Incamake yimikorere ya ABS na PMMA, Gutunganya Ibiranga nibisanzwe

ABS

Imikorere ya ABS

ABS igizwe na monomers eshatu za chimique acrylonitrile, butadiene na styrene. Urebye kuri morphologie, ABS ni ibikoresho bitari kristaline, bifite imbaraga zo gukanika hamwe nibikorwa byiza "bikomeye, bikomeye, ibyuma". Ni polymer amorphous, ABS ni plastiki yubuhanga rusange, ubwoko bwayo, imikoreshereze yagutse, izwi kandi nka "plastike rusange", ABS biroroshye gukuramo ubuhehere, uburemere bwihariye ni 1.05g / cm3 (biremereye gato kuruta amazi), kugabanuka gake igipimo (0,60%), ingano ihamye, gutunganya byoroshye.

Ibiranga ABS ahanini biterwa nikigereranyo cya monomers eshatu nuburyo bwa molekuline yibyiciro byombi. Ibi bituma habaho ihinduka rikomeye mugushushanya ibicuruzwa, bityo bikabyara amagana yibikoresho bitandukanye bya ABS kumasoko. Ibi bikoresho bitandukanye bifite ubuziranenge butanga ibintu bitandukanye, nkibiciriritse kugeza hejuru cyane birwanya ingaruka, hasi kugeza hejuru kandi biranga ubushyuhe bwo hejuru. Ibikoresho bya ABS bifite imashini nziza, ibiranga isura, kunyerera hasi, guhagarara neza cyane hamwe nimbaraga zikomeye.

ଏବ na forme. Ibibi ni ukurwanya ikirere, kurwanya ubushyuhe ni bibi, kandi birashya.

Ibiranga inzira ya ABS

ABS ifite hygroscopiness nyinshi hamwe nubushyuhe bukabije. Igomba gukama neza no gushyuha mbere yo gukora no kuyitunganya (kumisha kuri 80 ~ 90C byibuze amasaha 2), kandi nubushuhe bugenzurwa munsi ya 0.03%.

Ubushonga bwashonga bwa ABS resin ntabwo bwumva ubushyuhe (butandukanye nubundi amorphous resin). Nubwo ubushyuhe bwo gutera inshinge za ABS buri hejuru cyane ugereranije na PS, ntishobora kugira ubushyuhe bugari nka PS. Ubukonje bwa ABS ntibushobora kugabanuka no gushyushya buhumyi. Imikorere ya ABS irashobora kunozwa mukongera umuvuduko wa screw cyangwa igitutu. Ubushyuhe rusange bwo gutunganya muri 190-235 ℃ birakwiye.

Gushonga ibishishwa bya ABS ni biciriritse, birenze ibya PS, HIPS na AS, kandi harakenewe umuvuduko mwinshi wo gutera inshinge (500-1000 bar).

Ibikoresho bya ABS bifite umuvuduko wo hagati kandi muremure bifite ingaruka nziza. (keretse niba imiterere igoye kandi ibice byoroheje bisaba urukuta rwo hejuru), ibicuruzwa biroroshye kubyara imirongo ya gaze kumunwa.

Ubushyuhe bwa ABS buri hejuru, ubushyuhe bwabwo burahinduka muri 25-70 ℃. Iyo utanga ibicuruzwa binini, ubushyuhe bwagenwe (imbere yimbere) ubusanzwe burenze gato ugereranije nigenda (inyuma yinyuma) hafi 5 ℃ birakwiye. (Ubushyuhe bwububiko buzagira ingaruka kumpera yibice bya plastiki, ubushyuhe bwo hasi buzaganisha kumpera yo hasi)

ABS ntigomba kuguma muri barre yubushyuhe bwo hejuru cyane (munsi yiminota 30), naho ubundi biroroshye kubora n'umuhondo.

Urutonde rusanzwe

Imodoka (panele yibikoresho, inzugi zifata ibikoresho, ibipfukisho by'ibiziga, udusanduku twerekana, n'ibindi), firigo, ibikoresho bikomeye (ibyuma byogosha umusatsi, imvange, abatunganya ibiryo, ibyatsi, n'ibindi), ibyuma bya terefone, imashini yandika, imashini zidagadura nk'amagare ya golf n'amasasu y'indege nibindi.

PMMA 

Imikorere ya PMMA

PMMA ni polymer amorphous, izwi nka plexiglass. Gukorera mu mucyo bihebuje, kurwanya ubushyuhe bwiza (ubushyuhe bwa deformasiyo yubushyuhe bwa 98 ℃), hamwe nibiranga ingaruka nziza zo guhangana ningaruka, ibicuruzwa byimbaraga ziciriritse ziciriritse, ubukonje buke bwo hejuru, byoroshye gushushanya nibintu bikomeye hanyuma ugasiga ibimenyetso, ugereranije na PS, ntibyoroshye gucamo, uburemere bwihariye bwa 1.18g / cm3. PMMA ifite ibyiza byiza byo guhangana nikirere. Kwinjira k'umucyo wera ni hejuru ya 92%. Ibicuruzwa bya PMMA bifite birefringence nkeya cyane, bikwiranye no gukora amashusho ya videwo. PMMA ifite ibiranga ubushyuhe bwicyumba. Hamwe no kwiyongera k'umutwaro nigihe, guhagarika umutima birashobora guterwa.

Ibiranga inzira ya ABS

Ibisabwa gutunganya PMMA birakomeye, byumva cyane amazi nubushyuhe, mbere yo gutunganya kugirango byume neza (bisabwa ko byuma byumye 90 ℃, amasaha 2 kugeza kuri 4), ibishishwa byayo byashonga ni binini, bigomba gushingwa hejuru (225 -245 ℃) nigitutu, gupfa ubushyuhe muri 65-80 ℃ nibyiza. PMMA ntabwo ihagaze neza, kandi iyangirika rishobora guterwa nubushyuhe bwinshi cyangwa gutura igihe kirekire kubushyuhe bwinshi. Umuvuduko wa screw ntugomba kuba munini cyane (60% cyangwa irenga), ibice bya PMMA byoroshye biroroshye kugaragara "cavity", bigomba gufata irembo rinini, "ubushyuhe buke bwibintu, ubushyuhe buke bupfa, umuvuduko ukabije" uburyo bwo gutera inshinge.

Urutonde rusanzwe

Inganda zitwara ibinyabiziga (ibikoresho by'itara ryerekana ibimenyetso, ibikoresho byabigenewe nibindi), uruganda rwa farumasi (ibikoresho byo kubika amaraso nibindi), gukoresha inganda (disiki ya videwo, ikwirakwiza urumuri), ibicuruzwa byabaguzi (ibikombe byibinyobwa, ububiko n’ibindi).