How wokuparadza epoxy nebwe? Kushanda epoxy nebwe

Shoko "epoxy" anozivikanwa kuti anenge munhu wose. Asi epoxy nebwe, izvo kushanda iwayo akakurumbira mazuva ano, rudzi chakaita zvokugadzirwa nebwe. Chaioneka muNzvimbo 50s. nokukurumidza kare remakore uye vakawana mukurumbira nekuvongwa ayo ichiita mabasa akawanda ehupfumi.

Nhasi, epoxy Inogadzirwa nemasiridzi anobuda mumiti anoshandiswa mune maindasitiri kugadzirwa uye neimba. Possible mafomu vari kuramba kuwedzera nokuda pokumuka Formulations pamwe akavandudzika unhu.

Description Epoxy

Maererano makemikari anoumba epoxy nebwe - munhu chakaita zvokugadzirwa akakura oligomeric. zvinhu izvi zviri kudiwa mune zvinenge zvose mabhora ose indasitiri. The vakasununguka chimiro epoxy rinoshandiswa asi pachiimbwa ine Kurapwa mumiririri chinogona kuratidza nemamwe ehupfumi pashure polymerization kuita. Kana epoxy nebwe okurapa nevasori kuti anobatana, rinogona kuitika:

• zvakaoma, zvinhu yakasimba;
• Soft uye hunogara zvigadzirwa;
• rabha-kufanana zvinhu.

Epoxy Inogadzirwa nemasiridzi anobuda mumiti husingakwanisi anotevera zvinhu:

• halogens;
• asidhi;
• alkalis.

Zvisinei, pokutaura kunoitika muna esters uye acetone pasina firimu inotungamirwa. Mushure achirapa epoxy nebwe nziyo hakuiti emit volatiles ayo uye shrinkage riri kunyora nezvavo.

Kunyanya epoxy nebwe maberekero

Kana uri kushamisika sei wokuparadza epoxy, unofanira kuziva kuti kushaya kana nekumwisa akamurapa mutumwa ari nziyo kunogona kukanganisa kunaka polymer, apo kuramba husingakwanisi kupisa, asi simba raro ipfupi, kugona kupikisa makemikari uye mvura vanoponeswa . Kana hardener iri yebhasera kukwana mari, nyaya ingava namuka nokuda vasina kusungwa nebwe.

Asati sanganisa kuti epoxy nebwe, zvakakosha kunzwisisa kuti zvakawandisa akasununguka hardener ukasunungurwa panguva polymer pamusoro panguva oparesheni. For siyana yeimwe isingarapiki zvinoriumba uye nebwe zvinoshandiswa zvikuru siyana, izvi zvinogona kuwanikwa redzidziso. Kana totaura yeimwe ano, nhamba ndiyo anowanzodanwa sezvinotevera: 1 2 kana 1: 1.

Zvinotarisirwa kuti maberekero kuti epoxy nebwe

To musi, zvinofungidzirwa kuti kana uchishandisa hardener inzwi kupfuura ndozvakajairwa maitiro polymerization kunoitika nokukurumidza. Pfungwa iyi inogona kunzi anotsausa. Nzira nyore rikurumidze kufamba ndiko kuwedzera tembiricha nemapinduriro nezvakasanganiswa.

Kana uchida kuti basa rikurumidze katatu, tembiricha vanofanira ngazviwedzerwe 10 ° C. Kana iwe simudza mubvunzo sei wokuparadza epoxy, unofanira kuziva kuti nhasi vanozivikanwa dzakagadzirirwa yeimwe, izvo nziyo ane okurapa accelerators. Inogona kuwanika pamusoro sale, uye epoxy yeimwe zvigare panguva tembiricha yakaderera. Nyorai kurapa mumiriri uye tembiricha iri musanganiswa chiito sezvo mukuru zvinoita kuti chokuita mwero polymerization.

Mhete epoxy nebwe: nziyo nedzimwe polymerization tembiricha

The epoxy nebwe anogona kurapwa pane imwe tembiricha kubvira -10 kusvika +200 ° C, zvichaita kuvimba siyana inoshandiswa sezvamunoita. To musi, anozivikanwa Inogadzirwa nemasiridzi anobuda mumiti kuti inopisa uye kutonhora okurapa. Cold mhando hardener uye epoxy nebwe inonyanyoshandiswa kushandiswa muupenyu hwezuva nezuva. Kusangana vakadaro sezvamunoita kunogona kuva ezvinhu enyika gadzira uye simba shoma, uye apo kupisa kurapwa nezvisingabvumwi.

Kuti vawane yakakwirira simba zvigadzirwa kuti mukwanise kuutsungirira dzakakwirira makaremerwa uye kutonhora, uyewo kugara mishonga, anoshandiswa inopisa Kurapwa mhando chikamu. gobvu pajira riya mamorekuru kuumbwa panguva inopisa polymerization. Uyewo, pane nziyo uye oxides vavo vanokwanisa polymerize mumvura mugungwa uye nyorovera ezvinhu.

zvoupenyu chikumbiro

Epoxy zvinhu vakagovera nhasi pasi rose, vanozivikanwa kubva pakati rokupedzisira remakore. Hunhu kushandisa izvi zvinhu mumakore mashoma apfuura kwave kuchiita kuchinja, asi kushandisa iri chinyakare munzvimbo dzakawanda, pakati pavo:

• akaiswa mushonga wokuuraya girazi nokusanzwira magirazi faibha;
• bemhapemha nokuti mvura;
• kusikwa kwemakemikari nemishonga coatings;
• Kugadzirwa njenjemera chikukutu mashoko Washington City Offices zvigadzirwa.

Epoxy nebwe, kushandiswa iri zvakajairika mazuva ano, anogona kuita somunhu impregnating mumiririri kuti chokuedza zvinoumba ari magetsi, motokari, minda avhiyesheni, zvemagetsi uye indasitiri. Panyaya iyi, murwiyo zvaishandiswa pakugadzira Washington City Offices mune zvokuimba engineering shipbuilding, kuvakwa, kugadzira workshop mamiriro motokari muviri zvinhu uye chikepe hulls.

Kushanda epoxy nebwe rinoitwa kunodiwa kudiwa chisimbiso masvingo uye pedzimba mudzimba uye madziva. Use anogona kuitwa epoxy nebwe zvinhu uye pendi kuti panze uye mukati kushongedzwa zvivako, uyewo impregnation, iyo ichapa mvura porous zvinhu uye avo dzikawanda simba, vanofanira dzinounzwa pakati pehuni uye kongiri.

nokuti zvinyorwa

The epoxy nebwe anogona kuumba hwaro läpinäkyvä zvinhu zvikukutu, izvo anoitwa muchivigiro imwe Foroma. Muchikamu chinotevera pavaipfuura chigadzirwa kupatsanurwa nomuviri nzira, dzakadai: kukuya uye okurwadzisa. Rakashandiswa Washington City Offices zvigadzirwa pamasikiro mabasa, ivo zvemagetsi indasitiri, kuvakwa uye neimba.

Kushanda epoxy: pemvura gadziriro

Kushanda epoxy kunosanganisira kudiwa pamusoro gadziriro asati kushanda murwiyo. Chete ipapo achakwanisa kuita dzakakwirira adhesion. Saka, asati wokuparadza epoxy nebwe, tanga kugadzirira pemvura. Kutanga zvaiva degreasing. Pamusoro pemvura inofanira kuva zvisaririra yemafuta uye girisi. The pemvura iri kucheneswa muchishandisa munhu solvent kana sipo kunobudirira. Zvakakosha kuziva asipo Gloss.

The chapamusoro akabviswa ne kukuya. hukawanika Small dzinofanira kugadzirirwa noruoko, shandisa sandpaper kuti ichi. Nokuisa pamusoro mujinga nzvimbo nemibato vachikuya muchina, uye kunoguma guruva anofanira kubviswa pamwe vacuum. Kana mukugadzira Washington City Offices kana layering epoxy kuzviremekedza munoenzanisa uriri, varnishes uye ruchipa mumwe unozotevera unhani rinofanira kushandiswa zvizere Rakasimbisa, achiri namuka yapfuura rukoko.

Kana ano uye zvinodiwa kuti rakapedzwa chigadzirwa mvumo, rezasi layer iyo anoita somunhu substrate, anofanira kuva chikamu chiduku duku kusaswa jecha. Pashure arapa jecha zvakawandisa vanofanira kubvisa uye kushandisa mutsva paiva epoxy.

Gadzira yakawanda epoxy nebwe

Kana iwe hauzivi dzakananga ehupfumi ari epoxy nebwe, ipapo ungasangana nematambudziko ari kugadzirwa nezvinhu zvakawanda. With kuwedzera vhoriyamu epoxy, yakawanda kupisa. Achibika nebwe furo achava mikukutu chena. sezvamunoita izvi hazvigoni kunzi akakodzera kushandiswa. diluents uye zvokufembedzwa anogona kuwedzerwa kuderedza viscosity kusvika nebwe. Kunyange kuwanda duku kunogona kukonzera kuderera simba uye nokupisa kuramba ari chigadzirwa. Mugumisiro anova exudation zviri diluent kubva polymer, iyo inotungamirira kudzikisirana mashoko.

Epoxy Inogadzirwa nemasiridzi anobuda mumiti uye Kurapwa yomuchipatara dzisina mvura. Kana izvi zvaitika, ipapo murwiyo anova turbid uye anorasikirwa zvivako zvayo. Today akasunungura utachiona epoxy. nziyo dzakadaro dziri akaberekwa pamwe kwakadonhera mvura kuita kupararira. Epoxy nebwe chinofanira kusanganiswa plasticizer. The zvichiguma muvhenganiswa rakatora kudziyirwa ichokwadi kana uchishandisa DBP. In kushandisa deg-1 sezvamunoita zvinofanira kusanganiswa.

For kwazvo vaiitawo rinofanira kushandiswa vanochera chinokosha kamwene kuvaka kana chisanganiso. The kukura nebwe plasticizer vanosarudzwa zvichienderana inodiwa ductility, asi kazhinji nhamba plasticizer anoda kubva 5 kusvika 10%. Musanganiswa rakawedzerwa hardener. The nebwe riri dzaserera kuti +30 ° C, kudzivirira Kubika. Standard kuenderana of nebwe pamwe hardener hunoratidzika 1 kusvika 10. Kuti vawane dzakafanana nemukuparadzwa hardener vanofanira nechokwadi nokusanganisa. Zvikasadaro, murwiyo achaita heterogeneous, uye gare gare kuti ziya.

Resin Crafts

Kazhinji vatenzi anoshanda nyaya kubva epoxy Inogadzirwa nemasiridzi anobuda mumiti. mabasa aya pamwe nedzimwe matambudziko. The chigadzirwa vanofanira läpinäkyvä mairi inofanira kuva mhepo matema. The mukobvu uye achirapa pamusoro inofanira rekuchikoro. Kana pakukora iri pamusoro 2 neMM, mashoko rinoshandisirwa pashure chikuru akaturikidzana ari polymerization. The nebwe anogona kudirwa siyana. Kuna chigadzirwa aparadzana, chimiro akazorwa peturu mondo kana girisi.

Dhayi nokuti epoxy nebwe aizoita kuti chigadzirwa ruvara. Pashure pokupedza chigadzirwa anodzokororwa panguva adziye kupfuura nzvimbo tembiricha. Pashure 3 chasa anouya chikuru polymerization Kurapwa pamberi yokuzviparadzanisa, mushure chigadzirwa inofanira kudziyirwa kuti mhanyisa okurapa muitiro kwemaawa 6. Kana ukasarudza kuita rwokugadzira kugadzirwa epoxy nebwe, zvino, zvingasava kukwanisa kushandisa cabinet hovhoni chaiyo.

At kamuri tembiricha iri polymerization kuchapedza 2 weeks. Kana zvokubikisa akawedzera triethylenetetramine, pose anogona kuramba Sticky. Dzinga chigadzirwa mune ramangwana anofanira machine psac. Epoxy nebwe epamba kugadzirwa hakusi akakodzera kuraswa hombe zvigadzirwa, nokuti yakasiyana Kurapwa gogonera ukobvu.

Kuita ruvara epoxy nebwe

Dhayi nokuti epoxy nebwe ichapa musha sezvamunoita, dzakapendwa mune imwe ruvara. Kuti vave nechokwadi yunifomu kuparadzira ruvara vagadziri vanoshandisa vemakumi surfactants. Pigmentation anogona kuderedza pachena pamusoro nebwe, dzimwe nguva anochinja ruvara, namo nerima. Chakawedzera ruvara kuti tiwedzere yaifanira asi pashure kuwedzera wakisi.

Technical zvechadenga epoxy nebwe Zvinoumba Muenzaniso chiratidzo ED-20

Epoxy nebwe, hunhu izvo zvichashandiswa akanyorwa pazasi, rinomiririra uchi-kufanana yellowish mvura iyo nyore mavara. Density pa 20 ° C ambient chinhu muganhu 1,16-1,25 makirogiramu / m ^3. simba Tensile ndiyo 40-90 MPa. Flexural simba yakaenzana 80-140 MPa. simba Compressive ndiyo 100-200 MPa.

The polymerization tembiricha iri 20 ° C uye pamusoro. Kana uri kuziva epoxy nebwe, kukura musanganiswa kana pamwe chete hardener vanofanira kufarira. The yokupedzisira inofanira kushandiswa uwandu zvikamu 7, nepo nebwe riri yebhasera ane chitsama 1 chikamu. The polymerization nguva maawa 1.5 sezvamunoita. Absorção de Água pashure pemaawa 24 akaenzana panogumira 0.01-0.1%. Heat nemishonga yemakomo kubva 55 kusvika 170 ° C. Impact simba riri 5-25 KJ / m ^2.

ehupfumi kiyi epoxy nebwe

Tisati takurukura mubvunzo kutenga kupi epoxy, unofanira kuziva zvayo zvinokosha ehupfumi. Pakati pezvimwe vanofanira govera yakaderera kuramba cracking walnut, uyewo mamwe nouchapupu toxicity achienzaniswa acrylic Inogadzirwa nemasiridzi anobuda mumiti. The ehupfumi of epoxy nebwe zvinoratidza kuti murwiyo ane mukuru viscosity, kunofanira kushandiswa pachiimbwa zvokufembedzwa. musanganiswa kungava pakutsamwisana kana wedzera solvent kuderedza viscosity yacho nebwe. Muzviitiko zvacho zvose, kuti nebwe uchava mvura mvura. Inogona kushandawo nokuda mumakwenzi kana chinotenderera, rakakurumidza impregnate Washington City Offices uye zvinopfuura porous pamusoro akadai huni.

mhedziso

Kazhinji, vatengi vari kushamisika kuti kutenga kupi epoxy nebwe. Nhasi, mashoko aya anopa zvakasiyana siyana makambani, pakati vamwe, zvinofanira kuitwa rinoumba Supermarket "Carbo" riri muMoscow panguva Volgograd prospectus, 42.