Tshuab extrusion: lub teeb kis tau, cov khoom thiab daim ntawv thov ntawm cov polymers pob tshab

Txij li cov fwj mis nyuj, mus rau cov iav tsom iav, mus rau TV lossis xov tooj ntawm tes …… daim ntawv teev cov ntawv thov rau cov yas pob tshab yeej tsis muaj qhov kawg. Niaj hnub no, peb nyob ib puag ncig los ntawm ntau hom yas pob tshab lossis cov khoom siv hloov kho pob tshab uas ua rau cov khoom zoo nkauj dua thiab yooj yim nqa dua li cov iav ib txwm muaj.
Tam sim no, ntau lub tuam txhab tsim khoom siv qhov zoo thiab xim sib xws ntawm cov khoom siv yas pob tshab rau ntau yam kev siv:
1. tsim cov khoom uas tsis hnyav, ruaj khov thiab tsis tawg;
2. Txo cov nqi tsim khoom;
3. kev tsim cov qauv geometries nyuaj thiab cov khoom sib txawv;
4. Ua tiav qhov pom kev xa tawm thiab / lossis qhov ntsuas qhov muag pom kev sib piv rau cov iav
Thiab yog li ntawd nyob rau ...

Qee qhov chaw siv nrov uas tau txais txiaj ntsig los ntawm cov txiaj ntsig saum toj no yog:

1. Ntim khoom (khoom noj, tshuaj pleev ib ce ……)
2. Cov khoom siv rau cov neeg siv khoom (cov kaus poom zaub mov, cov khoom khaws cia cov ntaub ntawv, cov iav tsom iav ……)
3. Cov iav vaj tse (cov thoob dej yug ntses, cov chaw tiv thaiv kev nyab xeeb ……)
4. Cov khoom siv tsheb thiab hluav taws xob (LED, lub hau teeb taub hau ……)
5. Kev Kho Mob (cov koob txhaj tshuaj ……)
6. Zaj duab xis ua liaj ua teb
Txawm li cas los xij, nws tsim nyog sau tseg tias txawm hais tias muaj ntau yam kev siv, tsuas yog ob peb lub polymers ua tau raws li cov lus qhia ntawm cov khoom siv uas xav tau.
Cia peb los saib cov khoom yas "ci ntsa iab" no thiab saib cov khoom thiab cov ntawv thov nrov ntawm qee cov polymers pob tshab (PC, PMMA, PET, SMMA, COC, thiab lwm yam)!
Vim yog qhov chaw tsawg, PS/SBC/ASA/MBS/PCTA+PCTG/PMP (polymethylpentene) thiab lwm cov polymers pob tshab tshiab hauv tsab xov xwm no yuav tsis rov ua dua.

Cov tshuaj polycarbonate (PC)
Cov tshuaj polycarbonate (PC)yog ib qho thermoplastic polymer uas ruaj khov, tsis muaj zog thiab pob tshab nrog kev sib xyaw ua ke ntawm lub zog cuam tshuam siab, ruaj khov, thiab cov khoom siv kho tshuab zoo. Nws kis tau ntau dua 90% ntawm lub teeb thiab thaiv UV hluav taws xob, thiab muab 100% kev tiv thaiv los ntawm lub hnub lub teeb UV.

Polycarbonate daim ntawv / yeeb nkab extruder tshuabsiv rau ntau yam kev siv txhua hnub:
Cov khoom siv hluav taws xob thiab khoom siv hluav taws xob (teeb LED, cov khoom sib txuas, xov tooj ntawm tes ……)
Tsheb (lub teeb taub hau bezels, qhov rooj kov, radiator grilles thiab sab hauv lens)
Kev Ua Liaj Ua Teb (cov ntaub ntawv npog tsev cog khoom)
Cov khoom siv rau cov neeg siv khoom (tsom iav, khoom siv hauv tsev, khoom noj khoom haus ......)
Kev Kho Mob (cov cuab yeej phais, cov khoom siv ……)
Cov ntawv ntshiab ua los ntawm PC muaj zog dua li cov iav tuab tib yam 200 npaug hauv kev sim cuam tshuam thiab yooj yim txiav.
Pob tshab nylon (PA TR)
Los ntawm kev hloov hom diamine, diacid lossis amino acid, cov nylon ntau yam uas muaj cov khoom sib txawv ntawm lub cev tuaj yeem tau txais, suav nrog cov nylon dav dav, cov nylon ntev carbon, cov nylon tiv taus kub siab, cov nylon pob tshab thiab cov nylon elastomer. Cov nylon pob tshab yog cov nylon amorphous lossis microcrystalline thermoplastic nrog lub teeb xa mus txog 90%, ze li PMMA.
Vim tias nylon pob tshab muaj kev tiv thaiv zoo dua rau roj, xeb, puas thiab khawb dua li lwm cov yas pob tshab, nws yog dav siv hauv tsheb, hluav taws xob thiab hluav taws xob, tshuab, kho qhov muag, kis las thiab lwm yam teb.
Acrylic PMMA
PMMA yog ib yam khoom siv thermoplastic uas ruaj khov thiab pob tshab uas siv dav dav ua lwm txoj hauv kev "tsis tawg" rau iav. Cov polymer no muaj ntau yam zoo dua li lwm cov yas pob tshab (PC, PS), xws li:

Kev tiv thaiv UV thiab huab cua siab.
Nrog txog li 92% lub teeb kis tau thiab cov khoom siv kho qhov muag, cov kev xaiv xim tsis txwv.
Cov txiaj ntsig no ua rau PMMA daim ntawv Extruder tsim nyog rau kev tsim vaj tsev thiab kev tsim kho kom tsim cov tsev cog khoom, cov chaw marine; lub qhov rais tsheb, lub teeb ntxoov ntxoo, teeb, cov khoom siv hluav taws xob tso saib, cov rooj tog tsim qauv, thiab lwm yam.
Polyethylene terephthalate (PET)
PET yog ib qho thermoplastic polymer pob tshab uas muaj ntau yam uas nws tus cwj pwm los ntawm nws txoj kev sib xyaw ua ke zoo heev ntawm cov khoom siv kho tshuab, thermal, tshuaj lom neeg thiab qhov ntev ruaj khov. PET yuav zoo li tsis pom tseeb, dawb thiab pob tshab, nyob ntawm nws cov qauv crystalline thiab amorphous.
PET qhov xav tau (pom tseeb, lub teeb yuag, lub zog siab, kev tawv, kev tiv thaiv tshuaj lom neeg siab, cov khoom thaiv thiab tus nqi qis) ua rau nws yog cov khoom siv xaiv rau:
Lub raj mis dej
Cov thawv dej qab zib carbonated
Fibers
Zaj duab xis ua yeeb yam

PET nyiam dua polycarbonate (PC) vim tias tus nqi qis dua, zoo nkauj dua thiab tuav tau zoo dua.
Amorphous copolyester (PETG)
Cov amorphous copolyesters xws li PETG muaj ntau yam siv tau thiab siv tau rau ntau yam kev siv. Amorphous copolyesters muab kev pom tseeb zoo heev thiab kev tawv nrog kev tiv taus kub thiab tshuaj lom neeg zoo heev.
PETG siv tau los hloov PC, PMMA thiab PC/polyester nrog me me lossis tsis muaj kev hloov pauv.

Polyvinyl tshuaj dawb (PVC)
PVC yog ib hom thermoplastic uas tsis muaj duab thiab pob tshab zoo heev. Cov ntawv PVC ntshiab sib xyaw ua ke cov khoom siv kho tshuab zoo heev thiab lub zog cuam tshuam nrog dej-pom tseeb thiab tshuaj lom neeg thiab hluav taws kub zoo heev.
Tsis tas li ntawd xwb, cov kav dej PVC uas pom tseeb tau tsim tshwj xeeb los thaiv cov teeb meem UV. Cov kav dej no feem ntau pom zoo rau kev siv sab nraum zoov uas raug tshav ntuj thiab xav tau pob tshab.

Cov khoom siv kho qhov muag ntawm cov khoom PVC pob tshab muaj xws li kev sib kis lub teeb siab mus rau qhov pom tseeb thiab tiv thaiv qhov muag tsis pom kev mus rau lub zog cuam tshuam siab, ua rau lawv tsim nyog rau kev siv sab nraud. Cov ntawv thov tseem ceeb rau cov ntawv PVC pob tshab, cov kav dej thiab cov yeeb yaj kiab pob tshab extrusion kab suav nrog:
Kev tsim vaj tsev - lub teeb, iav kev nyab xeeb, tsev cog khoom ……
Kev Ntim Khoom - ntim cov blister, zaj duab xis lo, ntim pob tshab ……
Kev Kho Mob - hnab, raj, drippers, connectors, li qub ……
Liquid Silicone Roj Hmab (LSR)
Cov roj hmab silicone ua kua yog cov khoom siv thermosetting elastomer uas tsis muaj viscosity, pob tshab nrog:
Kev pom tseeb zoo heev (94% transmittance)
Durability (ua haujlwm kub txog li 150 ° C)
Kev ua tau zoo heev
Tsim Kev ywj pheej

Nws yog ib yam khoom siv uas tsis hnyav thiab tau hloov iav thiab lwm yam thermoplastics hauv ntau yam kev siv xws li lub teeb pom kev zoo LED muaj zog, khoom siv hluav taws xob, teeb pom kev hauv tsheb, khoom siv rau cov neeg siv khoom, kev kho mob, thiab lwm yam. Qhov twg qhov pom tseeb, tiv taus cua sov/UV thiab ua tau ntev yog qhov tseem ceeb.
Cyclic Olefin Copolymer (COC)
Cyclic Olefin Copolymer (COC) yog ib qho amorphous, pob tshab thermoplastic tsim los ntawm cov saw hlau copolymerization ntawm cyclic monomers nrog ethane. Nws yog ib chav kawm tshiab ntawm cov polymers piv rau cov khoom lag luam xws li polypropylene thiab polyethylene, thiab paub txog nws qhov pom tseeb zoo heev, cov khoom siv kho tshuab zoo, thiab tiv taus dej noo.

COC cov khoom siv kho qhov muag zoo heev ua rau nws zoo tagnrho rau cov yeeb yaj kiab ntim khoom noj, cov ntaub ntawv kho qhov muag, cov iav siab, cov yeeb yaj kiab kho qhov muag, thiab ntau ntxiv. Tsis tas li ntawd, cyclic olefin copolymers tiv taus cov dej noo, cov kuab tshuaj, thiab kev ua kom tsis muaj menyuam, ua rau lawv muaj txiaj ntsig zoo rau kev siv kho mob thiab kev tshawb fawb txog lub neej xws li cov ntawv ntim khoom blister, cov tais kho mob, thiab ntau ntxiv.
Polyethylene (PE)
Polyethylene yog ib hom thermoplastic uas ruaj khov heev uas siv dav hauv ntau lub khw (ntim khoom, tsheb, hluav taws xob, thiab lwm yam) los tsim cov yeeb yaj kiab, cov kav dej, cov khoom yas, cov laminates, thiab ntau ntxiv. Nws yog cov yas uas tsim tawm ntau tshaj plaws hauv ntiaj teb thiab koj siv nws yuav luag txhua hnub.

LDPE yas ntau lawm kab: LDPE yog saj zawg zog, tawv thiab pob tshab, thiab yog dav siv rau hauv cov hnab yas, cov yeeb yaj kiab pob tshab, cov khoom siv hauv chaw kuaj mob thiab lwm yam teb.

Polypropylene pob tshab (PP)
Polypropylene yog ib qho resin zoo heev nrog cov khoom zoo, kev siv nyiaj tsim nyog thiab kev siv rov qab, tab sis vim nws cov xwm txheej crystalline, nws nyuaj rau tau txais cov ntawv PP pob tshab. Txawm li cas los xij, niaj hnub no, ua tsaug rau cov khoom siv tshiab zoo heev (tseem hu ua clarifiers), kev nce qib tseem ceeb tau ua rau polypropylene pob tshab (PP) vim tias cov polymers no muaj kev ywj pheej tsim qauv, kev ua haujlwm yooj yim dua, cov xim zoo dua / kho kom zoo nkauj, thiab kev txuag nqi los ntawm kev hnyav sib dua.

Ntxiv mus, kev sib xyaw ua ke ntawm kev tua hluav taws sai thiab kev kho cua sov kom zoo tuaj yeem txhim kho qhov pob tshab ntawm cov ntawv polypropylene extruded. Lwm qhov zoo uas ua rau PP pob tshab yog lwm txoj hauv kev zoo rau cov ntaub ntawv pob tshab kim dua xws li iav thiab cov yas pob tshab (PS, PC, PETG) suav nrog:
Kev sib zog zoo / kev cuam tshuam sib npaug;
Kev tiv thaiv dej noo / dej noo zoo
Fluorinated Ethylene Propylene (FEP)
Fluorinated ethylene propylene (FEP) yog ib qho copolymer ntawm hexafluoropropylene thiab tetrafluoroethylene. Cov polymer no xa ntau feem pua ​​​​​​ntawm ultraviolet thiab pom lub teeb. FEP hauv daim ntawv zaj duab xis muaj lub hnub ci transmittance ntawm kwv yees li 96%. Zaj duab xis FEP xa ntau ultraviolet, pom thiab infrared hluav taws xob dua li iav ib txwm.
Styrene methyl methacrylate (SMMA)
SMMA lossis styrene methyl methacrylate (SMMA) yog ib qho styrene-acrylic acid copolymer uas pom tseeb heev nrog rau qhov chaw ci ntsa iab zoo heev. Nws muab cov txiaj ntsig zoo ntawm kev ua tiav zoo thiab tus nqi zoo ntawm styrene polymers nrog rau qhov ci ntsa iab thiab meej. Lwm cov txiaj ntsig ntawm SMMA yog:
Kev ruaj khov thermal zoo heev;
Zoo dua cawv tsis kam dua li acrylic;
Cov khoom siv kho tshuab zoo dua li GPPS;
Tsis kam khawb;
FDA daim ntawv tsis txaus siab.

Piv rau PMMA, PC thiab PET, SMMA pheej yig dua thiab muaj qhov zoo sib xws.
SMMA yog qhov tsim nyog rau cov ntawv thov uas xav tau cov khoom muaj zog, tawv, dej-pob tshab, xws li cov khoom siv hauv tsev, tsom iav, khob iav, ntim khoom kom zoo nkauj, cov khoom siv kho mob, cov khoom siv tu cev tus kheej, thiab lwm yam.
Polystyrene (Lub Hom Phiaj Dav Dav - GPPS)
Polystyrene dav dav (GPPS), tseem hu ua crystal clear polystyrene, yog cov polymer pob tshab nrog cov khoom hauv qab no:
Siab tawv;
Kev ruaj khov zoo;
Lub ntiajteb txawj nqus qis, thiab tiv taus cua sov zoo heev
Hluav taws xob rwb thaiv tsev zoo

Vim nws tsis muaj qhov tsis zoo, nws muaj qhov zoo dua li lwm cov polymers hais txog kev pom tseeb, tus nqi qis, thiab yooj yim ua. qee qhov kev siv rau GPPS suav nrog cov khoom ua si, cov thawv CD, cov khoom dai khaub ncaws, cov thawv zaub hauv lub tub yees, cov vaj huam sib luag da dej, cov khoom siv IT, cov thawv hniav nyiaj hniav kub ntshiab, cov txee thiab cov tub rau khoom hauv lub tub yees, thiab cov khob yas. Nws kuj tseem siv rau hauv kev tsim cov khoom siv kho mob pov tseg xws li cov raj kuaj, cov khoom siv kuaj mob, cov khoom kuaj mob, cov tais petri, thiab lwm yam.
MABS (pob tshab ABS)
ABS yog ib qho thermoplastic engineering uas tiv taus kev cuam tshuam uas muaj peb lub monomers: acrylonitrile, butadiene, thiab styrene. Styrene-acrylonitrile copolymers muab kev ruaj khov, thaum butadiene muab kev tiv taus kev cuam tshuam.
Cov chaw tsim khoom ntxiv methyl methacrylate monomer rau hauv theem SAN kom tsim tau cov ABS resin pob tshab heev hu ua MABS (methyl methacrylate acrylonitrile butadiene styrene). MABS muaj cov khoom xws li:

Lub teeb transmittance siab;
Puab tsaig qis;
Xim sib xws thiab ruaj khov;
Cov yam ntxwv ntws zoo dua.
ABS ntshiab muaj kev tiv taus kev cuam tshuam zoo dua li polystyrene, SAN thiab PMMA, thiab muaj kev ua haujlwm zoo. MABS qib nrog cov yam ntxwv ntws zoo dua tuaj yeem siv ua lwm txoj hauv kev zoo rau polycarbonate (PC). ABS ntshiab yog siv rau hauv cov khoom siv rau cov neeg siv khoom, cov ntawv thov kho mob, cov khoom siv kis las, cov khoom siv kho mob, thiab lwm yam.