PLA na PBAT

Nubwo byombi ari ibikoresho bibora, inkomoko yabyo iratandukanye. PLA ikomoka kubinyabuzima, mugihe PKAT ikomoka mubikoresho bya peteroli.

Ibikoresho bya monomer bya PLA ni aside ya lactique, ubusanzwe ihingwa n ibihingwa byumusatsi nkibigori kugirango bikuremo ibinyamisogwe, hanyuma bigahinduka glucose itunganijwe.

Glucose ihita isemburwa muburyo busa n'inzoga cyangwa inzoga, hanyuma amaherezo monomer acide lactique. Acide lactique isubirwamo na lactide kuri poly (acide lactique).

BAT polyterephthalic acide - butanediol adipate, ni iy'ibikoresho bya peteroli y’ibinyabuzima byangiza ibinyabuzima, biva mu nganda za peteroli, monomer nyamukuru ni aside terephthalic, butanediol, aside adipic.

Niba PLA ari igikomangoma gito kandi gikomeye, noneho PBAT numuyoboro mwiza wumugore utukura. PLA ifite modulus nyinshi, imbaraga zingana kandi zidahindagurika, mugihe PKAT ifite umuvuduko mwinshi wo gukura no kuvunika neza.

PLA ni nka PP muri plastiki rusange, gushushanya inshinge, gusohora, guhumeka, blister irashobora gukora byose, PBAT irasa na LDPE, gupakira imifuka ya firime nibyiza kuri.

PLA ni umuhondo woroheje ucyeye, ushikamye neza, ubushyuhe bwo gutunganya 170 ~ 230 ℃, bufite imbaraga zo guhangana na solvent, birashobora gutunganywa muburyo butandukanye, nko gusohora, kuzunguruka, kurambura biaxial, gutera inshinge.

Kimwe na PP, gukorera mu mucyo bisa na PS, PLA isukuye ntishobora gukoreshwa mugutegura ibicuruzwa mu buryo butaziguye, PLA ifite imbaraga nyinshi na modulus yo kwikuramo, ariko ubukana bwayo bukomeye kandi bubi, kubura guhinduka no guhindagurika, byoroshye guhinduranya imikorere, ingaruka no kurira kurwanywa ni bibi.

Ubusanzwe PLA ikoreshwa mugukora ibicuruzwa byangirika nyuma yo kubihindura, nkibikoresho byo kurya byangirika hamwe nibyatsi.

PBAT ni polymer ya kimwe cya kabiri cya kirisiti, ubusanzwe ubushyuhe bwa kristu bugera kuri 110 ℃, naho gushonga bigera kuri 130 ℃, naho ubucucike buri hagati ya 1.18g / mL na 1.3g / mL. Crystallinity ya PBAT igera kuri 30%, kandi ubukana bwa Shore buri hejuru ya 85. Imikorere yo gutunganya PBAT isa na LDPE, kandi inzira nkiyi irashobora gukoreshwa mugukina firime. Ibikoresho bya mashini byombi biranga PBA na PBT, guhindagurika neza, kurambura kuruhuka, kurwanya ubushyuhe no kurwanya ingaruka. Kubwibyo, ibicuruzwa bitesha agaciro nabyo bizahindurwa, cyane cyane kugirango huzuzwe ibisabwa nibicuruzwa, ariko kandi bigabanye ibiciro.

Nubwo PLA na PBAT bafite imikorere itandukanye, barashobora kuzuzanya! PLA yuzuza ubukana bwa firime ya PBAT, PBAT irashobora kunoza imikorere ya PLA, kandi ikarangiza hamwe igamije kurengera ibidukikije.

Kugeza ubu, ibyinshi mubisabwa bishingiye kubikoresho bya PBAT kumasoko nibicuruzwa bya membrane. Ibikoresho byahinduwe na PBAT ahanini bikoreshwa muguhuha firime mugukora imifuka, nkimifuka yo guhaha.

Ibikoresho bya PLA bikoreshwa cyane mugushushanya inshinge, kandi ibikoresho byahinduwe na PLA bikoreshwa cyane mubikoresho byo kurya byangirika, nkibisanduku byokurya byangirika, ibyatsi byangirika, nibindi.

Kumwanya muremure, ubushobozi bwa PLA buri munsi gato ugereranije nubwa PBAT. Kubera ikibazo kinini cy’ikoranabuhanga ribyara umusaruro wa PLA no kutagira intambwe mu iterambere rya lactide, ubushobozi bwa PLA mu Bushinwa ntabwo bwiyongereye ku buryo bugaragara, kandi igiciro cy’ibikoresho fatizo bya PLA kirahenze cyane. Ibigo 16 bya PLA byashyizwe mu bikorwa, byubatswe cyangwa biteganijwe kubakwa mu gihugu no hanze yacyo. Ubushobozi bwo kubyaza umusaruro bwashyizwe mubikorwa bya toni 400.000 / mwaka, cyane cyane mubihugu byamahanga; Ubushobozi bwo kubaka toni 490.000 / mwaka, cyane cyane murugo.

Ibinyuranye, mubushinwa, ibikoresho fatizo byumusaruro wa PBAT biroroshye kubibona, kandi tekinoloji yumusaruro irakuze. Ubushobozi bwa PBAT nubushobozi bwubakwa ni bunini. Ariko, itandukaniro ryigihe cyo kurekura ingufu za PBAT rishobora kuramba kubera ihindagurika ryibiciro byibikoresho fatizo BDO, kandi igiciro cya PBAT kiracyahendutse kuruta PLA.

Nkuko bigaragara mu mbonerahamwe ikurikira, PBAT iri kubakwa + iteganijwe kubakwa ibarwa hashingiwe ku bushobozi bwo gutanga icyiciro cya mbere, hiyongereyeho ubushobozi bw’umwimerere, hashobora kuba toni miliyoni 2.141 z’umusaruro mu 2021. Urebye bimwe mu byiciro bya mbere. umusaruro ntushobora gushyirwa mubikorwa neza, ubushobozi bwo kubyaza umusaruro ni toni miliyoni 1.5.

Agaciro kambere ka PLA karenze PBAT, ariko kubera ko ibicuruzwa byimifuka ya membrane byabanje kwibasirwa na politiki, bigatuma PBAT ibura, mugihe kimwe, igiciro cya PBAT monomer BDO cyazamutse cyane, umuyoboro wubwiza wubu utukura PBAT yihuse kugirango ifate igiciro cya PLA.

Mugihe PLA ikiri igikomangoma gito gituje, igiciro kirahagaze neza, hejuru ya 30.000 yuan / toni.

Ibyavuzwe haruguru ni igereranya rusange ryibikoresho byombi. Iyo ushyikirana nabakozi bo mu nganda kubyerekeye ibikoresho byiza cyane mugihe kizaza, buriwese afite ibitekerezo bitandukanye. Abantu bamwe batekereza ko PLA izaba inzira nyamukuru mugihe kizaza.

Abantu bamwe batekereza ko PBAT izaba inzira nyamukuru, kuko urebye ko PLA ikomoka mubigori, ikibazo cyo gutanga ibigori gishobora gukemuka? Nubwo PBAT ishingiye kuri peteroli, ifite ibyiza bimwe mubikoresho fatizo nibiciro.

Mubyukuri, ni umuryango, ntakibazo gihari, gusa byoroshye guhinduka, bigira kuri mugenzi wawe kugirango ukine imbaraga zikomeye!