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Cane trash-based composite filler, preparation method thereof and paper comprising composite filler

A technology of composite filler and bagasse, which is applied in the field of papermaking, can solve problems such as unsatisfactory results, and achieve the effects of improving the retention rate of the wire part, the retention rate of toughening, and reducing costs

Inactive Publication Date: 2017-06-30
GUANGDONG IND TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the main components of bagasse are cellulose, hemicellulose, lignin, pectin, crude protein and ash, etc., there are a lot of alcoholic hydroxyl groups on the surface of bagasse. High, but it still cannot achieve satisfactory results when it is used for paper that requires higher strength

Method used

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  • Cane trash-based composite filler, preparation method thereof and paper comprising composite filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This example is the manufacturing embodiment of the bagasse grinding of the present invention.

[0036] The air-dried bagasse is crushed with a hammer crusher. Under the action of the air flow in the crushing room, the crushed matter is discharged through a sieve (screen mesh diameter 4mm), and the crushed matter is then classified by the secondary air damper when it is fully opened. The type impact mill crushes the coarsely broken and sieved bagasse, and collects bagasse powder particles smaller than 60 mesh.

Embodiment 2

[0038] This example is a manufacturing example of the bagasse-based composite filler of the present invention.

[0039] A. Coating modification:

[0040] With 50g of the bagasse powder particles of the above-mentioned embodiment 1, 200g of deionized water, 0.001g of EDTA-2Na, 1.50g of acrylamide, 0.20g of dimethyldiallylammonium chloride, and 0.02g of methylenebisacrylamide, Sequentially add to the 300ml there-necked flask which has been placed in a temperature-controlled water bath with a stirring and nitrogen device, stir to form a suspension, then use dilute nitric acid (30%) to adjust the pH value of the reaction system to 3.0-4.0, and then add nitric acid 0.015 g of cerium amine, and then bubbling nitrogen and deoxygenating for 30 minutes, then heating up to 50°C while stirring, stirring and reacting at 48-52°C for 5 hours, and then ending the reaction.

[0041] B. Drying:

[0042] Then, the above-mentioned coated and modified powder suspension was filtered, and then th...

Embodiment 3

[0044] This example is another manufacturing example of the bagasse-based composite filler of the present invention.

[0045] A. Coating modification:

[0046] 50 g of the bagasse powder particles of the above-mentioned embodiment 1, 200 g of deionized water, 0.001 g of sodium ethylenediamine tetramethylene phosphate (EDTMPS), 2.0 g of acrylamide, and 0.20 g of methacryloyloxyethyltrimethylammonium chloride g, 0.015g of methylenebisacrylamide, added to a 300ml three-necked flask which has been placed in a temperature-controlled water bath and equipped with a stirring and nitrogen device, stirred into a suspension, and then added 0.025g of cerium ammonium nitrate and dissolved The mixed solution in 1 ml of 1N nitric acid was then pumped with nitrogen and oxygen for 30 minutes, then the temperature was raised to 40°C while stirring, and the reaction was terminated after stirring at 40-45°C for 6 hours.

[0047] B. Drying:

[0048] Then, the above-mentioned coated and modified ...

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Abstract

The invention discloses a cane trash-based composite filler. The cane trash-based composite filler is a compound with a core-shell structure, wherein cane trash powder granules are used as cores of the compound with the core-shell structure, a covering film grafted with cane trash powder particles and containing acrylamide copolymer is used as a shell layer of the compound with the core-shell structure, the cane trash powder particles are particles obtained by grinding cane trash into 30-200 meshes, and the covering film containing acrylamide copolymer is formed by copolymerizing monomers (a), (b) and (c).

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a technique of using sugar production waste as papermaking filler. Background technique [0002] Bagasse is the main waste in sugar production and an important renewable resource with great comprehensive utilization value. [0003] In the process of paper production, adding fillers to pulp can greatly improve the performance of some aspects of paper, such as opacity, whiteness, smoothness and printability. At the same time, it can also increase the speed of papermaking and reduce the amount of steam. Reduce paper production costs. [0004] At present, in the papermaking process, inorganic mineral fillers are mainly used in the filling process technology. Related paper types will produce a large amount of inorganic mineral filler impurities such as deinking sludge during the secondary fiber recycling process, and a large amount of inorganic mineral fillers. Miner...

Claims

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Application Information

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IPC IPC(8): D21H17/69C08F289/00C08F220/56
CPCD21H17/69C08F289/00
Inventor 郭纬张赣霞李汝基
Owner GUANGDONG IND TECHN COLLEGE
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