Qualitative filtration paper, preparation method and applications thereof
A qualitative filter paper and amphoteric technology, applied in the field of filter paper, can solve the problems of poor water resistance, unusable quality analysis, and increased filtration resistance of qualitative filter paper, and achieve the effects of good water resistance, good elasticity, and resource saving
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Embodiment 1
[0021] Qualitative filter paper, including 30 parts by weight of corn stalk fiber, 5 parts of polypropylene fiber and 30 parts of high-density cotton linter pulp, 0.05 part of amphoteric polyacrylamide and 0.2 part of modified starch light calcium carbonate were used in the preparation , 0.05 parts of polyethylene oxide having a molecular weight of 2.5 million to 3 million.
[0022] The preparation of the high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.
[0023] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.
[0024] The preparation method of the described amphoteric polyacrylamide is to dissolve chitosan in acetic acid at 70°C, add acrylamide (AM), maleic acid (MA), methacryloyloxyethyltrimethylammonium chlo...
Embodiment 2
[0033] Qualitative filter paper, including 50 parts by weight of corn stalk fiber, 12 parts of polypropylene fiber and 50 parts of high-density cotton linter pulp, 2 parts of amphoteric polyacrylamide used in the preparation, and 0.8 part of modified starch light calcium carbonate , 3 parts of polyethylene oxide with a molecular weight of 2.5 million to 3 million, and 0.2 part of a defoamer.
[0034] The preparation of the high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.
[0035] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.
[0036] The preparation method of the described amphoteric polyacrylamide is to dissolve chitosan in acetic acid at 70°C, add acrylamide (AM), maleic acid (MA), methacryloyloxyethyltrim...
Embodiment 3
[0044] Qualitative filter paper, including 45 parts by weight of corn stalk fiber, 10 parts of polypropylene fiber and 36 parts of high-density cotton linter pulp, 1.0 part of amphoteric polyacrylamide used in the preparation, 0.4 part of modified starch light calcium carbonate , 1.5 parts of polyethylene oxide with a molecular weight of 2.5 million to 3 million, and 0.1 part of a defoamer.
[0045] The preparation of the high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.
[0046] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.
[0047] The preparation method of the described amphoteric polyacrylamide is to dissolve chitosan in acetic acid at 70°C, add acrylamide (AM), maleic acid (MA), methacryloyloxyethyltrimeth...
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