High flame retardancy glass fiber air filtering paper and preparation method thereof
An air filter paper, glass fiber technology, applied in the direction of filter paper, synthetic cellulose/non-cellulose material pulp/paper, filtration and separation, etc., can solve the problem that glass fiber air filter paper loses air filtration function, cannot be flame retardant, and accelerates fire. and other problems, to achieve the effect of high strength, uniform and meticulous voids, and good filtering effect.
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[0022] Example 1:
[0023] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:
[0024] (1) Raw material preparation: Select the non-alkali glass fiber cotton with a diameter of 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um according to the mass ratio of 1:4;
[0025] (2) Dispersion pulping: Add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add water to make the slurry mass concentration 2.2%, then add sulfuric acid solution to adjust the slurry pH=3.8;
[0026] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.2% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;
[0027] (4) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and halogen-free organic phosphate (OP flame retardant);
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Example Embodiment
[0030] Example 2:
[0031] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:
[0032] (1) Raw material preparation: Select the non-alkali glass fiber cotton with a diameter of 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um respectively according to the mass ratio of 1:3.8;
[0033] (2) Dispersion pulping: add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add water to make the slurry mass concentration 2.5%, then add sulfuric acid solution to adjust the slurry pH=4.0;
[0034] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.3% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;
[0035] (4) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and organic phosphate;
[0036] (5) Suction de...
Example Embodiment
[0038] Example 3:
[0039] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:
[0040] (1) Raw material preparation: Select the non-alkali glass fiber cotton with a diameter of 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um respectively according to the mass ratio of 1:4.2;
[0041] (2) Dispersion pulping: Add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add water to make the slurry mass concentration 2.0%, and then add sulfuric acid solution to adjust the slurry pH=3.5;
[0042] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.1% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;
[0043] (4) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and organic phosphate;
[0044] (5) Suctio...
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