MQ Resin: Methyl / Phenyl & Mw Ŋusẽkpɔɖeamedzi PSA Adhesion

Jiangsu Aokai New Materials , si nye PTFE ƒe dzoxɔxɔ gã ƒe kasɛt wɔla xɔŋkɔ aɖe, naa mɔ̃ɖaŋu ŋuti numekuku bibiwo wò.

The polarity, steric mɔxenu na organic ƒuƒoƒowo kple aggregation wɔwɔme molecule kɔsɔkɔsɔwo le MQ silicone resin nye nu vevitɔwo be woaɖɔ dɔwɔwɔ dadasɔ le silicone nyaƒoɖeamenu-sensitive adhesives (PSA).Kpuie ko la: dzidziɖedzi phenyl agbɔsɔsɔme optimizes gbãtɔ tack, léle ŋusẽ kple peel ŋusẽ le ɣeyiɣi ɖeka me; esime molecule ƒe kpekpeme kple molecule ƒe kpekpeme mama zɔna ɖe seesaw ƒe se si bɔ dzi — molecule ƒe kpekpeme si lolo wu nana ŋusẽ si léa nu nyona ɖe edzi gake etsɔa tack gbãtɔ saa vɔe; molecule ƒe kpekpeme mama si keke ta nye mɔ nyui aɖe si dzi woato ada asɔ le nu vevi etɔ̃ siwo wotsɔ léa nu ɖe ​​nu ŋu la me.

1. Methyl / Phenyl Ratio: Dɔwɔwɔ ƒe Asitɔtrɔ le ememe to atikewo ƒe wɔwɔme dzi

Methyl ƒuƒoƒo (-CH3) ƒe akpa aɖe ɖɔliɖɔli kple phenyl ƒuƒoƒo (-C6H5) nye molecule ƒe tɔtrɔ ƒe mɔnu nyui aɖe:

·  Molekyulãwo dome ŋusẽ si dzi ɖe edzi : Benzene ƒe asigɛa naa π-π molecule dome kadodo sesẽ, si doa ŋusẽ si léa nu ɖe ​​nu ŋu ƒe ɖekawɔwɔ ɖe dzi ŋutɔ, si naa ŋusẽ si léa nu ɖe ​​te kple eƒe lãgbalẽ ƒe ŋusẽ nyona ɖe edzi ŋutɔ.

·  Molekyulã kɔsɔkɔsɔ ƒe sesẽme dzi ɖe edzi : Phenyl ƒuƒoƒowo ƒe steric mɔxenu gã aɖe le wo si, si xea mɔ na silicone kɔsɔkɔsɔ veviwo ƒe tɔtrɔ eye wòɖea kɔsɔkɔsɔ ƒe asitɔtrɔ dzi kpɔtɔna. Esia ɖea vi na ŋusẽ léle ɖe asi gake edina be yeagbɔdzɔ tack gbãtɔ.

·  Wettability si nyo wu : Phenyl ƒe tɔtrɔ doa ŋusẽ silicone PSA ƒe lɔlɔ̃ ɖe substrate ƒe anyigba dzi, doa interfacial bonding ɖe ŋgɔ, eye wònaa tack gbãtɔ kple peel ƒe ŋusẽ siaa nyona ɖe edzi.

2. Molekyul Kpekpeme & Mama: Dɔwɔwɔ ƒe Ðoɖowɔwɔ to Ŋutilã me Entanglement & Aggregation Nɔnɔme

Dɔwɔhawo ɖua atikewo ƒe ɖoɖowɔwɔ dzi , esime molecule ƒe kpekpeme kple molecule ƒe kpekpeme mama (Polydispersity Index, PDI) ɖua ŋutilã ƒe ɖoɖowɔwɔ dzi :

Molekyulã ƒe Kpekpeme (Mw) .

Ŋusẽ si wotsɔ blaa nu ɖekae la tsoa polymer kɔsɔkɔsɔwo ƒe ŋutilã me ƒoƒo ɖe wo nɔewo ŋu gbɔ koŋ.

·  Mw si kɔkɔ wu wɔa entanglement network si le kpekpem wu eye wònaa ŋusẽ si léa nu léle ɖe asi nyona ɖe edzi ŋutɔ.

·  Mw si sɔ gbɔ akpa nana molecule kɔsɔkɔsɔwo sesẽna eye womete ŋu trɔna bɔbɔe o, si wɔnɛ be tack kple peel ƒe ŋusẽ dzi ɖena kpɔtɔna le gɔmedzedzea me.

Molekyulãwo ƒe Kpekpeme Mama (MWD) .

·  Narrow mama : Dɔwɔwɔ ɖeka, bɔbɔe taɖodzinu optimization na ɖeka nunɔamesi abe kɔkɔ gbãtɔ tack.

·  Broad distribution : Dɔwɔwɔ ƒe sɔsɔ ɖekae. Nu suesuesue siwo ƒe kpekpeme lolo wɔa network ƒe ƒunukpeƒe sesẽ aɖe be wòana ŋusẽ si le wo nɔewo ŋu kple ŋusẽ si léa nu la nakpɔ kakaɖedzi; nu suesuesue siwo ƒe molecule ƒe kpekpeme mede o wɔa dɔ abe ami siwo le eme kple tsidzadza kabakaba ene, si wɔnɛ be kɔsɔkɔsɔ ƒe ʋuʋu nyona ɖe edzi eye tsidzadza kabakaba le anyigba dzi be woakpɔ egbɔ be wowɔ tack nyuie le gɔmedzedzea me, si wɔnɛ be dɔwɔwɔ si da sɔ le bliboa me.

3. Synergistic Optimization ƒe M / Q Ratio, Resin Dosage kple Silicone Rubber Viscosity

Methyl/phenyl ƒe xexlẽme kple molecule ƒe kpekpeme ye ɖoa MQ resin ƒe nɔnɔme siwo le dzɔdzɔme nu; esime M/Q ƒe xexlẽme, resin kple silicone rababa ƒe sɔsɔme kple silicone rababa ƒe ʋeʋẽ nye tẽ asitɔtrɔ ƒe nɔnɔmewo le mɔli ƒe mɔ̃ɖaŋudɔwɔwɔ me, si wòle be woawɔ ɖeka le nuwɔwɔ aduadu me.

M/Q ƒe xexlẽme

M / Q ratio tẽe ɖoa molecule ƒe kpekpeme, hydroxyl ƒe agbɔsɔsɔ kple ɖekawɔwɔ kple silicone rubber.The nyuitɔ kekeake M / Q molar ratio na silicone PSA nye zi geɖe 0.6 ~ 1.2 .Le kpɔɖeŋu me, atikewɔwɔ-grade PSA xɔa M / Q asixɔxɔ nyuitɔ si ade 0.78; resin si me M/Q 0.6–0.9 le si wotsɔ silicone rababa (viscosity 100×10−4 m²/s) ƒo ƒu le mass ratio si nye 2:3 me naa adhesive dɔwɔwɔ nyuitɔ kekeake si me kɔ nyuie.

Resin / Silicone Rubber ƒe tsakatsaka ƒe xexlẽme

Ratio siae nye lever vevitɔ si ada asɔ le nɔnɔme vevi etɔ̃awo me (gbãtɔ ƒe tack, holding power, peel strength).

·  Resin ƒe agbɔsɔsɔ si sɔ gbɔ wu nana be ɖekawɔwɔ, ŋusẽ si léa nu ɖe ​​te kple ŋusẽ si le lãgbalẽ ŋu la nyona ɖe edzi gake eɖea tack gbãtɔ dzi kpɔtɔna.

·  Rababa ƒe agbɔsɔsɔ si sɔ gbɔ wu ɖea nusi to vovo na ema fiana.

Le kpɔɖeŋu me tack.Le atikewɔwɔ ŋutɔŋutɔwo me la, zi geɖe la, silicone resin kple silicone rubber ƒe lolome ƒe sɔsɔme nyea 45:55 ~ 75:25.

Silicone Rubber ƒe ʋeʋẽ lilili

Molekyul ƒe kpekpeme si woɖena fiana to viscosity me ɖoa rheological nɔnɔme vevi siwo le adhesive system la me eye wòhiã be wòawɔ ɖeka nyuie kple MQ resin.Low-viscosity silicone rubber sɔ nyuie wu kple MQ resin, si nyo na gbãtɔ tack kple peel ŋusẽ, gake ate ŋu agblẽ nu le asiléle ŋusẽ ŋu.

4. Mɔfiameɖoɖo ƒe Gɔmeɖose na Dɔwɔwɔ ƒe Dadasɔ

Le silicone PSA ƒe wɔwɔme ƒe ɖoɖowɔwɔ me la, woate ŋu awɔ ɖoɖo ɖe nu vevi etɔ̃awo ŋu — gbãtɔ tack, holding power, 180° peel strength  — woate ŋu awɔ ɖoɖo ɖe wo ŋu pɛpɛpɛ to mɔnu vevi eve dzi:

·  Phenyl modification — multiplicative optimization : Phenyl doping nyuie naa nɔnɔme etɔ̃awo katã nyona ɖe edzi le ɣeyiɣi ɖeka me, si gblẽa sesaw ƒe mɔxexeɖedɔa nu.

·  Molecular weight & distribution adjustment — additive trade-off : Molecular weight kple mama dzi ɖuɖu pɛpɛpɛ kpɔa dadasɔ si wowɔ ɖe ɖoɖo nu le gɔmedzedze tack kple léle ɖe asi dome na dɔwɔwɔ ƒe nɔnɔme vovovowo.

Le dɔwɔƒewo ƒe wɔwɔme me la, mɔnu si bɔ ƒe mɔnu enye molecule kpekpeme mama gɔmeɖoanyi resin gbadzaa kpe ɖe phenyl ƒe tɔtrɔ  si sɔ ŋu be woada asɔ le processability kple adhesion performance.For ultra-high dzoxɔxɔ tsitretsitsi kple atike sesẽwo ƒe nɔnɔmewo me, high-phenyl-content MQ resin nye egbɔkpɔnu si wodi wu.

Mɔ̃ɖaŋununya siwo le etame la tso Jiangsu Aokai New Materials Technology Co., Ltd. gbɔ.

Ne èdi be yeanya parameters tsitotsito, dɔwɔwɔ ƒe nɔnɔmewo kple egbɔkpɔnu siwo wowɔ ɖe ɖoɖo nu na míaƒe adzɔnuwo ƒe ƒuƒoƒo bliboa: PTFE dzoxɔxɔ gã avɔ, PTFE dzoxɔxɔ gã tape, PTFE dzoxɔxɔ gã mesh alidziblanu, seamless fusing mɔ̃ alidziblanu, akpa ɖeka PTFE avɔ, dzoxɔxɔ gã tsitretsitsi conveyor belt kple dzoxɔxɔ gã tsitretsitsi fiberglass avɔ, taflatse te ɖe mía ŋu:

·  Aƒetɔ Guo: +86 18944819998

·  Aƒetɔ Liu: +86 13705266308

Míeléa xexemenunya si nye dɔwɔwɔ nyuie kple fɔmaɖimaɖi me ɖe asi ɣesiaɣi, eye míenaa dɔwɔƒewo ƒe kuxiwo gbɔ kpɔnu siwo woate ŋu awɔ le teƒe ɖeka kple dɔwɔna siwo ŋu wobu nyuie la wò.