Narke kwarara (MFI) da sarrafa polymer

Me ya sa polymers sauki da tsari? Amsar tana kwance a cikin narkewararrawa mai narkewa (MFI). MFI yana auna yadda cikin sauƙi polymer narke da gudana, yana wasa muhimmin matsayi a cikin masana'antar polymer. Yana da mahimmanci don zaɓin hanyar sarrafa dama da tabbatar da ingancin samfurin. A cikin wannan post, zaku koyi tushen MFI, mahimmancin sa a cikin sarrafa polymer, kuma yadda yake tasiri aikin samfurin. Za mu kuma bincika dalilai waɗanda ke tasiri MFI, hanyoyi don canza shi, da kuma yadda ake amfani da shi a cikin kulawa mai inganci.

Mene ne narkewar Nemo (MFI)?

Narke kwarara (MFI) yana aiki azaman muhimmin iko mai mahimmanci na ƙimar iko na ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwa ko ƙwayar narkewa. Yana nuna yadda sauƙaƙen polymers yana gudana ƙarƙashin takamaiman yanayin matsin lamba da yanayin zafi.

Fahimtar MFI da ma'auninsa

MFI yana wakiltar yawan adadin kwararar da aka ambata ta hanyar daidaitawa a ƙarƙashin yanayin da aka wajabta:

• Ma'anar : nauyin (a cikin grams) na polymer yana gudana cikin wani takamaiman mutu a cikin minti 10

• Gwabayen gwaji :

• Mutu diamita da tsawon (daidaitacce)

• Amfani da matsa lamba (nauyi)

• Sarrafa zazzabi

MFI kamar yadda mai nuna kayan mallakar

MFI yana daidaita kai tsaye ga halaye na polymer:

1. Kayayyakin kwayoyin :

• Matsakaicin nauyin kwaya

• Rarraba nauyi

• Fasali farawar sarkar

2. Halin sarrafa :

• Hana danko

• Halayen Halayen Ruwa

• Danko na Elongation

• Narke ƙarfi

3. Aikace-aikacen aikace-aikacen :

   babban mfi (> 10 g / 10min) → allurar molding matsakaici mfi (2-10 g / 10min) → Version low mfi (<2 g / 10min) → Veryara molding

Ka'idojin MFI

Tsarin gwajin ya biyo bayan hanyoyin tabbatar da sakamako mai dogaro: sakamakon

1. Matakan Gwaji :

• Zafafa polymer zuwa ƙayyadadden zafin jiki

• Aiwatar da daidaitaccen nauyi

• Aididdige nauyin kayan aiki

• Lissafta kudin kwarara

2. Sabbin sigogi masu mahimmanci :

• Ikon zazzabi (± 0.5 ° C)

• Madaidaicin nauyi

• Daidaitaccen lokaci daidai

• Samfura Samfura

3. Yanayin gwaji na daidaitawa (misalai):

polymer	(° C)	kaya (kg)
Polyethylene	190	2.16
Polypropylene	230	2.16
Polystyrene	200	5.0

Tsarin gwaji

Cikakken ma'aunin MFi yana buƙatar tsananin riko da ladabi:

• Tsarin Samfurin Samfuri

• Calibration da ya dace

• Yanayin gwaji na daidaitaccen abu

• Gyara na yau da kullun

• Fasaha mai fasaha

Muna ba da shawarar bin ISO 1133 ko ASM D1238 na ingantaccen sakamako. Waɗannan hanyoyin suna tabbatar da haifuwa da kuma sinadari a fadin wuraren gwaji daban-daban.

SAURARA: Theawawar MFI suna taimakawa wajen tantance hanyoyin sarrafa abin da ya dace da ƙare aikace-aikace. Fahimtar MFI yana ba da damar masana'antun don inganta sigogin samarwa yadda yakamata.

Dangantaka tsakanin MFI da Polymer Polymer

Gyara tsakanin MFI da kayan kwalliyar polymer sun tabbatar da asali wajen tantance hanyoyin sarrafawa da halaye na kayan aikin ƙarshe. Fahimtar wadannan dangantakar tana sa masana'antun don inganta hanyoyin samarwa yadda yakamata.

MFI-kwayoyin halitta nauyi

MFI ta nuna kyakkyawar dangantakar kwayoyin halitta ga nauyin kwayar halitta, bayan daidaituwa mai lalacewa don layin polymer:

log MW = 2.47 - 0.234 LOG MF

A ina:

• Mw = nauyin kwayoyin (Kdalton)

• MF = narke mai gudana (yanayin daidaitaccen yanayi)

Key daidaito:

• Darajojin MFi mafi girma suna nuna ƙananan ƙananan ƙwayoyin cuta na ƙwararraki, suna ba da sauki mai sauƙi amma rage yawan kayan aikin

• Darajojin MFi suna ba da shawarar mafi girman nauyin ƙwayoyin cuta, samar da haɓaka haɓaka injiniyoyi amma yana buƙatar ƙarin yanayin aiki

Kwayar cutar kwayoyin halitta

Rarraba kayan aikin kwayoyin halitta muhimmanci yana tasiri halaye na MFI ta hanyoyi da yawa:

• Rarraba Rarraba : Polymers suna nuna kewayon nauyin kwayoyin halitta masu yawa suna nuna tsarin kwarangwal na nuna halaye na kwarara, wanda ya shafi ikon aiwatar da sigogin aiki don cimma kyakkyawan sakamako.

• Rarraba rarrabe : kayan da ke da girman halayen da ake iri na kwayoyin halitta, yana iya sarrafa halayen da suka shafi amfani da su yayin aiki amma yiwuwar iyakance aikace-aikacen su.

Dangantakar kula-mfi

Dangantaka ta Cinta tsakanin danko da MFI ta bayyana ta hanyar dalilai da yawa:

1. Dubawar Zama :

• Matsakaici mafi girma suna rage danko, ƙara yawan mfi

• Kowace 10 ° C ya canza yawanci yana inganta MFI da 20-30%

2. Tasirin Sharar Adali :

• Addara darajar karfi gabaɗaya ƙananan danko

• Wannan dangantakar ta zama mahimmanci a cikin ayyukan sarrafa aiki

Yarjejeniyar Hanyar aiki

Tasirin sarrafawa daban- na buƙatar takamaiman jerin MFI don ingantaccen aiki:

Hanyar sarrafawa	shawarar da aka ba da shawarar MFI Range (G / 10min)	daban
Allurar gyara	8-20	Sassan fasaha, kwantena
Bude molding	0.3-2	Kwalabe, kwantena
Hawa	2-8	Fim, zanen gado, bayanan martaba
Fiber Zagi	10-25	Rubutun FIBERS, Norwwovens

Aikace-aikacen takamaiman aikace-aikace

Halittar MFI suna da muhimmanci tasiri halaye kayan aikin ƙarshe:

1. Babban aikace-aikacen MFI (> 10 g / 10min):

• Tsarin daidaitaccen tsari na daidaitattun abubuwan da aka gyara suna buƙatar damar haɗi masu ƙarfi daga babban rashawa don samar da ƙwararrun geommes yayin riƙe tsauraran haƙuri.

2. Aikace-aikacen MFi Matsakaici (2-10 g / 10min):

• Abubuwan da aka fitar dasu kamar fina-finai da zanen gado suna buƙatar daidaita kaddarorin kwarara, ba da izinin ragi a kan rarraba kayan aiki yayin da aka rarraba rarraba kayan aiki a duk faɗin samfurin.

3. Aikace-aikacen MFI low (<2 g / 10min):

• Bude kwantena da manyan sassan suna buƙatar ingantaccen ƙarfi na narke, yana ba da ingantaccen sifar Parison da hana wuce haddi yayin ayyukan sarrafawa.

SAURARA: Waɗannan taruruwan suna aiki da jagorori. Takamaiman aikace-aikace na iya buƙatar dabi'u a bayan waɗannan kewayon dangane da damar kayan aiki da buƙatun samfur.

Dalilai da suka shafi fadada na narkewa

Daidai da amincin mfi suna dogara da masu canji da yawa. Fahimtar wadannan dalilai suna ba da tabbacin ingancin kulawa da ingantaccen tsari na polymer.

Tasirin zazzabi

Zazzabi yana tasiri yana tasiri a kan ma'aunai na MFI ta hanyar da yawa:

1. Tabbatarwa yana canzawa :

• Babban yanayin zafi ya rage danko na polymer na narke da kuma kimar MFI mafi girma, yayin da ke shafar tsarin sarkar kwayoyin halitta yayin tsarin gwaji.

2. Motrafukan kwayoyin halitta :

• Tsara yanayin zafi Inganta polymer sarkar motsi, yana haifar da rage tashin hankali tsakanin sarƙoƙi da sauƙaƙe da ke gudana ta hanyar gwajin nauyi.

3. Rashin haɗarin lalata :

• Matsalar data kasance mai yawa na iya haifar da lalata polymer, yana haifar da tsarin kwayoyin halitta na dindindin da ke canzawa da kuma samar da sakamakon da ba za a iya ba da gaskiya ba.

Tasiri matsa lamba

Matsalar matsin lamba na matsin lamba na MFi ta hanyar halayyar Hancin Hiolom:

1. Narke compressity :

• Yawan matsin lamba na motsa jiki na girke-girke polymer ya narke, da canza halayen dankalinsu na gani yayin gwaji, mai yiwuwa ya shafi daidaito na MFI.

2. Halin gudana :

• Babbar Matsakaican matsin lamba da sarkar polymer da shirya yanayin da aka kwantar da kayan abu ta hanyar gwajin ya mutu da kuma cutar lissafin MFI.

Sample shiri tasiri

Shiri mai kyau ya dace da mahimmanci don mahimmanci na MFI:

1. Ikon danshi :

• Hygroscopic Polymers suna buƙatar bushewa sosai kafin gwaji, kamar yadda ragowar danshi ke shafar halayen kwarara kuma yana haifar da ma'aunin MFI.

2. Yanayin jiki :

• Sample daidaituwa, gami da rarraba girman barbashi da lissafin lissafi, tasirin halaye na halaye yayin hanyoyin gwajin MFI.

Daidaita sigogi na gwaji

Ikon kula da zazzabi

Aiwatar da m sarrafa zazzabi:

• Bukatun Calibration :

• Calibrication na Senor na yau da kullun yana tabbatar da daidaito a cikin ± 0.5 ° C na yanayin gwajin, rike sakamakon amincin gwaji da yawa.

• Daidaitaccen daidaitattun daidaito :

• Isasshen lokacin dumin-dumi yana ba da damar rarraba yawan zafin jiki a cikin gwajin, yana hana wuraren shakatawa mai zafi ko yankuna masu sanyi shafi ma'aunin kwarara.

Matsakaicin Matsayi

Kulawa da yanayin matsin lamba: kewayon matsin

lamba	(kg)	kewayon zafin jiki (keway)
Astm D1238	2.16 - 21.6	190 - 300
ISO 1133	2.16 - 21.6	190 - 300

Tabbacin samfuri

Matakan shirye-shiryen shiri:

1. Hanyoyi na gwaji :

• Aiwatar da cikakkun manufofin bincike na ganowa gano crupols, danshi abun ciki, da barbashi girman girman da aka rarraba kafin gudanar da ma'aunai na MFI a karkashin daidaitattun yanayi.

2. Kayan aiki :

• Kashe abubuwan bushewa masu yawa masu kyau masu amfani da su, saka idanu da sigogi lokaci don cimma kaddarorin danshi wanda ba tare da lalata kayan lambu ba.

3. Loading dabara :

• Yi hankali da samfuri na gabatarwar Gabatarwa da kuma tabbatar da ire-iren ulci da tabbatar da daidaituwa a cikin gwajin gwajin don samun sakamakon MFI.

Narke kayan gwaji na gwaji da ka'idoji

Kayan aiki na MFI na zamani suna haɗu da ikon daidaitawa da kuma aikin sada zumunta. Abubuwan da ke gaba sun tabbatar da ingantaccen ingancin iko ta hanyar daidaitattun hanyoyin gwaji.

Kayan aiki

Presto MFI GWAMNATI HUKUNCIN SAUKI:

1. Tsarin sarrafawa

• Ayyukan microprocessor suna ba da damar zazzabi daidai da sarrafa matattara a ko'ina cikin hawan gwaje-gwaje.

• Abubuwan dijital suna ba da kulawa na ainihi na gaske da mahimman bayanai da sakamako.

2. Abubuwan ma'auni

• Rubutun tsarin tattara bayanai na atomatik da kuma nazarin sakamakon gwajin don tabbacin ingancin.

• Hadaddamar da ladabi na daidaituwa na daidaito suna tabbatar da daidaito da maimaita matakan gwaji.

3. Fasalolin aminci

• Ikon Tsaro na zazzabi yana hana lalacewar kayan aiki da tabbatar da kariya ta afare.

• Tsarin rufewa na gaggawa na gaggawa kai tsaye zuwa yanayin aiki mara kyau.

Daidaitattun ka'idoji

Testerters na zamani suna haɗuwa da ka'idodi na duniya:

Aikace- aikace na	Buƙatun Aikace	-aikace
Astm D1238	Zazzabi ± 0.5 ° C, daidaitaccen mutu ya dace	Yanayin duniya
ISO 1133	Ingantaccen sarrafa zazzabi, tsayayyen lokaci	Takaddun shaida na Turai

Mai amfani-mai amfani

Gudanarwa

• Nunin dijital yana nuna zazzabi na gaske, matsa lamba, da ma'aunin gudana.

• Tsarin gwajin shirye-shirye na shirye-shirye yana maimaita hanyoyin gwaji.

• Shiga Laja mai sarrafa kansa yana kawar da kurakurai na ainihi.

Abubuwan da ke dogaro

• Tsarin bincike na kai gano matsaloli kafin gwaji ya fara.

• Tabbatar da inganci yana tabbatar da daidaito mai daidaitaccen ma'auni.

• Ingantaccen zazzabi yana kiyaye yanayin gwajin.

Hanyoyin aiki

1. Saitin kayan aiki

1. Madadin injin

• Sanya sashin gwaji a kan barga, m farfajiya don daidaitattun ma'auni.

• Daidaita ƙafafun ƙafa har sai mai nuna alama mai ban sha'awa yana nuna cikakkun jeri na kwance.

2. Tsarin dijital

• Tsawon gwajin shirin ta hanyar Tsarin Kulawa na Digital.

• Saita sigogin zafin jiki gwargwadon bukatun gwaji.

• Sanya taƙaitaccen bayanan bayanai don cikakken bincike.

3. Gudanar da Sensor

• Halittar RTD PTD PTD PTD PT-100 a cewar bayani dalla-dalla.

• Tabbatar da karatun zazzabi a kan daidaito matsayin nunawa na waje.

• Bayanin daidaituwa na daidaitawa don bayanan sarrafa inganci.

4. Tsarin ingantawa

• Sanya fasalin Auto-tuni don mafi kyawun yanayin zafin jiki.

• Saka saka idanu na tsarin yayin yawan lokuta.

• Tabbatar da yanayin aiki mai tsayayye kafin fara gwaji.

Binciken gwaji na gwaji

• [] Tsarin kayan aiki ta hanyar karatun mai nuna alama

• [] Zazzabin zazzabi ya samu a cikin yarda

• [] Kayan abu daidai da aka shirya yadda yakamata aka shirya

• [] Ana tsara sigogi na gwaji gwargwadon daidaitattun bukatun

SAURARA: Kulawa na yau da kullun yana tabbatar da aikin kayan aiki. Yi dadin duk hanyoyin daidaitawa.

MFI na cika polymers da kuma kayan aiki

Haɗin 'yan wasan masu yawa suna tasiri da ƙimar Polymer MFI. Fahimtar wadannan tasirin suna ba da damar mafi kyawun tsari na zaɓin tsari don cike tsarin polymer.

Binciken Tsarin Filer

Maido da fasali

1. Zare na gilashi

• Inganta kaddarorin kayan aikin injin yayin da muhimmanci rage polymer narke cerwararrun halaye.

• Yana buƙatar ikon sarrafa yanayin aiki don kula da amincin fiber.

2. M Karfe

• Inganta halayen da ake ciki amma haifar da halayen kwarara yayin aiki.

• Buƙatar madaidaicin yanayin zafin jiki daidai don hana agglomerations lokacin gwaji.

Ba a sake kunna filayen ba

1. Alli carbonate

• Yana rage farashin kayan abu yayin da yake shafar kayan kwarara a ƙarƙashin yanayin yanayi.

• Yana kunna tsari mai inganci ba tare da yin sulhu da halaye masu yawa ba.

2. Talc

• Yana daidaita kaddarorin farfajiya da kwanciyar hankali a cikin kayayyakin da aka gama.

• Tasirin halayyar polymer na polymer yayin ayyukan sarrafa.

Aiwatar da aiki

Babban mfi tushe

• Yana ba da ingantaccen watsawa a cikin matrix na polymer

• Bayar da ingantattun halaye na aiki a karkashin yanayin yanayi

• Kula da kayan da aka yarda da shi a mafi girman nauyin filler

Mfi bitar mfi

• Haifar da kalubale filler

• Na buƙatar sigogi na gyara don samar da ingantaccen tsari

• Nuna iyakataccen karɓuwa a karuwar farji na filler

Hygroscopic kayan sarrafawa

Danshi-m polymers

polymer rubuta	bushewa zazzabi (° C)	mafi girman danshi abun ciki
Nail	80-85	0.2%
Pet / pbt	120-140	0.02%
Abin da	80-85	0.1%
PC	120-125	0.02%

Abubuwan bushewa

1. Sarrafa zazzabi

• Aiwatar da yanayin bushewa daidai don hana lalata polymer yayin cire danshi.

• Kula da kayan aikin zazzabi a duk tsawon lokacin bushewa.

2. Ajiyan lokaci

• Kashe isasshen bushewa don cimma takamaiman matakan danshi matakan.

• Tabbatar matakan danshi kafin aiki don tabbatar da yanayin kayan aiki mafi kyau.

Tsarin kayan aiki

Sojan ruwa na hygroscopic

1. Filayen injiniya

• Polyamides suna buƙatar danshi iko don kula da tsarin ƙira yayin aiki.

• Polyesters nuna mahimman canje-canje a karkashin yanayin danshi iri-iri.

2. Polymers na fasaha

• Polycarbonates suna buƙatar bushewa sosai don hana lalata lalata yayin aiki.

• Acrylics nuna tsinkaye mai sanyi da ke shafar ingancin ingancin ƙasa da kayan aikin injin.

Ba-hygroscopic polymers

1. Rikicin kayayyaki

• Polyethylene yana kula da abubuwan da aka tsira ba tare da manyan buƙatun bushewa ba.

• Polypropylene yana nuna ƙarancin ɗaukar danshi a ƙarƙashin yanayin daidaitawa.

SAURARA: Tabbatarwar danshi na yau da kullun yana tabbatar da sakamakon sarrafa sarrafawa.

Mfi na polymers da aka sake amfani da polymer

Bukatar cigaban masana'antu ta haifar da ƙara yawan amfani da polymers a cikin sarrafa polymer. Koyaya, sake amfani da kayan aiki da kuma haɗawa na polymer na iya shafar narkewar frowx (MFI), wanda ke haifar da aikin kayan aiki da ƙarfin aiki.

Canjin MFI a lokacin sake sarrafawa

Lalata illa

1. Rage nauyi mai nauyi

• Damuwa na inji yayin sake amfani da sarƙoƙi na polymer, yana ƙaruwa gaba ɗaya ragi na ruwa.

• Fitar da Therrmal a lokacin da ake zargi da yanke hukunci game da darajar sarkar da lalata hanyoyin lalata kwayoyin halitta.

2. Canje-canje canje-canje

• Pet-Post-mai amfani da POM yana nuna ninka-mfi biyar idan aka kwatanta da kayan budurwa.

• Pyesgradable polyesterwareware ƙwarewar gyaran kayan mallakar da ke gudana yayin sake amfani da taɓar.

Dabarun canji na MFI

Fasahar fadama sarkar

1. Canjin sunadarai

• Sarkar sun yi kira sake gina kwayoyin kwayoyin ta hanyar mai yin aiki mai hawa mai zuwa.

• Musamman abubuwa suna ba da daidaitaccen daidaitawar mfi ɗin don buƙatun sarrafawa daban-daban.

2. Tsarin aiwatar da

   sarkar asali MFI → sarkar sarkar → gyara MFI babbar yawan kwarara → ƙwayoyin kwarara

Hanyar Inganta

Hanyar	MFI	Inganta
Sarkar tsawo	Rage mfi	Ingantattun kayan aikin injin
Peroxide Bugu da kari	Sarrafa mfi	Ingantaccen Tsarin aiki
Haske	Mfi	Aikace-aikacen-takamaiman kaddarorin

Polymer hade da halaye

Hadawar Virgin

1. Hukumar Ruwa

• Mafi girman abun ciki yana ƙaruwa mafi yawan ƙwayar ƙwayar mahimmanci.

• Strogic Vittin Bugu da kari yana taimakawa wajen kula da halaye na sarrafawa.

2. Sarrafa windows

• Mafi kyau duka cakuda daidaitawa da buƙatun aikin kayan aiki.

• Siffar da Gudanar da Gudanar da Canje-canje na MFI daban-daban a cikin kayan hade.

Matakan sarrafawa mai inganci

Gwajin ladabi

1. Kulawa na yau da kullun

• Aiwatar da tsarin gwajin mfi a cikin sake dawowa da hada-hadar.

• Alamar alama tana canzawa a cikin hanyoyin sarrafawa da yawa don tabbacin inganci.

2. Tabbatar da dukiya

• Kwatanta halaye da aka haɗa da ƙayyadadden bayanan da aka kafa akai-akai.

• Takardar MFI na MFI don ingantawa da sarrafa inganci.

Dabarun ingantawa

1. Zabin Abinci

• Allon sake amfani da kayan da ke dogaro da matakan nauyi da kuma lalata matakan.

• Zaɓi Polufi mai dacewa da haɗi don haɓakar ikon mallaka.

2. Sarrafawa

• Daidaita yanayin zafi don rage ƙarin tasirin lalata.

• Saka saka idanu kan yanayin karfi yayin hadawa da sarrafa ayyukan.

Ƙarshe

Narke kwarara (MFI) yana taka muhimmiyar rawa a cikin sarrafa polymer da kuma kulawa mai inganci. Yana taimaka wa masu kera zaɓi kayan da dama da ingantawa. Fahimtar dalilai waɗanda ke shafar MFI, kamar nauyin kwayoyin da sarrafawa, yana da mahimmanci don inganta ingancin samfurin. Daidaita ga waɗannan abubuwan suna tabbatar da sakamako mai mahimmanci yayin masana'antu.

Yin gwajin MFI a cikin hanyoyin gwajin polymer dinku shine mabuɗin don inganta ingancin samarwa. Yana tabbatar da cewa polymers sun hadu ka'idodi da kuma yin aiki sosai a aikace-aikacen duniya. Gwajin MFI na yau da kullun abu ne mai sauki zuwa mafi kyawun sarrafa polymer da amincin samfurin.

Takamatsu

Narke kwarara

PPS filastik

Filastik allurar motsa jiki