īƮ(Polycarbonate, PC)
īƮ(Polycarbonate, PC) 1956 Bayer翡 ó μ Ϲ A Ǵ ź꿡̴.Ͼöƽ ̸, Ư ϴ(尭 820 Kg/, ġ 900 cm/).
A ̱ ϸ, Ƽ ȴ.
acid
Phenol + Acetone ----> BisphenolA
A 1 źƿ 2 ϰ ˸ŷν Ʈƿ [Ti(OC4H9)4] ҷ Ͽ, ұϿ 200 ̻ Ų.
п Ű, ź ȸǾ īƮ ȴ. źƿ Butanol Phosgen ȴ. īƮ ռ A ٸ , A ַ Ѵ. īƮ 230, µ 120~140 ̸, ũ ϴ. ǰ 꿡 ϳ ī ϸ, źȭ, ڿ, ϳ, ſ ´. Ư ݼ ź ū Ư¡̴. ϰ ڿܼ 72ð ϰų, 150ɿ ߿ 26ְ, 170ɿ ߿ 8ְ ġϿ Ż , ȭ ʴ´.
μ A, ϰ ον ƿŬζ̵, Ҵ, ˸ŷν Ʈƿϸ, ̵ϻ̵, ƮƿϸŬζ̵ Ѵ. PC ν ܰɼ Ǵ Ͻ ȭչκ ź Ͻ ȭչ ȯ Ͻ ȭչ ڽ Ȥ ٸ Ͻ ȭչ ų, Ǵ ˸īƮ ȯ Ұ Ͽ Ͻ ȭչ Ͽ Ͻ ȭչ Ͻ ȭչ Ŭη ź꿡 4 ŷе Ը ǰ ִ PC ֺƮ ǰ ִ.
(1) ֺƮ
ֺƮ A Ͽ ȭīҰ Ѽ PC . ν Ǹ Ȥ Į Ǹ μ ȭƿ, Ŭηκ, Ϸ Ѵ. չ Ű ؼ Ʈƿƹΰ 3 ƹ Ǵ ϴ ͵ ְ պڷ ϱ t-ƿ ȴ.
Դٰ μ̵ ȭ ҷ ÷ϴ ͵ ִ. 20~30 µ . ȭī Ҿ ߿ -CCOCl ܱ⸦ ڷ Ӱ . ̰ Į ˽Ű鼭 ָ ʿ ڷ PC Ͽ Ŀ dope Ǵ Ի ȴ.
(2) ؿܰߵ
grade PC ־ ܸ⳪ ȭ ϱ Ȱ ǰ ִ. ܸδ ַ phenol p-tert-butylPhenol dz cumyl phenol ̱ ϸ(GE Plastics) polycarbonate ܸ Ϻϰ ϱ Ÿ PC ִ. UV ̱ halogen ܸ, ܸ ǰ ִ. ȭ ϱ ַ bisphenol ٲν ̷µ (i) bisphenol isopropylidene ũⰡ hydrocarbon ؼ ġȯϰų (ii)bisphenol phenol ring ſ methyl Ȥ ؼ⸦ ġȯ ġ Ϻ Ǵ ġȯϴ ִ.
PS, PMMA, SAN, SMA PC alloyingν ̰ ߴ õǰ ִ. ̷ alloy ߿ ־ ܼ ÷ phase 鿡 ɱ⸦ ϰų ٲν ִ. ̷ alloy ȭ δ tetramethyl bisphenol-A polycarbonate (TMPC), tetrabromo polycarbonate (TBPC), tetrachloro polycarhonate(TCPC) PC ǰ ִ. grade PC 뼺 ִ bischloral polycarbonate(BCPC)ε 밡 alloy ٷ BCPC ؾϴ ִ. δ ǰ 뼺 ϴ μ PC TBPC, TCPC ü ǰ ִ.
PC alloy ַ Ǵµ 뼺 (three phase) alloy ̷ ϸ ̷ halogen ϴ PC ü alloyingν ذ ִ. 80 ߹ݺ solvent casting ߵν 뼺 ִ ܻ PC/PMMA ְ Ǿ. 70ɷ ǿ castingϿ THFŸ ϴ hot casting̳ MDC ſ ڸ 쿩 antisolvent heptane ħŰ PC/PMMA alloy ¿ ܻ ̷ ڰ ȣۿ ſ (positive) ־ ȥս 뼺 ִ.
PC hexafluoro bisphenol-A polycarbonate(HFPC) ϰ PMMA alloy 350 ̻ и Ͼ ʴ´. 15% ̻ HFPC ü PMMA alloying ϸ , (HFPC ), ǰ scratch װ â, ڵ lamp Cover 뵵 ǰ ִ. CD gradeδ ַ ִ branched PC ַ Ǿ Դµ ̴ Ϲ linear PC µ ⼺ ̴. PC , ڹ迭 CDδ Ϻ ߴ. ̷ ذϱ PC-PS alloy ߵ ǰȭ ܰ迡 ִ.
PC PS alloy ̷ ϳ 뼺 ʴ. Ư, minor domain size CD Ǵ 庸 ũ ȣ Ͼ üδ Ұϴ. Domain size ۰ϱ PC ܸ ɱ⸦ ̰ PS b1ock copolymer ̸ PC Ȥ PS alloyingϴ ȴ. alloy Ӹ ƴ϶ PS ڹ迭 PC Ǿ ⼺ ÿ ذ ִ ̴.
(1) Glazing & Sheet
PC 250, acryl sheetٴ 30 ϰ UV / . Unblended PC, silicone coating, , pigmented, double- or twin- walled glazing sheet · б, Ƿ, , , ǹ ü â, , , ȣâ, 䱸Ǵ װ⳪ â, , DZ Panel ǰ ִ.
(2) ڵ ǰ
Unblended PC üӸ ƴ϶ ABS, polyester(PBT Ǵ PET), SMA, MPPO blending ڵ lighting reflector, headlamp, taillamp, signal lamp lighting System, ǰ ݼ, 䱸Ǵ ڵ , trim, globe box doors, steering column covers, spoiler, electrical/electronic components ǰ ִ. Ư, ڵ bumper μ GEP Xenoy(PC/PBT), Hoechst Celanese Vandal, Bayer Makroblend(PC/PET), Dow SABRE(PC/PET) ϰ ִ. PC/ABSδ Dow PULSE ڵ ܺ panel, cowl vent grille, wheel cover, mirror housing, exterior trim ǰ ִ.
(3) Alloys/Blends
PC , ȭоǰ ϱ ȭоǰ polyester Ư ABS alloy Ǵ blending Ѵ. PC/ABS ڵǰ, computer/繫 , , ܵ , ⱸ, , Ƿ ̸ Ŀ ǰ ִ.
PC/Polyester 䰡 ü Ǵ ϴ ̸ bumper ڵǰ, , ܵ , ⱸ, ǰ, ǰ ̰ ִ. Bumper style ȭ 䰡 ̴.
(4) ⱸ/
, , ݼ, 䱸Ǹ ûұ, Carpet shampooer ٴ ûҿ ⱸ, coffee maker, toaster, food processor, bowls ⱸ, housing handle, õ cover, door shelf ֿ ǰ, Ź â, air conditioning grille ϰ ̿ǰ ִ.
(5) Optical Disc
83 ʷ ǰȭ ̷ ְ ̰ ִ о߷μ audio CD PC, video CD PMMA . Ư, 䱸Ǵ ſ , Ź ̸, PC sputtering aluminum 뼺 ̿ǰ ִ.
(6) ⱸ
lens, housing, blow-molded globes, lens diffuser, stage lighting, airport runway marking, lighting ̿ȴ.
(7) ǰ
뵵 ȸ ̸ ϸ ݰ ƴ϶ Ҵ ô ߵ 䱸ȴ.
(8) /
Heavy duty plug receptacles, wall plate Connector, ȭ ݼ, UV , ȭ 䱸Ǵ network interface devices, switch box, connector, terminal block, relay cover, cable line ǰ ִ.
(9) Computer/繫
Unblended PC ϰ PC/ABS 䰡 ϰ ִ о߷μ ݼ, , , ȭ, ġ 䱸ȴ.
housing, cover, , ֺ, , ϱ Ǹ Ư, PC/ABS laptop notebook computer 淮ȭ ߾ thin-wall case ǰ ִ. о߿ MPPO, ABS, PS ϰ ִ.
(10) Ƿ/ǰⱸ
, high-energy radiation ethylene oxide ҵ Ư 䱸Ǵ о߷μ 뵵δ blood oxygenator, blood collective reservoir, blood separation device, b1ood collection device, ܰ , kidney analysis equipment centrifuge bowl, medical lab equipment ִ.
(11) Leisure/safety
ȣ helmet sports headgear, sunglass, ski goggle, gas mask, face shield ȣ뱸, snowmobile ǰ, boat propeller ȴ.
(12) Film
, printability 䱸ϸ extrusion̳ solution casting Ѵ. Sign, computer, 繫, ⱸ nameplate, ڵ , membrane switch 뵵.
(13) Ÿ
Ȱ lensμ PC ݿ ϸ UV allyl diglycol carbonate(ADC) ǰ ִ. ܿ flatware, baby bottle, pitcher ǰ, housing ǰ, âȣ frame, pallet/collapsible ó о߿ ̰ ִ.
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