Cov nplaum tshiab uas muaj zog heev pab koj cov haujlwm kav ntev dua
Cov Ntsiab Lus Tseem Ceeb
- Cov nplaum uas muaj zog heev xws li HTBN tiv taus kev ntxhov siab, kev hloov pauv kub, thiab ib puag ncig hnyav. Lawv ua rau koj cov haujlwm kav ntev dua thiab txo kev kho.
- Cov qauv tshwj xeeb ntawm HTBN pab tiv thaiv kom tsis txhob muaj kab nrib pleb loj hlob. Nws ua rau cov pob qij txha yoog tau thiab muaj zog, txawm tias muaj kev ntxhov siab lossis qaug zog ntau zaus los xij.
- Kev xaiv cov nplaum uas ruaj khov ua rau cov nplaum ruaj khov dua. Lawv ua tau zoo dua cov nplaum ib txwm los ntawm kev tiv taus kev qaug zog thiab ua kom cov pob qij txha txuas tau ntev dua.
Cov nplaum tshiab uas muaj zog heev: Yuav ua li cas HTBN tiv thaiv kev qaug zog tsis ua haujlwm
Kev ua tsis tiav ntawm cov nplaum yog dab tsi?
Kev ua tsis tau zoo ntawm cov nplaum tshwm sim thaum cov nplaum tsis muaj zog lossis tawg tom qab ntsib kev ntxhov siab ntau zaus dhau sijhawm. Koj pom qhov no hauv ntau qhov project engineering thiab kev tsim kho. Cov laj thawj feem ntau suav nrog:
- Cyclic loading, uas txhais tau tias qhov sib txuas ntsib kev thawb, rub, lossis kev co ntau zaus.
- Kev thauj khoom zoo li qub, tseem hu ua creep, qhov twg lub zog tas li ua rau cov nplaum maj mam hloov pauv.
- Kev voj voog kub, uas tshwm sim thaum qhov kub hloov pauv ua rau cov ntaub ntawv nthuav dav thiab cog lus.
- Kev laus ntawm ib puag ncig, qhov twg cov dej noo, tshav ntuj, lossis cov tshuaj lom neeg maj mam ua rau cov nplaum puas.
Daim ntawv tshuaj xyuas qhia tau hais tias cov pob qij txha ib lub voj voog muaj ntau hom kev ua tsis tiav hauv qab kev thauj khoom qaug zog, nrog rau kev ua tsis tiav ntawm kev sib koom ua ke / kev nplaum qhia txog lub neej qaug zog ntev dua nrog kev sib tshooj ntev dua, thaum kev ua tsis tiav ntawm kev sib txuas qhia txog kev hloov pauv sib txawv.
Koj yuav tsum nkag siab txog cov laj thawj no vim tias lawv tuaj yeem ua rau muaj kev tawg lossis tawg hauv cov txheej nplaum. Raws li lub sijhawm dhau mus, cov kab nrib me me no loj hlob thiab ua rau cov ntawv sib txuas tsis muaj zog. Yog tias koj tsis daws cov teeb meem no, koj qhov project yuav ua tsis tiav sai dua li qhov xav tau.
Vim li cas qhov kev ua tsis tiav ntawm kev qaug zog ua rau lub neej ua haujlwm luv dua
Kev ua tsis tiav ntawm cov nplaum tsis yog ua rau muaj teeb meem me me xwb. Nws tuaj yeem ua rau muaj teeb meem loj rau koj qhov project. Thaum cov nplaum sib txuas tsis ua haujlwm, koj yuav tsum kho lossis hloov cov khoom, uas siv sijhawm thiab nyiaj txiag. Kev ua tsis tiav ntawm cov nplaum tuaj yeem ua rau kev sib txuas tsis ua haujlwm sai sai, uas yuav tsum tau kho thiab hloov pauv kim heev. Kev xaiv cov nplaum yog qhov tseem ceeb; piv txwv li, cov epoxies tawv yog paub txog lawv lub tshuab tawg, uas ua rau muaj kev ruaj khov. Polyurethanes, thaum yoog tau, tuaj yeem nqus cov kev co thiab pab txhawb kev nthuav dav thermal, ua rau lawv haum rau cov ntawv thov nrog ntau yam kev ntxhov siab. Kev kho kom zoo ntawm qhov chaw yog qhov tseem ceeb los tiv thaiv kev ua tsis tiav ntawm cov nplaum, thiab qhov tuab ntawm cov txheej nplaum yuav tsum tau ua kom zoo tshaj plaws kom tsis txhob ua tsis tiav. Kev nqis peev rau cov nplaum zoo tuaj yeem txo cov nqi kho yav tom ntej.
Tej zaum koj yuav tsis pom qhov ua tsis tiav ntawm kev qaug zog tam sim ntawd. Lawv nyuaj rau pom thaum ntxov, uas ua rau muaj kev pheej hmoo ntawm kev tawg tam sim ntawd. Cov kev ua tsis tiav no tuaj yeem txo qhov kev ua haujlwm ntawm cov pob qij txha thiab txawm tias ua rau muaj qhov tshwm sim loj heev. Qee zaum, kev ua tsis tiav ntawm kev qaug zog suav txog 50-90% ntawm tag nrho cov kev ua tsis tiav ntawm cov pob qij txha uas sib txuas nrog cov nplaum. Kev tawg, lossis kev sib cais ntawm cov khaubncaws sab nraud povtseg, tuaj yeem tshwm sim thaum cov kab nrib pleb loj hlob hauv cov nplaum. Qhov no ua rau kev tshuaj xyuas thiab kho nyuaj dua thiab tuaj yeem ua rau kev ua tsis tiav sai.
Yuav ua li cas HTBN tus qauv tshwj xeeb tiv taus kev qaug zog
Cov nplaum tshiab uas muaj zog heev, zoo li cov uas ua los ntawm HTBN, muab qhov zoo dua rau koj cov haujlwm. HTBN sawv cev rau hydroxy-terminated roj hmab nitrile butadiene ua kua. Cov khoom siv no muaj cov qauv tshwj xeeb uas pab nws tiv thaiv kev qaug zog. Nov yog li cas HTBN ua haujlwm:
- HTBN muaj cov pab pawg hydroxyl nyob rau ob qho kawg ntawm nws cov saw molecular. Cov pab pawg no pab nws sib txuas zoo nrog lwm cov ntaub ntawv.
- Lub hauv paus ntawm HTBN yog ua los ntawm cov roj hmab nitrile uas yoog tau. Qhov no ua rau nws ruaj khov thiab cia nws nyob ywj pheej txawm tias nyob rau hauv qhov kub qis.
- HTBN muaj acrylonitrile, uas ua rau roj tsis kam thiab yooj ywm dua.
- Qhov muaj cov pab pawg epoxy kawg tso cai rau HTBN kom sib txuas nrog cov epoxy resins, ua rau cov nplaum tawv dua.
- HTBN muaj kev tiv taus roj zoo, tiv taus kub, tiv taus hnav, thiab muaj zog nplaum.
Thaum koj siv cov nplaum tshiab uas muaj zog heev, koj tau txais cov ntaub ntawv uas tuaj yeem tiv taus kev ntxhov siab ntau zaus, kev hloov pauv kub, thiab ib puag ncig hnyav. Cov qauv tshwj xeeb ntawm HTBN pab tiv thaiv kom tsis txhob muaj kab nrib pleb loj hlob. Nws kuj tseem ua rau cov txheej nplaum muaj zog thiab yoog tau. Qhov no txhais tau tias koj cov haujlwm kav ntev dua thiab xav tau kev kho tsawg dua.
Koj tuaj yeem pom cov txiaj ntsig ntawm HTBN hauv nws cov khoom siv kho tshuab. Piv txwv li, ntxiv 20% HTBN ua rau lub zog cuam tshuam nce 28.5% thiab tawg elongation los ntawm 46.8%. Txawm tias muaj 10% HTBN, tawg elongation nce 76.41%. Cov lej no qhia tau tias cov nplaum tshiab uas muaj lub zog siab tuaj yeem ncab thiab nqus lub zog yam tsis tawg.
| Vaj tse | Tus nqi nrog 20 wt% HTBN | Tus nqi nrog 10 wt% HTBN |
|---|---|---|
| Lub zog cuam tshuam | Nce ntxiv 28.5% | Tsis muaj |
| Rhuav tshem kev ncab | Nce ntxiv 46.8% | Nce ntxiv los ntawm 76.41% |
| Lub zog tensile | Poob ntawm 28.41% | Tsis muaj |
Koj tuaj yeem ntseeg siab rau cov nplaum tshiab uas muaj zog heev los tiv thaiv koj cov haujlwm kom tsis txhob qaug zog. HTBN pab koj cov ntawv sib txuas kom ruaj khov, yoog tau, thiab txhim khu kev qha, txawm tias ntsib teeb meem nyuaj los xij.
HTBN piv rau cov nplaum ib txwm muaj: Cov txiaj ntsig tiag tiag rau koj cov haujlwm
Qhov sib txawv tseem ceeb hauv kev ua tau zoo thiab kev ua haujlwm ntev
Thaum koj piv HTBN piv rau cov nplaum ib txwm muaj, qhov sib txawv tau pom tseeb. Cov nplaum ib txwm muaj feem ntau tsis muaj qhov tawv uas xav tau los tiv taus kev ntxhov siab ntau zaus. Lawv yuav ua haujlwm tau zoo thaum xub thawj tab sis feem ntau yuav qaug zog dhau sijhawm nyob rau hauv kev thauj khoom lossis kev hloov pauv thermal. Qhov sib txawv, cov nplaum tshiab uas muaj zog heev, zoo li cov uas ua los ntawm HTBN, muaj kev ywj pheej thiab kev ua siab ntev dua. Lawv nqus tau lub zog los ntawm kev cuam tshuam thiab kev co zoo dua, txo qhov kev pheej hmoo ntawm kev tawg lossis kev ua tsis tiav. Qhov kev tawv no ua kom koj cov ntawv sib txuas ruaj khov ntev dua, txawm tias nyob rau hauv qhov chaw nyuaj. Koj pom cov qhov sib txawv no hauv qhov zoo ntawm cov nplaum khaws nws cov khoom tom qab siv ntev. Qhov kev tawv siab ntawm HTBN tso cai rau koj cov haujlwm kom tiv taus kev qaug zog, ua rau lawv ruaj khov dua thiab txhim khu kev qha dhau sijhawm.
Cov pov thawj ntawm kev ua neej ntev dua nrog HTBN
Kev sim ua tiag tiag lees paub tias kev siv cov nplaum tshiab uas muaj zog heev ua rau cov pob qij txha siv tau ntev dua. Piv txwv li, cov chaw soj nstuam tau qhia tias cov nplaum uas muaj HTBN tiv taus qhov tsis ua haujlwm zoo dua li cov nplaum ib txwm muaj. Hauv kev sim kev ntxhov siab cyclic, cov pob qij txha uas muaj HTBN tswj tau lawv lub zog tom qab ntau txhiab lub voj voog, thaum cov nplaum ib txwm muaj qhia tias qaug zog thaum ntxov. Kev tshawb fawb hauv thaj chaw kuj txhawb nqa cov kev tshawb pom no. Cov qauv uas siv cov nplaum HTBN ua ke muaj kev kho tsawg dua thiab kev saib xyuas tsawg dua. Cov pov thawj no ua pov thawj tias kev nqis peev rau cov nplaum uas muaj zog heev them rov qab los ntawm kev txo cov nqi mus sij hawm ntev thiab ua kom lub neej ntev ntawm qhov project. Thaum koj xaiv HTBN, koj xaiv cov nplaum uas tawm tsam kev qaug zog thiab kev puas tsuaj, pab koj cov haujlwm kav ntev dua.
Piv txwv ntawm cov ntawv thov ua tiav
Tam sim no muaj ntau lub lag luam vam khom cov nplaum tshiab uas muaj zog heev los txhim kho lawv cov khoom. Hauv kev lag luam tsheb, cov chaw tsim khoom siv cov nplaum HTBN los txuas cov khoom uas tiv taus kev co thiab kub hloov pauv tas li. Qhov kev xaiv no ua rau muaj kev nyab xeeb thiab txo qhov xav tau kho. Hauv kev tsim kho, cov nplaum HTBN ua rau cov pob qij txha uas raug huab cua thiab kev ntxhov siab muaj zog, ua kom cov tsev nyob ruaj khov rau ntau xyoo. Kev lag luam hluav taws xob kuj tau txais txiaj ntsig; HTBN txhim kho qhov ruaj khov ntawm cov khoom siv hluav taws xob uas ntsib kev hloov pauv thermal rov ua dua. Cov ntawv thov ua tiav no qhia tau tias cov nplaum siab tawv hloov kho li cas rau cov teeb meem hauv ntiaj teb tiag. Los ntawm kev xaiv HTBN, koj tau txais txiaj ntsig los ntawm cov kev daws teeb meem uas tau ua pov thawj uas txhim kho koj qhov project qhov ruaj khov thiab kev ua tau zoo.
Koj xav kom koj cov haujlwm kav ntev thiab ua haujlwm tau zoo. Cov nplaum tshiab uas muaj zog heev, zoo li HTBN, pab koj ua tiav lub hom phiaj no. Lub rooj hauv qab no qhia txog HTBN sawv tawm li cas rau kev txhim kho kom ruaj khov ntawm cov neeg sawv cev niaj hnub no. Xaiv cov nplaum no rau kev kho tsawg dua, kev ntseeg siab ntau dua, thiab kev thaj yeeb nyab xeeb.
| Tus Neeg Sawv Cev Sib Txuas Lus | Cov Khoom Tseem Ceeb |
|---|---|
| HTPB | Tsis tshua muaj viscosity, siab laus tsis kam |
| EHTPB | Kev ua haujlwm kub qis dua zoo dua |
| ATBN | Kev tsis kam rau hydrolysis |
| HTBN | Kev ua kom muaj zog dua |
| CTBN | Ua kom muaj kev cuam tshuam thiab kev tawg tsis kam, txhim kho kev lo rau cov khoom nyuaj |
Cov Lus Nug Feem Ntau
Dab tsi ua rau cov nplaum HTBN txawv ntawm cov nplaum ib txwm?
Koj tau txais kev tawv thiab kev ywj pheej ntau dua nrog HTBN. Qhov no txhais tau tias koj cov ntawv cog lus kav ntev dua thiab tiv taus kev puas tsuaj los ntawm kev ntxhov siab thiab kev hloov pauv kub.
Koj puas siv tau cov nplaum HTBN hauv cov haujlwm sab nraum zoov?
Yog. Koj siv tau cov nplaum HTBN sab nraum zoov. Lawv tiv taus roj, cua sov, thiab huab cua, yog li koj cov haujlwm nyob ruaj khov hauv qhov chaw nyuaj.
Koj khaws cov nplaum HTBN li cas kom tau txiaj ntsig zoo tshaj plaws?
- Khaws HTBN rau qhov chaw txias, qhuav, thiab muaj cua nkag tau zoo.
- Khaws qhov kub ntawm -20 ° C thiab 38 ° C.
- Tiv thaiv kom tsis txhob muaj tshav ntuj thiab dej noo.