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Paper made through ASA modified nanometer silica, and preparation method thereof

A nano-silica, modified technology, used in the field of paper made by filling

Inactive Publication Date: 2016-04-20
唐雯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]The current paper pulp internal sizing agents mainly include rosin glue, reinforced rosin glue, dispersed rosin glue, petroleum resin glue, paraffin glue, etc. Among them, rosin sizing agent And petroleum resin sizing agents are mainly used in acidic papermaking, and the effect on filler modification is poor, so it is difficult to meet the requirements of industrial production

Method used

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  • Paper made through ASA modified nanometer silica, and preparation method thereof
  • Paper made through ASA modified nanometer silica, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of paper made of ASA modified nano silicon dioxide, prepared according to the following steps:

[0031] (1) First make aluminum sulfate into an aqueous solution with a mass concentration of 5%, impregnate the filter paper for 1 min, and place the filter paper at 100 o C under drying number;

[0032] (2) Put ASA with a concentration of 6% in ethanol, add nano-silica and disperse it in the ASA-ethanol solution according to the ratio of nano-silica:ASA=1:1, and obtain ASA-ethanol containing nano-silica solution, the filter paper impregnated with aluminum sulfate described in step (1), was pulled and dipped several times in the ethanol solution of ASA-nanometer silicon dioxide; after that, it was air-dried for 24 hours to obtain.

Embodiment 2

[0034] A kind of paper made of ASA modified nano silicon dioxide, prepared according to the following steps:

[0035] (1) First make aluminum sulfate into an aqueous solution with a mass concentration of 20%, impregnate the filter paper for 3 minutes, and place the filter paper at 105 o Drying number at C; (2) Put ASA with a concentration of 10% in ethanol, add nano-silica in the ratio of nano-silica:ASA=1:4 and disperse it in ASA-ethanol solution, and oscillate for 8 minutes to obtain ASA-ethanol solution containing nano-silica, the prepared ASA-ethanol solution is coated on the surface of the filter paper with a paint scraper, and the coating amount should be controlled at 8g / m 2 ; Afterwards, the impregnated filter paper was dried at 105° C. for 15 minutes in a constant-temperature blast drying oven to obtain a final product.

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Abstract

The present invention relates to paper made through ASA modified nanometer silica. The preparation method comprises: (1) preparing an aluminum sulfate aqueous solution with a concentration of 5-20%, dipping filtration paper in the solution for 1-3 min, drying the filtration paper at a temperature of 100-105 DEG C, and numbering; and (2) adding ASA with a concentration of 6-10% to ethanol, adding nanometer silica according to a ratio of the nanometer silica to the ASA of 1:1-1:4, dispersing into the ASA-ethanol solution to obtain the ASA-ethanol solution containing the nanometer silica, carrying out pulling dipping on the filtration paper obtained in the step (1) in the ASA-nanometer silica ethanol solution a plurality of times, and carrying out air drying for 24-48 h so as to obtain the product.

Description

technical field [0001] The invention relates to a paper made with filling, in particular to a paper made of ASA modified nano silicon dioxide and a preparation method thereof. Background technique [0002] ASA (Chinese name: alkenyl succinic anhydride) is composed of unsaturated olefin skeleton linking succinic anhydride. It is usually produced in two steps: in the first step, unsaturated linear or branched olefins (A-olefins) are isomerized by double bond displacement, that is, A-olefins are isomerized to internal olefins. The ASA thus produced is liquid at room temperature. This is an important condition for emulsifying the sizing agent on-site at the paper mill. In the second step, the isomerized olefin mixture is reacted with maleic anhydride, and the ASA raw material is obtained through addition reaction and corresponding refining under certain temperature, pressure and catalyst. [0003] ASA is a highly reactive sizing agent. The hydrolysis rate and activity half-l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/69D21H17/68D21H17/14
Inventor 唐雯
Owner 唐雯
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