- 23
- Sep
Yeyiphi into ebonakalayo ibhodi yeglasi yefayibrari epoxy
Yeyiphi into ebonakalayo ibhodi yeglasi yefayibrari epoxy
Yeyiphi imveliso yebhodi yeglasi yefrip epoxy? Yeyiphi impahla ibhodi epoxy nentlaka? Kungcono ukusebenzisa ezi zinto zilandelayo:
A. yi-epoxy resin, ebhekisa kwigama leepolymer ngokubanzi elinamaqela epoxy. Ilungele ikakhulu imithombo yeendaba eneepropathi ezonakalisayo. Inokuchasana kwealkali okubalaseleyo kwaye inokumelana nokubola kweeacidi ngokubanzi (ngaphandle kwehydrofluoric acid). Imfuno yee-epoxy resins kwintengiso ye-corrosion iye yehliswa kakhulu. Esona sizathu siphambili kukuba ii-resin zepolyester ezingafakwanga kwii-resin ezinganyangekiyo nokubola zikhule ngokukhawuleza kwaye kukho iintlobo ezininzi. Imakethi yasekhaya inesiqalo esinephepha se-polyester esingafakwanga, ngenxa yoko i-epoxy resins iseyeyona ntlobo iphambili ye-resin kwicandelo lokulwa nokubola. Ezona mpawu ziphambili ze-epoxy resin ngamandla aphezulu okubopha, ukuncipha okuphantsi, ukukrala kwemveliso ephezulu kunye nexabiso eliphezulu. Ubushushu bokusetyenziswa kwentlaka ephilisiweyo kubushushu begumbi abudluli kwi-80 ° C;
B. Ngummeli ophilisayo webhodi yeglasi yefayibha ye-epoxy) epoxy resin. Kukho iintlobo ezahlukeneyo ze-amine, i-acid anhydrides, i-resin compounds njalo njalo. Phakathi kwazo, iikhompawundi ze-amine zezona zisetyenziswa kakhulu. Zinokwahlulwa zibe zii-amine ezinamafutha, ii-amine ezinamakha kunye nee-amino eziguqulweyo. Iindidi ezininzi ze-amine, ezinje nge-ethylenediamine, m-phenylenediamine, xylylenediamine, polyamide, diethylenetriamine kunye nezinye iikhompawundi, zinetyhefu kwaye zinevumba, ngenxa yoko ngokuthe ngcembe zisetyenziswa zii-arhente ezintsha ezingezizo ityhefu nezinetyhefu ephantsi (ezinje nge: T4 , 31, C590, njl.
C. Yi-fr4 epoxy iglasi fiberboard exutywe. I-epoxy resin ihlala ihlanjululwa ngezinyibilikisi ezingasebenziyo ezinjenge-ethanol, i-acetone, i-benzene, i-toluene, i-xylene, njl. Njl. I-phenyl ether, i-polyglycidyl ether, njl njl.
D. It is a plasticizer kunye toughening arhente for fr4 epoxy iglasi fiberboard. I-epoxy resin elula iyaqaqamba emva kokunyanga, kwaye inefuthe elomeleleyo lokuqina, ukugoba amandla kunye nokumelana nobushushu. Iiplasticizers kunye nee-tougheners zihlala zisetyenziselwa ukwenza i-Resin inyuse iplastikhi, iphucula ubulukhuni, inyusa amandla okugoba kunye nefuthe lokuqina;
E. Yigcwalisi, umgubo, isimbuku esirhabaxa, isixa esirhabaxa, kunye neeflaski zeglasi ngokudibeneyo kubizwa ngokuba kukugcwalisa. Ukongeza ii-fillers ezifanelekileyo kunokunciphisa iindleko zemveliso kunye nokuphucula ukusebenza kwayo. Isixa sokugcwalisa kwiglu sisisixhobo se-resin ngesixa esiyi-20-40% (ubunzima), isixa sinokuba ngaphezulu xa ulungiselela i-putty, ngokubanzi inokuba ngama-2 ukuya kuma-4 amaxesha isixa se-resin, umgubo osetyenziswa ngokuxhaphakileyo ngumgubo we-quartz, i-porcelain umgubo, ukongeza umgubo wegraphite, umgubo oqaqambileyo weRock, umgubo we-talcum, umgubo we-mica, njl.