I. Rababa siwo wotsɔ futukpɔ wɔe ƒe wɔwɔfia

Wowɔa foam rababa nuwɔna to dzɔdzɔme alo atike foaming mɔnu kple rababa abe gɔmeɖoanyi nu be woakpɔ sponge-like rubber porous structure products. Wozã mɔ̃ɖaŋununya sia geɖe le ʋuwɔƒe vovovowo, abe ʋu ƒe ʋɔtru kple fesre nutrenuwo, xɔtunu siwo wotsɔna tsia xɔtunuwoe, xɔtutu ƒe gasketwo, anyigbaʋuʋu ƒe nuzazãwo, kamedefefewo takpɔƒewo, kple bubuawo ene.

1、Nukpɔsusu si nye foamed rababa

Wogayɔa nusi woyɔna be rababa si me futukpɔ le hã le afisiafi be rababa ƒe futukpɔ mɔ̃ɖaŋununya, enye futukpɔnu tɔxɛ aɖe zazã atsɔ awɔ dɔ na rababa, ale be rababa ƒe dɔwɔwɔ ɖe dzesi abe mɔ̃ si wotsɔ wɔa dɔe ene. Mɔ̃ɖaŋununya sia wozãna wu le fifi nuwɔwɔ ƒe akpa dzi, enye mɔnu si bɔ wu le nuwɔwɔ ƒe dɔwɔwɔ me le afɔɖeɖe sia me.

2、Classification of foamed rababa nuwɔna

Fifia la, rababa siwo wotsɔ futukpɔ wɔe nye nusiwo wozãna wu le ewɔwɔ ƒe akpaa me dometɔ ɖeka, si woate ŋu ama ɖe microporous structure kple porous structure ƒomevi eve me le pores nu. Eye woate ŋu ama nu suesuesuewo ƒe wɔwɔme ɖe futukpɔnu vovovowo kple futukpɔnu siwo nɔa anyi ɖaa me. Le raw ƒe nu xoxowo nu la, woate ŋu ama ɖe nu sia me ɖe dzɔdzɔme rababa foaming nuwɔna, isoprene foaming nuwɔna, SBR foaming nuwɔna, ethylene propylene rababa foaming nuwɔna, kple bubuawo.

Evelia, foam rababa nuwɔna kple numekuku

Wozãa rababa si me fu le wu le fifi hadomegbenɔnɔ me, eƒe wɔwɔ kple ewɔwɔ ƒe ɖoɖo kple dzoxɔxɔ ƒe futukpɔ ƒe vovototo le xexeame katã, eƒe vulcanization cross-linking speed kple foaming agent ƒe gbegblẽ ƒe duƒuƒu le esi be wòasɔ kple kuxia. Eyae nye be, rababa nu dzidzedzetɔe foaming tsɔ kpe ɖe cross-linking duƒuƒu ŋu la, ƒomedodo kplikplikpli aɖe le vulcanization dɔwɔwɔ ƒe rababa nuawo kple gbegblẽ si le blowing agent dome dzɔna ne gɔmeɖosea nye ɖeka koŋ, nye kekeɖenudɔ le gas kekeɖenu gli la be woawɔ tsitretsitsi ƒe ɖoɖo si sɔ.

1、Nu vevitɔ ƒe tiatia

Le ewɔwɔ ƒe ɖoɖoa me la, zi geɖe la, ebiaa taɖodzinu tɔxɛ siwo le nusi wowɔ ŋu be woatia dzɔdzɔmeŋutinunya me rababa ŋutilã ƒe nuzazãwo, nu siawo le tiatia fafɛ, ŋusẽ si sɔ, agbɔsɔsɔ nyui ƒe elasticity le dzɔdzɔme rababa nuwɔna me, gake hã be woatia rababa aɖewo siwo wowɔ be woakpɔ adzɔnua ƒe nuhiahiãwo gbɔ. Le ami-tsitretsitsi ƒe aŋɔnuwo wɔwɔ gome la, tsɔ kpe ɖe alesi wòhiã be nàtia dzɔdzɔmeŋutinunya me nitrile rababa si sɔ, gake be nàda neoprene ƒe agbɔsɔsɔme kple ƒomedodo hã kpɔ, eye be nàkpɔ nu tɔxɛ aɖewo ƒe nuhiahiãwo gbɔ gɔ̃ hã la, àte ŋu azã rababa ƒomevi eve alo esi wu nenema kple eƒe nɔnɔme hã.

2、Tiatia si nye foaming agent

Nusi naa futukpɔnae nye kadodo vevitɔ kekeake le rababa si me futukpɔ le wɔwɔ bliboa me, eye eƒe tiatia do ƒome kplikplikpli kple dɔwɔwɔ nyuie kple eƒe nyonyome. Le nyateƒe me la, ele be futukpɔnuawo ƒe dɔwɔwɔ nyuie natia futukpɔnu si sɔ le dzɔdzɔmeŋutinunya me eye wòsɔ, kple futukpɔnu agbɔsɔsɔme, mɔnuwo zazã atsɔ akpɔ hadomeŋgɔyiyi ƒe nudidi siwo li fifia gbɔ. Fifia la, yaƒoƒo si me agbe mele o kple yaƒoƒo si me agbe mele o eve koŋue le yaƒoƒoa me. Inorganic blowing agent mainly refers to sodium bicarbonate, ammonium bicarbonate, urea, etc. Viɖe siwo le blowing agents siawo ŋu be woƒe gbegblẽ kabakaba kple dzoxɔxɔ si bɔbɔ le dɔwɔwɔ me, le nukpɔsusu nu la, eƒe foaming dɔwɔwɔ hã nyo wu. Esi wònye be gas si mɔ̃ɖaŋununya sia wɔna le dɔwɔwɔ me nye carbon dioxide kple ammonia, kple bubuawo koŋ ta la, ya siawo ƒe anyinɔnɔ nana be rababa ƒe wɔwɔme la ƒe gege ɖe eme ƒe xexlẽme gã aɖe le esi, esesẽna be woawɔ foam rubber si me do si wotu, foam rubber ƒe wɔwɔme si ƒe nyonyome mede o, ŋusẽ mele eŋu o, eƒe ʋuʋu, ele bɔbɔe be wòatrɔ, eyata ele bɔbɔe ŋutɔ be woazãe ɖeɖeko le dɔa me, eye zi geɖe la, woate ŋu azãe abe organic ene foaming agent si woazã.

Dɔ si míele wɔwɔm fifia, míezãa foaming agent koŋue nye nitrogen dicarbonamide, nitroso, dibenzosulfonyl hydrazide ether, kple bubuawo.. Nu siawo le eƒe gbegblẽ ƒe dzoxɔxɔ zazã me anɔ abe 200 °C alo esi wu nenema, eye le ewɔwɔ ƒe ɖoɖoa me hã la, ehiã be woatsɔ kpeɖeŋutɔ yaƒoƒonu bubuwo akpe ɖe eŋu, abe urea, magnesium oxide, zinc oxide, kple bubuawo ene.., eyata eƒe gbegblẽ dzi ɖena kpɔtɔna ŋutɔ, dzoxɔxɔ ƒe gbegblẽ le gas si wowɔ me koŋue nye nitrogen, carbon dioxide, ammonia, kple bubuawo, menye ɖeko ya siawo meɖia aɖi o, womeʋẽna lilili o, eye viɖe le wo ŋu gɔ̃ hã be womeƒoa ɖi nutome o, ke menye amadede trɔna o. Rababa-fuwɔnu siwo wotsɔ futukpɔnu wɔe ƒe ʋuʋudedi lolo wu, eye woƒe ʋuʋu ƒe agbɔsɔsɔme hã lolo wu; ne wole foaming agent zãm la, stearic acid, alum, kple bubuawo le kpeɖeŋutɔ foaming agent la me, si ate ŋu aɖe foaming agent ƒe gbegblẽ ƒe dzoxɔxɔ dzi akpɔtɔ ŋutɔ va ɖo 130 ~ 150°C le etsɔtsɔ kpee vɔ megbe.

3, vulcanization ɖoɖo ƒe tiatia

Vulcanization system le vevie ŋutɔ le numekuku ƒe ɖoɖo si wowɔna le foaming products me, gbã la, nenye be vulcanization system kple foaming system ƒe sɔsɔe nye nu vevitɔ si ana woawɔ foaming products ƒe dɔwɔwɔ nyuie. Woate ŋu awɔ rababa dzidzedzetɔe, nu vevitɔe nye rababa ƒe vulcanization dɔwɔwɔ eye ele be foaming agent ƒe gbegblẽ ƒe ɖoɖo nawɔ ɖeka koŋ, alo sulphur ɣeyiɣi wu foaming ɣeyiɣi si do ŋgɔ vie. Eyata ne ètia vulcanization system vɔ la, trɔ asi le foaming system la ŋu be wòasɔ ɖe enu, alo ne ètia foaming system vɔ la, trɔ asi le vulcanization system la ŋu be wòasɔ ɖe enu.

4、Tiatia si nye ŋusẽdodo filler

Carbon black, silica kple ŋusẽdoamenu bubuwo ateŋu ana ŋusẽ kple sesẽme nanyo ɖe edzi le rababa si wotsɔ foam wɔe me, calcium carbonate, anyi kple nu bubu siwo wotsɔ dea eme nyuie ate ŋu ana rababa la ƒe dɔwɔwɔ nanyo ɖe edzi eye wòaɖe gazazãwo dzi akpɔtɔ. Ele be carbon black natia semi-reinforced FEF kple SRF carbon black, filler natia calcium carbonate si me kɔ, anyi, kple bubuawo, mele be agbɔsɔsɔa nasɔ gbɔ akpa o, anyo wu be wòanye kɔpi 20 va ɖo 40.

5、Tiatia si nye plasticizer

Plasticizer ƒe nudidiwoe nye: plasticizing ƒe ŋusẽkpɔɖeamedzi nyui, agbɔsɔsɔme si le sue, absorption rate kabakaba, ɖekawɔwɔ nyuie kple rababa, volatility sue, ʋuʋu aɖeke meli o, aɖi mele eme o, ʋeʋẽ mele eme o, mexɔ asi o eye eƒe kpɔkpɔ le bɔbɔe. Plasticizer ate ŋu ana alesi gbegbe atike si wotsɔ ƒoa ƒui kakae, alesi woate ŋu awɔ dɔe kple alesi wowɔa rababa si wotsɔ tsakae lae nanyo ɖe edzi. Foam rababa nuwɔna siwo hiã foam multiplier gã, plasticizer ƒe agbɔsɔsɔ si wotsɔ kpe ɖe eŋu le goawo katã me lolo wu, eye nàtia esi sɔ nyuie kple rubber plasticizer.

6、Tiatia si nye antioxidant

Foam rababa nuwɔna na porous wɔwɔme, anyigba ƒe lolome lolo wu, tsitsi le bɔbɔe vie, ele be woatsɔe akpe ɖe antioxidants. Gɔmeɖose si le antioxidant tiatia me nye anti-aging ŋusẽ nyui, gake mekpɔa ŋusẽ ɖe foaming agent ƒe gbegblẽ hã dzi o. Ate ŋu atia 4010, 264, MB kple antioxidants bubuwo, agbɔsɔsɔme si wu rababa nuwɔna siwo bɔ.

7, gɔmeɖose si nye rababa ƒe futukpɔ

Sesẽ rababa foaming wɔwɔ ƒe rababa sponge, gɔmeɖoseae nye be woatsɔ foaming agent akpe ɖe rababa tiatia me alo agbugbɔ atsɔ foaming agent, foaming agent ƒe gbegblẽ le vulcanization dzoxɔxɔ me be wòaɖe gas, ƒo xlãe kple rababa be wòawɔ bubble do 'ale be rababa la keke ɖe enu wòazu sponge.

Nu vevi siwo dea dzesi bubble pore ƒe wɔwɔme eye wokpɔa ŋusẽ ɖe edzi enye: gas si ƒoa ya ƒe agbɔsɔsɔme, gas ƒe kaka ƒe agbɔsɔsɔ le rababa la me, rababa ƒe ʋeʋẽ kple vulcanization ƒe duƒuƒu, siwo dometɔ vevitɔe nye gas si le yaƒoƒo ƒe agbɔsɔsɔme si sɔ, gas ƒe dzidziɖedzi ƒe duƒuƒu kple rababa ƒe vulcanization ƒe duƒuƒu.

Be woawɔ rababanu siwo nyo wu la, yaƒoƒo ƒe atike ƒomeviwo kple rababa ƒe vulcanization system tiatiae nye nu vevitɔ. Mɔnu eve koŋ li:

Gbã la, le vulcanization ƒe dzoxɔxɔ nu be woatia dzoxɔxɔ si le gbegblẽm kple nusi sɔ si woatsɔ aƒoe, eye emegbe le alesi ʋuʋudedi ƒe duƒuƒu le vulcanization ƒe dzoxɔxɔ me nu be woatrɔ asi le vulcanization ƒe duƒuƒu ŋu le rababa la me, abe late promoter zazã kple promoter bubuwo kple vulcanization system ene, woate ŋu azãe atsɔ atrɔ asi le promoter ƒe agbɔsɔsɔme ŋu atsɔ atrɔ asi le vulcanization ƒe duƒuƒu ŋu.

Evelia, le vulcanization ɖoɖoa gome la, be woanya vulcanization ƒe duƒuƒu, le foam ƒomeviwo tiatia kple nusuewo ƒe lolome si sɔ nu. Nusi wotsɔ ƒoa yae ƒe akpa suesuesuewo ƒe lolome hã nye nu vevitɔwo dometɔ ɖeka si wotsɔ nyaa alesi nusi wotsɔna ƒoa yae ƒe gbegblẽ kabakabae. Nusueawo ƒe lolome dzi ɖena kpɔtɔna, nusueawo ƒe anyigba ƒe lolome tɔxɛ dzina ɖe edzi, dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu ƒe ŋutete dzina ɖe edzi, eye woƒe gbegblẽ ƒe duƒuƒu dzina ɖe edzi, eyata woate ŋu atrɔ asi le dadasɔ si le nusi wotsɔ ƒoa ya ƒe gbegblẽ ƒe duƒuƒu kple rababa ƒe vulcanization ƒe duƒuƒu dome to tiatia si sɔ na nusi wotsɔ ƒoa yae ƒe nusuewo ƒe lolome si sɔ.

Etɔ̃lia, mɔ̃ɖaŋununya si wotsɔ wɔa dɔe

1、Aŋɔsisi

Nu vevitɔ si le rababa ƒuƒu tsɔtsɔ de plastic me enye be wòagbã rababa ƒe kɔsɔkɔsɔ gã la ahagblẽe. Na rababa ƒe plastic nanyo ɖe edzi, ale be nusi wotsɔ tsakae kple eƒe tsakatsaka ƒe dɔwɔwɔ nanɔ bɔbɔe wu. Le foam rababa ƒe nuwɔna dzadzraɖo me la, zi alesi rababa ƒe plastic nyonae la, zi nenemae wònɔa bɔbɔe be woawɔ nusiwo ƒe do siwo me kuɖɔ le ɖeka, woƒe kpekpeme le sue eye woƒe kpekpeme le sue. Eyata ele be woatsɔ plastic awɔ rababa ƒuƒu la bliboe.

2、Nudzraɖoƒe

Ne wotsaka rababa la vɔ la, ele be woatsɔe ade eme ɣeyiɣi didi si sɔ, zi geɖe la, gaƒoƒo 2 ~ 4, ale be nu vovovo siwo wotsɔ kpe ɖe eŋu la kaka bliboe le rababa ƒe tsakatsaka la me. Zi alesi wokaka rababa siwo wotsɔ kpe ɖe eŋu la sɔsɔe la, zi nenemae nusi wowɔ ƒe lolome li ke nyuie wu, eƒe gowo nɔa blɔ eye kuɖɔawo nɔa ɖeka.

3、Dzoxɔxɔ ƒe dzoxɔxɔ

Rubber foam sea dzoxɔxɔ gɔme ŋutɔ. Rababa ɖeka ma ke ƒe futukpɔ ƒe ŋusẽkpɔɖeamedzi vovovowo le dzoxɔxɔ vovovowo me. Esi wònye be foaming system kple vulcanization system sea dzoxɔxɔ gɔme le mɔ vovovowo nu ta la, vulcanization ƒe dzoxɔxɔ tɔtrɔ agbugbɔ aɖɔ kuxi si nye vulcanization system la sɔsɔ kple foaming system la ɖo.

4、Nuwɔwɔ

Mɔnu siwo wozãna tsɔ wɔa rababa siwo wotsɔ foam wɔe lae nye: extrusion molding, molding, flat molding, etc. Wozãa EPDM foamed products zi geɖe le extrusion molding me, eye wozãa NBR zi geɖe le molding me.