Dab tsi yog cov yam ntxwv ntawm epoxy cob board?

Epoxy resin board tseem hu ua rwb thaiv tsev board, epoxy iav fiber board, 3240 epoxy iav fiber board. Epoxy resin hais txog cov organic polymer tebchaw uas muaj ob lossis ntau pawg epoxy hauv cov molecule. Tus txheeb ze molecular loj ntawm tsis siab. Cov qauv molecular ntawm epoxy resin yog tus cwj pwm los ntawm pawg epoxy nquag hauv cov saw hlau molecular. Cov pab pawg epoxy tuaj yeem nyob ntawm qhov kawg, hauv nruab nrab lossis hauv cov qauv cyclic ntawm cov saw hlau molecular. Vim hais tias cov qauv molecular muaj active epoxy pawg, lawv muaj peev xwm mus hla kev sib txuas cov tshuaj tiv thaiv nrog ntau hom curing agents los tsim insoluble thiab infusible polymers nrog peb-txoj kev network qauv.

Ntau yam resins, curing agents, thiab modifier systems yuav luag hloov mus rau qhov yuav tsum tau ntawm ntau yam kev siv ntawm daim ntawv, thiab qhov ntau yuav yog los ntawm tsis tshua muaj viscosity mus rau siab melting point solids. Ntau cov tshuaj tua kab mob yog siv rau sab kho, thiab cov txheej txheem epoxy resin tuaj yeem yuav luag kho tau hauv qhov kub ntawm 0 ~ 180 ℃.

1, muaj zog adhesion

Lub hav zoov ntawm polar hydroxyl thiab ether daim ntawv cog lus muaj nyob rau hauv cov saw hlau molecular ntawm epoxy resin ua rau nws muaj siab adhesion rau ntau yam khoom. Lub shrinkage ntawm epoxy resin yog tsawg thaum kho, thiab cov kev ntxhov siab sab hauv tsim yog me me, uas kuj pab txhim kho lub zog adhesion.

2, muaj zog contraction

“Cov tshuaj tiv thaiv ntawm epoxy resin thiab tus neeg sawv cev kho siv yog ua los ntawm cov tshuaj tiv thaiv ncaj qha los yog lub nplhaib-qhib polymerization cov tshuaj tiv thaiv ntawm epoxy pawg hauv cov molecule resin, thiab tsis muaj dej los yog lwm yam khoom lag luam tawm. Piv nrog unsaturated polyester resins thiab phenolic resins, lawv pom tsawg heev shrinkage (tsawg dua 2%) thaum kho.

3, mechanical zog

Cov kho epoxy resin system muaj cov cuab yeej zoo heev.

4, kev ua haujlwm hluav taws xob

Cov txheej txheem kho epoxy resin yog cov khoom siv insulating zoo heev nrog cov khoom siv hluav taws xob siab, qhov dej tsis zoo, thiab arc tsis kam.

5, tshuaj stability

Feem ntau, kho epoxy resin system muaj zoo alkali tsis kam, acid kuj thiab hnyav kuj. Zoo li lwm yam khoom ntawm cov kab mob epoxy kho tau, cov tshuaj lom neeg ruaj khov kuj yog nyob ntawm cov khoom siv thiab cov neeg ua haujlwm kho. Kev xaiv tsim nyog ntawm epoxy resin thiab tus neeg sawv cev kho tuaj yeem ua rau nws muaj tshuaj lom neeg tshwj xeeb.

6, seem stability

Kev sib xyaw ua ke ntawm ntau yam ntawm cov khoom saum toj no ua rau epoxy resin system muaj qhov zoo ntawm qhov ruaj khov thiab ua haujlwm ntev.

7, pwm resistant

Cov kho epoxy resin system yog resistant rau feem ntau pwm thiab yuav siv tau nyob rau hauv hnyav tropical tej yam kev mob.