Nhau

Mumakore achangopfuura, kune akawanda-screw extruder system yakagadzwa mumusika seimwe nzira yekuna imwe chete - screw inopararira neyakaderera system. .

Asi isu tinofunga kuti zvinodikanwa kuti uve nehurongwa hwekuomesa-kupfeka iwe uri kushandisa akawanda-screw inowedzera. Nekuti:

1) Multi-screw inowedzera izvo zvavanove nezvirimo zvakaoma-zvakaenzana nemagetsi akaiswa pane anowedzera kuti adzivirire hydrolysis mhedzisiro yekuitika pasina pre-yekunyorovesa maitiro. Kazhinji mhando dzakadai dzinosarudzika pakushandisa mamiriro ezvinhu:

Maximum Anobvumidzwa Fuedy Moistures haafanire kuve akakwirira kupfuura 3000 PPM (0.3%)

Muchokwadi, mabhodhoro emabhonzo anoratidza kusiyana-siyana mukuchena, chizvarwa chemuviri, chidimbu chekugovaniswa uye kukakavara - uye kunyanya mune humidity. Post-Consumer Flakes Bvumira Kuchengeta kusvika kune yakaenzana 5,000 PPM yeiyo humidity mune chigadzirwa uye kuunganidza kakawanda huwandu hwemvura iri pamusoro pemvura. Mune dzimwe nyika, chikafu chekupa manyoro chinogona kusvika kune gumi nemaviri ppm chakatovirirwa muhomwe hombe.

Zvese zviri zviviri mwero wezvemvura zvemvura uye kusiyana kwaro, izvo zvisingadzivirirwe, ndiro dambudziko chairo kune iyo yakawanda-screw inoparara uye yakanangana neDhigheni pfungwa. Izvi zvinowanzoitika zvinokonzerwa nekuchinja kwekutenderera, izvo zvinoonekwa kubva mukudzvinyirira kwakasiyana-siyana kwekupedzisira kweanowedzera kuwanda kwekunyungudika kuchiri kusvika pakafundisi kune iyo yekutsausa nekuda kwekutanga kunyorova mu resin, uye iyo mari yakabviswa panguva yekuvhara

2) PET ine hygroscopic uye inobata unyoro kubva mumhepo. Zvizhinji zvehuremu zvinyoro zvichiramba hydrolyze peturu mune chinyungudika chikamu, kuderedza suremu. PET UNOFANIRA KUTENDA PASI PASI PASI PASI PESI, uye AMORPHOUS PET ZVINOGONESA KUTI Uite KUTI ZVINONYANYA KUKOSHESA PAKUTI VANOTI VANOTENDA.

Hydrolysis inogona kuitika nekuda kwekunyorova uye izvi zvinowanzoonekwa sekudzikiswa muIV (intrinsic viscosity) yechigadzirwa. Pet ndeye "hafu-crystalline". Kana iyo iv iri kuderedzwa, mabhodhoro ari more brontle uye anotadza kutadza ku "gedhi" (jekiseni rejekiti) panguva yekuputika uye kuzadza.

Mu "Crystalline" nyika ine zvese zvakachema uye maAmorphous zvikamu mune yayo molecular chimiro. Iyo Crystalline chikamu chinokura uko mamorekuru anogona kuzvienzanisa nemamereti akakomberedza mutsara. Mune iyo isina-crystalline matunhu mamalecules ari mune imwe gadziriro yakasarudzika. Nekusimbisa kuti yako crystallinity yakakwira, isati yagadziriswa, mhedzisiro ichave yunifomu uye yakakwirira mhando chigadzirwa.

Ode akaita kuti IRD infrared rotary Drum system yakaita izvi zvikamu zvezvikamu izvi nenzira inonyanya kuita simba. Nzvimbo dzakasarudzika dzakapusa dziripo dzakapfava dzinomutsa zvinyoro-nyoro zvinopisa zvinopisa zvakananga mune yakaoma zvinhu zvakananga pasina kutora iyo isingaenzaniswi pakati pekushandisa mhepo yekutsvaka. Nzira yekupisa yakadaro mukupisa-up uye kuoma uye kuoma kwakaderedza kusvika pamaminitsi makumi maviri nemasere zvichienderana neshanduko chaiyo, apo maawa akati wandei anofanirwa kuverengerwa kuti anopisa anopisa-mhepo kana yakaoma-mhepo.

Infrared kuoma kunogona kugadzirisa zvakanyanya kuita kwe twin-screw inowedzera nekuti inoderedza kusvibiswa kweIV kukosha uye kunatsiridza zvakanyanya kugadzikana kweiyo yese maitiro.