Melt flɔ indeks (MFI) ɛn polima prɔsesin .

Wetin mek polimεr dεm izi fכ shep εn prכsεs? Di ansa de na di mɛlt flɔ indeks (MFI). MFI de mɛzhɔ aw izi wan polima de mɛlt ɛn flɔ, we de ple impɔtant pat pan polima manufakchurin. I impɔtant fɔ pik di rayt we fɔ prosɛs ɛn mek shɔ se di prɔdak kwaliti. Insay dis post, yu go lan di fundamentals fɔ MFI, in impɔtants insay polima prɔsesin, ɛn aw i de impɔk di prɔdak pefɔmɛns. Wi go fɛn ɔda tin dɛn bak we de afɛkt MFI, we fɔ chenj am, ɛn aw dɛn de yuz am fɔ kɔntrol kwaliti.

Wetin na mɛlt flɔ indeks (MFI)?

Melt Flow Index (MFI) de sav as krichɔl kwaliti kɔntrol paramita we de mɛzhɔ polimɛr dɛn flɔabiliti ɔ mɛlt viskɔsiti. I de sho aw izi fɔ molten polimɛr dɛn de flɔ ɔnda spɛshal prɛshɔn ɛn tɛmpracha kɔndishɔn dɛn.

Ɔndastand MFI ɛn in mɛzhɔmɛnt .

MFI riprizent di mas flɔ rit we dɛn mɛzhɔ tru wan standad day ɔnda prɛskrib kɔndishɔn dɛn:

• difinishכn : di wet (in gram) fכ polimכr we de fכlכ tru wan spεsifi k day insay 10 minit .

• Di paramita dɛn fɔ tɛst :

• day dayamita ɛn lɔng (standad)

• prɛshɔn we dɛn aplay (weit) .

• Tempracha we dɛn kin kɔntrol .

MFI as Flɔ Prɔpati Indikɛtɔ .

MFI de kɔrɛlat dairekt to sɔm polima kwaliti dɛn:

1. Mɔlikul Prɔpati dɛn : .

• Avrej mɔlikul wet .

• Molikul weit distribushɔn .

• Chen branching ficha dɛn .

2. Di Biɛvhɔ fɔ Prɔses : .

• Shia viskɔsiti .

• day swel kwaliti dɛn .

• Elongeshɔn viskɔsiti .

• Melt trɛnk .

3. Aplikeshɔn Suitabiliti :

   Ay MFI (>10 g/10min) → Injɛkshɔn moldin mɛdiɔm MFI (2-10 g/10min) → Ɛkstrushɔn Lɔ MFI (<2 g/10min) → Blɔ moldin

Prinsipul fɔ MFI tɛst .

Di tɛst prɔses de fala standad prosidyuz dɛn we de mek shɔ se dɛn rili abop pan di rizɔlt dɛn:

1. Besik tɛst step dɛn :

• Hɛt polima to spɛsifikɛd tɛmpracha .

• Aplay standad weit .

• Measure Extruded Material Weight .

• Kalkul di flɔ ret .

2. Kritikal Paramita dɛn : .

• Di tɛmpracha kɔntrol (±0.5°C) .

• Weit prɛsishɔn .

• Akkurayt fɔ di tɛm we dɛn de mɛzhɔ di tɛm .

• Sampul pripiamɛnt .

3. Standart tɛst kɔndishɔn dɛn (ɛgzampul dɛn):

Polima tayp	tɛmpracha (°C)	lod (kg)
Polyethylene na di .	190	2.16
Polipropilɛn .	230	2.16
Polistayn .	200	5.0

Di we aw dɛn de du di tɛst impɔtants .

Akkurat MFI mɛzhɔmɛnt de aks fɔ strikt adherence to protɔkɔl dɛn:

• Konsistent Sampul Pripiamɛnt .

• Di rayt we fɔ yuz di Ikwipmɛnt Kalibreshɔn .

• Standart tɛst kɔndishɔn dɛn .

• Mentɛnans ɔltɛm .

• Skiled Operator teknik .

Wi rikɔmɛnd fɔ fala ISO 1133 ɔ ASTM D1238 standad fɔ rili rizɔlt. Dɛn prosidyuz ya de mek shɔ se dɛn ebul fɔ riprodyuz ɛn kɔmparabiliti akɔdin to difrɛn tɛst fasiliti dɛn.

Notis: MFI valyu dɛn de ɛp fɔ no di rayt we fɔ prosɛs ɛn di ɛnd aplikeshɔn dɛn. Ɔndastand MFI de mek di manifakta dɛn ebul fɔ optimize prodakshɔn paramita dɛn fayn fayn wan.

Rilayshɔn bitwin MFI ɛn Polima Prɔpati dɛn .

Di kɔrɛleshɔn bitwin MFI ɛn polima prɔpati dɛn pruv fondamental fɔ ditarmin prɔsesin mɛtɔd ɛn fayn prodak kwaliti dɛn. We dɛn ɔndastand dɛn rilayshɔn ya, dat de mek di wan dɛn we de mek dɛn tin ya ebul fɔ mek dɛn prodakshɔn prɔses dɛn wok fayn fayn wan fayn fayn wan.

MFI-Mɔlikul Weyt Kɔrɛleshɔn .

MFI de sho invas rilayshɔn to mɔlikul wet, we de fala wan ɛmpirikal ikwɛshɔn fɔ linya polimɛr dɛn:

Lɔg MW = 2.47 – 0.234 Lɔg MF

Usay:

• MW = Mɔlikul Weyt (Kdalton) .

• MF = mɛlt flɔ (standad kɔndishɔn dɛn)

Ki kɔrɛleshɔn dɛn:

• Di MFI valyu dɛn we ay pas di wan dɛn we gɛt lɔw mɔlikul wet polimɛr, we de gi izi prɔsesabiliti bɔt we kin ridyus di mɛkanikal prɔpati dɛn .

• Lכw MFI valyu dεm de sכgεst hכy mכlikul wεyt polimכr dεm, we de gi εnhans mεkanikal trεnk bכt we nid mכr intens prכsεsin kכndishכn dεm .

Molikul weit Distribushɔn Ifɛkt dɛn .

di distribushכn fכ di mכlikul wet dεm de infכlכw MFI bihayv tru sεvεra mεkanism dεm:

• Brod Distribushɔn : Polimɛr dɛn we de sho wayd mɔlikul wet rɛnj dɛn de sho kɔmpleks flɔ bihayvya, we de afɛkt dɛn prɔsesabiliti ɛn we nid fɔ tek tɛm kɔntrol di prɔsesin paramita dɛn fɔ ajɔst di bɛst rizɔlt dɛn.

• Narrow distribushɔn : matirial dɛn we gɛt tayt mɔlikul wet distribyushɔn dɛn sho mɔ prɛdiktibɛl flɔ kwaliti dɛn, we de ɛnabul prɛsis kɔntrol di tɛm we dɛn de prosɛs bɔt pɔtɛnɛshɛl fɔ limited dɛn aplikeshɔn versatility.

Viskɔsiti-MFI rilayshɔn .

Di invas rilayshɔn bitwin viskɔsiti ɛn MFI de sho tru bɔku tin dɛn:

1. TƐMPƐRATUƐR DIPENSIɛns : .

• Di tɛmpracha we ay pasmak de ridyus di viskɔsiti, di MFI we de go ɔp de go ɔp .

• Ɛni 10°C chenj tipikli modify MFI bay 20-30%

2. Shia ret effekts : .

• Inkris shia ret jεnarali lכw viskכsiti .

• Dis rilayshɔnship kin bi impɔtant tin fɔ mek dɛn ebul fɔ du ay-spid prɔsesin ɔpreshɔn .

Di we aw dɛn go yuz di we aw dɛn fɔ du am

Difrɛn prɔsesin tɛknik dɛn nid spɛshal MFI rɛnj fɔ optimal pefɔmɛns:

prɔsesin	mɛtɔd rɛkɔmɛnd MFI rɛnj (G/10min)	ki aplikeshɔn dɛn
Moldin fɔ injɛkshɔn .	8-20 na di .	Teknik pat dɛn, kɔntena dɛn .
Blow moldin na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na na	0.3-2.	bɔtul, kɔntena dɛn .
Ekstrushɔn .	2-8.	Films, sheet, prɔfayl dɛn
Fayba we de spin .	10-25 pipul dɛn.	Tekstil fayba, nonwovens

Prodakt-spɛsifi k aplikeshɔn dɛn .

MFI valyu dɛn signifyant inflɔws fayn fayn prɔdak kwaliti dɛn:

1. Ay MFI aplikeshɔn dɛn (>10 g/10min):

• Prɛsishɔn injɛkshɔn mold kɔmpɔnɛnt dɛn we nid intrikɛt mold filin kapabiliti dɛn de bɛnifit frɔm ay flɔabiliti, we de mek di manifakta dɛn ebul fɔ prodyuz kɔmpleks jɔyometri dɛn we dɛn de mentɛn tayt dimɛnshɔnal tolɛreshɔn dɛn.

2. Midul MFI Aplikeshɔn dɛn (2-10 g/10min):

• Ekstrud prodakt lεk film εn shit dεm de dimand bεlε fכ fכlכ prכpati, alaw kכnsistεnt prodakshכn rεt we de mεnten yunifom tiknes distribushכn akraos di prodakt wid.

3. LƆW MFI Aplikeshɔn dɛn (<2 G/10min):

• Blɔ mold kɔntena dɛn ɛn big strɔkchɔral pat dɛn nid fɔ gɛt fayn fayn mɛlt trɛnk, we go mek dɛn ebul fɔ mek di rayt we fɔ mek di parine ɛn mek dɛn nɔ ebul fɔ sag pasmak we dɛn de du di prɔsesin ɔpreshɔn.

Notis: Dɛn rɛnj ya de wok as gaydlayn. Speshal aplikeshɔn dɛn kin nid valyu dɛn we nɔ de na dɛn rɛnj dɛn ya bay we dɛn yuz di tin dɛn we dɛn fɔ yuz fɔ wok ɛn di tin dɛn we dɛn nid fɔ du fɔ mek di prɔdak.

Factors we de afɛkt di mɛlt flɔ indeks .

Di akkuracy ɛn rilaybiliti fɔ MFI mɛzhɔmɛnt dɛn dipen pan bɔku vɛriɔbul dɛn. כndastand dεn tin ya de mek dεn ebul fכ kכntrכl di prεsis kwaliti εn kכnsistεnt polimכr prכsεsin autkam dεm.

Tempratura Ifɛkt dɛn .

Tempracha signifyantli inflɔws MFI mɛzhɔmɛnt dɛn tru sɔm mɛkanism dɛn:

1. Viskositi chenj :

• hכy tεmprachכ dεm de dכn di polimכr mεlt viskכsiti, we de rizulta in inkrεs fכ fכlכ rεt εn hכy MFI valyu dεm, we de afekt mכlikul chen mobiliti εn polimכr strכkchכ stεbiliti di tεm we dεn de tεst prosidכs.

2. Molikul Mobiliti : .

• εlevεt tεmprachכ de εnhans polimכr chen muvmεnt, we de lid to rεdכks intanal frikshכn bitwin mכlikul chen dεm εn fכ fasilitεt izi fכ fכlכ tru di tεst day כnda standad lod kכndishכn dεm.

3. Digradishɔn risk : .

• Eksεsiv tεmpεratכr kin trigεr polimכr dεgradashכn, we kin mek pεrmanεnt mכlikul strכkchכ chenj εn prodyuz כnrilaybl MFI risכlt dεm we nכ rεprεsεnt fכ aktual mεtirial prכpati dεm.

Prɛshɔn Influɛns .

Prɛshɔn vɛryushɔn dɛn de impak MFI mɛzhɔmɛnt dɛn tru kɔmpleks riɔlɔjik biɛvhɔ:

1. Melt kompressibility : .

• Inkris prɛshɔn kɔndishɔn dɛn kɔmprɛs polima mɛlt, chenj dɛn apɔrint viskɔsiti ɛn flɔ kwaliti dɛn we dɛn de tɛst, we kin afɛkt MFI mɛzhɔmɛnt akkuracy.

2. Flɔ Biɛvhɔ : .

• hכy prεshכn dεm de modify polimכr chen כryenteshכn εn pak dεnsiti, we de infכlכw mεtirial fכ fכlכ patεn tru di tεst di day εn afekt di fayn MFI kכlkyulyushכn dεm.

Sampul pripiamɛnt impak .

Prɔpa sampul pripiamɛnt pruv se i impɔtant fɔ mek dɛn no di MFI kɔrɛkt wan:

1. Moisture Control : .

• Hygroscopic polimεr dεm nid fכ drεy fayn fayn wan bifo dεn tεst, as rεsidyu mכsichכ kכntεnt de afekt fכ fכm bihayv sכmtεm εn i de lid to inkכnsistεnt MFI mεjεmεnt dεm.

2. Fizik Kɔndishɔn : .

• Sampul yunifɔmiti, inklud patikyula saiz distribyushɔn ɛn kɔmpakshɔn stet, de inflɔws mɛlt bihayvya ɛn flɔ karakta dɛn di tɛm we dɛn de du MFI tɛst prosidyuz.

Adjɔstmɛnt fɔ tɛst di paramita dɛn .

Tempracha kɔntrol protɔkɔl dɛn .

Implimɛnt fɔ strikt tɛmpracha manejmɛnt:

• Kalibreshɔn Rikwaymɛnt dɛn : .

• Rigyul temperechur sensor kalibreshɔn de mek shɔ se mɛzhɔmɛnt akkuracy insay ±0.5°C fɔ spɛsifikɛd tɛst kɔndishɔn, mentɛn rizɔlt rilaybiliti akɔs maltipul tɛst sɛshɔn dɛn.

• thermal equilibrium : .

• Adekwat prɛ-hit tɛm de alaw yunifom tɛmpracha distribyushɔn ɔlsay na di tɛst barɛl, we de mek dɛn nɔ gɛt lokaliz ɔt spat ɔ kol rijyɔn dɛn we de afɛkt di flɔ mɛzhɔmɛnt dɛn.

Prɛshɔn standadizayshɔn .

Mentɛn kɔnsistɛns prɛshɔn kɔndishɔn:

standad	prɛshɔn rɛnj (kg)	tɛmpracha rɛnj (°C)
ASTM D1238	2,16 - 21,6.	190 - 300
ISO 1133 na di .	2,16 - 21,6.	190 - 300

Sampul Kwaliti Assurans .

Impɔtant tin dɛn fɔ pripia fɔ du:

1. Di tin dɛn we dɛn fɔ du bifo dɛn tɛst dɛn :

• Impliment komprehensiv sampul inspekshɔn protɔkɔl dɛn we de aydentify kɔntaminɛnt, mɔstɔ kɔntinyu, ɛn patikyula saiz distribyushɔn bifo dɛn kɔndɔkt MFI mɛzhɔmɛnt ɔnda standad kɔndishɔn.

2. Material kondishɔn : .

• Eksekyutiv prɔpa drying saykl dɛn we de fala di manifakta spɛsifikɛshɔn dɛn, monitɔrin tɛmpracha ɛn tɛm paramita dɛn fɔ ajɔst di optimal mɔstɔ rimobul we nɔ de degrading polimɛr prɔpati dɛn.

3. Teknik fɔ lod : .

• Praktis tek tɛm sampul introdukshɔn mɛtɔd dɛn we de minimiz ɛya ɛntrapmɛnt ɛn mek shɔ se yunifom kɔmpakshɔn insay di tɛst barɛl fɔ gɛt riprodyuz MFI rizɔlt dɛn.

Melt Flow Index Testing Ekwipmɛnt ɛn Stɛndad dɛn .

Mɔdan MFI tɛst ikwipmɛnt de kam togɛda wit prɛsishɔn mɛzhɔmɛnt kapabiliti ɛn yuz-frenli ɔpreshɔn. Advans ficha dɛn de mek shɔ se dɛn gɛt kwaliti kɔntrol we dɛn kin abop pan tru standad tɛst prosidyuz dɛn.

Ikwipmɛnt Ɔvaviu .

Di Presto MFI tɛstamɛnt ɛgzampul fɔ di mɔdan tɛst kapabiliti dɛn:

1. Kontrol sistem dɛn .

• Maykroprosɛsɔ-bɛs ɔpreshɔn dɛn de mek dɛn ebul fɔ gɛt prɛsis tɛmpracha ɛn prɛshɔn kɔntrol ɔlsay na di tɛst saykl dɛn.

• Dijital intafeys de gi rial-taym monitarin fɔ krichɔl tɛst paramita ɛn rizɔlt.

2. Di tin dɛn we dɛn fɔ mɛzhɔ .

• Ɔtomɛtik data kɔlɛkshɔn sistem dɛn rikodɔ ɛn analayz tɛst rizɔlt fɔ kwaliti ɛshyurishɔn.

• Integreted kalibreshɔn protɔkɔl dɛn de mek shɔ se dɛn de mɛzhɔ akkurayt ɛn ripitabiliti akɔdin to tɛst dɛn.

3. Di tin dɛn we de mek pɔsin nɔ gɛt prɔblɛm .

• Tempracha sefty kɔntrol dɛn de mek di ikwipmɛnt dɛn nɔ pwɛl ɛn mek shɔ se di wan dɛn we de wok de protɛkt dɛn.

• Imejɛnsi shutdɔwn sistɛm dɛn kin ansa wantɛm wantɛm to abnɔmal ɔpreshɔn kɔndishɔn dɛn.

Standards Kɔmplians .

Mɔdan tɛstamɛnt dɛn mit strɔng intanashɔnal standad dɛn:

standad	rikwaymɛnt	aplikeshɔn dɛn
ASTM D1238	Tempracha ±0.5°C, Standart dimensions de 10.5 ° C.	Globɛl Manufakchurin .
ISO 1133 na di .	Enhansed temperechur kɔntrol, strikt tɛm .	Yuropian Sɛtifikeshɔn .

Di tin dɛn we pɔsin kin yuz fɔ yuz di wɛbsayt

Kontrol intafeys .

• Dijital displei de sho rial-taym tɛmpracha, prɛshɔn, ɛn flɔ mɛzhɔmɛnt.

• Programmable Test Parameters Streamline ripit tɛst prosidyuz.

• Awtomat data log de pul di mistek dɛn we dɛn mek wit manual rikodin.

Rilaybiliti ficha dɛn .

• Self-diagnostic systems de aydentify potential ishu bifo test bigin.

• Kalibreshɔn verifyeshɔn de mek shɔ se kɔnsistɛns mɛzhɔmɛnt akkuracy.

• Tempracha stebilizayshɔn de mentɛn prɛsis tɛst kɔndishɔn dɛn.

Di we aw dɛn de du di wok .

1. Ikwipmɛnt Sɛtup .

1. Mashin Pozishɔn fɔ .

• Put di tɛst yunit pan wan stebul, vaybreshɔn-fri say fɔ kɔrɛkt mɛzhɔmɛnt.

• Adjɔst di lɛvɛl we dɛn de lɛvɛl te di bɔbul indikɛtɔ sho pafɛkt ɔrizɔntal alaynɛshɔn.

2. Dijital Kɔnfigyushɔn .

• Program tɛst durayshɔn tru di dijital intafɛs kɔntrol panɛl.

• Set tempɔret paramita dɛn akɔdin to matirial tɛst rikwaymɛnt dɛn.

• Konfigyuret data kɔlɛkshɔn intaval fɔ kɔmprɛhɛnsif rizɔlt analisis.

3. Sensor manejmɛnt .

• Kalibrayt RTD PT-100 sensa akɔdin to di manifakta spɛsifikɛshɔn dɛn.

• Verifay di tempɔret ridin dɛn agens kalibrayt ɛksternal rɛfrɛns standad dɛn.

• Dokumɛnt kalibreshɔn rizɔlt fɔ kwaliti kɔntrol rɛkɔd dɛn.

4. Sistem Optimayzeshɔn .

• Enable auto-tune ficha fɔ optimal tempɔret kɔntrol pefɔmɛns.

• Monitor sistem rispכns durin initial hεt fεz.

• Verifay stebul opareshɔn kɔndishɔn bifo yu bigin tɛst.

Di chɛklist we dɛn dɔn chɛk bifo tɛm .

• [ ] Ikwipmɛnt lɛvɛl we dɛn dɔn chɛk tru bɔbul indikɛtɔ ridin dɛn .

• [ ] tempɔret stebilizayshɔn we dɛn ajɔst insay spɛsifikɛd tolɛreshɔn dɛn .

• [ ] Sampul matirial we dɛn pripia fayn fayn wan ɛn we dɛn dɔn kɔndishɔn fayn fayn wan .

• [ ] tɛst paramita dɛn we dɛn dɔn kɔnfigyut akɔdin to standad rikwaymɛnt dɛn .

Notis: Rigyul mentenɛns de mek shɔ se kɔnsistɛns ikwipmɛnt pefɔmɛns de. Dokumɛnt ɔl di kalibreshɔn prosidyuz dɛn.

MFI fɔ ful-ɔp polimɛr ɛn kɔmpɔzit dɛn .

Di inkorporeshɔn fɔ filla dɛn rili inflɔws polima MFI valyu dɛn. We wi ɔndastand dɛn ifɛkt ya, i de mek wi ebul fɔ pik di bɛst prɔsesin paramita fɔ sɛlɛkshɔn fɔ ful-ɔp polima sistem dɛn.

Filla impak analisis .

Di fil dɛn we de mek pipul dɛn gɛt mɔ trɛnk .

1. Glass Fayba .

• Enhans mεkanikal prכpati dεm we de sכmtεm dεkrεs di polimכr mεlt fכ fכlכ kכntribyushכn dεm.

• I nid fɔ tek tɛm kɔntrol di we aw dɛn de prosɛs di tɛmpracha fɔ mek dɛn kɔntinyu fɔ gɛt fayv lɔng intɛgriti.

2. Metal pauda dɛn .

• Impruv thermal conductivity bɔt i de mek kɔmpleks flɔ bihayvya di tɛm we dɛn de prosɛs.

• Dimans prɛsis tɛmpracha kɔntrol fɔ mek patikyula agglomɛreshɔn nɔ apin we dɛn de tɛst.

Fil dɛn we nɔ de riinfɔs .

1. Kalsiɔm kabɔnɛt .

• Ridyus matirial kɔst dɛn we de afɛkt mɔdaret flɔ prɔpati dɛn ɔnda standad kɔndishɔn dɛn.

• Enables cost-effective formulation without siriכs kכmprכmis prכsεsin kכntribyushכn.

2. TALK

• Modifying surface prɔpati ɛn dimɛnshɔnal stebiliti insay finish prodak.

• Influwens polima kristalizashɔn bihayvya di tɛm we dɛn de du prɔsesin ɔpreshɔn.

Di tin dɛn we dɛn fɔ tink bɔt .

High MFI Base Polima dɛn .

• Enable effektiv filla dispershon truutout di polimer matrix

• Gi impɔtant prɔsesin kwaliti dɛn ɔnda standad kɔndishɔn dɛn .

• Mentɛn akseptabl flɔ prɔpati dɛn na ay filla lod dɛn .

Low MFI Base Polima dɛn .

• Rizult in chalenj filla dispershon proses .

• Rikways modifyed prɔsesin paramita fɔ ifektiv prodakshɔn .

• Show limited kompitibiliti na inkris filler konsantreshon .

Hygroscopic Materials Management .

Moisture-sensitiv polimεr dεm

polimכr tayp	drying tεmprachכ (°C)	Maksimal mכsichכr kכntεnt
Naylon .	80-85 pipul dɛn bin de.	0.2%
Pet/PBT .	120-140 na di	0.02%
ABS na ABS	80-85 pipul dɛn bin de.	0.1%
PC .	120-125 pipul dɛn.	0.02%

Di tin dɛn we dɛn nid fɔ du fɔ mek dɛn nɔ drɛy .

1. Tempracha kɔntrol .

• Impliment prɛsis drying tempɔret fɔ mek dɛn nɔ gɛt polimɛr dɛgradishɔn we dɛn de pul di mɔstɔ.

• Monitor matirial temperechur truutout di entire drying cycle process.

2. Taym Manejmɛnt .

• Eksekyutiv sufayf drying durayshɔn fɔ ajɔst di spɛsifikɛd mɔstɔ kɔntinyu lɛvɛl dɛn.

• Verifay di mɔstɔ lɛvɛl bifo yu prosɛs fɔ mek shɔ se di bɛst matirial kɔndishɔn dɛn.

Material Klasifikɛshɔn .

hygroscopic polimεr dεm .

1. Enjinia Plastik dɛn .

• Poliamides nid fɔ tek tɛm kɔntrol di mɔstɔ fɔ mek dɛn kɔntinyu fɔ gɛt strɔkchɔral intɛgriti we dɛn de prosɛs.

• Poliɛsta dɛn de sho big big chenj dɛn na di prɔpati ɔnda difrɛn mɔstɔ kɔndishɔn dɛn.

2. Teknik Polima dɛn .

• Polikabonayt nid fɔ drɛy gud gud wan fɔ mek di haydrolaytik nɔ dɛgradishɔn we dɛn de prosɛs.

• Akriliks sho moisture sensitivity we de afekt di surface kwaliti en mekanik propati.

Non-Hygroscopic polimεr dεm .

1. Kɔmwɔd Plastik dɛn .

• Polyethylene de mentɛn stebul prɔpati dɛn we nɔ gɛt bɔku bɔku drying rikwaymɛnt dɛn.

• Polypropylene sho minimal moisture absorpshon anda standad kondishon.

Notis: Rigyul mɔstɔ kɔntinyu verifyeshɔn de mek shɔ se kɔnsistɛns prɔsesin rizɔlt dɛn de.

MFI fɔ risaykul polimɛr ɛn polima blɛnd dɛn .

Di diman we de gro fɔ sataynabul manufakchurin dɔn mek dɛn yuz mɔ polima dɛn we dɛn dɔn risaykul insay polima prɔsesin. Bɔt, mɛkanikal risaykul ɛn polima blɛndin kin rili afɛkt di mɛlt flɔ indeks (MFI), we de impɔk matirial pefɔmɛns ɛn prɔsesin efyushɔn.

MFI chenj dɛn we dɛn de risaykul .

Digradishɔn ifɛkt dɛn .

1. Molekyular weit ridyushɔn .

• mεkanikal strεs di tεm we dεn de risaykul brεk polimεr chen dεm, we de inkrεs di כvala mεlt fכ fכlכ rεt.

• tεmכl εkspכzכn di tεm we dεn de rεprosεs de aksεlεrat chen sכshכn εn mכlikul dεgradashכn prכsεs dεm.

2. Di chenj dɛn we dɛn mek na di prɔpati .

• Pɔst-kɔnsuma PET sho fayv-fol MFI inkris kɔmpia to vajin matirial.

• Bayodegradabl polyesters de ɛkspiriɛns signifyant flɔ prɔpati modifyeshɔn dɛn we dɛn de du risaykul saykl.

MFI modifyeshɔn strateji dɛn .

Chen Ekstenshɔn Tɛknɔlɔji .

1. Kεmikכl modifyushכn .

• Chen ekstenda dεm de ribild mכlikul wet tru riaktiv prכsεsin mεkanism dεm.

• Speshal aditiv dɛn de ɛnabul targeted MFI ajɔstmɛnt fɔ difrɛn prɔsesin rikwaymɛnt dɛn.

2. Proses Implimentishɔn

   Ɔrijinal MFI → Chen Ɛkstenda Adishɔn → Mɔdify MFI Ay Flɔ Rɛt → Mɔlikul Weyt Inkris → Kɔntroled Flɔ Prɔpati dɛn

Pɔfɔmɛnshɔn Ɛnhansmɛnt

Mɔdifikeshɔn Mɛtɔd	MFI Impɛkt	Aplikeshɔn Bɛnifit dɛn
Chen ɛkstenshɔn .	Dikris MFI .	Impɔtant Mɛkanikal Prɔpati dɛn .
Di adishɔn we dɛn ad pan pɔrokayd .	MFI kɔntrol .	Enhansed prɔsesin stebiliti .
Blend optimayzeshɔn .	Di MFI we dɛn dɔn tɔk bɔt .	Aplikeshɔn-spɛsifi k prɔpati dɛn .

Polima Blɛnd Karakta dɛn .

Virgin-recycled kɔmbaynshɔn dɛn .

1. Blend Ratios .

• Di ay risaykul kɔntinyu de inkrisayz di ɔvalayn mɛlt flɔ rit siriɔs wan.

• Stratejik Virgin matirial adishɔn de ɛp fɔ mentɛn di prɔsesin kwaliti dɛn we dɛn want.

2. Di winda dɛn we de prosɛs .

• Optimal blend kompozishun balans prosesabiliti en prodakt pefomans rikwaiment.

• Modifyed prɔsesin paramita dɛn akɔmod difrɛn MFI lɛvɛl dɛn na blɛnd matirial dɛn.

Kwaliti Kɔntrol Mɛzhɔ .

Testing Protokɔlɔ dɛn .

1. Monitoring we dɛn kin du ɔltɛm .

• Impliment sistamat MFI testing truutout di risaykul en blending proses.

• Trak prɔpati chenj dɛn akɔdin to bɔku bɔku prɔsesin saykl dɛn fɔ kwaliti ɛshyurishɔn.

2. Prɔpati Vɛrifikɛshɔn .

• Kɔmpia blɛnd kwaliti dɛn agens di established prodak spɛsifikɛshɔn dɛn ɔltɛm.

• Dokumɛnt MFI modifyeshɔn fɔ prɔses ɔptimayzeshɔn ɛn kwaliti kɔntrol.

Optimayzeshɔn strateji dɛn .

1. Di we aw dɛn de pik di tin dɛn we dɛn dɔn yuz

• Skrin inkam risaykul matiryal bays pan molkyular wet ɛn digradishɔn lɛvɛl.

• Selekt kompitibul Virgin polimεr fכ ifektiv blεnd prכpati kכntrכl.

2. Prɔses Kɔntrol .

• Adjɔst di prɔsesin tɛmpracha fɔ minimiz di ɔda tɛmal dɛgradɛshɔn ifɛkt dɛn.

• Monitor shia kondishɔn dɛn di tɛm we dɛn de kɔmpawnd ɛn prɔsesin ɔpreshɔn.

Dɔn

Melt Flow Index (MFI) de ple wan impɔtant pat pan polima prɔsesin ɛn kwaliti kɔntrol. I de ɛp di wan dɛn we de mek di tin dɛn fɔ pik di rayt tin dɛn ɛn mek di prodakshɔn wok fayn. Fɔ ɔndastand tin dɛn we de afɛkt MFI, lɛk mɔlikul wet ɛn prɔsesin kɔndishɔn, impɔtant fɔ mek di prɔdak kwaliti bɛtɛ. Fɔ ajɔst fɔ dɛn tin ya de mek shɔ se dɛn gɛt kɔnsistɛns rizɔlt dɛn we dɛn de mek.

Inkorpɔret MFI tɛst insay yu polima tɛst prosidyuz na di ki fɔ ɛnhans prodakshɔn efyushɔn. I de mek shɔ se polimɛr dɛn mit di standad dɛn we dɛn nid ɛn du fayn fayn wan insay rial-wɔl aplikeshɔn dɛn. Rigyul MFI tɛst na simpul step fɔ bɛtɛ polimɛr prɔsesin ɛn prodak rilaybiliti.

Rifrɛns Sɔs dɛn .

Melt Flɔ Indeks .

PPS plastic .

Plastik injɛkshɔn moldin .