Pehea e ho'āʻo ai i ka PTFE Emulsion Quality: 6 Core Indicators & Methods

ʻO ka emulsion PTFE - ʻike ʻia ʻo PTFE dispersion - ka mea maka no ka uhi ʻana i ka lole fiberglass e hana PTFE kiʻekiʻe-mehana lole , lipine, a me nā kāʻei. Inā pau ka maikaʻi o ka emulsion, ʻaʻole maikaʻi ka hana ʻana o ka huahana hope ʻole, ka uhi ʻole ʻana, a i ʻole ka hāʻule mua ʻana.

Akā, pehea ʻoe e ʻike ai inā maikaʻi kahi pūʻulu o ka emulsion PTFE? Hoʻāʻo ʻoe.

Aokai PTFE ua hoʻohana a ho'āʻo PTFE emulsions no nā makahiki. Hoʻopili kēia alakaʻi i nā hōʻailona hoʻāʻo nui ʻeono - ka maʻiʻo paʻa, ka pH, ka nui o ka particle, ka viscosity, ke kūpaʻa, a me ke ʻano - me nā ʻano maʻamau a me nā pae ʻae.

Maʻiʻo Paʻa - ʻO ka hōʻailona kumu loa

Pili pololei ka maʻiʻo paʻa i ka hana o ka huahana a me ka hoʻokele waiwai hoʻohana (ʻoi aku ka nui o nā paʻa paʻa).

Nā ʻano hoʻāʻo maʻamau:

Paʻa ʻae ʻia:

• No ka maʻamau T/FSI 067-2021: ʻO 60±2% ka pono o ka maʻiʻo paʻa no ka hoʻokomo pinepine ʻana i ka PTFE.

• ʻO ke kūlana mana ma ka paena maoli: 60±0.5% (ʻoi aku ka paʻa o ka hoʻomanawanui no ka uhi paʻa ʻana)

Waiwai pH - Hōʻike Paʻa

Hoʻopili ka waiwai pH i ka paʻa o ka mālama ʻana, corrosiveness, a me ka launa pū me nā mea ʻē aʻe.

Ke ʻano hoʻāʻo: Ke ʻano Electrode Glass (Direct Determination) - ana me ka pH mika me ke aniani electrode calibrated ma o ka calibration ʻelua a ʻekolu paha. ʻO kēia ke ala maʻamau i hoʻohana pinepine ʻia.

Paʻa ʻae ʻia:

• No ka T/FSI 067-2021: ka pae pH 9.0 – 11.0

• Hōʻike pinepine ka piʻi ʻana o ka pH i ka paʻa ʻole o ka ʻōnaehana a i ʻole ka hopena kemika (e laʻa, hydrolysis o surfactant)

• He mea koʻikoʻi ka ʻimi lōʻihi o ka hoʻololi ʻana i ka pH no ka hoʻoholo ʻana i ke kūpaʻa kemika o ka emulsion

No ke aha ka pH: Hoʻopaʻa ʻia nā emulsions PTFE e nā surfactants fluorinated, e koi ana i nā kūlana alkaline (pH> 8) e hoʻomau pono. Inā hāʻule ka pH ma lalo o 8, hiki i ka emulsion ke coagulate.

Manaʻo ʻo Aokai PTFE i ka hoʻāʻo ʻana i ka pH ma kēlā me kēia pahu e komo mai ana a i kēlā me kēia mahina i ka wā mālama. ʻO ka hāʻule koke ʻana mai ka 10.2 a i ka 8.5 ma luna o ʻelua pule e hōʻike ana ua destabilizing ka emulsion a pono e hoʻohana koke ʻia a hōʻole ʻia.

Ka nui a me ka hoʻohelehele ʻana

ʻO ka nui a me ka hāʻawi like ʻana o nā ʻāpana mua o ka PTFE he hopena koʻikoʻi i nā waiwai hana kiʻiʻoniʻoni, permeability, a me ka hana huahana hope loa.

Nā ʻano hoʻāʻo:

Nā hōʻailona loiloi nui:

• D50 (median anawaena) – typical range for PTFE emulsion: 0.1-0.3 microns

• ʻOi aku ka maikaʻi o ka hāʻawi ʻana i ka nui o ka ʻāpana ʻāpana - ʻoi aku ka maikaʻi no ka uhi paʻa ʻana

• D10 a me D90 - hōʻike i ka laha o ka puʻunaue

Ke alakaʻi ʻae: No ka hapa nui o nā noi uhi, pono ʻo D50 ma waena o 0.15 a me 0.25 μm me 90% o nā ʻāpana i loko o ± 0.1 μm o ka mean.

Viscosity - Hoʻohana i ka hana

Hōʻike ka viscosity i ka ʻano kahe, pili pono i ka uhi ʻana a me nā kaʻina hana impregnation.

Nā ʻano ana maʻamau:

Paʻa ʻae ʻia:

• No ka T/FSI 067-2021: Ka laulā viscosity 12.0 – 30.0 mPa·s (ma 25±1°C)

• Haʻahaʻa haʻahaʻa loa → ka uhi ʻole ʻia, kulu

• ʻO ka viscosity kiʻekiʻe loa → ke komo maikaʻi ʻole i ka fiberglass, pono ka dilution

ʻŌlelo hoʻomaʻamaʻa: No ka uhi ʻana o ka lole fiberglass, maʻamau ka 15-20 mPa·s ka viscosity target. Inā hee ka viscosity, e hoʻololi me ka wai deionized (i lalo) a i ʻole e hoʻohui i ka mānoanoa (e hoʻokiʻekiʻe).

Ka Loiloi Paʻa - Ka mālama ʻana a me ka hilinaʻi o ka lawe ʻana

ʻO ka loiloi kūpaʻa e hōʻoia i ka paʻa ʻana o ka emulsion i ka wā mālama a me ka lawe ʻana. Hoʻohana ʻia nā ʻano hoʻokolohua wikiwiki e hoʻohālikelike i nā kūlana lōʻihi.

ʻO nā pae hoʻoholo i hala/ʻaʻole:

• ʻAʻole ʻike ʻia ka delamination, sedimentation, a i ʻole ka hana gel

• Hoʻololi viscosity <10% mai ka mua

• Hoʻololi ʻia ka nui o ka ʻāpana D50 < 15%

ʻO ke alakaʻi ola o ka papa: Ma lalo o kahi mālama kūpono (10-30 ° C, sila ʻia), mālama mau ʻia ka emulsion PTFE no 6-12 mau mahina. Inā hōʻike ka hōʻike centrifuged > 5% sediment, e hoʻolei i ka pūʻulu.

Nānā Hiʻohiʻona - Hōʻoia Kūlike o ka Batch

E nānā maka i ka hāpana ma lalo o ka mālamalama maoli.

Hiki ke ʻae ʻia: Emulsion keʻokeʻo a ʻulaʻula melemele paha, ʻaʻahu, ʻaʻohe mea ʻino e like me ka delamination, nā puʻupuʻu gel, ka hoʻokumu ʻana o ka ʻili, a i ʻole ka ua.

He aha e nānā ai:

• Pōʻeleʻele → hiki ke hoʻohaumia a hoʻohaʻahaʻa paha i ka wela

• ʻO ka ʻili ma ka ʻili → maloʻo a ʻāpana coagulation paha

• ʻO nā puʻupuʻu a i ʻole ka ʻōpala → polymer coagulated (ʻino)

• ʻO ka wai maʻemaʻe ma luna → ua hiki mai ka sedimentation

Hōʻuluʻulu manaʻo - E koho i nā ʻano hoʻāʻo ma muli o ka noi

Hāʻawi ʻia ka ʻike ma luna e Jiangsu Aokai New Materials Technology Co., Ltd.

Inā makemake ʻoe e aʻo hou aʻe e pili ana i nā ʻāpana kikoʻī, nā hiʻohiʻona noiʻi, a me nā hoʻoponopono hoʻoponopono no kā mākou piha piha o nā huahana, e komo pū me Teflon lole wela kiʻekiʻe, Teflon kiʻekiʻe-mehana lipine, Teflon kiʻekiʻe wela mesh kāʻei, seamless fusing mīkini kāʻei, ʻaoʻao hoʻokahi ʻaoʻao PTFE lole, kiʻekiʻe-mehana a me ke kūpaʻa kiʻekiʻe ma o nā kāʻei hoʻopili kiʻekiʻe. penei:

• Mr. Guo: +86 18944819998

• Mr. Liu: +86 13705266308

Ke kākoʻo mau nei mākou i ka manaʻo lawelawe ʻoihana a me ka ʻoiaʻiʻo, a hāʻawi me ka naʻau holoʻokoʻa iā ʻoe i nā hopena hoʻokahi a me nā lawelawe hoʻolohe!