Kodi pourermustictane elastomer ndi chiyani?
PolUrethane Elastomer ndi zida zopangidwa ndi poureurethane (mitundu ina ikunena za thonje la polurethane, polyurethane eyastomer ndi amodzi mwa mitundu itatu ya polyurethar .
TPU ndi mtundu wa polyurethane elastorter yomwe imatha kuponyedwa pang'onopang'ono ndikutentha ndi zosungunulira. Poyerekeza ndi CPU ndi mpu, tpu amakhala ndi zochepera kapena zopanda mankhwala olumikizana ndi mankhwala. Tcheni lakelecular yake ndi yozungulira, koma pali kuchuluka kwa kulumikizana kwakuthupi. Uwu ndiye polmoplastic pollustomer omwe ali ndi chikhalidwe.
Kapangidwe kake ndi gulu la tpu
Thermoplastic polyirethane elastomer ndi (AB) block mzere polymer. Oyimira polymer polyol (esster kapena polyther, molecular kulemera kwa 1000 ~ 6000) ndi kulemera kwambiri kwa mawonekedwe, B ukuyimira dina lokhala ndi ma atomu owongoka 2-12, otchedwa unyolo wamfupi.
Pa kapangidwe ka thermoplastic polirethane elastomer, gawo lotchedwa gawo lofewa, lomwe lili ndi mawonekedwe a kusinthasintha ndi zofewa, kupanga TPU kukhala ndi zowonjezera; Unyolo unyolo wopangidwa ndi zomwe zimachitika pakati pa gawo la B ndipo Isoctanate imatchedwa gawo lolimba, lomwe lili ndi zovuta komanso zolimba. Posintha kuchuluka kwa magawo a a ndi B, zinthu TPU ndi katundu wosiyana ndi makina.
Malinga ndi mawonekedwe ofewa, imatha kugawidwa mu mtundu wa polyether, mtundu wa polyther, ndi mtundu wa bunadiene, womwe umakhala ndi gulu la Elether, kapena gulu la Etherne. Malinga ndi mawonekedwe olimba, imatha kugawidwa mu mtundu urethane mtundu wa urethane urea, womwe umapezeka mosiyanasiyana kuchokera ku Ethyle Glycol unyolo wowonjezera kapena diamine unyolo. Gulu wamba limagawidwa mu mtundu wa polyester ndi mtundu wa polyther.
Kodi zida zophatikizira za tpu ndi ziti?
(1) Polymer Diol
Macrorolecular diol okhala ndi kulemera kwa masentimita 500 mpaka 4000 ndi ma boti, okhala ndi 50% ku 80% mu tpustomer, amagwiranso ntchito yothandiza pa TPU.
Polymer Diol yoyenera tpu estastomer amatha kugawidwa mu polyesterter and polytetramethylene adiple acid glycol, phc; Ma Polythers amaphatikizapo polyoxypropyynene etherch glycol (ppg), tetrahydrofuran Polycol glycol (ptmg), etc.
(2) diisoctanite
Kulemera kwa maselo ndi ochepa koma ntchitoyi ndi yosangalatsa, yomwe siyimangopanga gawo lolumikiza gawo lofewa komanso gawo lolimba, komanso limayika TPU yokhala ndi zinthu zabwino zolimbitsa thupi komanso zamakina. A Diisoctaneates amagwira ntchito ku TPU ndi: Methylene Lifinya Diisocyanga (PPDI), P-Nayyldiisocyl diisoctaniate (PXDi), etc.
(3) unyolo wowerenga
Unyolo wowoneka bwino wokhala ndi zolemera za 100 ~ 350, kukhala wa diolecular dimal, kulemera kakang'ono kwa maselo ang'onoang'ono, kutsegulanso gulu lapamwamba ndipo palibe gulu lalikulu lolimbana ndi TPU. Matauni ofananira oyenera TPU pali 1,4-fisiniol (Bdo), 1,4-Cycloxyathoxy, 1,4-Cyclohexy
Kusintha kugwiritsa ntchito tpu ngati wothandizira
Kuti muchepetse ndalama zolipirira ndikupeza ntchito zowonjezera, elyurethane a thermoplactirs elastomers zitha kugwiritsidwa ntchito monga momwe ambiri amagwirira ntchito zopweteka za andrmoplastic komanso zosinthidwa.
Chifukwa cha polarity yake yayitali, polarethane imatha kukhala yogwirizana ndi matebulo kapena ma ruble, monga chlorinated polyethylene (Cpe), omwe angagwiritsidwe ntchito kupanga zinthu zachipatala; Kuphatikizika ndi Abs kungalowe m'malo mwa ma armoplastics ogwiritsira ntchito; Mukamagwiritsidwa ntchito limodzi ndi polycarbonate (PC), ili ndi katundu monga kukana mafuta, kutsutsana kwa mafuta, komanso kuzoloweza popanga matupi agalimoto; Akaphatikizidwa ndi polyester, kulimba kwake kumatha kusintha; Kuphatikiza apo, zitha kukhala yogwirizana kwambiri ndi PVC, polymoxymethylene kapena pvdc; Polyester Polyirethane amatha kukhala ogwirizana ndi 15% Nitrile rabara kapena 40% Nitrile Prep / Preption; Polyther Polyirethane amathanso kugwirizana ndi 40% Nitrile Koma rabara kapena polyvinyl chloride chomata; Ikhoza kukhalanso yogwirizana ndi acrylonile styrene (San) Coptoli; Itha kupanga maukonde apakatikati (IPN) zopanga zomwe zili ndi ma polysiloxanes. Ambiri mwa ochita malonda omwe atchulidwa pamwambapa adapangidwa kale.
M'zaka zaposachedwa, pakhala kafukufuku wowonjezereka pakhumi ndi TPU ku China. Kuphatikizika kwa tpu ndi pom sikumangowonjezera kukana kwa kutentha kwambiri ndi makina ochitira mateke, komanso pompo. Ofufuza ena awonetsa kuti m'mayeso a TESILE a TESILE, poyerekeza ndi pom matrix, pom the TPU wasintha kuchokera ku brictor frity kupita ku Ductor kutsika. Kuphatikiza kwa TPU kumapepulanso pom ndi mawonekedwe okumbukira. Chigawo cha Prystalline cha POM chimakhala gawo la mawonekedwe a mawonekedwe a Amorphous TPU ndi POM amakhala gawo losinthika. Pamene kutentha kwa chikonzero ndi 165 ℃ ndi nthawi yochira ndi masekondi 120, kuchira kwa alloy kumafika pa 95%, ndipo kubwezeretsanso ndikopambana.
TPU ndi yovuta kukhala yogwirizana ndi zida zopanda polymer monga polyethylene, a ethylene mabodza, ufa wa rabani, ndipo sangagwiritsidwe ntchito kupanga ma coossites ndi ntchito yabwino. Chifukwa chake, njira zothandizira pamtunda monga plasma, Coana, cherea, chermer chonyowa, primer, lawi kapena mafuta otayika nthawi zambiri amagwiritsidwa ntchito pomaliza. Mwachitsanzo, malo omwe aku American Air Office ndi kampani ya mankhwala yatenga mafuta a F2 / O2 Active Church Order Order Order Polyestlene Ndipo F2 / O2 Yogwira mpweya pansi mankhwalawa amathanso kugwiritsa ntchito ulusi wamfupi kwambiri ndi kutalika kwa 6-35mm, yomwe imatha kusintha kuuma ndikuchepetsa upangiri wazosandulika.
Kodi madera a TPU ndi ati?
Mu 1958, kampani ya Soconzi ya Conrive (tsopano adatchulanso Lubezol) adalembetsa ku TPU Brand Evane koyamba. Kwa zaka 40 zapitazi, pakhala mayina oposa 20 padziko lonse lapansi, ndipo mtundu uliwonse umakhala ndi zinthu zingapo zingapo. Pakadali pano, zopanga zazikuluzikulu za TPU zopanga padziko lapansi ndi izi: Basf, Costro, Lubhizol, Hcntusman Corporation, McCinsey, etc.
Monga zabwino kwambiri, TPU ili ndi zinthu zingapo zotsika, zomwe zimagwiritsidwa ntchito kwambiri muzofunikira tsiku lililonse, zoseweretsa zamasewera, zoseweretsa, zokongoletsera, zokongoletsera, ndi minda ina. Pansipa pali zitsanzo zochepa.
Zida za nsapato
TPU imagwiritsidwa ntchito makamaka ngati zida za nsapato chifukwa chotupa chake chabwino komanso kuvala kukana. Zogulitsa za nsapato zomwe zili ndi TPU zimakonda kuvala zopangidwa pafupipafupi kuposa zopangidwa ndi nsapato zokhazikika, choncho zimagwiritsidwa ntchito kwambiri pazogulitsa nsapato zazitali, makamaka nsapato zamasewera komanso nsapato zazing'ono.
② Nbwerero
Chifukwa chofewa, mphamvu yabwino yotopa, imakhudzanso mphamvu yayikulu, ndikulimbana ndi kutentha kwambiri, ma tanks amapangira mafuta opanga, ndi zida zamakina.
③ chingwe
TPU imapereka misozi, kuvala kukana, ndi kugwada, ndi kutentha kwapamwamba komanso kochepa ndikulimbana ndi chinsinsi cha chinsinsi. Chifukwa chake mumsika waku China, zingwe zapamwamba monga zingwe zowongolera komanso zingwe zamagetsi zimagwiritsa ntchito tpus kuteteza zidutswa za mapangidwe a zingwe zovuta, ndipo mapulogalamu awo akuchulukirachulukira.
Zida zamankhwala
TPU ndi nkhani yotetezeka, yokhazikika komanso yokhazikika, yomwe sipadzakhala ndi Phtate ndi zinthu zina zovulaza, ndipo zimasamukira m'magazi kapena zakumwa zina mu catheter catheter kapena chithandizo chamankhwala choyambitsa mavuto. Kuphatikiza apo, kalasi yopangidwa mwapadera ndi jakisoni TPU imatha kugwiritsidwa ntchito mosavuta ndi kuwonongeka pang'ono mu zida za PVC.
Magalimoto ndi njira zina zoyendera
Mwa kuchotsa ndi kuphimba mbali zonse za nsalu ndi polyurethane thermomer eftomer engstomer effs rafts atcheza, ndi ntchito bwino kwambiri kuposa rafcanured raft. Polyurethane Thermoplastic elastomer olimbikitsidwa ndi ulusi wa galasi ungagwiritsidwe ntchito kupanga zigawo zopangidwa ndi thupi monga mbali zonse zagalimoto zokha, zikopa, bumpers, ma grilles.
Post Nthawi: Jan-10-2021