Zvikonzero zvekubuda kwemvura panguva yekusvuta:
Chikonzero nei mabhuru anogadzirwa panguva yekusanganisaepoxy resinGuruu nderekuti gasi rinounzwa panguva yekukurunga rinoburitsa mabubbles. Chimwe chikonzero ndechekuti "cavitation effect" inokonzerwa nekukurunga kwemvura nekukurumidza. Kune mhando mbiri dzemabubbles: anooneka neasingaonekwe. Kushandisa vacuum degassing kunogona kubvisa mabubbles anooneka chete, asi hazvishande mukubvisa mabubbles madiki asingaonekwe nemaziso evanhu.
Zvikonzero zvekuonekwa kwemapundu panguva yekuzvitakura:
Izvi zvinodaro nekuti epoxy resin inoporeswa ne polymerization, inova chemical reaction. Munguva ye curing reaction, mabubble madiki ari mu epoxy resin system anopisa uye anokura, uye gasi harichaenderane ne epoxy system, uye rinozoungana pamwe chete kuti rigadzire mabubble makuru.
Zvikonzero zvekubuda kwe epoxy resin:
(1) Hunhu hwemakemikari husina kugadzikana
(2) Kusanganisa pakugadzira chigoko chekugocha
(3) Kubuda furo mushure mekuunganidzwa kwezvikukutu
(4) Maitiro ekuburitsa tsvina
Njodzi dze epoxy resin furo panguva yekusanganisa:
(1) Furo rinokonzera kuzara kwemvura uye kukora kwemvura, izvo zvinokanganisawo kukwirira kwemvura inoonekwa.
(2) Mabhuru anokonzerwa nemakemikari anoporesa anokanganisa kushanda zvakanaka kwekuvaka.
(3) Kuvapo kwe "mabubbles akanyorova" kuchaita kuti VCM gas phase polymerization, iyo inowanzogadzirwa muketero inonamira.
(4) Kana maburi acho asina kubviswa zvachose panguva yekuvaka, maburi acho anogadzirwa mushure mekuoma, uye pachava nemaburi akawanda pamusoro mushure mekuoma, izvo zvichakanganisa zvakanyanya kunaka kwechigadzirwa.
Nzira yekubvisa sei mabubble emhepo?
Zvigadzirwa zvemushonga wekubvisa mafoam zvinoshandiswa zvakanyanya: silicone defoaming agents, non-silicon defoaming agents, polyether defoaming agents, mineral oil defoaming agents, high-carbon alcohol defoaming agents, nezvimwewo.
Kana tembiricha yadzikira, hunhu hwezvinhu zvakawanda zvine mvura hunochinja, kunyanya kusimba kwezvinhu zvine mvura zvinonamira kuchawedzera sezvo tembiricha ichidzikira.Guruu re epoxy resin, sechinhu chinowanzo shandiswa mumvura, ine kuwedzera kukuru kwekunaka kwe viscosity nekuda kwekuderera kwekupisa. Nokudaro, panguva yekushandisa nekushandisa, mabubbles akaoma kubvisa, mashandiro ekupfava anodzikira, uye kuwedzera kwenguva yekushandisa nenguva yekupisa hazvibatsiri kugadzirwa nekudzora kwakajairika. Zvisinei, kuburikidza nekuunganidzwa kwemakore mazhinji eruzivo rwekugadzira, takapfupikisa ruzivo rwakakosha rwekugadzirisa nekuderedza matambudziko anokonzerwa nematambudziko ari pamusoro apa. Kunyanya, kune nzira ina dzinotevera:
1. Nzira yekudziya nzvimbo yebasa:
Kana tembiricha panzvimbo yebasa yadzikira kusvika pa25°C, kupisa kwakanaka kwenzvimbo yebasa kunodiwa kuti tembiricha ikwire kusvika patembiricha yakakodzera kushandiswa kweglue (25°C ~ 30°C). Panguva imwe chete, hunyoro hwemhepo panzvimbo yebasa hunofanira kuchengetwa pa70%. kana zvakadaro, kusvika tembiricha yeglue pachayo yafanana netembiricha yekunze kwenzvimbo glue risati ragona kushanda uye kushandiswa nemazvo.
Chiyeuchidzo chinodziya: Iyi nzira ndiyo inonyanya kushanda, asi mutengo wekushanda uchakwira, ndapota teererai kuverenga mari.
2. Nzira yekudziyisa mvura inopisa:
Kutonhodza kuchaderedza zvakananga kukosha kwe viscosity yeepoxy resinKuisa glue reab uye kuriwedzera zvakanyanya. Kuripisa pachine nguva usati washandisa glue kuchawedzera tembiricha yaro uye kunoderedza viscosity, zvichiita kuti zvive nyore kushandisa. Nzira chaiyo ndeyekuisa bharero rese kana bhodhoro reglue mumvura inopisa woripisa kwemaawa maviri usati washandisa glue, kuitira kuti tembiricha yeglue isvike pa30℃, wobva wariburitsa, worizunza kaviri, wozochengeta glue reA patembiricha isiri pasi pe30℃ mumvura inodziya worishandisa uchidziya. Paunenge uchishandisa, bvisa glue worizunza hafu yeawa yega yega kuti tembiricha uye kuumbwa kweglue zvirambe zvakafanana. Asi chenjera zvikuru kuti usarega glue riri mubhaketi kana bhodhoro richinamira mumvura, zvikasadaro zvichatungamira kumigumisiro yakaipa kana yakakomba.
Chiyeuchidzo chinodziya: Nzira iyi iri nyore, isingadhuri uye inoshanda, uye mutengo nezvinhu zviri nyore. Zvisinei, kune njodzi dzakavanzika, dzatinofanira kungwarira.
3. Nzira yekudziisa muchoto:
Vashandisi vane mamiriro ezvinhu vanogona kushandisa epoxy resin ab kupisa glue muovheni vasati vashandisa glue kudzivirira kusangana nemvura netsaona. Zviri nyore kwazvo. Nzira chaiyo ndeyekugadzirisa tembiricha yeovheni kusvika pa60°C, wobva waisa bharero rese kana bhodhoro reglue reA muovheni kuti upise, kuitira kuti tembiricha yeglue pachayo isvike pa30°C, wobva wabvisa glue woizunza kaviri, wobva waisa glue patembiricha ye30°C pakati peovheni uchishandisa mipendero yakatogadzirwa kare, asi chenjera kubvisa glue woizunza kweinenge awa imwe chete kuitira kuti glue igare ichichengetedza tembiricha yakaenzana nezvinhu zvirimo.
Chiyeuchidzo chinodziya: Nzira iyi ichawedzerawo mutengo zvishoma, asi iri nyore uye inoshanda.
4. Nzira yekubatsira mukubvisa tsvina:
Kuti ukurumidze kubviswa kwemabubbles zvine mwero, unogona zvakare kutenga mushonga wekubvisa mapoison we epoxy resin ab-added glue, wobva wawedzera glue A ine chiyero che3‰ mukati, nzira chaiyo; usawedzera zvakananga glue inopfuura 3% kune glue A inopiswa nenzira iri pamusoro. Mushonga wekubvisa mapoison weguruu re epoxy resin AB, wobva wasanganisa zvakaenzana wosanganisa neB glue kuti ushandise.
Shanghai Orisen New Material Technology Co., Ltd
M: +86 18683776368 (zvakare paWhatsApp)
Nhamba yefoni:+86 08383990499
Email: grahamjin@jhcomposites.com
Kero: NO.398 New Green Road Xinbang Town Songjiang District, Shanghai
Nguva yekutumira: Ndira-07-2025