Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN, ATBN thiab HTPN

Cov Ntsiab Lus Tseem Ceeb

• CTBN ua rau epoxy tawv dua, ua rau lub zog cuam tshuam ntau dua 692%. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau daim ntawv thov.
• Siv cov CTBN kom raug, kwv yees li 20%, ua rau muaj kev ywj pheej thiab kev tawv tsis muaj kev cuam tshuam rau lub zog. Kev sim ntau yam sib txawv tuaj yeem ua rau muaj txiaj ntsig zoo tshaj plaws.
• CTBN muaj ntau yam thiab yooj yim sib tov nrog epoxy, ua rau nws yog ib qho kev xaiv zoo rau ntau yam haujlwm. Xav txog ATBN lossis HTPN rau cov kev xav tau tshwj xeeb, tab sis CTBN feem ntau yog qhov nyiam dua.

Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN, ATBN, thiab HTPN

CTBN yog dab tsi?

CTBN sawv cev rau carboxyl-terminated butadiene acrylonitrile. Cov khoom siv no yog cov roj hmab ua kua uas cov kws tshawb fawb siv los ua cov epoxy resins tawv dua. CTBN muaj cov pawg carboxyl nyob rau ntawm qhov kawg ntawm nws cov saw hlau. Cov pawg no pab CTBN ua haujlwm nrog epoxy resins. CTBN feem ntau muaj qhov hnyav molecular ntawm 2000 thiab 3000. Cov neeg feem ntau xaiv CTBN vim nws txhim kho qhov yooj ywm thiab lub zog cuam tshuam ntawm epoxy. Hauv Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN, cov kws tshawb fawb pom tias CTBN tuaj yeem ua rau muaj kev cuam tshuam ntawm epoxy resins ntau ntxiv.

ATBN yog dab tsi?

ATBN sawv cev rau amino-terminated butadiene acrylonitrile. Cov khoom siv no yog lwm hom roj hmab ua kua. ATBN muaj cov pab pawg amino nyob rau ntawm qhov kawg ntawm nws cov saw hlau. Cov pab pawg no pab ATBN ua rau cov tshuaj epoxy resins sib txawv ntawm CTBN. ATBN tsis muaj qhov hnyav molecular tshwj xeeb hauv feem ntau ntawm kev tshawb fawb. Tib neeg siv ATBN los txhim kho qhov tawv ntawm epoxy, tab sis nws ua haujlwm zoo tshaj plaws hauv cov xwm txheej tshwj xeeb. Hauv Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN, ATBN, thiab HTPN, ATBN qhia cov txiaj ntsig zoo rau qee qhov kev siv.

HTPN Yog Dab Tsi?

HTPN sawv cev rau hydroxyl-terminated polybutadiene nitrile. Cov khoom siv no kuj yog cov roj hmab ua kua. HTPN muaj cov pab pawg hydroxyl ntawm qhov kawg ntawm nws cov saw hlau. Cov pab pawg no pab HTPN sib txuas nrog epoxy resins. HTPN tsis tshua muaj ntau dua li CTBN thiab ATBN. Tib neeg siv HTPN thaum lawv xav tau cov khoom tshwj xeeb hauv lawv cov epoxy resins. HTPN tuaj yeem ua rau epoxy yoog tau thiab tawv dua, tab sis nws tsis nrov npaum li CTBN.

Cov Modifiers no Ua Li Cas Thiaj Ua Rau Epoxy Roughened?

CTBN, ATBN, thiab HTPN txhua yam pab ua kom cov epoxy resins tawv dua. Lawv ua qhov no hauv ob peb txoj hauv kev tseem ceeb:

• CTBN tsim cov tshuaj sib txuas nrog epoxy. Cov pawg carboxyl hauv CTBN ua rau cov pawg epoxy sib txuas ua ke.
• Thaum lub sijhawm kho, CTBN sib cais ua cov roj hmab me me hauv epoxy. Cov txheej txheem no hu ua kev sib cais theem me me. Cov khoom me me no pab nqus lub zog thaum epoxy raug ntaus lossis khoov.
• Qhov saum npoo ntawm cov roj hmab me me pab cov epoxy nplaum zoo dua rau lwm yam khoom siv, xws li cov carbon fibers. Qhov no tsim kom muaj kev sib txuas zoo thiab pab cov epoxy tiv taus kev tawg.
• ATBN thiab HTPN ua haujlwm zoo sib xws, tab sis lawv cov pab pawg kawg (amino lossis hydroxyl) hloov pauv lawv cov tshuaj tiv thaiv nrog epoxy li cas. Qhov no tuaj yeem cuam tshuam rau cov khoom kawg ntawm cov resin.

Cov neeg feem ntau siv cov khoom hloov kho no sib txawv kom tau txais cov txiaj ntsig zoo tshaj plaws. Piv txwv li:

• Ntxiv CTBN ntau ntxiv tuaj yeem ua rau qhov kub uas epoxy kho tau. Nws kuj tseem tuaj yeem txo qis lub zog uas xav tau rau qhov kev ua haujlwm.
• Yog tias ib tug neeg ntxiv CTBN ntau dhau, cov epoxy tuaj yeem poob qee lub zog. Qhov tawv zoo tshaj plaws feem ntau tshwm sim ntawm li 20% CTBN.
• Thaum muaj 20% CTBN, cov epoxy ncab ntau dua ua ntej tawg. Qhov no txhais tau tias nws tuaj yeem nqus tau ntau lub zog thiab tsis tshua muaj feem yuav tawg.

Lub Tswv Yim: Qhov ntau npaum li cas ntawm cov modifier yog nyob ntawm txoj haujlwm. Tsawg dhau yuav tsis ua rau cov epoxy tawv txaus. Ntau dhau yuav ua rau cov epoxy qaug zog.

Daim Ntawv Tshawb Fawb Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN qhia tau hais tias CTBN muab qhov sib npaug zoo tshaj plaws ntawm kev tawv thiab lub zog rau feem ntau ntawm kev siv. ATBN thiab HTPN tuaj yeem ua haujlwm tau zoo rau cov kev xav tau tshwj xeeb, tab sis CTBN yog qhov kev xaiv feem ntau.

CTBN, ATBN, thiab HTPN Ua Haujlwm Li Cas hauv Epoxy Resins

CTBN Toughening Mechanism

CTBN hloov txoj kev uas cov epoxy resins ua haujlwm. Cov kws tshawb fawb ntxiv CTBN rau epoxy, thiab nws tsim cov khoom me me uas zoo li roj hmab hauv cov resin. Cov khoom me me no pab cov epoxy nqus lub zog thaum nws raug ntaus lossis khoov. Cov pawg carboxyl ntawm qhov kawg ntawm CTBN saw hlau cuam tshuam nrog cov epoxy, ua rau muaj kev sib txuas zoo. Qhov kev cuam tshuam no tsim ib lub network uas tuav cov khoom roj hmab rau hauv qhov chaw. Qhov tshwm sim yog epoxy uas khoov ntau dua ua ntej tawg. Ntau tus kws tshawb fawb hauv Kev Kawm Sib Piv ntawm Kev Ua Haujlwm Epoxy Toughening ntawm CTBN pom tias CTBN muab qhov sib xyaw zoo tshaj plaws ntawm kev tawv thiab lub zog.

Lus Cim: CTBN ua haujlwm zoo vim nws kis tau zoo hauv epoxy thiab tsim cov kev sib txuas zoo.

ATBN Toughening Mechanism

ATBN siv cov amino pawg los ua tshuaj nrog epoxy resins. Cov pawg no pab ATBN sib txuas nrog epoxy thaum lub sijhawm kho. ATBN kuj tsim cov khoom ua los ntawm roj hmab, tab sis txoj kev uas nws sib txuas txawv ntawm CTBN. Cov amino pawg tuaj yeem ua rau epoxy kho sai dua. ATBN txhim kho kev tawv, tab sis nws ua haujlwm zoo tshaj plaws hauv cov xwm txheej tshwj xeeb. Qee tus neeg siv xaiv ATBN thaum lawv xav tau kev kho sai dua lossis kev sib txuas tshwj xeeb.

• ATBN tuaj yeem ua rau cov epoxy yooj ywm dua.
• Nws yuav tsis muab lub zog cuam tshuam ntau npaum li CTBN.

HTPN Toughening Mechanism

HTPN siv cov pab pawg hydroxyl los sib txuas nrog epoxy. Cov pab pawg no pab HTPN sib xyaw zoo nrog cov resin. HTPN tsim cov khoom ua los ntawm roj hmab, ib yam li CTBN thiab ATBN. Cov hydroxyl pawg tuaj yeem ua rau epoxy yooj ywm dua. HTPN tsis tshua muaj, tab sis nws pab thaum cov neeg siv xav tau cov khoom tshwj xeeb. HTPN tuaj yeem txhim kho kev tawv, tab sis nws yuav tsis ua haujlwm zoo li CTBN rau kev siv dav dav.

Kev Kawm Sib Piv Txog Kev Ua Haujlwm Epoxy Toughening ntawm CTBN: Kev Sib Txawv ntawm Mechanical thiab Practical

Kev Sib Piv Txog Cov Khoom Siv Kho Tshuab

CTBN, ATBN, thiab HTPN txhua tus hloov cov khoom siv kho tshuab ntawm epoxy resins hauv ntau txoj kev sib txawv. CTBN sawv tawm rau nws lub peev xwm los txhawb nqa ob qho tib si toughness thiab elasticity. Thaum ntxiv CTBN, cov epoxy tuaj yeem nqus tau ntau lub zog ua ntej tawg. Qhov no txhais tau tias cov khoom siv yuav tsis tawg thaum muaj kev ntxhov siab. ATBN kuj txhim kho toughness, tab sis nws tsis ua rau lub zog cuam tshuam ntau npaum li CTBN. HTPN pab ua rau epoxy yooj ywm dua, tab sis nws tsis phim qhov toughness uas CTBN muab.

Cov kws tshawb fawb hauv Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN pom tias CTBN-modified epoxy resins qhia txog kev nce ntxiv ntawm lub zog cuam tshuam. Cov roj hmab me me uas tsim los ntawm CTBN pab epoxy khoov es tsis txhob tawg. ATBN thiab HTPN ua haujlwm tau zoo rau cov kev xav tau tshwj xeeb, tab sis CTBN muab qhov sib npaug zoo tshaj plaws rau feem ntau ntawm kev siv.

Kev Sib Haum Xeeb nrog Epoxy

Txoj kev uas txhua yam khoom sib xyaw nrog epoxy yog qhov tseem ceeb. Kev sib haum xeeb zoo txhais tau tias cov khoom sib xyaw kis tau zoo thiab tsim kom muaj kev sib txuas zoo nrog cov resin.

• CTBN ua rau qhov kub thiab txias tshaj plaws (Tp) nce ntxiv hauv cov qauv epoxy resin.
• CTBN txo qhov enthalpy tag nrho (ΔH), uas txhais tau tias qhov tshuaj tiv thaiv siv zog tsawg dua.
• Cov txheej txheem hloov kho CTBN qhia tau tias Tp siab dua (piv txwv li, C25: Tp = 167.4 ° C) thiab qis dua ΔH (piv txwv li, ΔH = 264.6 J g−1) piv rau cov epoxy huv.
• Ntxiv CTBN ua rau muaj kev nce ntxiv ntawm viscosity, uas cuam tshuam rau qhov yooj yim ntawm epoxy ua tiav.
• Lub sijhawm gel rau CTBN-modified epoxy ntev dua (kwv yees li 18 feeb) dua li rau cov epoxy huv si.
• Qhov muaj h-BN tsis hloov lub sijhawm gel ntau, yog li CTBN tseem tuaj yeem muab kev ua tau zoo sib npaug.

CTBN ua haujlwm zoo nrog ntau hom epoxy resins. Qhov no ua rau nws yog qhov kev xaiv nrov hauv Kev Kawm Sib Piv ntawm Epoxy Toughening Performance ntawm CTBN. ATBN thiab HTPN kuj tuaj yeem sib xyaw nrog epoxy, tab sis lawv cov teebmeem ntawm kev kho thiab cov khoom kawg yog txawv.

Kev Ua thiab Kev Tswj

Kev ua thiab kev tuav yog qhov tseem ceeb rau txhua tus neeg siv cov kev hloov kho no. CTBN hloov txoj kev uas epoxy ua thaum lub sijhawm sib tov thiab kho.

Lub tshuab ua kom tawv ntawm CTBN muaj xws li kev tshuaj tiv thaiv thaum lub sijhawm ua ntej-polymer synthesis, qhov twg CTBN tshuaj tiv thaiv nrog epoxy los tsim ib lub block copolymer. Cov txheej txheem no txhim kho cov khoom siv kho tshuab ntawm cov khoom sib xyaw los ntawm kev tsim cov roj hmab sib cais uas txhim kho kev tawv.

CTBN cuam tshuam rau qhov viscosity thiab lub sijhawm gel ntawm epoxy, nrog rau qhov nce ntxiv ntawm viscosity thaum CTBN loading nce, uas ua rau cov txheej txheem nyuaj. Lub sijhawm gel rau cov epoxy huv si yog li 18 feeb, tab sis kev ntxiv CTBN ua rau lub sijhawm no ntev dua vim muaj viscosity ntau ntxiv thiab kev hloov pauv ntawm theem.

Cov neeg uas siv CTBN yuav tsum sib tov kom zoo kom tau txais txiaj ntsig zoo tshaj plaws. Qhov viscosity siab dua tuaj yeem ua rau kev nchuav thiab nthuav dav nyuaj dua. Lub sijhawm ntev dua ntawm gel txhais tau tias cov neeg siv muaj sijhawm ntau dua los ua haujlwm nrog epoxy ua ntej nws tawv. ATBN thiab HTPN yuav tsis hloov viscosity thiab lub sijhawm gel ntau npaum li CTBN, yog li lawv tuaj yeem yooj yim dua rau kev tswj hwm hauv qee kis.

Tus nqi thiab qhov muaj

CTBN yooj yim nrhiav thiab yuav. Muaj ntau lub tuam txhab ua CTBN vim nws ua haujlwm zoo nrog ntau hom epoxy resins. Qhov muaj ntau yam no ua rau CTBN yog qhov kev xaiv zoo tshaj plaws rau kev lag luam. Qhov ruaj khov ntawm CTBN hauv epoxy txhais tau tias cov khoom ua nrog nws ua tib yam txhua lub sijhawm. ATBN thiab HTPN kuj muaj, tab sis lawv yuav kim dua lossis nyuaj dua rau nrhiav. Qee tus neeg siv xaiv ATBN lossis HTPN rau cov haujlwm tshwj xeeb, tab sis feem ntau xaiv CTBN rau kev siv dav dav.

Daim Ntawv Tshawb Fawb Sib Piv Txog Kev Ua Haujlwm Epoxy Toughening ntawm CTBN qhia tau hais tias CTBN yog qhov hloov kho nyiam rau ntau yam. Nws muaj cov khoom siv kho tshuab muaj zog, sib xws zoo, thiab yooj yim rau cov neeg yuav khoom.

Vim li cas CTBN feem ntau yog qhov hloov kho uas nyiam dua

Cov txiaj ntsig tseem ceeb ntawm CTBN

CTBN yog ib qho kev xaiv zoo tshaj plaws rau kev ua kom cov epoxy resins tawv. Ntau tus kws tshawb fawb thiab cov kws tshaj lij hauv kev lag luam nyiam CTBN vim nws muaj ntau yam txiaj ntsig tseem ceeb:

• CTBN sib xyaw zoo nrog cov epoxy resins uas tsis tau kho. Cov yam ntxwv no ua rau nws yooj yim ntxiv CTBN rau hauv epoxy ua ntej kho.
• Thaum lub sijhawm kho, CTBN sib cais ua tej daim me me, puag ncig. Cov khoom me me no pab cov epoxy nqus tau lub zog thiab tiv taus kev tawg.
• CTBN ua haujlwm ua ib qho plasticizer. Nws txo qhov kub hloov pauv iav (Tg) ntawm epoxy. Qhov kev hloov pauv no ua rau epoxy yooj ywm dua thiab txhim kho nws qhov kev tiv thaiv kev cuam tshuam.

CTBN pab tsim cov khoom siv epoxy uas muaj zog thiab yoog tau. Cov yam ntxwv no ua rau CTBN yog qhov kev xaiv nrov rau ntau yam kev siv, los ntawm kev tsim kho mus rau cov khoom siv hluav taws xob.

Cov Kev Txwv ntawm CTBN

CTBN kuj muaj qee qhov tsis zoo uas cov neeg siv yuav tsum xav txog. Kev tshawb fawb qhia tau tias CTBN tuaj yeem ua rau muaj teeb meem loj heev ntawm viscosity. Thaum ntxiv CTBN, qhov sib tov yuav tuab dua. Qhov kev nce ntxiv ntawm viscosity no tuaj yeem ua rau nws nyuaj rau sib tov nrog lwm cov khoom ntxiv. CTBN kuj ua rau lub sijhawm gel ntev dua thaum lub sijhawm kho. Lub sijhawm ntev dua ntawm gel txhais tau tias cov epoxy siv sijhawm ntau dua los khov, uas tuaj yeem ua rau qeeb qeeb ntawm kev tsim khoom. Cov yam no tuaj yeem txwv tsis pub siv cov epoxies CTBN-modified li cas thiab qhov twg. Cov neeg siv yuav tsum sib npaug cov txiaj ntsig ntawm kev tawv thiab kev ywj pheej nrog rau cov teeb meem hauv kev ua tiav.

Xaiv Tus Hloov Kho Kom Zoo Rau Koj Daim Ntawv Thov

Kev Xaiv Zoo Tshaj Plaws rau Kev Siv Dav Dav

CTBN ua haujlwm zoo rau feem ntau cov kev xav tau epoxy toughening. Muaj ntau tus engineers thiab cov kws tshawb fawb xaiv CTBN vim nws txhim kho ob qho tib si lub zog thiab kev ywj pheej. CTBN reacts nrog epoxy los tsim ib lub block copolymer. Qhov kev tshuaj tiv thaiv no tsim cov bonds muaj zog ntawm qhov interface, uas pab cov khoom tiv taus kev tawg. Thaum CTBN siv rau ntawm qib zoo, xws li 25%, lub epoxy tuaj yeem qhia tau 33% nce ntxiv hauv lub zog tensile shear thiab 528% nce hauv lub zog cuam tshuam. CTBN kuj pab hauv cov khoom sib xyaw nrog carbon fiber los ntawm kev ua haujlwm ntawm ntau qhov ntsuas kom ua rau cov khoom tawv dua. Cov yam ntxwv no ua rau CTBN yog qhov kev xaiv txhim khu kev qha rau ntau qhov project.

Thaum Twg Yuav Tsum Xav Txog ATBN lossis HTPN

Qee qhov project xav tau cov khoom tshwj xeeb. ATBN tuaj yeem pab tau thaum kho tau sai dua tseem ceeb lossis thaum tus neeg siv xav tau kev ywj pheej ntau dua. HTPN ua haujlwm zoo yog tias lub hom phiaj yog kom muaj kev ywj pheej ntau dua yam tsis poob lub zog ntau dhau. Ob qho tib si ATBN thiab HTPN tuaj yeem pab tau rau cov ntawv thov tshwj xeeb, xws li cov khoom siv hluav taws xob lossis cov txheej uas xav tau kev mos mos ntxiv. Cov neeg siv yuav tsum saib cov khoom kawg xav tau ua ntej xaiv cov kev hloov kho no.

Cov Lus Qhia rau Kev Xaiv Tus Neeg Sawv Cev Toughening

Kev xaiv cov khoom hloov kho kom raug yuav tsum tau xav zoo zoo. Muaj ntau tus neeg ua yuam kev los ntawm kev xaiv raws li cov lus nrov lossis siv cov khoom hloov kho ntau dhau. Lwm tus tsis nco qab xyuas seb cov khoom hloov kho sib xyaw thiab nthuav dav li cas hauv epoxy. Nov yog qee cov lus qhia:

• Xyuas seb qhov kev hloov kho puas cuam tshuam li cas rau kev ua tiav, xws li kev sib tov thiab kev kho.
• Sim ntau yam sib txawv kom nrhiav tau qhov sib npaug zoo tshaj plaws ntawm kev tawv thiab lub zog.
• Saib seb qhov kev hloov kho zoo li cas hauv epoxy.
• Tsis txhob xav tias ib qho kev hloov kho yuav daws tau txhua qhov teeb meem.
• Ib txwm phim qhov kev hloov kho rau qhov project xav tau.

Lub Tswv Yim: Kev sim thiab kev ntsuam xyuas zoo ua rau muaj txiaj ntsig zoo dua thiab tsawg dua qhov xav tsis thoob.

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CTBN muab cov epoxy resins muaj zog thiab yooj yim ua. Cov neeg siv feem ntau xaiv CTBN rau cov haujlwm dav dav. ATBN thiab HTPN ua haujlwm zoo dua rau cov kev xav tau tshwj xeeb. Cov neeg siv yuav tsum xyuas lawv qhov project cov kev xav tau rau qhov ruaj khov, kev tuav, thiab tus nqi ua ntej xaiv cov khoom hloov kho.

Lub Tswv Yim: Qhov kev xaiv zoo ua rau muaj txiaj ntsig zoo dua.

Cov Lus Nug Feem Ntau

CTBN sawv cev rau dab tsi?

CTBN txhais tau tias carboxyl-terminated butadiene acrylonitrile. Cov kws tshawb fawb siv nws los ua cov epoxy resins tawv dua thiab yoog tau dua.

Puas yog CTBN tuaj yeem sib xyaw nrog lwm cov epoxy resin?

Feem ntau cov epoxy resins ua haujlwm zoo nrog CTBN. Cov neeg siv yuav tsum sim ib pawg me me ua ntej kom paub tseeb tias sib tov zoo thiab ua haujlwm tau zoo.

CTBN puas hloov xim ntawm epoxy?

Feem ntau CTBN tsis hloov xim ntau. Qee cov resins yuav zoo li me ntsis pos huab tom qab ntxiv CTBN, tab sis qhov cuam tshuam yog me ntsis.