Sidee ku saabsan alaabta guddiga resin epoxy

Resin, hardener, hababka wax ka beddelka ayaa diyaar u ah inay ku habboonaadaan dhammaan shuruudaha foomamka codsiga, oo u dhexeeya mawjadyo aad u hooseeya ilaa kuwa adag oo heer sare ah. Daawooyin kala duwan ayaa loo isticmaalaa daawaynta, iyo nidaamka resin epoxy waxa lagu dawayn karaa ku dhawaad ​​heerkulka u dhexeeya 0 ilaa 180 °C.

1. adhesion xoog leh

Jiritaanka hydroxyl polar iyo ether bonds ee ku jira silsiladda molecular ee resin epoxy ka dhigaysa in ay yeelato ku dhegganaan sare oo walxaha kala duwan. Xabagta Epoxy waxay leeyihiin hoos u dhac hooseeya inta lagu jiro daaweynta iyo diiqad hoose oo hoose, taas oo sidoo kale gacan ka geysata hagaajinta xoogga adhesion.

2. Gaabin xooggan

Dareen-celinta u dhaxaysa xabagta epoxy-ga iyo wakiilka daawaynta ee la isticmaalo waxa lagu fuliyaa fal-celin toos ah oo dheeraad ah ama falcelinta polymerization-ka-furay ee kooxda epoxy ee ku jirta molecule resin-ka, oo aan biyo ama alaab kale oo kacsan la sii dayn. Waxay muujiyaan hoos u dhac aad u hooseeya (in ka yar 2%) inta lagu jiro daawaynta marka la barbar dhigo resins polyester-ka aan dheregsanayn iyo resins phenolic.

3. Shaqada makaanikada

Nidaamka resin epoxy ee la daweeyay wuxuu leeyahay sifooyin farsamo oo aad u wanaagsan.

4. Shaqada korantada

Nidaamka xabagta epoxy ee la daweeyay waa walxo dahaadhid aad u wanaagsan oo leh sifooyin koronto oo sarreeya, caabbinta daadinta dusha sare iyo iska caabinta arc.

5. Degganaanta kiimikada

Guud ahaan, nidaamka resin epoxy la daaweeyay waxa uu leeyahay iska caabin alkali heer sare ah, caabin aashitada iyo caabin dareere. Sida shaqooyinka kale ee hababka epoxy-ga ee la daweeyay, xasiloonida kiimikaad waxay ku xidhan tahay resinka la doortay iyo wakiilka daawaynta. Xulashada habboon ee xabagta epoxy-ga iyo wakiilka daawayntu waxay ka dhigi kartaa inay yeelato hawl gaar ah oo xasiloonida kiimikada.

6. xasilloonida miisaanka

Isku darka qaar badan oo ka mid ah sifooyinka kor ku xusan waxay siinayaan hababka resin epoxy xasilooni iyo adkeysi cabbir heersare ah.

7. Caaryada u adkaysta

Nidaamyada epoxy-ga ee la daweeyay ayaa u adkeysanaya caaryada intooda badan waxaana loo isticmaali karaa xaaladaha kulaylaha adag.