Cov tshuaj siv pob zeb yog siv rau hauv kev tsim tshuab, hauv chaw tsim kho nkoj, hauv tshuaj nroj tsuag. Cov khoom siv no xav tau ua qhov impregnation thaum lub sij hawm tsim ntawm qhov. Lawv pab txhim kho ntoo, carbon fiber lossis fiberglass cov ntaub ntawv. Cov ntsiab lus nrov tshaj plaws yog polyester thiab epoxy resins. Lawv muaj lawv qhov zoo thiab lawv xav tau.
Polyester cob
Cov khoom lag luam ib txwm ua los ntawm polyester, tab sis lwm cov ntsiab lus yuav txawv. Lub txheej tuaj yeem muab ntxiv kom muaj zog yog tias ntxiv cov ntawv thov.
Thaj chaw thov: kev tsim kho kev lag luam, kev lag luam rau kev tsim khoom thauj, tshuab thiab qhov chaw, koom haum chemical, fiberglass, thiab lwm yam.
Qhov zoo ntawm polyester:
- tus nqi pheej yig;
- lub zog zoo heev;
- tsis kam rau cov tshuaj lom neeg;
- cov khoom muaj cov khoom dielectric;
- tsis muaj cov khoom phom sij ua rau yaj;
- tsis ua mob rau tib neeg thiab ib puag ncig;
- tsis muaj qhov kub tshwj xeeb yog qhov yuav tsum muaj rau solidification;
- yooj yim ntawm kev siv.
Cons ntawm polyester cob
Txhua qhov tsis zoo tuaj yeem raug txo kom dhau rau qhov ntsuas ib qho - cov ntsiab lus no yog ib qho-tivthaiv. Thaum kev fab tshuaj yog tshwm sim, cov khoom yuav dhau los nyuaj thiab tsis zoo rau kev siv ntxiv. Yog tias peb tham txog epoxy, ces nws tuaj yeem ua kom nyias nyias thiab thov rau txhua qhov chaw. Txawm li cas los xij, nws tsis muaj hnub tas sij hawm.
Lwm qhov tsis zoo yog qhov ua nplaim siab vim tias muaj cov kuab tshuaj ntxiv nyob rau hauv cov lus muaj. Hauv qhov no, cov yas yuav raug rau cov txheej txheem sib txuas zoo ib yam li cov khoom ntoo. Polyester tseem muaj qib qis ntawm kev nplaum thiab lub siab ntsws txo qis. Ntawm qhov tsis txaus, nws tsim nyog sau cia tus nqi dej siab ua kom haum ntawm kev lim dej. Cov khoom lag luam no tau siv dav, tab sis lawv yuav tsum raug xaiv raws li qhov xav tau.
Resin ntawm Qhov Kev Lag Luam Pauv Tshaj Plaws muaj txiaj ntsig zoo ntawm kev ua lag luam, cov khoom lag luam ntawm cov khoom lag luam uas muaj kev txhim kho zoo.
Cov yam ntxwv ntawm epoxy cob
Nws muaj cov ntsiab ntawm cov hluavtaws ib txwm muaj. Feem ntau cov khoom lag luam siv nyob hauv ob qho khoom siv. Tom qab ua tawv tawv, txheej txheej dhau los ruaj khov heev, muaj peev txheej tiv thaiv kev puas tsuaj. Nws yog tsim nyog sau cia tias txheej tau ntshai ntawm acetone lossis lwm yam kev puas tsuaj, txij li nws tuaj yeem qhuav tom qab raug tsoo.
Cov txiaj ntsig ntawm epoxy:
- tsis muaj teeb meem pa taws;
- me ntsis shrinkage;
- saum npoo tsis ntshai ntawm qhov chaw noo;
- yooj yim ntawm kev sib tsoo;
- lub peev xwm los txuas rau cov khoom tsis ntxeem tau;
- kom qhuav kub thiab txias.
Feem ntawm daim ntawv thov: nyob rau hauv kev tsim cov khoom siv dav hlau rau lub impregnation ntawm fiberglass, rau hull ua, ntawm lub tshuab kev tsim kho tshuab, rau kev tsim hluav taws xob, plastics, hauv lwm qhov chaw ntawm kev lag luam.
Qhov tsis zoo:
- tus nqi khoom siab;
- qee zaum tsis yooj yim polymerization lub sijhawm.
Qhov sib txawv ntawm polyester cob thiab epoxy Cov khoom uas muaj los ntawm cov roj hmab polyester yog qhov zoo dua li cov ntawm epoxy cob. Txawm li cas los xij, txhawm rau kom txheej yuav ruaj khov dua, ntxiv cov khoom seem yuav tsum ntxiv rau lawv.
