PCB kiimikada resin iyo filimka

1, ABS cusbi

Waa isku-darka dhulka ee Acrylonitrile-Butadine-Styrane (Acrylonitrile-Butadine-Styrane), kaas oo qaybta caagga ah ee butadiene ay ku burburin karto chromic acid si ay u samaysato godad, waxaana loo isticmaali karaa barta soo degitaanka naxaas kiimikada ama nikkel si loo sii daayo. Qaybo badan oo ka mid ah guddiga wareegga ayaa lagu soo ururiyaa dahaadhka ABS.

2, a-stage A

Varnish waxaa loola jeedaa maro fiber galaas ah ama warqad suuf ah oo loo isticmaalo in lagu xoojiyo Prepreg inta lagu jiro habka wax soo saarkeeda. Varnish-ka (oo sidoo kale loo tarjumay sida biyaha Varnish) ee xabagta ayaa wali ku jirta halbeeggeeda waxaana lagu qasi karaa dareeraha, oo loo yaqaan A-stage. Marka maro dhalada galaaska ama warqadda suufka ah la nuugo, iyo ka dib hawo kulul iyo qalajinta infrared, culeyska molecular ee farta geedka ayaa u sii kordhaya mid adag ama Oligomer, ka dibna ku lifaaqan walxaha xoojinta si loo sameeyo filimka. Gobolka cusbi waxaa loo yaqaan b-stage. Marka lagu sii jilciyo kulaylka oo lagu sii balaariyo polymer-ka ugu dambeeya, waxaa loo yaqaan C-stage.

3. Xaashida Xaashida (Lakabka) Xaashida Xirmada, ka dibna lakab

Tilmaan guddiga adag ee multilayer -ka adag si loo dhajiyo “filimka” ururka, ama looxa jilicsan “lakabka ilaaliya miiska” lakabka xiga ee u dhexeeya wejiga guddigiisa

B) Marxaladda B) Marxaladda

Waxay tilmaamaysaa nus-polymerization-ka iyo xaalad-adkayntii cusbada kuleylka, sida cusbi ku dhejisan dharka maro dhalada filimka ka dib mashruuca baaba’a ee heer-biyoodka cusbi epoxy, kaas oo lagu jilcin karo kuleyl dheeraad ah.

5, Copolymer

Waa lakab naxaas ah oo lagu cadaadiyey dusha CCL substrate bireed naxaas ah. Xadhiga naxaas ee ay u baahan tahay warshadaha PCB waxaa lagu heli karaa koronto -rogid ama rogid, kii hore ee looxyada wareegga guud ee adag, ama kan dambe ee looxyada dabacsan.

6, Wakiilka Xiriira

Warshadaha guddiga wareegga waxaa loola jeedaa dusha sare ee maro fiber galaas ah oo lagu daboolay lakabka “fasalka xarunta silane”, ka samee inta u dhexeysa cusbi epoxy iyo isku -darka fiber galaas, in ka badan oo ah “gogosha la qabsado” lakabka kiimikada kiimikada u dhaxaysa waxay leeyihiin awood telescopic ka xoog badan iyo oo ay weheliso adkaysiga, mar haddii saxanka uu keeno kulayl xoog leh iyo ballaarinta farqiga u yahay mid aad u weyn, wakiilka isku xiraa wuxuu awoodi doonaa inuu ka fogaado kala tagga labada.

Isku -xidhka, Isku -xidhka, isku -xidhka, isku -xidhka

Polymer ThermosetTIng waxaa sameeya isku -xidhka monomers badan iyada oo loo marayo curaarta molikalikada. Habka isku xidhka waxa la yidhaahdaa “isku -xidhka”.

8, Marxaladda C

Boodhka guud ee substrate -ka, cusbi wuxuu u qaybsami karaa A, B, C iyo sedex qallafsanaan (oo sidoo kale loo yaqaan polymerization ama curing) stage. Qaado tusaalaha ugu badan ee la isticmaalay. Varnish-kiisa waxaa loogu yeeraa marxalad; Prepreq-keeda waxaa lagu magacaabaa B-stage; Dhowr filimaan oo la dabiilay iyo xaashiyo naxaas ah ayaa la mariyay oo mar labaad lagu cadaadiyey heerkulka sare si loo sameeyo substrate-ka. Xaaladan cusbi ee si buuxda u adkaatay waxaa loo yaqaan C-stage.

9, D-galaas D galaas

Waxay tilmaamaysaa substrate ka samaysan fiber galaas oo leh boron aad u sarreeya, si joogteeda dhexe loo xakameeyo hoose.

10. Dicyandiamide (Dicy)

Miyuu yahay nooc ka mid ah adkeynta polymerization polymerization adkaynta loo baahan yahay wakiilka buundada, sababta oo ah qaacidadeeda kelliyeedka leh amine asaasiga ah (-NH2), amine secondary (= NH), iyo amine tertiary (≡NH) saddex saldhig falcelin firfircoon oo xoog leh, waa dhifle aad u fiican , sidoo kale loo yaqaan Cyano-guanidine cyanide Guanidine. Laakiin sababta oo ah nuugista biyaha xoogga leh ee maaddada, waxaa saxanka ku jira dhibaato ah in la soo ururiyo “dib -u -kicinta”, sidaa darteed waa inay noqotaa mid aad u fiican in lagu qaso cusbi ay ku jirto baabba ‘.

11

Si fudud marka loo dhigo, marka walax la kululeeyo, heerka “kulaylka” ku qulqulaya walaxda (MCAL/SEC) ayaa ku kala duwan heerkul kala duwan. DSC waa in lagu cabbiro “heerka socodka kuleylka” (ama heerka isbeddelka kuleylka) heerkul kala duwan. Tusaale ahaan markii cusbi epoxy ganacsi ah la kululeeyo, heerka socodka kulaylka ee heerkul kala duwan oo kala duwan, laakiin wuxuu ku dhow yahay inuu gaaro “heerkulka kala -guurka galaaska, heerka socodka kulaylka ee u dhexeeya ℃ kasta wuxuu u muuqan karaa isbeddel aad u weyn, qalooca leexashada dhibic u dhiganta heerkulka isgoyska dhaadheer ee isgoysyada, oo ah Tg ee cusbi, sidaa darteed Tg DSC si loo go’aamiyo in la heli karo. Habka DSC waa muunad (S) iyo tixraac (R) isku mar kululaynta, sababta oo ah labada “awoodda kulayl” way kala duwan tahay, markaa heerkulku wuu ka duwan yahay, laakiin farqiga u dhexeeya △ T waa la hayn karaa iyada oo aan la beddelin. Si kastaba ha ahaatee, markay u dhowdahay Tg, △ T dhexdooda aad bay isu beddeli doontaa, DSC waxay cabbiri kartaa isbeddelka farqiga heerkulka. Waa wax la beddelay “falanqaynta kala duwanaanshaha kuleylka” (DTA). Ka sokow QAADINTA polymer Tg, DSC sidoo kale waxaa loo isticmaali karaa in lagu cabbiro kuleylka gaarka ah ee balaastikada, crystallinity, hardlin crosslink, iyo daahirsanaanta, waa aalad muhiim ah “falanqaynta kuleylka”.

12. Dhex -dhexaadinta

Waa hab fudud oo aan qaali ahayn oo lagu daboolo (dhumucda filimka maqaarku waxay la xiriirtaa isku -dheelitirka iyo xawaaraha jaakadda). Prepreg (alaabta guddiga wareegga daabacan) ayaa had iyo jeer loo isticmaalaa sidan. Waxaa lagu dabooli karaa dibedda, sidoo kale wuxuu dhex galaa meel bannaan oo maro fiber galaas ah (sidaa darteed waxaa sidoo kale loo yaqaannaa wax qooyay).

E-galaas galaas darajo elektaroonik ah

E-galaas waxaa markii hore iska lahaa OWens-Corning Fiberglass Co. Natiijada warshadaha guddiga wareegga ayaa la isticmaalay muddo dheer, waxay noqotay magac tacliimeed. Ka sokow silicon -ka aasaasiga ah iyo kaalshiyamka, waxaa ku jira potassium aad u yar iyo sodium, laakiin aad u badan boron iyo aluminium. Xakameyntiisa iyo socodsiintiisa ayaa wanaagsan, ayaa si weyn loogu adeegsaday ujeeddooyinka xoojinta substrate -ka guddiga. Halabuurkeedu waa sidatan: Boron oxide B2O3 5 ~ 10% Soodhiyam Sodium/potassium Na2O/K2O 0 ~ 2% Kaalshiyamka KaO 16 ~ 25% Titanium dioxide TiO2 0 ~ 0.8% Oxide Aluminium A12O3 12 ~ 16% Oxide Bir Fe2O3 0.05 ~ 0.4% silica SiO2 52 ~ 56% fluorin F2 0 ~ 1.0%

14. Xabagta Epoxy

Waa polymer Thermosetting polymer aad u badan, oo loo adeegsan karo wax -ka -beddelidda, baakadaha, dahaarka, dhejinta iyo ujeedooyin kale. In warshadaha guddiga wareegga, waa isticmaalka ugu weyn ee dahaarka iyo cusbi isku xira, iyo maro fiber galaas, derin fiber galaas, iyo guddi ka kooban warqad kraft cad, iyo meel karaa nooc kasta oo lagu daro, si ay u gaaraan ujeedada non-guban iyo shaqo aad u saraysa, oo ah maaddada asaasiga u ah dhammaan heerarka guddiga wareegga.

15. Uumiga (qalooca)

Inta lagu jiro samaynta polymerization -ka iyo adkaynta cusbada kala duwan, ereygu wuxuu tilmaamayaa qalooca sii -deynta kulaylka waqti ka dib. Waqtiga marka kuleylka ugu badan la sii daayo ayaa ah meesha ugu sarreysa ee qalooca heerkulka. Iyo Falcelinta Xasaasiga ah- waa falcelin kiimiko oo ka baxsan.

16. Filament

Waxay tilmaamaysaa unugga aasaasiga ah ee marooyinka kala duwan, badanaana ka kooban hal Yarn oo lagu qaloociyo hal Strand ama Yarn-ka badan, ka dibna lagu tolay marada loo baahan yahay “warp” iyo “weft”. Filament waxaa loola jeedaa Filament joogto ah ama Jirid.

17. Buuxi jihada culeyska

Fiberglass ama mesh daabacaadda, taas oo jihada weftigu inta badan ka yar tahay tirada weft dhererka halbeeg, sidaa darteed xooggu wuu yar yahay. Ereygan wuxuu leeyahay Weft isku micne ah.

18, Olol Caabbiye

Waxaa loola jeedaa guddiga wareegga ee cusbi dahaarka, si loo gaaro heer gaar ah oo iska caabin olol ah (gudaha UL94 HB, VO, V1 iyo V2 heerka 4), oo lagu daro kiimikooyinka qaarkood waa in si ula kac ah loogu sameeyaa qaaciddada cusbi, sida bromiin, silica, alumina, sida FR – 4 taas oo in ka badan 20% ka mid ah bromide), ay ka dhigaan looxa wax -qabadku inuu gaadho iska -caabbinta ololka qaarkood. Guud ahaan dab-u-adkaysta FR-4 waxaa lagu calaamadeyn doonaa UL “sumadda cas” ee soo saaraha ee Warp of the substrate (double panel) dusha si loo muujiyo inuu dabka u adkaysan karo. G-10 oo aan lahayn olol dab-damis waxaa lagu daabici karaa oo keliya calaamad-biyood “cagaar ah” oo ah jihada warp. Waxaa jira eray isku mid ah oo loo yaqaan ‘Flame Retardent’, laakiin erayga saxda ah ee looxyada wareegga waa Fire Resist, kaas oo ah mas’uuliyad -darro oo aysan ahayn inay si khaldan u sheegaan dadka caamka ah.

19, Waqtiga Saliidda

Waxay tilmaamaysaa farta geedka ee b-stage. Ka dib marka la helo kuleyl dibadeed, farta geedku waxay isku beddeshaa mid adag ilaa dareere, ka dibna si tartiib tartiib ah ayay u polymerizes oo mar labaad u adkaataa. Inta lagu gudajiro hawsha, wadarta “tirada ilbidhiqsiyo” ee ay soo mareen jilicsanaanta “si ay u muuqato isku -xirnaan” waxaa loo yaqaan “waqtiga isku -dubaridka”. Taasi waa, marka la riixayo saxan lakabyo badan leh, xabagta qulqulka ayaa hawada ka saari karta oo buuxin karta kor iyo hoosba khadka gudaha. Tirada ilbidhiqsiyo ee la isticmaali karo waa muhiimadda dhabta ah ee wakhtiga xabagta. Kani waa sifo muhiim u ah filimka Prepreg ee filimka badhkiis la daaweeyay.

20, Qaybta Gelation

Joogitaanka walxo hufan, ka hor-polymerized ah oo ku jira farta geedka filimka b-stage.