Ekonol Polyester

Ekonol Polyester Resin yog ib qho ntawm thawj txoj kev lag luam ua kua dej kua hluav taws xob, cov tsev neeg ntawm cov ntaub ntawv paub rau lawv qhov tshwj xeeb txoj kev nruj thiab cov thermal stability. Cov polymer no tau tsim nyob rau xyoo 1960 thiab muaj npe tom qab Dr. James Economy, thaum lub sijhawm ntawd yog lub taub hau ntawm kev tshawb fawb ntawm Lub Tuam Txhab Carborundum. Saint-Gobain tau txais kev lag luam ntawm Ekonol hauv nruab nrab xyoo 1990.

Cov homopolymer no yog ua raws p-oxybenzoyl rov ua dua tshiab thiab yog ib qho tso tawm ntawm tus kheej. Ekonol yog cov siv hluav taws xob ntau tshaj plaws tab sis tsis muaj lub ntsiab lus tsis txaus txawm tias muaj txog li 900 - 1000 ° F. Ntws thiab nkag yog zoo li tsis muaj nyob hauv qab nws qhov hloov kho siv lead ua kub ntawm 625 ° F.

Fabrication yog ua tiav los ntawm cov khoom siv hlau tsis yog ua ib txwm siv rau polymers; qhia txog cov cuab yeej muaj zog ntawm Ekonol tau ntsuas ntawm cov qauv, uas tau nyem sintered ntawm 800 ° F thiab 10,000 psi. Cov moulded polymer muaj qhov ua kom zoo dua qub ntawm 5,500 psi nrog cov qauv tsim ntawm 1x10 ⁶ psi thiab qhov ntom ntawm 1.44 gm / cc. Ekonol muaj lub zog compressive ntawm 15,000 psi thiab qhov siab zog no tau ua rau muaj peev xwm zoo heev thauj khoom muaj peev xwm. Qhov sib tshooj ntawm thermal nthuav tawm ntawm 3.3 x 10-5 hauv / nyob rau hauv / ° F yog kwv yees tawm los ntawm chav sov mus txog 575 ° F. Qhov tsis muaj aliphatic hydrogen ua rau nws zoo tshaj thermal thermal hauv huab cua. Ekonol yauv yuag tshaj plaws ntawm 3,5% thaum kub hauv huab cua los ntawm chav tsev kub txog 750 ° F thiab tuav rau 1 teev ntawm qhov kub. Qhov siab tshaj plaws tas mus li qhov kev pabcuam kub kub yog 500 - 600 ° F. Kev pabcuam siab tshaj li qhov cuam tshuam tau kub yog 600 - 750 ° F. Ekonol muaj cov kuab tshuaj tiv thaiv zoo nrog kev zam tshwj xeeb ntawm sulfuric acid thiab muaj zog alkalis. Cov dej nqus kom tsawg ntawm 0.4% tom qab 500 teev ntawm 212 ° F. Ekonol Polyester yog kev ua kom nws tus kheej thiab muaj kev sib txhuam zoo heev thiab hnav cov khoom zoo.

Ekonol Polyester yog cov polymer ruaj khov kho kub heev, ua kom yooj yim kom tov / nplua nrog lwm cov khoom kub. Thaum muab sib xyaw nrog polytetrafluoroethylene (piv txwv li PTFE); nws tsim cov khoom sib txuas uas muaj qhov kub thiab txias zoo thiab hnav cov khoom tiv thaiv tsis kam. Ekonol Polyester / PTFE sib xyaw yuav tsis coj hlau qhov chaw thiab tiv thaiv tus kheej hnav zoo dua li lwm cov PTFE muaj pes tsawg leeg. Cov ntawv thov rau Ekonol Polyester / PTFE cov khoom sib xyaw yog txawv thiab suav nrog cov khoom ntim, cov nplhaib ntim khoom siv, "0" lub nplhaib sib khi, lub caij nplooj ntoo hlav ntim, cov ntsaws ruaj ruaj, cov ntsaws ruaj ruaj rau cov menyuam thiab rotors lossis vanes ntawm cov txheej txheem twj. Ekonol Polyester / PTFE ua haujlwm tau zoo tshaj plaws hauv ib puag ncig ib puag ncig nyuaj qhov twg hnav tsis kam, qhov ntev ruaj khov thiab corrosion kuj yog qhov tseem ceeb.