Method for preparing glass fiber by compounding calcined bentonite and pyrophyllite
A technology for calcining bentonite and glass fiber, which is applied in the field of glass fiber and can solve the problems of general strength and performance of glass fiber
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Embodiment 1
[0050] A method for preparing glass fibers by combining calcined bentonite and pyrophyllite, comprising the following steps:
[0051] (1) Use acidic potassium permanganate solution to carry out vacuum impregnation treatment on bentonite, then obtain pretreated bentonite, and then calcine the pretreated bentonite to obtain calcined bentonite; the mass fraction of potassium permanganate in the acidic potassium permanganate solution is is 1.2%; the pH of the acidic potassium permanganate solution is 2.8. The mixing ratio of the acidic potassium permanganate solution and bentonite is 500ml:120g; the vacuum impregnation temperature is 80°C; the vacuum degree of vacuum impregnation is 0.015MPa. The calcination treatment time is 40 minutes; the calcination temperature is 880°C.
[0052] (2) Carry out ball milling treatment to pyrophyllite to obtain ball milling pyrophyllite; said ball milling treatment is: mixing together pyrophyllite and blast furnace slag, and then carrying out ba...
Embodiment 2
[0058] A method for preparing glass fibers by combining calcined bentonite and pyrophyllite, comprising the following steps:
[0059](1) Use acidic potassium permanganate solution to carry out vacuum impregnation treatment on bentonite, then obtain pretreated bentonite, and then calcine the pretreated bentonite to obtain calcined bentonite; the mass fraction of potassium permanganate in the acidic potassium permanganate solution is is 1.5%; the pH of the acidic potassium permanganate solution is 2.8. The mixing ratio of the acid potassium permanganate solution and bentonite is 500ml:150g; the vacuum impregnation temperature is 85°C; the vacuum impregnation degree is 0.018MPa. The calcination treatment time is 40-50min; the calcination temperature is 890°C.
[0060] (2) Carry out ball milling treatment to pyrophyllite to obtain ball milling pyrophyllite; said ball milling treatment is: mixing together pyrophyllite and blast furnace slag, and then carrying out ball milling trea...
Embodiment 3
[0066] A method for preparing glass fibers by combining calcined bentonite and pyrophyllite, comprising the following steps:
[0067] (1) Use acidic potassium permanganate solution to carry out vacuum impregnation treatment on bentonite, then obtain pretreated bentonite, and then calcine the pretreated bentonite to obtain calcined bentonite; the mass fraction of potassium permanganate in the acidic potassium permanganate solution is is 1.3%; the pH of the acidic potassium permanganate solution is 2.8. The mixing ratio of the acid potassium permanganate solution and bentonite is 500ml:135g; the vacuum impregnation temperature is 82°C; the vacuum impregnation degree is 0.017MPa. The calcination treatment time is 44 minutes; the calcination temperature is 886°C.
[0068] (2) Carry out ball milling treatment to pyrophyllite to obtain ball milling pyrophyllite; said ball milling treatment is: mixing together pyrophyllite and blast furnace slag, and then carrying out ball milling t...
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