- AS
1. AS kev ua haujlwm
AS yog propylene-styrene copolymer, tseem hu ua SAN, nrog qhov ceev ntawm 1.07g / cm3. Nws tsis yooj yim rau internal stress cracking. Nws muaj ntau dua pob tshab, kub softening thiab cuam tshuam lub zog tshaj PS, thiab tsis muaj zog tiv thaiv.
2. Kev thov ntawm AS
Cov tais, khob, tais diav, tub yees compartments, pob qhov rooj, teeb pom kev zoo accessories, ornaments, ntsuas tsom iav, ntim thawv, ntawv sau, roj teeb, txhuam hniav, thiab lwm yam.
3. AS ua cov txheej txheem
Kev ua haujlwm kub ntawm AS feem ntau yog 210 ~ 250 ℃. Cov khoom no yog ib qho yooj yim kom nqus noo noo thiab yuav tsum tau qhuav rau ntau tshaj ib teev ua ntej ua. Nws fluidity yog me ntsis phem dua PS, yog li qhov kev txhaj tshuaj siab kuj me ntsis siab dua, thiab pwm kub tswj ntawm 45 ~ 75 ℃ yog qhov zoo dua.
- ABS
1. ABS kev ua tau zoo
ABS yog acrylonitrile-butadiene-styrene terpolymer. Nws yog amorphous polymer nrog qhov ntom ntawm li 1.05g / cm3. Nws muaj lub zog txhua yam thiab cov khoom zoo ntawm "ntu, tawv thiab steel". ABS yog siv dav siv yas yas nrog ntau yam thiab siv dav. Nws tseem hu ua "general engineering yas" (MBS hu ua pob tshab ABS). Nws yog ib qho yooj yim rau cov duab thiab txheej txheem, muaj cov tshuaj tsis zoo, thiab cov khoom yog yooj yim rau electroplated.
2. Kev siv ntawm ABS
Lub twj tso kua mis impellers, bearings, tuav, kav, kav dej, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom ua si, saib rooj plaub, ntsuas ntsuas, dej tank casings, txias cia thiab tub yees sab hauv casings.
3. ABS txheej txheem yam ntxwv
(1) ABS muaj hygroscopicity siab thiab tsis zoo kub tsis kam. Nws yuav tsum tau qhuav tag thiab preheated ua ntej molding thiab ua kom tswj cov dej noo hauv qab 0.03%.
(2) Lub yaj viscosity ntawm ABS resin yog qhov tsis tshua muaj siab rau qhov kub thiab txias (txawv ntawm lwm cov amorphous resins). Txawm hais tias qhov kev txhaj tshuaj kub ntawm ABS yog siab dua li ntawm PS, nws tsis muaj qhov kub thiab txias nce ntxiv xws li PS, thiab qhov muag tsis pom cua sov siv tsis tau. Txhawm rau txo nws cov viscosity, koj tuaj yeem ua kom cov ntsia hlau nrawm lossis nce qhov kev txhaj tshuaj siab / nrawm txhawm rau txhim kho nws cov fluidity. Qhov kev ua haujlwm dav dav yog 190 ~ 235 ℃.
(3) Lub yaj viscosity ntawm ABS yog nruab nrab, siab dua li ntawm PS, HIPS, thiab AS, thiab nws cov dej ntws tsis zoo, yog li yuav tsum tau txhaj tshuaj ntau dua.
(4) ABS muaj cov txiaj ntsig zoo nrog qhov nruab nrab mus rau nruab nrab txhaj tshuaj nrawm (tshwj tsis yog cov duab nyuaj thiab nyias qhov xav tau kev txhaj tshuaj ntau dua), lub nozzle ntawm cov khoom yog qhov ua rau huab cua.
(5) ABS molding kub yog qhov siab, thiab nws cov pwm kub yog feem ntau hloov ntawm 45 thiab 80 ° C. Thaum tsim cov khoom loj, qhov kub ntawm cov pwm ruaj khov (pem hauv ntej pwm) feem ntau yog li 5 ° C siab dua li cov pwm txav tau (rov qab pwm).
(6) ABS yuav tsum tsis txhob nyob twj ywm hauv qhov kub kub ntev dhau (yuav tsum tsawg dua 30 feeb), txwv tsis pub nws yuav yooj yim decompose thiab tig daj.
- PMMA
1. Kev ua haujlwm ntawm PMMA
PMMA yog ib qho amorphous polymer, feem ntau hu ua plexiglass (sub-acrylic), nrog qhov ceev ntawm 1.18g / cm3. Nws muaj cov pob tshab zoo heev thiab lub teeb xa tawm ntawm 92%. Nws yog cov khoom siv kho qhov muag zoo; nws muaj kev ua haujlwm kub zoo (kub tsis kam). Qhov kub deformation yog 98 ° C). Nws cov khoom muaj nruab nrab txhua yam muaj zog thiab tsis tshua muaj deg hardness. Nws yog khawb tau yooj yim los ntawm cov khoom tawv thiab tawm cov kab. Piv nrog PS, nws tsis yooj yim rau nkig.
2. Kev siv PMMA
Cov khoom siv kho qhov muag, cov khoom siv kho qhov muag, cov khoom siv hluav taws xob, cov khoom siv kho mob, cov qauv pob tshab, kho kom zoo nkauj, hnub ci lo ntsiab muag, cov hniav cuav, daim ntawv tshaj tawm, moos vaj huam sib luag, tsheb taillights, windshields, thiab lwm yam.
3. Cov yam ntxwv ntawm PMMA
Cov txheej txheem ua haujlwm ntawm PMMA yog nruj. Nws yog rhiab heev rau ya raws thiab kub. Nws yuav tsum tau qhuav tag ua ntej ua. Nws cov viscosity yaj yog qhov siab, yog li nws yuav tsum tau molded ntawm qhov kub thiab txias (219 ~ 240 ℃) thiab siab. Cov pwm kub yog nyob nruab nrab ntawm 65 ~ 80 ℃ yog zoo dua. Lub thermal stability ntawm PMMA tsis zoo heev. Nws yuav raug degraded los ntawm qhov kub thiab txias los yog nyob rau ntawm qhov kub thiab txias ntev heev. Cov ntsia hlau ceev yuav tsum tsis txhob siab dhau (kwv yees li 60 rpm), vim nws yooj yim tshwm sim hauv cov khoom tuab PMMA. Qhov tshwm sim "void" yuav tsum muaj cov rooj vag loj thiab "cov khoom siv kub, siab pwm kub, qeeb ceev" kev txhaj tshuaj rau cov txheej txheem.
4. Acrylic (PMMA) yog dab tsi?
Acrylic (PMMA) yog ib qho ntshiab, tawv yas feem ntau siv rau hauv qhov chaw ntawm iav hauv cov khoom xws li shatterproof windows, illuminated paib, skylights thiab aircraft canopies. PMMA belongs rau tsev neeg tseem ceeb ntawm acrylic resins. Lub npe tshuaj ntawm acrylic yog polymethyl methacrylate (PMMA), uas yog cov khoom siv hluavtaws polymerized los ntawm methyl methacrylate.
Polymethylmethacrylate (PMMA) tseem hu ua acrylic, acrylic iav, thiab muaj nyob rau hauv cov npe lag luam thiab hom xws li Crylux, Plexiglas, Acrylite, Perclax, Astariglas, Lucite, thiab Perspex, thiab lwm yam. Polymethylmethacrylate (PMMA) feem ntau yog siv rau hauv daim ntawv raws li lub teeb yuag lossis shatterproof lwm txoj rau iav. PMMA kuj tseem siv tau los ua cov khoom pov thawj, tus cwj mem, thiab txheej. PMMA yog ib feem ntawm cov khoom siv yas engineering.
5. Acrylic ua li cas?
Polymethyl methacrylate yog tsim los ntawm polymerization raws li nws yog ib qho ntawm cov hluavtaws polymers. Ua ntej, methyl methacrylate yog muab tso rau hauv pwm thiab ib qho catalyst ntxiv kom ceev cov txheej txheem. Vim yog cov txheej txheem polymerization no, PMMA tuaj yeem ua rau ntau yam ntaub ntawv xws li nplooj ntawv, resins, blocks, thiab hlaws dai. Acrylic kua nplaum kuj tseem tuaj yeem pab muag PMMA daim thiab sib txuas ua ke.
PMMA yog ib qho yooj yim rau manipulate nyob rau hauv ntau txoj kev. Nws tuaj yeem txuas nrog lwm cov ntaub ntawv los pab txhim kho nws cov khoom. Nrog thermoforming, nws yuav hloov tau thaum rhuab thiab solidifies thaum txias. Nws tuaj yeem ua qhov loj me kom tsim nyog siv lub saw lossis laser txiav. Yog tias polished, koj tuaj yeem tshem tawm khawb ntawm qhov chaw thiab pab tswj nws txoj kev ncaj ncees.
6. Dab tsi yog qhov txawv ntawm acrylic?
Ob lub ntsiab ntawm acrylic yas yog cam khwb cia acrylic thiab extruded acrylic. Cam khwb cia acrylic yog kim dua los tsim tab sis muaj zog zoo dua, durability, clarity, thermoforming ntau thiab stability tshaj extruded acrylic. Cam khwb cia acrylic muaj cov tshuaj tiv thaiv zoo heev thiab ua haujlwm ntev, thiab yooj yim rau xim thiab duab thaum lub sijhawm tsim khoom. Cam khwb cia acrylic kuj muaj nyob rau hauv ntau yam thicknesses. Extruded acrylic yog kev lag luam ntau dua li cam khwb cia acrylic thiab muab ntau qhov sib xws, ua haujlwm zoo acrylic dua li cam khwb cia acrylic (ntawm tus nqi ntawm lub zog txo). Extruded acrylic yog ib qho yooj yim rau txheej txheem thiab tshuab, ua rau nws yog ib qho zoo heev lwm txoj rau iav los xij hauv daim ntaub ntawv.
7. Vim li cas acrylic thiaj li siv tau?
Acrylic feem ntau siv vim nws muaj tib yam zoo li iav, tab sis tsis muaj teeb meem brittleness. Acrylic iav muaj cov khoom siv kho qhov muag zoo heev thiab muaj qhov ntsuas pom zoo ib yam li iav hauv cov khoom hauv lub xeev. Vim tias nws cov khoom tawg tsis zoo, cov neeg tsim qauv siv tau acrylics nyob rau hauv qhov chaw uas iav yuav txaus ntshai heev los yog yuav ua tsis tau (xws li submarine periscopes, aircraft windows, thiab lwm yam). Piv txwv li, feem ntau daim ntawv ntawm mos mos iav yog 1/4-nti-thick piece ntawm acrylic, hu ua khoom acrylic. Acrylic kuj ua tau zoo hauv kev txhaj tshuaj molding thiab tuaj yeem tsim rau hauv yuav luag txhua yam uas tus tsim pwm tuaj yeem tsim. Lub zog ntawm acrylic iav ua ke nrog nws yooj yim ntawm kev ua thiab machining ua rau nws cov khoom zoo heev, uas piav qhia vim li cas nws thiaj li siv dav hauv cov neeg siv khoom thiab kev lag luam.
Post lub sij hawm: Dec-13-2023