Kumvetsetsa Zoyambira
Bisphenol A (BPA) ndi Bisphenol f (bpf) ndi zigawo zonse zoyambirira kupanga epoxy ma resun, omwe amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga mphamvu, kukhazikika, ndi kukana kwa mankhwala. Pomwe amafanana nawo, pali kusiyana pakati pa BPA ndi BPP, yomwe imatha kukhudza zinthu zomaliza za epoxy.
Kodi pali kusiyana kotani?
Kusiyanitsa koyambirira kwa BPA ndi BPF kunagona m'mankhwala awo. BPA ili ndi magulu awiri a isopropylidene yolumikiza mayunitsi awiri a phenol, pomwe BPF ili ndi mitundu iwiri ya methynene ili ndi mitundu iwiri yolumikizira mayunitsi a phenol. Kusiyana kwa zinthu zazing'onozi kumakhala kosiyanasiyana kumapangitsa kuti zinthu zizigwirizana ndi magwiridwe antchito:
• Kutengeka:BPA epoxy imalimidwa nthawi zambiri imawonetsera kwambiri poyerekeza ndi bpf epoxy imatulukira. Izi zikutanthauza kuti matekitsi-okhazikika amachiritsa mwachangu komanso kutentha pang'ono.
• Kusinthasintha:BPF epoxy imayendera kukhala yosinthika kuposa yosinthika yosinthika, imawapangitsa kukhala oyenera pantchito yofuna kuvuta kwambiri komanso kukana.
• katundu wa mafuta:BPA epoxy amalima zimapereka bata labwino kwambiri komanso kutentha kwagalasi.
• Mtengo:BPA epoxy imalimidwa nthawi zambiri yotsika mtengo - yothandiza kuti ipange poyerekeza ndi bpf epoxy imatulukira.
Mapulogalamu
Onse a BPA ndi BPF epoxy amagwiritsa ntchito mafakitale osiyanasiyana, kuphatikiza:
• Zovala:Epoxy zokutira zochokera ku BPA ndi BPF zimagwiritsidwa ntchito kuteteza malo ku chimbudzi, Abrasion, ndi kuwukira kwa mankhwala.
• Asitereti:Zochita za epoxy zopangidwa kuchokera ku BPA ndi BPF zimagwiritsidwa ntchito pomanga zinthu zosiyanasiyana, ku zitsulo mpaka ma pulasilala.
• akatswiri:Mitundu yonseyi ya epoxy imagwiritsidwa ntchito ngati matrics m'magulu ophatikizika, monga fiberglass ndi miyambo ya marbon, zogwirizira ku Arospace, zomangamanga, ndi zomangamanga.
• zamagetsi ndi zamagetsi:A epoxy amagwiritsa ntchito ngati zida zothandizira m'magetsi zigawo zamagetsi ndi ma boloni osindikizira.
Zovuta zachilengedwe ndi njira zina
M'zaka zaposachedwa, pakhala tikukhumudwitsidwa ndi zomwe zingatheke chifukwa cha zotsatila za BPA, zomwe zimatsogolera ku malamulo ndi zoletsa pakugwiritsa ntchito zinthu zina. Zotsatira zake, pakhala kusintha kwa njira zina zopanda BPA, kuphatikizapo bpf epoxy. Komabe, ndikofunikira kudziwa kuti pomwe BPF nthawi zambiri amadziwika kuti ndi otetezeka kuposa BPA, zitha kukhalabe ndi zoopsa zina zaumoyo.
Kusankha epoxy yoyenera
Kusankhidwa kwa BPA kapena BPF epoxy kumatengera zofunikira mwatsatanetsatane. Zinthu zofunika kuziganizira zimaphatikizapo:
• katundu:Chofunika mphamvu, kulimba, kukana kwa mankhwala, komanso kukhazikika kwamafuta.
• Mtengo:Mtengo wonse wa epoxy utoto ndi mtengo wogwirizira.
• Kutsatirana:Kutsatira malamulo oyenera ndi chitetezo.
• Kukhazikika:Zotsatira za chilengedwe za epoxy zotumphukira komanso kupanga kwake.
Mapeto
Onse a BPA ndi BPF epoxy amapereka malo apadera ndi zabwino zomwe zimawapangitsa kukhala zinthu zabwino m'mafakitale osiyanasiyana. Pamene BPA yakhala chisankho chochuluka kwa zaka zambiri, nkhawa za kuthekera kwawo zadzetsa chidwi ku BPF ndi zina zina. Mwa kuganizira mofatsa zofunikira za ntchito, mainjiniya ndi opanga amatha kusankha epoxy yabwino kwambiri kuti akwaniritse zomwe mukufuna.
Post Nthawi: Jul-29-2024
