Jiangsu Aokai New Materials, PTFE ntama a ɛyɛ hyew kɛse yɛfo, kyerɛkyerɛ sɛnea pH bo a polytetrafluoroethylene (PTFE) emulsion yɛ adwuma sɛ parameter a ɛho hia a ɛhwɛ hu sɛ ne dwumadie ne dwumadie adwumayɛ. Nneɛma titiriw a wɔyɛ no taa kura pH a ɛyɛ mmerɛw a ɛyɛ alkaline a ɛyɛ 8.0–10.5 a ɛyɛ den . Nsakrae a ɛba pH mu no betumi akanyan nkɔnsɔnkɔnsɔn mu adeyɛ fi micro kosi macro levels, a ɛka nhyehyɛe no pintinn (sɛ nhwɛso no, shelf nkwa, anti-coagulation tumi) ne impregnation adwumayɛ (sɛ nhwɛso no, permeability, awiei coating quality).

1. Nkɛntɛnso a Ɛwɔ Gyinabea So

PTFE emulsion yɛ thermodynamically unstable nhyehyɛe a ne gyinabea titiriw gyina electrostatic repulsion ntam PTFE microparticles. pH hwɛ saa kari pɛ titiriw yi so tẽẽ.

Electrostatic Stabilization Mechanism (Zeta Tumi a Ɛwɔ Hɔ) .

Wɔ tebea a alkaline nyɛ den mu no, PTFE nketenkete no nya ahoɔden bɔne denam hydroxyl ions (OH−) a ɛtwetwe so, a Zeta tumi bɛyɛ -50 mV kosi -65 mV . Saa electrostatic repulsion a emu yɛ den yi dɔɔso sɛ ɛbɛdi van der Waals tumi so na ama nneɛma nketenkete no apete.Sɛ pH no kɔ fam kɔ ​​isoelectric point a ɛwɔ PTFE (bɛyɛ pH 2.9–3.2) a, surface charges no yɛ neutralized, Zeta potential no bɛn zero, na emulsion no yɛ destabilizes ntɛmntɛm na ɛfa coagulation a wontumi nsakra mu.

Nkɛntɛnso a Alkaline Atwa Yɛn Ho Ahyia Nya a Ɛma Ɛyɛ Den

Wɔde PTFE emulsions a wɔtɔn no sie alkaline a ɛyɛ mmerɛw titiriw esiane nneɛma a edidi so yi nti:

· Nkwammoaa nketenkete nyin a wosiw ano : Alkaline a ɛyɛ mmerɛw no siw mmoawa nyin ano, na ɛmma wontumi nni surfactants na ɛmma emulsion no ntumi nnyina.

· Suppression of acidic degradation : Alkaline atwa yɛn ho ahyia no neutralizes residual acidic nneɛma fi polymerization, kwati nnwinnade corrosion ne adwumayɛ asɛe.

Asiane a Ɛwɔ Acid a Wɔde Ka Ho

Sɛ wɔde acid te sɛ acetic acid reyɛ pH nsakrae a, ɛsɛ sɛ wɔde acid no ka ho nkakrankakra wɔ kakraa bi mu a wɔkanyan no brɛoo na wodi kan hyɛ mu. Nneɛma a wɔde ka ho ntɛmntɛm anaasɛ acid a ɛboro so no bɛsɛe nhyehyɛe no charge kari pɛ na nso ama emulsion no abubu ntɛm ara.

2. Nkɛntɛnso a Ɛwɔ Impregnation Adwumayɛ So

Impregnation hwehwɛ sɛ emulsion no hyɛn substrate no mu yiye na ɛyɛ ade biako a wɔde kata so. pH nya saa adeyɛ yi so nkɛntɛnso titiriw denam nhyehyɛe no mu nsu a ɛyɛ nwini, sɛnea ɛyɛ nsu, ne nea ɛwɔ soro a ɛsakra no so.

Permeability ne Adhesion a ɛtumi fa mu

pH nya rheological suban a ɛwɔ emulsion no mu so nkɛntɛnso. pH a ɛfata ma trɛw ne ntini a ɛkɔ mu no yɛ papa wɔ substrate no ani na ɛkwati sintɔ ahorow. pH a ɛba fam anaasɛ ɛkɔ soro dodo betumi atew ade a wɔde kata so no a ɛbata ho no so.

Parameter titiriw ma Co-Coagulation Adeyɛ

Wɔ nneɛma a wɔabom ayɛ ahosiesie mu no, pH a wɔsakra no ma wotumi di Zeta tumi a ɛwɔ nneɛma nketenkete ahorow abien anaa nea ɛboro saa mu no so, na ɛma wotumi yɛ co-coagulation a ɛyɛ pɛ na etu mpɔn denam electrostatic nkitahodi so. Sɛ nhwɛso no, sɛ wɔyɛ nsakrae wɔ carbon black ne PTFE emulsion afrafra pH mu ma ɛyɛ 7–10 a  , ɛma ɛyɛ coagulation koraa a coagulants foforo nka ho.

Wɔ Aokai New Materials no, pH a wɔhwɛ so wɔ emulsion ahosiesie ne ne yɛ nyinaa mu no kata PTFE emulsion nkwa nna nyinaa so fi bere a wɔkora so kosi nea etwa to no adwumayɛ so, na ɛma ɛho hia sɛ wɔde PTFE nneɛma no su a ɛda nsow no di dwuma koraa.

Nsɛm a ɛwɔ atifi hɔ no yɛ nea Jiangsu Aokai New Materials Technology Co., Ltd. na ɛde mae.

Sɛ wopɛ parameters a ɛkɔ akyiri, application scenarios ne customized ano aduru a yɛn nneɛma nyinaa ka ho a PTFE high-temperature ntama, PTFE high-temperature tape, PTFE high-temperature mesh belt, seamless belts ma bonding mfiri, biako-afã PTFE ntama, high-ɔhyew resistant conveyor belts ne high-temperature fiberglass ntama, yɛsrɛ wo di yɛn ho nkɔmmɔ wɔ:

· Owura Guo: 18944819998

· Owura Liu: 13705266308