MQ Resin: Methyl/Phenyl & Mw Impact PSA Adhesion

Jiangsu Aokai New Materials , moetsi ea ka sehloohong oa PTFE tepi ea mocheso o phahameng oa mocheso, o u fa tlhahlobo ea litsebi tsa setsebi.

Polarity, steric block of organic groups and aggregation structure of molecular chains in MQ silicone resin ke lintlha tse ka sehloohong tsa ho laola tekanyo ea ts'ebetso ea li-adhesives tse nang le khatello ea silicone (PSA) . ha boima ba limolek'hule le kabo ea boima ba limolek'hule li latela molao o tloaelehileng oa seesaw - boima bo phahameng ba molek'hule bo ntlafatsa ho tšoara matla empa bo tela tack ea pele; kabo e pharaletseng ea boima ba limolek'hule ke mokhoa o atlehang oa ho leka-lekanya lintho tse tharo tsa bohlokoa tsa sekhomaretsi.

1. Methyl / Phenyl Ratio: Phenyl Ratio: Intrinsic Performance Adjustment ka Chemical Structure

Ho fetola karolo ea lihlopha tsa methyl (-CH3) ka lihlopha tsa phenyl (-C6H5) ke mokhoa o sebetsang oa ho fetola boemo ba molek'hule:

·  Matla a matlafalitsoeng a li-intermolecular : Reng ea benzene e hlahisa tšebelisano e matla ea π-π intermolecular, e phahamisa haholo matla a kopantsoeng a sekhomaretsi, e leng se hlileng se ntlafatsang ho tšoara matla le matla a peel.

·  Ketane ea limolek'hule e tsitsitseng : Lihlopha tsa Phenyl li na le tšitiso e kholo ea steric, e thibelang ho potoloha ha liketane tse kholo tsa silicone le ho fokotsa ho fetoha ha ketane. Melemo ena ea ho ts'oara matla empa e atisa ho fokolisa mokhoa oa pele.

·  Ho ntlafala ha metsi : Phenyl phetoho e ntlafatsa kamano ea silicone PSA sebakeng sa substrate, e khothalletsa ho kopana ha sefahleho, 'me e ntlafatsa matla a pele a tack le peel.

2. Boima ba Limolek'hule & Phatlalatso: Taolo ea Ts'ebetso ka 'Mele Entanglement & Aggregation State

Lihlopha tse sebetsang li laola taolo ea lik'hemik'hale , ha boima ba limolek'hule le kabo ea boima ba limolek'hule (Polydispersity Index, PDI) li laola taolo ea 'mele :

Boima ba Molek'hule (Mw)

Matla a momahaneng haholo-holo a tsoa ho ts'ebetsong ea 'mele ea liketane tsa polymer.

·  Mw e phahameng e theha marang-rang a thibaneng 'me e ntlafatsa matla a ho ts'oara.

Mw e phahameng ka ho fetesisa  e etsa hore liketane tsa molek'hule li be thata 'me li se ke tsa tenyetseha, e leng se etsang hore ho fokotsehe ha matla a pele a ho phunya le ho ebola.

Kabo ea Boima ba Limolek'hule (MWD)

·  Kabo e tšesaane : Ts'ebetso e ts'oanang, ts'ebeliso e bonolo ea sepheo sa thepa e le 'ngoe joalo ka tack ea pele.

·  Phatlalatso e pharalletseng : Ho bapisa tšebetso e tlatsetsang. Likarolo tse phahameng tsa boima ba limolek'hule li theha skeleton e thata ea marang-rang ho tiisa matla a kopanetsoeng le matla a ho tšoara; likaroloana tse tlase tsa boima ba limolek'hule li sebetsa e le lisebelisoa tsa ka hare le li-accelerator tsa ho kolobisa, ho ntlafatsa ho tsamaea ha ketane le ho kolobisa ka potlako holimo ho etsa bonnete ba hore ho na le mekhoa e metle ea pele, ho finyella ts'ebetso e leka-lekaneng ka kakaretso.

3. Synergistic Optimization ea M/Q Ratio, Resin Dosage le Silicone Rubber Viscosity

Karo-karolelano ea methyl / phenyl le boima ba limolek'hule li khetholla thepa ea tlhaho ea resin ea MQ; ha karo-karolelano ea M / Q, karo-karolelano ea resin ho silicone rabara le viscosity ea rabara ea silicone e le maemo a ho fetola ka ho toba boenjiniere ba foromo, e tlamehang ho tsamaisana ka tumellano.

Karolelano ea M/Q

Karolelano ea M / Q e khetholla ka ho toba boima ba molek'hule, lihlahisoa tsa hydroxyl le ho lumellana le rabara ea silicone. The optimal M / Q molar ratio bakeng sa silicone PSA ka kakaretso ke 0.6 ~ 1.2 .Ka mohlala, PSA ea boemo ba bongaka e nka boleng bo nepahetseng ba M / Q hoo e ka bang 0.78; resin e nang le M/Q 0.6–0.9 e kopantsoeng le rabara ea silicone (viscosity 100×10⁻⁴ m²/s) ka karo-karolelano ea boima ba 2: 3 e fumana ts'ebetso e phethahetseng ea sekhomaretsi.

Resin / Silicone Rubber Blending Ratio

Karolelano ena ke senotlolo sa ho leka-lekanya thepa e meraro ea mantlha (tack ea pele, matla a ho tšoara, matla a peel).

·  Likahare tse phahameng tsa resin li ntlafatsa momahano, ho ts'oara matla le matla a ho ebola empa li fokotsa sekhahla sa pele.

·  Likahare tse phahameng tsa rabara li bonts'a mokhoa o fapaneng.

Ka mohlala, ho phahamisa tekanyo ea boima ba MQ resin ho 107 silicone rabara ho tloha 1.2 ho ea 2.5 ho tla eketsa matla a ho tšoara le matla a 180 ° ha ho ntse ho fokotseha ha qalong. Ka mekhoa e sebetsang, karo-karolelano ea boima ba resin ea silicone ho rabara ea silicone hangata ke 45:55 ~ 75:25..

Silicone Rubber Viscosity

Boima ba limolek'hule bo bontšoang ke viscosity bo etsa qeto ea thepa ea motheo ea rheological ea tsamaiso ea sekhomaretsi 'me e hloka ho lumellana hantle le MQ resin.Low-viscosity silicone rabara e na le tumellano e ntle le MQ resin, e loketseng bakeng sa tack ea pele le matla a peel, empa e ka senya matla a ho tšoara.

4. Molao-motheo oa Moralo oa Foromo bakeng sa Tekatekano ea Ts'ebetso

Ka moralo oa sebopeho sa silicone PSA, li-index tse tharo tsa bohlokoa - ts'ebetso ea pele, matla a ho ts'oara, matla a 180 °  - a ka laoloa ka nepo ka mekhoa e 'meli ea mantlha:

·  Phenyl modification — multiplicative optimization : Phenyl doping e nepahetseng e ntlafatsa thepa eohle e meraro ka nako e le 'ngoe, ho tlōla thibelo ea setso sa seeaw.

·  Phetoho ea boima ba limolek'hule le ho ajoa - phapanyetsano ea tlatsetso : Taolo e nepahetseng ea boima ba limolek'hule le kabo ea tsona e hlokomela ho leka-lekana ho ikamahanyang le maemo lipakeng tsa ho qala le ho tšoara matla bakeng sa maemo a fapaneng a ts'ebeliso.

Tlhahisong ea indasteri, leano le tloaelehileng la mokhoa oa ho etsa limolek'hule ke lesela le leholo la limolek'hule tsa ho aba boima ba limolek'hule hammoho le phetoho e itekanetseng ea phenyl  ho leka-lekanya ts'ebetso le ts'ebetso ea ho khomarela ka ho feletseng.

Litaba tsa tekheniki tse kaholimo li fanoe ke Jiangsu Aokai New Materials Technology Co., Ltd.

Haeba u batla ho tseba lintlha tse qaqileng, maemo a kopo le litharollo tse ikhethileng bakeng sa mohala oa rona o felletseng oa sehlahisoa: lesela la PTFE le mocheso o phahameng oa mocheso, tepi ea mocheso o phahameng oa PTFE, lebanta la mocheso o phahameng oa mocheso oa PTFE, lebanta la mochini o se nang mochini, lesela le nang le lehlakore le le leng la PTFE, lebanta le nang le mocheso o phahameng oa mocheso o sa keneleng mocheso, lesela le hanyetsanang le rona:

·  Monghali Guo: +86 18944819998

·  Monghali Liu: +86 13705266308

Re lula re khomarela filosofi ea botsebi le botšepehi, 'me re u fa tharollo ea indasteri e le' ngoe le litšebeletso tse nahanang.