Epoxy Resin

1,Hordhac

Xabagta xabagta ayaa inta badan lala isticmaalaa wax lagu daro. Waxyaabaha lagu daro waxaa lagu dooran karaa iyadoo loo eegayo adeegsiyaal kala duwan. Waxyaalaha lagu daro ee caadiga ah waxaa ka mid ah wakiilka Curing, Modifier, Filler, Diluent, iwm.

Wakiilka daawaynta waa wax lagu daro lama huraan ah. Haddi xabagta epoxy loo isticmaalo xabag ahaan, dahaadhid, la shubi karo, wakiilka daawaynta waa in lagu daraa, haddii kale lama daawayn karo. Sababo la xiriira shuruudaha kala duwan ee codsiga iyo waxqabadka, waxaa jira shuruudo kala duwan oo loogu talagalay resin epoxy, wakiilka daweynta, beddelka, buuxinta, dareeraha iyo waxyaabaha kale ee lagu daro.

2,Xulashada xabagta Epoxy

(1) Dooro si waafaqsan Codsiga

① Marka loo isticmaalo sida koollada, waxa fiican in la doorto xabagta leh qiimaha epoxy dhexdhexaad ah (0.25-0.45);

② Marka loo isticmaalo sidii castable, waxa fiican in la doorto xabagta leh qiimaha epoxy sare (0.40);

③ Marka loo isticmaalo daahan ahaan, xabagta leh qiimaha epoxy hooseeya (<0.25) ayaa guud ahaan la doortaa.

(2) Dooro si waafaqsan Awoodda Makaanikada

Awooddu waxay la xiriirtaa heerka isgoysyada. Qiimaha epoxy-ku waa sarreeyaa, iyo heerka isdhaafsiga ayaa sidoo kale sarreeya daaweynta ka dib. Qiimaha epoxy-ku wuu hooseeyaa shahaadada isku xidhidhuna waa hooseeyaa daawaynta ka dib. Qiimaha epoxy kala duwan ayaa sidoo kale keeni doona xoog kala duwan.

① Xabagta leh qiimaha epoxy-ga sare ayaa leh xoog sare laakiin waa jajaban yahay;

② Resinka leh qiimaha epoxy dhexdhexaadka ah wuxuu leeyahay xoog wanaagsan heerkulka sare iyo hooseeya;

③ Xabagta leh qiimaha epoxy hooseeya ayaa leh awood liidata heerkulka sare.

(3) Dooro si waafaqsan Shuruudaha Hawlgalka

① Kuwa aan u baahnayn iska caabin heerkul sare ah iyo xoog, waxay dooran karaan resinka leh qiimaha epoxy hoose kaas oo si dhakhso ah u engejin kara mana fududa in la lumiyo.

② Kuwa u baahan daalacashada wanaagsan iyo xoogga, waxay dooran karaan resinka leh qiime sare oo epoxy ah.

3,Doorashada Wakiilka Daawaynta

(1) Nooca Wakiilka Daawaynta:

Waxyaalaha caadiga ah ee daawaynta ee resin epoxy waxaa ka mid ah amine aliphatic, alicyclic amine, amine aromatic, polyamide, anhydride, resin iyo amine jaamacadeed. Intaa waxaa dheer, marka la eego saameynta sawir-qaade, UV ama iftiinka ayaa sidoo kale sameyn kara daaweynta resin epoxy. Amine daawaynta waxaa guud ahaan loo isticmaalaa heerkulka qolka ama daaweynta heerkulka hoose, halka anhydride iyo wakiilka daawaynta udgoon ayaa caadi ahaan loo isticmaalo kululaynta daaweynta.

(2) Qiyaasta Wakiilka Daawaynta

① Marka amine loo isticmaalo sida wakiilka iskutallaabta, waxaa loo xisaabiyaa sida soo socota:

Qiyaasta Amine = MG/HN

M = miisaanka kelli ee aminka;

HN = tirada hydrogen firfircoon;

G = qiimaha epoxy (epoxy u dhiganta 100 g ee xabagta epoxy)

Qiyaasta isbeddelku kama badna 10-20%. Haddii lagu daaweeyo amiinada xad dhaafka ah, xabagta ayaa noqon doonta mid jajaban. Haddii qiyaasta ay aad u yar tahay, daawadu ma fiicna.

② Marka anhydride loo isticmaalo sida wakiilka iskutallaabta, waxaa loo xisaabiyaa sida soo socota:

Qiyaasta anhydride = MG (0.6 ~ 1) / 100

M = miisaanka molecular ee anhydride;

G = qiimaha epoxy (0.6 ~ 1) waa iskudhafka tijaabada ah.

(3) Mabda'a Doorashada Wakiilka Daawaynta

① Shuruudaha Waxqabadka.

Qaar waxay u baahan yihiin iska caabin heerkul sare ah, qaar waxay u baahan yihiin dabacsanaan, qaarna waxay u baahan yihiin iska caabin daxaleed wanaagsan. Wakiilka daaweynta ku habboon ayaa lagu doortaa iyadoo loo eegayo shuruudo kala duwan.

② Habka Daawaynta.

Alaabooyinka qaarkood lama kululayn karo, ka dibna wakiilka daweynta kulaylka lama dooran karo.

③ Muddada Codsiga

Waxa loogu yeero xilliga arjiga waxaa loola jeedaa xilliga laga bilaabo wakhtiga xabka epoxy-ga lagu daray wakiilka daawaynta ilaa wakhtiga aan la isticmaali karin. Codsiga dheer, anhydrides ama wakiilada daawaynta qarsoon ayaa guud ahaan loo isticmaalaa.

④ Badbaadada

Guud ahaan, wakiilka daawaynta leh ee sunta yar ayaa ka fiican oo badbaado u leh wax soo saarka.

⑤ Qiimaha

4,Xulashada wax ka beddelka

Saamaynta beddelaha waa in la hagaajiyo harag-samaynta, caabbinta xiirid, caabbinta foorarsiga, caabbinta saamaynta iyo waxqabadka dahaarka resin epoxy.

(1) Wax ka beddelka iyo Astaamaha Guud

① caag polysulfide: hagaajinta xoogga saamaynta iyo caabbinta diirka;

② Polyamide resin: hagaajinta jajabnaanta iyo adhesion;

③ Khamriga Polyvinyl TERT butyraldehyde: waxay wanaajisaa iska caabbinta hargaha;

④ NBR: hagaajinta iska caabbinta hargaha;

⑤ phenolic resin: hagaajinta iska caabbinta heerkulka iyo iska caabinta daxalka;

⑥ Xabagta Polyester-ka: hagaajinta iska caabbinta hargaha;

⑦ Urea formaldehyde melamine resin: kordhiso caabbinta kiimikada iyo xoogga;

⑧ Resin Furfur: hagaajinta waxqabadka foorarsiga joogtada ah, hagaajinta caabbinta aashitada;

⑨ Xabagta Vinyl: waxay wanaajisaa caabbinta diirka iyo saamaynta saamaynta;

⑩ Isocyanate: waxay yaraysaa qulqulka qoyaanka waxayna kordhisaa caabbinta biyaha;

11 Silikoon: wanaaji caabbinta kulaylka.

(2) Qiyaasta

① caag Polysulfide: 50-300% (oo leh wakiilka daaweynta);

② Xabagta Polyamide iyo xabagta phenolic: 50-100%;

③ Xabagta Polyester-ka: 20-30% (iyada oo aan lahayn wax daawo ah, ama qadar yar oo ah wakiilka daaweynta si loo dedejiyo falcelinta.

Guud ahaan, wax ka beddelka badan ayaa la isticmaalaa, dabacsanaantu way sii weyn tahay, laakiin heerkulka qallafsanaanta kulaylka ee alaabta resin ayaa si habboon hoos ugu dhacda. Si loo hagaajiyo dabacsanaanta resin-ka, wakiilada adag sida dibutyl phthalate ama dioctyl phthalate ayaa inta badan la isticmaalaa.

5,Xulashada Filler

Shaqada buuxinta waa in la hagaajiyo qaar ka mid ah sifooyinka alaabta iyo xaaladaha kulaylka ee daaweynta resin. Waxa kale oo ay yarayn kartaa xadiga resin epoxy-ga oo ay yarayn kartaa kharashka. Buuxiyeyaasha kala duwan ayaa loo isticmaali karaa ujeedooyin kala duwan. Waa in ay ka yaraataa 100 mesh, qiyaastuna waxay kuxirantahay codsigeeda. Buuxiyeyaasha caadiga ah waa sida soo socota:

(1) Fiber asbestos iyo fiber galaas: kordhinta adkeysiga iyo iska caabinta saameynta;

(2) budada Quartz, budada foornada, budada birta, sibidhka, emery: kordhinta adkaanta;

(3) Alumina iyo budada dhoobada: kordhinta xoogga dhejiska iyo xoogga farsamada;

(4) Budada asbestos, budada jel silica iyo sibidhka heerkulka sare: hagaajinta caabbinta kulaylka;

(5) Budada asbestos, budada quartz iyo budada dhagaxa: yaree heerka dhimista;

(6) budada aluminium, budada naxaasta, budada birta iyo budada kale ee birta ah: kordhinta kulaylka iyo dhaqdhaqaaqa;

(7).

(8) Emery iyo abrasives kale: hagaajin waxqabadka ka-hortagga xidhashada;

(9) Budada Mica, budada porcelain iyo budada quartz: kordhinta waxqabadka xakamaynta;

(10) Dhammaan noocyada midabada iyo graphite: midab leh;

Intaa waxaa dheer, marka loo eego xogta, qaddarka ku habboon (27-35%) ee P, As, Sb, Bi, Ge, Sn iyo Pb oxides ee lagu daray resin waxay ilaalin karaan adhesion hoos kuleyl sare iyo cadaadis.

6,Xulashada dareeraha

Shaqada diluent waa in la yareeyo viscosity iyo hagaajinta permeability of resin. Waxa loo qaybin karaa laba qaybood oo aan shaqaynayn iyo mid firfircoon, caddadka guud ahaana kama badna 30%. Dheecaannada caadiga ah waxaa ka mid ah diglycidyl ether, polyglycidyl ether, propylene oxide butyl ether, propylene oxide phenyl ether, dicyclopropane ethyl ether, triethoxypropane propyl ether, diluent inert, xylene, toluene, acetone, iwm.

7,Shuruudaha Agabka

Ka hor inta aan lagu darin wax-ka-qabashada, dhammaan agabka loo isticmaalo, sida xabagta, wakiilka daawaynta, buuxinta, wax-bedelka, dareeraha, iwm., waa in la eego, kuwaas oo buuxin doona shuruudaha soo socda:

(1) Biyo la'aan: agabka ay ku jiraan biyaha waa in marka hore la qalajiyo, iyo dareerayaasha ay ku jiraan xaddi yar oo biyo ah waa in la isticmaalaa sida ugu yar ee suurtogalka ah.

(2) daahirnimo: waxa ku jira wasakhda aan biyaha ahayn waa in ay ka yaraataa 1%. Inkasta oo sidoo kale lagu isticmaali karo 5% -25% wasakh, boqolkiiba walxaha kale ee caanaha waa in la kordhiyaa. Way fiicantahay in la isticmaalo darajada reagent qadar yar.

(3) Muddada ansaxnimada: Waa lagama maarmaan in la ogaado in alaabtu ay khaldan tahay iyo in kale.