Hauv kev tsim cov yeeb yaj kiab yas,peb - txheej tshuab tshuab zaj duab xisyog cov cuab yeej tseem ceeb rau kev tsim cov yeeb yaj kiab ua haujlwm siab nrog lawv cov txheej txheem tsim tshwj xeeb. Hom kev tsim no tuaj yeem muab cov ntaub ntawv sib txawv rau hauv cov khaubncaws sab nraud povtseg thiab ua tiav cov khoom siv uas nyuaj rau ib qho khoom ua tiav. Nws ua tau raws li qhov sib txawv ntawm cov khoom ntim khoom noj, ua liaj ua teb zaj duab xis, ntim khoom thiab lwm yam. Nws yog ib qho tseem ceeb heev los kawm cov txheej txheem tsim ntawmpeb - txheej tshuab tshuab zaj duab xisthiab cov mechanism ntawm optimizing zaj duab xis kev ua tau zoo.
Lub hauv paus ntsiab lus ntawm Layered Structure Design ntawm Peb -layer Membrane Blower
Lub hauv paus ntawm peb - txheej membrane tshuab yog nyob rau hauv nws cov txheej txheem txheej, uas feem ntau yog tsim los ntawm nto, nruab nrab thiab hauv qab txheej. Txhua txheej tuaj yeem xaiv los ntawm cov khoom sib txawv raws li cov kev xav tau tshwj xeeb. Peb txoj kev ywj pheej extruders yog siv rau melting thiab plasticizing cov ntaub ntawv sib txawv. Cov khoom molten yog ces coalesced rau hauv peb- txheej puas tubular yaj los ntawm ib co-extrusion tuag. Tom qab tshuab molding, txias, ncab, winding thiab thiaj li nyob rau hauv ib tug series ntawm cov txheej txheem, qhov kawg tsim ntawm ib tug peb - txheej puas zaj duab xis nrog tej yam khoom. Hauv qhov txheej txheem no, lubpeb- txheej tshuab tshuab zaj duab xisenables meej tswj txhua txheej thickness thiab cov khoom faib.
Lub hauv paus ntsiab lus ntawm cov txheej txheem tsim qauv no yog ua raws cov khoom sib txuas ntawm cov khoom sib txawv. Piv txwv li, cov ntaub ntawv saum npoo yuav tsom rau kev luam ntawv, khawb tsis kam thiab cov khoom thaiv; Cov ntaub ntawv nruab nrab yuav tsom rau kev muab cov khoom siv dag zog, kev ua haujlwm tsis zoo lossis thermal stability; thiab cov ntaub ntawv hauv qab no yuav tsom mus rau qhov kub thiab txias- sealability, tiv thaiv- thaiv cov khoom thiab kev sib raug zoo nrog cov khoom ntim. Los ntawm kev sib piv txhua txheej ntawm cov khoom siv, peb tuaj yeem siv tag nrho cov txiaj ntsig ntawm txhua txheej thiab ua tiav kev sib xyaw ua ke ntawm cov khoom ntawm cov yeeb yaj kiab.
Optimizing lub cev muaj zog ntawm nyias zaj duab xis los ntawm txheej txheej tsim qauv
Mechanical Properties
Cov txheej txheem tsim ntawm apeb- txheej tshuab tshuab zaj duab xistuaj yeem pab ua kom cov yeeb yaj kiab muaj zog. Cov txheej nruab nrab feem ntau siv cov ntaub ntawv muaj zog thiab tawv zoo li siab - ntom polyethylene (HDPE) lossis nylon (PA). Cov no muab cov yeeb yaj kiab feem ntau ntawm nws lub zog. Cov txheej sab saum toj thiab hauv qab tuaj yeem siv cov ntaub ntawv mos thiab ncab zoo li LDPE lossis linear LDPE. Cov no pab ua kom cov yeeb yaj kiab zoo dua ntawm kev tawm tsam punctures thiab kua muag.
Piv txwv li, siab -qhov ceev HDPE (HDPE) yog siv los tsim cov yeeb yaj kiab siab -lub zog ntim. Nws lub zog siab thiab modulus ua rau cov yeeb yaj kiab tuaj yeem tiv taus sab nraud loj yam tsis muaj kev tawg. LDPE lossis LLDPE yog siv rau saum npoo thiab hauv qab txheej. Nws zoo heev yooj yooj yim thiab elongation tuaj yeem cuam tshuam kev ntxhov siab thiab tiv thaiv qhov tawg ntawm kev sib kis thaum cov yeeb yaj kiab raug tho los yog tawg. Los ntawm cov txheej txheem txheej txheem no, lub zog tensile, kev nkag mus thiab tsim kua muag ntawm cov yeeb yaj kiab tau zoo heev, thiab cov kev xav tau ntawm cov khoom hnyav thiab kev thauj mus los tau ua tiav.
Optical Properties
Cov khoom siv kho qhov muag ntawm cov yeeb yaj kiab nyias, zoo li pob tshab thiab glossiness, yog qhov tseem ceeb heev hauv thaj chaw xws li ntim khoom noj thiab ntim zaub. Cov txheej txheem tsim ntawm peb - txheej zaj duab xis tshuab tuaj yeem ua rau cov yeeb yaj kiab kho qhov muag zoo dua. Nws ua qhov no los ntawm kev xaiv cov ntaub ntawv raug thiab los ntawm kev ua cov txheej txheem tsis zoo.
Kev xaiv ntawm cov khoom txheej txheej saum npoo muaj ib qho tseem ceeb cuam tshuam rau lub pob tshab ntawm cov yeeb yaj kiab. Cov ntaub ntawv siab pob tshab xws li metallocene linear low -density polyethylene (mLLDPE) yog siv los ua kom cov yeeb yaj kiab muaj lub teeb pom kev zoo thiab pom tseeb cov khoom hauv ntim. Nyob rau tib lub sijhawm, crystallization thiab orientation ntawm cov yeeb yaj kiab tuaj yeem txo qis, pos huab tuaj yeem txo qis thiab cov pob tshab ntawm cov yeeb yaj kiab tuaj yeem txhim kho los ntawm optimizing lub tshuab cheb piv thiab cov txheej txheem txias. Piv txwv li, nyob rau hauv kev tsim cov khoom ntim khoom ntim cov yeeb yaj kiab siab, mLLDPE yog siv rau hauv txheej txheej nrog qhov tawg ntawm qhov sib piv ntawm 2.5 thiab 3.0 thiab siv cov txheej txheem txias sai. Qhov no tuaj yeem ua rau cov yeeb yaj kiab ntau dua 90 pob tshab thiab ua tau raws li qhov xav tau ntawm kev ntim khoom noj.
Barrier yam ntxwv
Barrier zog yog ib qho tseem ceeb Performance index ntawm zaj duab xis zoo, uas ncaj qha cuam tshuam lub txee lub neej thiab zoo ntawm ntim khoom. Cov txheej txheem txheej txheem tsim ntawm peb - txheej kiv cua tuaj yeem ua rau kev ua haujlwm ntawm cov yeeb yaj kiab zoo dua. Nws ua tiav los ntawm kev ntxiv cov khoom thaiv siab xws li ethylene-vinyl cawv copolymer (EVOH), polyvinylidene chloride (PVDC) lossis nylon (PA) rau nruab nrab ntawm zaj duab xis.
EVOH yog cov khoom siv uas muaj cov pa oxygen barrier zoo heev. Nws cov pa permeability yog ntau txhiab zaus qis dua li ntawm cov polyethylene zoo tib yam. Los ntawm kev ntxiv EVOH hauv nruab nrab, nws tuaj yeem nres cov pa oxygen, dej vapor, thiab cov tshuaj tsw qab los ntawm kev nkag mus. Nws tseem tuaj yeem ua rau lub txee lub neej ntawm cov khoom ntim khoom ntev dua. Piv txwv li, hauv kev tsim cov ntawv ntim khoom noj, EVOH yog siv rau hauv nruab nrab txheej. Los ntawm cov txheej txheem tsim nyog thiab kev tswj xyuas cov txheej txheem, cov pa oxygen permeability ntawm cov yeeb yaj kiab tuaj yeem raug txo kom tsawg dua 0.5 cm³ / (m²·24h·0.1 MPa) thiab cov dej vapor permeability tsawg dua 2 g / (m²·24h), uas ua tau raws li cov kev cai ntawm kev khaws zaub mov.
Optimizing Chemical Properties ntawm nyias zaj duab xis los ntawm txheej txheej tsim qauv
Chemical Corrosion Resistance
Hauv qee qhov kev siv, cov yeeb yaj kiab yuav tsum muaj tshuaj tiv thaiv corrosion los tiv thaiv cov khoom ntim los ntawm tshuaj lom neeg corrosion. Cov txheej txheem txheej txheem tsim ntawm peb - txheej membrane tshuab tuaj yeem ua tiav los ntawm kev xaiv cov khoom siv tshuaj tiv thaiv corrosion.
Piv txwv li, hauv thaj tsam ntawm cov khoom ntim tshuaj, polytetrafluoroethylene (PTFE) lossis polypropylene (PP) tuaj yeem siv los ua cov txheej txheej saum npoo. Cov ntaub ntawv no muaj cov tshuaj tiv thaiv corrosion zoo heev. Lawv tuaj yeem tiv taus acid, alkali, ntsev, thiab lwm yam tshuaj lom neeg. Cov ntaub ntawv uas muaj cov khoom siv zoo, xws li high density polyethylene (HDPE) lossis polyacrylonitrile (PAN), tuaj yeem siv rau hauv nruab nrab txheej. Qhov no muab kev txhawb nqa thiab kev tiv thaiv rau zaj duab xis. Nrog rau cov txheej txheem txheej txheem no, cov yeeb yaj kiab tuaj yeem khaws cov khoom ruaj khov hauv cov chaw muaj tshuaj lom neeg hnyav. Nws kuj tseem pab khaws cov khoom ntim kom zoo.
Thermal stability
Thermal stability txhais tau hais tias cov yeeb yaj kiab tuaj yeem nyob ruaj khov hauv qhov kub thiab txias. Qee qhov kev siv yuav tsum tau kho qhov kub thiab txias los yog siv kub. Cov no suav nrog kev ntim khoom cua sov thiab retort ntim. Rau cov ntawv thov no, cov yeeb yaj kiab xav tau thermal stability zoo. Cov txheej txheem txheej txheem tsim ntawm peb - txheej zaj duab xis tshuab tuaj yeem txhim kho thermal stability ntawm zaj duab xis los ntawm kev xaiv cov khoom siv hluav taws xob nyob rau hauv qis thiab nruab nrab txheej.
Piv txwv li, nyob rau hauv kev ua cov retort ntim zaj duab xis, polyamide (PA) los yog polyethylene terephthalate (PET) yuav siv tau nyob rau hauv nruab nrab txheej. Cov ntaub ntawv no muaj cov ntsiab lus siab melting thiab zoo thermal stability. Lawv kuj nyob ruaj khov nyob rau hauv qhov kub thiab txias kom tsis muaj menyuam. Cov ntaub ntawv uas muaj cua sov sealability zoo, xws li LDPE lossis ethylene -vinyl acetate copolymer (EVA), tuaj yeem siv rau saum thiab hauv qab txheej. Qhov no yuav pab kom cov zaj duab xis kaw tau zoo ntawm qhov kub thiab txias. Nrog rau cov txheej txheem tsim, zaj duab xis tuaj yeem tswj qhov kub thiab txias siab tshaj 120 degree. Qhov no ua tau raws li qhov xav tau ntawm cov khoom noj retort ntim.
Optimization of Film Processing Performance Los ntawm Layered Structure Design
Thaum tshav kub kub-Sealability
Thaum tshav kub kub sealability yog ib qho tseem ceeb ua khoom ntawm cov zaj duab xis. Nws ncaj qha cuam tshuam rau kev sib khi thiab kev ntseeg siab ntawm kev ntim khoom. Cov txheej txheej txheej tsim ntawm peb - txheej tshuab tuaj yeem ua rau cov yeeb yaj kiab cua sov sealability zoo dua. Nws ua qhov no los ntawm kev ntxiv cov khoom siv hluav taws xob zoo li EVA lossis LDPE rau hauv qab txheej ntawm zaj duab xis.
EVA yog ib yam khoom uas muaj cua sov zoo heev - sealability, dav thermal sealing kub ntau thiab siab thermal sealing zog. Tom qab ntxiv EVA rau hauv qab, nws tuaj yeem ua tiav cov cua sov zoo- sealing nyhuv ntawm qhov kub thiab txias, muaj lub zog sealing siab thiab txo qhov kev pheej hmoo ntawm huab cua to. Piv txwv li, hauv kev tsim cov hnab ntim khoom noj, EVA yog siv rau hauv qab. Los ntawm kev kho EVA cov ntsiab lus thiab cov txheej txheem thermalsealing tsis, thermal sealing kub ntawm cov yeeb yaj kiab tuaj yeem txo qis dua 100 degree, thiab lub zog thermal sealing tuaj yeem ncav cuag ntau dua 5 N / 15 hli, txaus siab rau cov khoom ntim khoom noj.
Kev luam tawm
Printability yog ib qho tseem ceeb daim ntawv thov cov cuab yeej ntawm zaj duab xis nyob rau hauv ntim teb, uas ncaj qha cuam tshuam lub zoo nkauj thiab cov ntaub ntawv kis tau tus mob nyhuv ntawm ntim. Cov txheej txheem txheej txheem ntawm peb - txheej tshuab tuaj yeem txhim kho kev luam tawm ntawm zaj duab xis los ntawm kev ntxiv cov ntaub ntawv luam tawm xws li copolypropylene (CPP) lossis siab - ntom polyethylene (HDPE) rau saum npoo.
CPP is an excellent printability material, high surface tension, strong ink adhesion, can achieve high quality printing effect. Tom qab ntxiv CPP rau txheej txheej, zaj duab xis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm gravure printing, flexo printing, screen printing thiab lwm yam txheej txheem luam ntawv. Piv txwv li, hauv kev tsim cov khoom ntim khoom noj khoom haus siab - kawg, CPP yog siv rau ntawm qhov chaw. Txais cov txheej txheem kho saum npoo los txhim kho qhov nro ntawm cov yeeb yaj kiab. Txhua nti ntawm kev luam ntawv tuaj yeem ua tau ntau dua 150 kab ntawm qhov pom tseeb, cov xim ci thiab ua tau raws li cov kev cai luam ntawv ntawm siab - kawg ntim.
Xaus
Cov txheej txheem tsim ntawmpeb - txheej tshuab tshuab zaj duab xismuab qhov chaw dav rau optimizing cov khoom ntawm daim nyias nyias. Cov khoom siv kho qhov muag, cov khoom siv kho qhov muag, cov khoom thaiv kev tiv thaiv, cov khoom siv tshuaj lom neeg thiab cov khoom ua haujlwm ntawm cov yeeb yaj kiab tuaj yeem txhim kho tau zoo los ntawm kev xaiv txhua txheej ntawm cov khoom siv thiab ua kom zoo dua cov txheej txheem tsim qauv thiab cov txheej txheem thev naus laus zis, txhawm rau ua kom tau raws li qhov sib txawv ntawm cov khoom sib txawv. Nrog rau kev txhim kho txuas ntxiv ntawm cov ntaub ntawv kev tshawb fawb thiab kev tsim technology, cov txheej txheem txheej txheem tsim ntawm peb - txheej zaj duab xis blowers yuav txuas ntxiv tshiab thiab zoo meej, coj ntau txoj hauv kev txhim kho thiab cov nyom rau kev lag luam ua yeeb yaj kiab. Nyob rau hauv lub neej yav tom ntej, peb yuav tsum ntxiv dag zog rau cov txheej txheem txheej txheem ntawm peb - txheej zaj duab xis blowers, tshawb nrhiav cov khoom tshiab ua ke thiab txheej txheem txheej txheem, txhawb kev txhim kho kev ua yeeb yaj kiab tsis tu ncua, thiab muab cov khoom ua yeeb yaj kiab zoo dua rau kev txhim kho ntawm txhua qhov kev lag luam.
