MQ Resin: Methyl/Phenyl & Mw Impact PSA Adhesion

Jiangsu Aokai New Equipment , wopanga wamkulu wa PTFE tepi yotentha kwambiri, amakupatsani kusanthula kwaukadaulo kwaukadaulo.

The polarity, steric chotchinga cha magulu organic ndi aggregation dongosolo la unyolo maselo mu MQ silikoni utomoni ndi zinthu zofunika kwambiri kulamulira bwino ntchito silikoni kupanikizika-sensitive zomatira (PSA) . pamene kulemera kwa mamolekyu ndi kugawa kwa maselo kumatsatira lamulo la seesaw - kulemera kwakukulu kwa molekyulu kumapangitsa kuti munthu akhale ndi mphamvu koma amapereka ndalama zoyamba; yotakata molecular kulemera kugawa ndi njira yabwino kusanja zinthu zitatu zofunika zomatira.

1. Methyl / Phenyl Ratio: Kusintha kwa Magwiridwe Amkati Kudzera mu Chemical Structure

Kusintha gawo lamagulu a methyl (-CH3) ndi magulu a phenyl (-C6H5) ndi njira yabwino yosinthira mamolekyulu:

Mphamvu  ya intermolecular : Mphete ya benzene imapanga kulumikizana kolimba kwa π-π intermolecular, kukweza kwambiri mphamvu yolumikizana ya zomatira, zomwe zimathandizira kwambiri kugwira mphamvu ndi kulimba kwa peel.

Kuchuluka  kwa unyolo wa ma cell : Magulu a Phenyl ali ndi cholepheretsa chachikulu, choletsa kuzungulira kwa unyolo waukulu wa silikoni ndikuchepetsa kusinthasintha kwa unyolo. Izi zimapindulitsa kukhala ndi mphamvu koma zimafooketsa mphamvu zoyambira.

·  Kunyowa kwabwino : Kusintha kwa Phenyl kumawonjezera kuyanjana kwa silikoni PSA ku malo apansi panthaka, kumalimbikitsa kulumikizana kwapakati, komanso kumawonjezera mphamvu zoyambira ndi peel.

2. Molecular Weight & Distribution: Performance Regulation through Physical Entanglement & Aggregation State

Magulu ogwira ntchito amalamulira malamulo a mankhwala , pamene kulemera kwa maselo ndi kugawa kwa maselo (Polydispersity Index, PDI) kumayang'anira malamulo a thupi :

Molecular Weight (Mw)

Mphamvu zolumikizana makamaka zimachokera kumangiridwe amthupi a maunyolo a polima.

·  Mw yapamwamba imapanga netiweki yolumikizana kwambiri ndipo imathandizira kwambiri mphamvu zogwirira.

•  Kukwera kwambiri kwa Mw kumapangitsa kuti maunyolo a mamolekyu akhale olimba komanso osasunthika, zomwe zimapangitsa kuchepa kwa mphamvu yoyambira ndikusenda.

Molecular Weight Distribution (MWD)

·  Kugawa pang'ono : Kuchita zofanana, kukhathamiritsa kosavuta kwa chinthu chimodzi monga tack yoyamba.

:  Kugawa kwakukulu Kufananiza kwa magwiridwe antchito. Zigawo zolemera kwambiri za mamolekyu zimapanga mafupa olimba a netiweki kuti atsimikizire nyonga yolumikizana ndi mphamvu yogwira; Tizigawo tating'onoting'ono tokhala ndi mamolekyulu timakhala ngati mafuta amkati ndi ma accelerators owotchera, kuwongolera kusuntha kwa maunyolo ndikunyowetsa mwachangu kuti zitsimikizire kuwongolera koyambirira, ndikukwaniritsa magwiridwe antchito onse.

3. Synergistic Optimization of M/Q Ratio, Resin Dosege and Silicone Rubber Viscosity

Chiŵerengero cha methyl/phenyl ndi kulemera kwa maselo kumatsimikizira zomwe zili mu MQ resin; pamene chiŵerengero cha M/Q, chiŵerengero cha utomoni ku mphira wa silikoni ndi kukhuthala kwa mphira wa silikoni ndi magawo osintha mwachindunji muumisiri wa formula, womwe uyenera kufananizidwa ndi synergistically.

Chiwerengero cha M/Q

Chiŵerengero cha M / Q chimatsimikizira mwachindunji kulemera kwa maselo, zomwe zili ndi hydroxyl ndi kugwirizana ndi rabara ya silikoni.Mlingo woyenera kwambiri wa M / Q molar wa silikoni PSA nthawi zambiri ndi 0.6 ~ 1.2 .Mwachitsanzo, PSA yachipatala imatenga mtengo wokwanira wa M / Q pafupifupi 0.78; utomoni wokhala ndi M/Q 0.6–0.9 wophatikizidwa ndi mphira wa silikoni (kukhuthala 100×10⁻⁴ m²/s) pamlingo wa 2:3 umapeza magwiridwe antchito abwino kwambiri omatira.

Resin / Silicone Rubber Blending Ratio

Chiŵerengero ichi ndiye chiwongolero chachikulu chowongolera zinthu zitatu zazikuluzikulu (kuwongolera koyambirira, kugwira mphamvu, mphamvu ya peel).

·  Zomwe zili ndi utomoni wapamwamba zimathandizira kugwirizana, kugwira mphamvu ndi kulimba kwa peel koma zimachepetsa kuyika koyamba.

·  Zapamwamba za rabara zikuwonetsa zosiyana.

Mwachitsanzo, kukweza kuchuluka kwa utomoni wa MQ kukhala mphira wa silikoni 107 kuchokera pa 1.2 mpaka 2.5 kumawonjezera mphamvu yogwira ndi 180 ° kulimba kwa peel ndikuchepetsa koyamba. Muzochita zowoneka bwino, kuchuluka kwa utomoni wa silikoni ku rabala ya silikoni nthawi zambiri kumakhala 45:55 ~ 75:25..

Silicone Rubber Viscosity

Kulemera kwa molekyulu komwe kumawonetsedwa ndi mamasukidwe akayendedwe kumatanthawuza zoyambira za rheological system ya zomatira ndipo zimafunikira kuyanjana kwabwino ndi MQ resin.Low-viscosity silikoni rabara imakhala yogwirizana bwino ndi utomoni wa MQ, wokomera poyambira ndi mphamvu ya peel, koma ikhoza kusokoneza mphamvu yogwira.

4. Mfundo Yopangira Mapangidwe a Magwiridwe Antchito

Pamapangidwe a silicone PSA, ma index atatu ofunikira - kuyika koyamba, mphamvu yogwira, mphamvu ya peel 180 °  - imatha kuyendetsedwa bwino ndi njira ziwiri zazikulu:

·  Kusintha kwa Phenyl — kukhathamiritsa kochulukira : Doping yoyenera ya phenyl imawongolera zinthu zonse zitatu panthawi imodzi, ndikuphwanya lamulo lachikhalidwe la ma seesaw.

·  Kulemera kwa mamolekyulu & kusintha kagawidwe — kusinthana kowonjezera : Kuwongolera molondola kulemera kwa maselo ndi kugawa kumazindikira kukhazikika kokhazikika pakati pa kuwongolera koyambirira ndi kugwirizira mphamvu pazochitika zosiyanasiyana zogwiritsira ntchito.

Popanga mafakitale, njira yodziwika bwino yopangira ma molekyulu ndi yotakata yogawira utomoni wa mamolekyulu komanso kusinthidwa kwa phenyl  kuti muthe kukhazikika bwino komanso magwiridwe antchito amtundu wonse.

Zomwe zili pamwambazi zimaperekedwa ndi Jiangsu Aokai New Materials Technology Co., Ltd.

Ngati mukufuna kudziwa mwatsatanetsatane magawo, mawonekedwe ogwiritsira ntchito ndi mayankho makonda amtundu wathu wonse: Nsalu ya PTFE yotentha kwambiri, tepi ya PTFE yotentha kwambiri, lamba wa PTFE wotentha kwambiri, lamba wamakina osakanizika, nsalu imodzi ya PTFE, lamba wotentha kwambiri, wosagwira magalasi, lamba wosagwira magalasi, chonde kukhudzana ndi magalasi osasunthika:

·  Bambo Guo: +86 18944819998

·  Bambo Liu: +86 13705266308

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