle kweekhemikhali kunye nokuqina, kwaye kulula ukuyipenda kunye nokuyila ngexesha lenkqubo yokwenziwa. I-acrylic ephothiweyo ikwafumaneka kwiindidi ezahlukeneyo zobukhulu. I-acrylic ephothiweyo ingabizi kakhulu kune-acrylic ephothiweyo kwaye inika i-acrylic ehambelanayo, esebenza ngakumbi kune-acrylic ephothiweyo (ngeendleko zamandla ancitshisiweyo). I-acrylic ephothiweyo kulula ukuyicubungula kwaye iyenza ibe yindlela engcono kakhulu endaweni yamaphepha eglasi kwiindlela zokusebenza.
7. Kutheni i-acrylic isetyenziswa kakhulu?
I-Acrylic idla ngokusetyenziswa kuba ineempawu ezifanayo neziluncedo njengeglasi, kodwa ayinazo iingxaki zokuphuka. Iglasi ye-Acrylic ineempawu ezintle zokukhanya kwaye ine-refractive index efanayo neglasi kwimeko eqinileyo. Ngenxa yeempawu zayo ezingaphukiyo, abayili banokusebenzisa ii-acrylics kwiindawo apho iglasi ibinokuba yingozi kakhulu okanye ingaphumeleli khona (ezifana ne-submarine periscopes, iifestile zeenqwelo-moya, njl.njl.). Umzekelo, uhlobo oluqhelekileyo lweglasi engangenisi bullet yi-acrylic enobukhulu obuyi-1/4 intshi, ebizwa ngokuba yi-solid acrylic. I-Acrylic ikwasebenza kakuhle ekubumbeni ngenaliti kwaye inokwenziwa phantse kuyo nayiphi na imilo enokwenziwa ngumenzi we-mold. Amandla eglasi ye-acrylic kunye nokulula kwayo kokuyicubungula nokwenza i-machining kuyenza ibe yinto egqwesileyo, nto leyo echaza isizathu sokuba isetyenziswa kakhulu kumashishini abathengi kunye namashishini.
Ixesha lokuthumela: Disemba-13-2023
