Imithelela ye-PTFE Emulsion pH Value ekuzinzeni kwayo nasekusebenzeni kokungena

I-Jiangsu Aokai New Materials, umkhiqizi wendwangu we-PTFE wezinga eliphezulu lokushisa, uchaza ukuthi ivelu ye-pH ye-emulsion ye-polytetrafluoroethylene (PTFE) isebenza kanjani njengepharamitha ebalulekile eqinisekisa ukucutshungulwa kwayo nokusebenza kwesicelo. Imikhiqizo evamile ngokuvamile igcina i-pH ye-alkali eqinile ebuthakathaka engu-8.0–10.5 . Ukushintshashintsha kwe-pH kungabangela ukusabela kweketango kusuka kumazinga amancane kuya kwamakhulu, kuthinte ukuzinza kwesistimu (isb, impilo yeshalofu, amandla okulwa nokujiya) kanye nokusebenza kokungeneli (isb., ukungeneka, ikhwalithi yokugcina yokunamathela).

1. Imithelela ekuzinzeni

I-PTFE emulsion iwuhlelo olungazinzile lwe-thermodynamically ukuqina kwalo ngokuyinhloko kuncike ekwehleni kwe-electrostatic phakathi kwama-microparticles e-PTFE. I-pH ilawula ngokuqondile le bhalansi eyisihluthulelo.

I-Electrostatic Stabilization Mechanism (Zeta Potential)

Endaweni ene-alkali ebuthaka, ama-microparticles e-PTFE ashajwa kabi nge-adsorbing hydroxyl ions (OH⁻), enamandla e-Zeta cishe -50 mV kuya -65 mV . Lokhu kuhoxiswa kwe-electrostatic okunamandla kwanele ukunqoba amandla e-van der Waals nokugcina izinhlayiya zihlakazekile.Uma i-pH yehlela endaweni ye-isoelectric ye-PTFE (cishe i-pH 2.9-3.2), izinkokhiso zangaphandle azishintshi, amandla e-Zeta asondela ku-zero, futhi i-emulsion ikhubaza ngokushesha futhi ibhekana nokuhlangana okungenakuhlehliswa.

Ukuzinzisa Umphumela Wendawo Ye-alkali

Ama-emulsions e-PTFE ezohwebo agcinwa ene-alkali ebuthakathaka ikakhulukazi ngenxa yezizathu ezilandelayo:

· Ukuvimbela ukukhula kwe-microbial : Indawo ene-alkali ebuthakathaka icindezela ukukhula kwamagciwane, iwavimbele ukuthi angadli ama-surfactants futhi aphazamise i-emulsion.

· Ukucindezelwa kokuwohloka kwe-asidi : Indawo ye-alkaline yenza insalela ye-asidi ingabi namandla e-polymerization, igwema ukugqwala kwemishini kanye nokuwohloka kokusebenza.

Izingozi Zokwengeza I-Acid

Uma kulungiswa i-pH nama-acids afana ne-acetic acid, i-asidi kufanele yengezwe kancane kancane ngamanani amancane ngokunyakaziswa okumnene kanye nokuhlanjululwa kwangaphambili. Ukwengeza ngokushesha noma i-asidi eningi izophazamisa ibhalansi yokushaja yesistimu futhi ibangele ukuphuka kwe-emulsion ngokushesha.

2. Imithelela Ekusebenzeni Kwe-Impregnation

I-Impregnation idinga ukuthi i-emulsion ingene ngokuphumelelayo ku-substrate futhi yakhe i-coating efanayo. I-pH ithonya le nqubo ngokuyinhloko ngokushintsha i-viscosity, ukumanzisa, kanye nokushaja okungaphezulu kwesistimu.

Permeability kanye Adhesion

I-pH ithinta ukuziphatha kwe-rheological ye-emulsion. I-pH efanele ithuthukisa ukusabalalisa kanye nokungena kwe-capillary endaweni engaphansi futhi igwema ukukhubazeka. I-pH ephansi kakhulu noma ephezulu inganciphisa ukunamathela kokunamathela.

Ipharamitha Eyinhloko Yenqubo Yokubambisana

Ekulungiseleleni izinto ezihlanganisiwe, ukulungisa i-pH kuvumela ukulawula amandla e-Zeta ezinhlobo ezimbili noma ngaphezulu zezinhlayiya, okuvumela ukuhlanganisa okufanayo nokusebenza kahle ngokusebenzisana kwe-electrostatic. Isibonelo, ukulungisa i-pH yengxube ye-carbon black kanye ne-PTFE emulsion ibe ngu- 7-10  kufeza ukuhlangana okuphelele ngaphandle kwama-coagulant engeziwe.

Kwa-Aokai New Materials, ukulawulwa kwe-pH kukho konke ukulungiselelwa kwe-emulsion nokukhiqizwa kuhlanganisa umjikelezo wokuphila we-PTFE emulsion kusukela ekugcinweni kuya ekusebenzeni komkhiqizo wokugcina, okwenza kube semqoka ukuxhaphaza ngokugcwele izici ezivelele zezinto ze-PTFE.

Ulwazi olungenhla lunikezwe i- Jiangsu Aokai New Materials Technology Co., Ltd.

Ukuze uthole imingcele enemininingwane, izimo zohlelo lokusebenza kanye nezixazululo ezenziwe ngokwezifiso zohlu lwethu olugcwele lomkhiqizo kuhlanganise ne-PTFE indwangu yokushisa ephezulu, i-PTFE itheyiphu yokushisa ephezulu, ibhande le-PTFE elinezinga eliphezulu lokushisa, amabhande angenamthungo emishini yokubopha, indwangu ye-PTFE enohlangothi olulodwa, i-high-temperature resistant-temperature, i-fiberglass resistant-temperature iyajabulisa:

· UMnu. Guo: 18944819998

· UMnu. Liu: 13705266308