Polypropylene glycol (PPG)ndi polima si-ayoni wopezedwa ndi mphete-kutsegula polymerization wa propylene okusayidi. Lili ndi zinthu zofunika kwambiri monga kusungunuka kwamadzi kosinthika, kusinthasintha kwamitundu yosiyanasiyana, kukhazikika kwamankhwala, komanso kawopsedwe kochepa. Ntchito zake zimagwira ntchito m'mafakitale angapo, kuphatikiza mankhwala, mankhwala, mankhwala atsiku ndi tsiku, chakudya, ndi mafakitale. Ma PPG a masikelo osiyanasiyana a mamolekyu (nthawi zambiri kuyambira 200 mpaka 10,000) amawonetsa kusiyana kwakukulu kwa magwiridwe antchito. Ma PPG otsika kwambiri (monga PPG-200 ndi 400) amatha kusungunuka m'madzi ndipo amagwiritsidwa ntchito ngati zosungunulira ndi zopangira pulasitiki. Ma PPG olemera apakati komanso apamwamba (monga PPG-1000 ndi 2000) amakhala osungunuka m'mafuta kapena olimba kwambiri ndipo amagwiritsidwa ntchito makamaka popanga emulsification ndi kaphatikizidwe ka elastomer. Zotsatirazi ndikuwunika mwatsatanetsatane madera ake akuluakulu:
1. Makampani a Polyurethane (PU): Chimodzi mwa Zida Zopangira Zopangira
PPG ndi chinthu chofunikira kwambiri cha polyol chopangira zinthu zopangidwa ndi polyurethane. Pochita ndi ma isocyanates (monga MDI ndi TDI) ndikuphatikizana ndi ma chain extenders, imatha kupanga mitundu yosiyanasiyana yazinthu za PU, zomwe zimaphimba mitundu yonse yamitundu yofewa mpaka yolimba:
Ma polyurethane elastomers: PPG-1000-4000 amagwiritsidwa ntchito popanga thermoplastic polyurethane (TPU) ndi polyurethane elastomers (CPU). Ma elastomers awa amagwiritsidwa ntchito muzitsulo za nsapato (monga zotsekera pakati pa nsapato za masewera), zisindikizo zamakina, malamba otumizira, ndi ma catheter azachipatala (omwe ali ndi biocompatibility yabwino). Amapereka kukana kwa abrasion, kukana misozi, ndi kusinthasintha.
Zomatira za polyurethane / zomatira: PPG imathandizira kusinthasintha, kukana madzi, komanso kumamatira zokutira ndipo imagwiritsidwa ntchito mu utoto wamagalimoto a OEM, utoto wotsutsa dzimbiri, ndi zokutira zamatabwa. Mu zomatira, zimathandizira kulimba kwa mgwirizano komanso kukana kwanyengo, zomwe zimapangitsa kuti zikhale zoyenera kumangirira zitsulo, mapulasitiki, zikopa, ndi zida zina.
2. Mankhwala a Tsiku ndi Tsiku ndi Kusamalira Munthu: Zowonjezera Zogwira Ntchito
PPG, chifukwa cha kufatsa kwake, ma emulsifying, ndi zinthu zonyowa, imagwiritsidwa ntchito kwambiri posamalira khungu, zodzoladzola, zotsukira, ndi zinthu zina. Mitundu yosiyanasiyana ya kulemera kwa maselo imakhala ndi ntchito zake:
Emulsifiers ndi Solubilizers: Yapakatikati molekyulu yolemera PPG (monga PPG-600 ndi PPG-1000) nthawi zambiri imaphatikizidwa ndi mafuta acids ndi esters monga emulsifier nonionic mu zopaka, mafuta odzola, shamposi, ndi ma formulations ena, kukhazikika machitidwe amadzi amafuta ndi kupewa kupatukana. Low molecular weight PPG (monga PPG-200) itha kugwiritsidwa ntchito ngati solubilizer, kuthandiza kusungunula zosakaniza zosungunuka zamafuta monga zonunkhira ndi mafuta ofunikira mumipangidwe yamadzi.
Zopatsa Moisturizer ndi Emollients: PPG-400 ndi PPG-600 zimapereka zopatsa mphamvu zopatsa mphamvu komanso zotsitsimula, zopanda mafuta. Amatha kusintha glycerin mu ma tona ndi ma seramu, ndikupangitsa kuti zinthu ziziyenda bwino. Mu ma conditioner, amatha kuchepetsa magetsi osasunthika ndikupangitsa tsitsi kukhala losalala. Kuyeretsa Zowonjezera Zogulitsa: Mu ma gels osambira ndi sopo wam'manja, PPG imatha kusintha mawonekedwe a mawonekedwe, kupititsa patsogolo kukhazikika kwa thovu, ndikuchepetsa kukwiyitsa kwa okwera. Mu mankhwala otsukira mano, amakhala ngati humectant ndi thickener, kuteteza phala kuti kuyanika ndi kusweka.
3. Kugwiritsa Ntchito Mankhwala ndi Zachipatala: Mapulogalamu Otetezeka Kwambiri
Chifukwa cha kawopsedwe kakang'ono komanso kuyanjana kwabwino kwachilengedwe (kogwirizana ndi USP, EP, ndi miyezo ina yamankhwala), PPG imagwiritsidwa ntchito kwambiri popanga mankhwala ndi zida zamankhwala.
Mankhwala Onyamula ndi zosungunulira: Low maselo kulemera PPG (monga PPG-200 ndi PPG-400) ndi zosungunulira bwino kwa mankhwala bwino sungunuka ndipo angagwiritsidwe ntchito suspensions m'kamwa ndi jekeseni (kufuna kulamulira chiyero kwambiri ndi kuchotsa zonyansa), kusintha mankhwala solubility ndi bioavailability. Kuphatikiza apo, PPG itha kugwiritsidwa ntchito ngati suppository maziko kuti apititse patsogolo kutulutsidwa kwa mankhwala.
Kusintha kwa Zinthu Zachipatala: Pazinthu zamankhwala za polyurethane (monga mitsempha yamagazi, ma valve amtima, ndi ma catheter a mkodzo), PPG imatha kusintha hydrophilicity ndi biocompatibility ya zinthuzo, kuchepetsa kuyankha kwa chitetezo chamthupi ndikuwongolera kusinthasintha kwa zinthuzo komanso kukana dzimbiri kwa magazi. Zothandizira Zamankhwala: PPG ikhoza kugwiritsidwa ntchito ngati gawo loyambira muzodzola ndi zopaka kuti zipititse patsogolo kulowa kwa mankhwala pakhungu ndipo ndi yoyenera pamankhwala apakhungu (monga antibacterial ndi steroid mafuta odzola).
4. Mafuta Opangira Mafakitale ndi Makina: Mafuta Ogwira Ntchito Kwambiri
PPG imapereka mafuta abwino kwambiri, odana ndi kuvala, komanso kukana kwapamwamba komanso kotsika. Imakhalanso yogwirizana kwambiri ndi mafuta amchere ndi zowonjezera, zomwe zimapangitsa kuti ikhale yofunika kwambiri pamafuta opangira mafuta.
Mafuta a Hydraulic ndi Gear: Ma PPG apakati komanso apamwamba kwambiri (monga PPG-1000 ndi 2000) atha kugwiritsidwa ntchito kupanga anti-wear hydraulic fluids oyenera makina opangira ma hydraulic apamwamba pamakina omanga ndi zida zamakina. Amasunga madzi abwino kwambiri ngakhale pa kutentha kochepa. Mu mafuta a gear, amawonjezera anti-seizure ndi anti-wear properties, kukulitsa moyo wa gear.
Zida Zachitsulo: PPG itha kugwiritsidwa ntchito ngati chowonjezera pakupanga zitsulo ndi kugaya zamadzimadzi, kupereka mafuta, kuziziritsa, ndi kupewa dzimbiri, kuchepetsa kuvala kwa zida ndikuwongolera makina olondola. Ndiwowonongekanso (ma PPG ena osinthidwa amakwaniritsa kufunikira kwa madzi odula omwe amawononga chilengedwe). Mafuta Apadera: Mafuta omwe amagwiritsidwa ntchito pa kutentha kwambiri, kuthamanga kwambiri, kapena makina apadera (monga malo a acidic ndi alkaline), monga zida zam'mlengalenga ndi mapampu amadzimadzi ndi ma valve, amatha kusintha mafuta amchere amchere ndikuwongolera kudalirika kwa zida.
5. Kukonza Chakudya: Zowonjezera Zakudya Zakudya
Food-grade PPG (FDA-compliant) imagwiritsidwa ntchito popanga emulsification, defoaming, ndi moisturizing pokonza chakudya:
Emulsification and Stabilization: Muzinthu zamkaka (monga ayisikilimu ndi zonona) ndi zinthu zowotcha (monga makeke ndi buledi), PPG imakhala ngati emulsifier kuti iteteze kulekanitsa kwamafuta ndikuwongolera kapangidwe kake kakufanana ndi kukoma. M'zakumwa, zimakhazikika bwino komanso ma inki kuti apewe kulekana.
Defoamer: Munjira zowotchera chakudya (monga moŵa ndi soya msuzi) ndi kukonza madzi, PPG imagwira ntchito ngati defoamer kupondereza thovu ndikuwongolera kupanga bwino popanda kukhudza kukoma.
Humectant: Mu makeke ndi maswiti, PPG imagwira ntchito ngati moisturizer kuti ipewe kuyanika ndi kusweka, kukulitsa moyo wa alumali.
6. Madera Ena: Kusintha Ntchito ndi Ntchito Zothandizira
Zopaka ndi Inks: Kuphatikiza pazovala za polyurethane, PPG itha kugwiritsidwa ntchito ngati chosinthira ma alkyd ndi epoxy resins, kuwongolera kusinthasintha kwawo, kusanja, komanso kukana madzi. Mu inki, imatha kusintha mamasukidwe akayendedwe ndi kukulitsa kusindikiza (mwachitsanzo, inki za offset ndi gravure).
Zothandizira Zovala: Zimagwiritsidwa ntchito ngati zomaliza komanso zofewa za nsalu, zimachepetsa kukhazikika komanso kumapangitsa kufewa. Popaka utoto ndi kumaliza, chitha kugwiritsidwa ntchito ngati chowongolera kuti muchepetse kufalikira kwa utoto ndikupangitsa kuti utoto ukhale wofanana.
Ma Defoamers ndi Demulsifiers: Pakupanga mankhwala (mwachitsanzo, kupanga mapepala ndi kuthira madzi oyipa), PPG itha kugwiritsidwa ntchito ngati defoamer kupondereza thovu popanga. Popanga mafuta, amatha kugwiritsidwa ntchito ngati demulsifier kuthandiza kulekanitsa mafuta osakanizika ndi madzi, potero kumawonjezera kuchira kwamafuta. Mfundo Zofunika Kwambiri: Kugwiritsa ntchito PPG kumafuna kuganizira mozama za kulemera kwa maselo (mwachitsanzo, kulemera kochepa kwa maselo kumayang'ana zosungunulira ndi kunyowa, pamene kulemera kwa maselo apakati ndi apamwamba kumayang'ana pa emulsification ndi lubrication) ndi chiyero cha chiyero (zogulitsa zaukhondo zimakondedwa m'mafakitale a zakudya ndi mankhwala, pamene masukulu okhazikika amatha kusankhidwa malinga ndi zosowa za mafakitale). Ntchito zina zimafunikanso kusinthidwa (mwachitsanzo, kumezanitsa kapena kulumikiza) kuti ziwongolere magwiridwe antchito (mwachitsanzo, kuletsa kutentha ndi kuchedwa kwa lawi). Ndi kuchuluka kwa zofunikira pakutetezedwa kwa chilengedwe komanso magwiridwe antchito apamwamba, madera ogwiritsira ntchito PPG yosinthidwa (mwachitsanzo, PPG yochokera pazachilengedwe ndi PPG yowonongeka) ikukulirakulira.
Nthawi yotumiza: Oct-29-2025