I-MQ Resin: Methyl/Phenyl & Mw Impact PSA Adhesion

I-Jiangsu Aokai New Materials , umkhiqizi ohamba phambili we-PTFE itheyiphu yokushisa okuphezulu, ikunikeza ukuhlaziywa kobuchwepheshe okuchwepheshile.

I-polarity, isithiyo esiqinile samaqembu ezinto eziphilayo kanye nesakhiwo sokuhlanganisa samaketanga wamangqamuzana ku-MQ silicone resin yizici ezibalulekile zokulawula ibhalansi yokusebenza kwe-silicone ezwela ukucindezela okunamathelayo (PSA) .Ngamafuphi: okuqukethwe kwe-phenyl okwandayo kuthuthukisa i-tack yokuqala, ukubamba amandla namandla e-peel ngesikhathi esisodwa; kuyilapho isisindo samangqamuzana nokusatshalaliswa kwesisindo se-molecular kulandela umthetho ojwayelekile we-seesaw - isisindo se-molecular ephakeme sithuthukisa amandla okubamba kodwa sidela i-tack yokuqala; ukusabalalisa okubanzi kwesisindo samangqamuzana kuyindlela ephumelelayo yokulinganisa izici ezintathu ezibalulekile zokunamathela.

1. Isilinganiso se-Methyl / Phenyl: Ukulungiswa Kokusebenza Kwangaphakathi Ngesakhiwo Sekhemikhali

Ukushintsha ingxenye yamaqembu e-methyl (-CH3) ngamaqembu e-phenyl (-C6H5) kuyindlela ephumelelayo yokuguqula izinga lamangqamuzana:

·  Amandla e-intermolecular athuthukisiwe : Indandatho ye-benzene ikhiqiza ukusebenzisana okuqinile kwe-π-π intermolecular, ikhuphula kakhulu amandla okunamathelayo okunamathelayo, okuthuthukisa ngokuyisisekelo amandla okubamba namandla okuxebula.

·  Ukwanda kokuqina kweketango lamangqamuzana : Amaqembu e-Phenyl anesithiyo esikhulu se-steric, esikhawulela ukuzungezisa kwamaketanga ayisikhonkwane ayinhloko kanye nokunciphisa ukuguquguquka kweketango. Lokhu kuzuzisa ukubamba amandla kodwa kuvame ukwenza buthaka i-tack yokuqala.

·  Ukumanzisa okuthuthukisiwe : Ukuguqulwa kwe-Phenyl kuthuthukisa ukuhlobana kwe-silicone PSA endaweni engaphansi, kuthuthukise ukuhlangana kobuso, futhi kuthuthukisa kokubili amandla okuqala okubamba kanye namandla.

2. Isisindo se-Molecular & Distribution: Ukulawulwa Kokusebenza Nge-Physical Entanglement & Aggregation State

Amaqembu asebenzayo abusa ukulawulwa kwamakhemikhali , kuyilapho isisindo samangqamuzana nokusatshalaliswa kwesisindo samangqamuzana (I-Polydispersity Index, PDI) ibusa ukulawulwa ngokomzimba :

Isisindo samangqamuzana (Mw)

Amandla ahlangene ngokuyinhloko avela ekuthandeni ngokomzimba kwamaketanga e-polymer.

·  I-Mw Ephakeme yakha inethiwekhi enamathelayo futhi ithuthukisa ngokuphawulekayo amandla okubamba.

·  Ukuphakama ngokweqile kwe-Mw kwenza amaketanga amangqamuzana aqine futhi angaguquguquki kancane, okuholela ekwehleni kokuqina kokuqala kanye namandla okuxebula.

I-Molecular Weight Distribution (MWD)

·  Ukusabalalisa okuwumngcingo : Ukusebenza okufanayo, ukulungiselelwa okulula okuqondiswe kusakhiwo esisodwa esifana ne-tack yokuqala ephezulu.

·  Ukusabalalisa okubanzi : Ukufanisa ukusebenza okuhambisanayo. Ama-fractions anesisindo esikhulu samangqamuzana akha uhlaka lwamathambo enethiwekhi oluqinile ukuze kuqinisekiswe amandla ahlangene kanye namandla okubamba; ama-fractions anesisindo esiphansi samangqamuzana asebenza njengamafutha angaphakathi nama-accelerator okumanzisa, athuthukisa ukuhamba kwamaketanga kanye nokumanzisa okushesha kwendawo ukuze kuqinisekiswe ukulandelwa okuhle kokuqala, kuzuzwe ukusebenza okulinganiselwe okuphelele.

3. I-Synergistic Optimization ye-M/Q Ratio, I-Resin Dosage kanye ne-Silicone Rubber Viscosity

Isilinganiso se-methyl/phenyl nesisindo samangqamuzana sinquma izakhiwo ezingokwemvelo ze-MQ resin; kuyilapho isilinganiso se-M/Q, isilinganiso se-resin kuya ku-silicone yerabha kanye ne-viscosity yerabha ye-silicone kuyimingcele yokulungisa eqondile kubunjiniyela befomula, okumele ifaniswe ngokuvumelana.

Isilinganiso se-M/Q

Isilinganiso se-M/Q sinquma ngokuqondile isisindo sengqamuzana, okuqukethwe kwe-hydroxyl nokuhambisana nerabha ye-silicone.Isilinganiso esiphezulu se-M/Q semolari ye-silicone PSA ngokuvamile singu -0.6 ~ 1.2 .Ngokwesibonelo, i-PSA yezinga lezokwelapha ithatha inani eliphelele le-M/Q elingaba ngu-0.78; i-resin ene-M/Q 0.6–0.9 ehlanganiswe nerabha ye-silicone (i-viscosity 100×10⁻⁴ m²/s) ngesilinganiso sesisindo esingu-2:3 ithola ukusebenza okuhle kakhulu okunamathelayo.

I-Resin / Silicone Rubber Blending Ratio

Lesi silinganiso siyisihluthulelo sokulinganisa izici ezintathu eziyinhloko (i-tack yokuqala, amandla okubamba, amandla e-peel).

·  Okuqukethwe kwe-resin ephakeme kuthuthukisa ukubumbana, ukubamba amandla namandla acwecwayo kodwa kunciphisa ukuthintana kokuqala.

·  Okuqukethwe kwerabha ephakeme kubonisa ukuthambekela okuphambene.

Isibonelo, ukukhuphula isilinganiso sesisindo se-MQ resin kuya ku-107 irabha abicah kusuka ku-1.2 kuya ku-2.5 kuzokhuphula amandla okubamba kanye namandla e-peel angu-180 ° ngenkathi kuncipha ekuqaleni. Ekwenziweni okusebenzayo, isilinganiso sesisindo se-silicone resin nerabha ye-silicone ngokuvamile singu -45:55 ~ 75:25..

I-Silicone Rubber Viscosity

Isisindo samangqamuzana esiboniswa yi-viscosity sinquma izici eziyisisekelo ze-rheological zesistimu yokunamathisela futhi idinga ukuhambisana okuhle ne-MQ resin.Irabha ye-silicone ye-Low-viscosity inokuhambisana kangcono ne-MQ resin, evumayo ekuqaleni kokuqala namandla acwecwayo, kodwa ingase ibeke engcupheni amandla okubamba.

4. Isimiso Sokuklama Ifomula Yebhalansi Yokusebenza

Ekwakhiweni kokwakheka kwe-silicone PSA, izinkomba ezintathu ezibalulekile - i-tack yokuqala, amandla okubamba, amandla we-peel angu-180 °  - zingalawulwa ngokunembile ngezindlela ezimbili eziyinhloko:

·  Ukuguqulwa kwe-Phenyl — ukwenza okuphindaphindekayo : I-phenyl doping efanele ithuthukisa izici ezintathu ngesikhathi esisodwa, kwephula umkhawulo ovamile we-seesaw.

·  Isisindo samangqamuzana nokulungiswa kokusabalalisa — ukuhwebelana okungeziwe : Ukulawulwa okunembile kwesisindo semolekyuli nokusabalalisa kuthola ibhalansi eyenziwe ngokwezifiso phakathi kokuthinta kokuqala nokubamba amandla ezimo zohlelo lokusebenza ezihlukene.

Emkhiqizweni wezimboni, isu lefomula elivamile yi- resin eyisisekelo yokusabalalisa isisindo samangqamuzana kanye nokuguqulwa kwe-phenyl okusesilinganisweni  ukuze ibhalansise ukucutshungulwa kanye nokusebenza okunamathelayo okuphelele.Ngokumelana nokushisa okuphakeme kakhulu kanye nezindawo zamakhemikhali ezinokhahlo, i-MQ resin ephezulu-phenyl iyisixazululo esithandwayo.

Okuqukethwe okungenhla kobuchwepheshe kunikezwa i- Jiangsu Aokai New Materials Technology Co., Ltd.

Uma ufuna ukwazi imingcele enemininingwane, izimo zohlelo lokusebenza kanye nezixazululo ezenziwe ngokwezifiso zomugqa wethu womkhiqizo ogcwele: Indwangu ye-PTFE yokushisa okuphezulu, itheyiphu ye-PTFE yokushisa ephezulu, ibhande le-mesh lokushisa eliphezulu le-PTFE, ibhande lomshini wokuhlanganisa elingenamthungo, indwangu ye-PTFE enohlangothi olulodwa, ibhande eliphikisayo lokushisa eliphezulu, sicela uxhumane nathi kwi-fiberglass

·  UMnu Guo: +86 18944819998

·  UMnu. Liu: +86 13705266308

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