Kugwiritsa ntchito TPU Monga Flexibilizer

Pofuna kuchepetsa mtengo wazinthu ndikupeza ntchito zowonjezera,polyurethane thermoplasticma elastomers atha kugwiritsidwa ntchito ngati zida zolimbikitsira zomwe zimagwiritsidwa ntchito nthawi zambiri kulimbitsa zida zosiyanasiyana zamapulasitiki komanso zosinthidwa labala.

Chifukwapolyurethanepokhala polima kwambiri polar, akhoza n'zogwirizana ndi utomoni polar kapena rubbers, monga pamene ntchito osakaniza chlorinated polyethylene (CPE) kupanga mankhwala mankhwala;Kuphatikiza ndi ABS kungalowe m'malo kugwiritsa ntchito mapulasitiki a thermoplastic engineering;Ikagwiritsidwa ntchito limodzi ndi polycarbonate (PC), imakhala ndi zinthu monga kukana mafuta, kukana mafuta, komanso kukana mphamvu, ndipo imatha kugwiritsidwa ntchito kupanga matupi agalimoto;Kusakaniza ndi poliyesitala kungapangitse kulimba kwake;Kuonjezera apo, ikhoza kukhala yogwirizana ndi polyvinyl chloride, polyoxymethylene (POM), kapena polyvinylidene chloride;Polyester polyurethane akhoza bwino n'zogwirizana ndi 15% nitrile mphira kapena 40% nitrile mphira / polyvinyl mankhwala enaake osakaniza mphira;Polyether polyurethane ingakhalenso yogwirizana ndi 40% nitrile labala / polyvinyl kolorayidi kuphatikiza zomatira;Ikhozanso kukhala yogwirizana ndi acrylonitrile styrene (SAN) copolymers;Itha kupanga mawonekedwe a interpenetrating network (IPN) okhala ndi ma polysiloxanes okhazikika.Zomatira zosakanikirana zomwe zatchulidwa pamwambapa zapangidwa kale mwalamulo.
M'zaka zaposachedwa, pakhala pali kafukufuku wochulukirapo pakukula kwa POM ndiTPUku China.Kuphatikiza kwa TPU ndi POM sikungowonjezera kukana kutentha kwambiri komanso makina a TPU, komanso kumalimbitsa POM.Ofufuza ena awonetsa kuti pamayesero opunduka osweka, poyerekeza ndi matrix a POM, ma aloyi a POM okhala ndi TPU owonjezera amasintha kuchoka ku brittle fracture kupita ku ductile fracture.Kuphatikiza kwa TPU kumapangitsanso POM kukhala ndi magwiridwe antchito amakumbukidwe.Chigawo cha crystalline cha POM chimagwira ntchito ngati gawo lokhazikika la kukumbukira mawonekedwe, pomwe gawo la amorphous la amorphous TPU ndi POM limagwira ntchito ngati gawo losinthika.Pamene kutentha kwakuyankhidwa ndi 165 ℃ ndipo nthawi yochira ndi 120 s, kuchira kwa alloy kumafika pa 95%, ndipo zotsatira zake zimakhala zabwino kwambiri.
TPU ndizovuta kuti zigwirizane ndi zinthu zopanda polima monga polyethylene, polypropylene, mphira wa ethylene propylene, mphira wa butadiene, mphira wa isoprene, kapena ufa wa rabara wotayika, ndipo sungathe kupanga zinthu zophatikizika ndi ntchito yabwino.Chifukwa chake, njira zochizira pamwamba monga plasma, kutulutsa kwa corona, chemistry yonyowa, primer, malawi, kapena mpweya wotuluka nthawi zambiri amagwiritsidwa ntchito pomaliza.Mwachitsanzo, American mpweya mankhwala ndi makampani mankhwala akhoza kwambiri kusintha modulus kupinda, mphamvu kumakanika, ndi kuvala kukana kopitilira muyeso-mkulu maselo kulemera polyethylene ufa wabwino ndi molecular kulemera kwa 3-5 miliyoni pambuyo F2/O2 yogwira gasi pamwamba mankhwala, ndi kuwonjezera pa polyurethane elastomers mu chiŵerengero cha 10%.Komanso, F2/O2 yogwira gasi yogwira ntchito imatha kugwiritsidwa ntchito pazingwe zazifupi zazifupi zomwe zili ndi kutalika kwa 6-35mm zomwe tazitchula pamwambapa, zomwe zitha kukulitsa kuuma ndi kung'amba kulimba kwazinthu zophatikizika.