Raws li cov khoom siv raw rau silicone, yog lub ntsiab ntawm silicon dioxide?
Silicon Dioxide (feem ntau yog hais txog fumed silica, precipitated silica (lub ntsiab} Kev hloov kho, thiab txhim kho kev ua tiav. nws yog cov khoom siv uas txiav txim siab thiab cov ntawv teev npe ntawm silicone.
1. cov tub ntxhais lub luag haujlwm: kev txhawb zog - txhim kho cov khoom siv me txhua yam ntawm silicone
Lub cev loj ntawm silicone (silicone roj hmab) yog txoj kab sib dhos (xws li polydimethiloxane)}}} Thaum nws muaj zog tsawg (tensile muaj zog yog feem ntau<1MPa), which can hardly be used in actual industrial scenarios.
Kev txhawb txoj cai ntawm silica yog: cov pawg hydroxyl (sib xyaw ua ke ntawm cov roj hmab uas muaj kev ntxhov siab, yog cov khoom siv roj av uas muaj ntau yam ntxiv, yog li txhim kho cov khoom siv roj ntsha
Txhim kho lub zog tensile: lub zog tensile ntawm unreinforcored silicone yog hais txog li {} mpa mpa cia li ntawm cov nyiaj thiab hom), ntsib cov cai ntawm kev sib khi thiab cov khoom moulding;
Txhim kho cov kua zog lub zog: zam kev tawg nrawm ntawm silicone thaum nraus los ntawm lub zog, hoses thiab lwm yam khoom uas cia siab rau qhov kev ua tau zoo no;
Txhim kho cov hnav tsis kam: Txo cov kev ploj ntawm silicone thaum sib txhuam (xws li Silicone Roj Hmab Chais thiab Gaskets)} Kho lub Hardness thiab Elasticity ntawm Silicone
Qhov nyiaj thiab qhov me me ntawm silica ncaj qha cuam tshuam rau lub hardness ntawm silicone:
Qhov siab dua tus nqi ntxiv (feem ntau 30%-80%), ntau dua20-3080-90 rau tawv silicone);
Qhov me me qhov loj me me (xws li fumed silica, particle loj {}} Cov roj hmab molecular, thiab ntau sib npaug ntawm cov roj hmab molecular, thiab qhov yooj yim sib luag (tsis yooj yim heev).
Piv txwv: Kho mob muag silicone cov dav hlau uas yuav tsum tau hardness tsawg, thiab ib qho me me ntawm silica ntxiv; Muaj Sealing Silicone Pads Yuav Tsum Tau Hardness Siab, thiab tus nqi yuav tsum tau nce ntxiv.
{{03.} txhim kho kev ua haujlwm ntawm silicone
Nyob rau hauv cov txheej txheem ntawm silicone sib tov thiab moulding (xws li moulding (xws li moulding), silica tuaj yeem txhim kho kev ua haujlwm:
Tiv thaiv cov khoom nplaum: Silica hais yuav txo cov nplaum ntawm silicone hauv pwm, ua kom cov khoom sib tsoo ntawm cov khoom lag luam smoother;
Txhim kho qhov chaw txhav txhav: Lub fluidity ntawm silicone tsis muaj kev sib zog heev {}}}}}}}} Thaum sawv ntsug), xws li Silicone Tubes thiab Sealing daim hlab);
Inhibit shrinkage: thaum silicone yog vulicone (kho tau), nws tuaj yeem ua kom muaj qhov sib txawv ntawm cov khoom lag luam molecular, thiab kom qhov tseeb ntawm cov khoom lag luam .
