Glass fiber wool, nuclear grade glass fiber air filter paper and method for manufacturing nuclear grade glass fiber air filter paper
A technology of air filter paper and glass fiber cotton, which is applied in the direction of synthetic cellulose/non-cellulose material pulp/paper, chemical instruments and methods, filter paper, etc., which can solve the problems of low research level of filter materials and late start of air purification , to enhance the bonding effect, enhance water resistance, and protect the silicone layer
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Embodiment 1
[0021] The preparation method of present embodiment nuclear grade glass fiber air filter paper may further comprise the steps:
[0022] 1) Dispersion pulping: according to the mass ratio of 1:5, select glass fiber cotton with a diameter of 2.7mm and a diameter of 0.35um, add water and acid, and disperse evenly to obtain a slurry;
[0023] 2) wet forming: dilute the slurry in step 1) to a mass concentration of 0.2%, and form wet paper after removing slag;
[0024] 3) spraying and sizing: the wet paper in step 2) is sprayed;
[0025] 4) suction: carry out suction dehydration to step 3) wet paper containing sizing material, make the moisture content of filter paper 38%;
[0026] 5) Drying: dry the wet paper in step 4) at 150° C. to obtain a product.
[0027] In this embodiment, the binder is a mixture of acrylic resin and silicone.
[0028] In this embodiment, the pH value of the slurry obtained in step 1) is 3.8, the mass concentration is 2.3%, and the dispersion time is 25 m...
Embodiment 2
[0031] The preparation method of present embodiment nuclear grade glass fiber air filter paper may further comprise the steps:
[0032] 1) Dispersion pulping: according to the mass ratio of 1:4.5, select glass fiber cotton with a diameter of 3.0mm and a diameter of 0.3um, add water and acid, and disperse evenly to obtain a slurry;
[0033] 2) wet forming: dilute the slurry in step 1) to a mass concentration of 0.3%, and form wet paper after removing slag;
[0034] 3) spraying and sizing: the wet paper in step 2) is sprayed;
[0035] 4) Suction: carry out suction dehydration to step 3) the wet paper containing sizing material, so that the moisture content of the filter paper is 30%;
[0036] 5) Drying: dry the wet paper in step 4) at 200° C. to obtain a product.
[0037] In this embodiment, the binder is a mixture of acrylic resin and silicone.
[0038] In this embodiment, the pH value of the slurry obtained in step 1) is 3.5, the mass concentration is 2.5%, and the dispersi...
Embodiment 3
[0041] The preparation method of present embodiment nuclear grade glass fiber air filter paper may further comprise the steps:
[0042] 1) Dispersion pulping: according to the mass ratio of 1:5.5, select glass fiber cotton with a diameter of 2.5mm and a diameter of 0.4um, add water and acid, and disperse evenly to obtain a slurry;
[0043] 2) wet forming: dilute the slurry in step 1) to a mass concentration of 0.1%, and form wet paper after removing slag;
[0044] 3) spraying and sizing: the wet paper in step 2) is sprayed;
[0045] 4) Suction: carry out suction dehydration to step 3) the wet paper containing sizing material, so that the moisture content of the filter paper is 50%;
[0046] 5) Drying: dry the wet paper in step 4) at 100° C. to obtain a product.
[0047] In this embodiment, the binder is a mixture of acrylic resin and silicone.
[0048] In this embodiment, the pH value of the slurry obtained in step 1) is 4.0, the mass concentration is 2%, and the dispersion...
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