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Calcium silicate fiber special for stone paper and preparation method thereof

A technology of stone paper and calcium silicate, applied in the field of stone paper, can solve the problems such as hindering the popularization and application process of stone paper, difficulty in exerting fiber network support, difficulty in network structure, etc., and achieves good hand feeling, reduced density and compatibility good effect

Active Publication Date: 2017-05-10
德州纺兴纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because stone paper is formed by screw extrusion and calendering, it is difficult to fully retain the network structure of mineral fibers when used to prepare stone paper, which makes it difficult for mineral fibers to exert the network support of fibers in stone paper, thus As a result, compared with traditional paper, stone paper still has a heavy hand feeling and lacks paper feeling, which hinders the promotion and application of stone paper

Method used

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  • Calcium silicate fiber special for stone paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031](1) Suspend and debundle 60 parts by weight of wollastonite with a fibrous crystal structure in a flat jet mill, control the classification speed at 2000 rpm, and obtain acicular wollastonite powder through supersonic debundling and classification by airflow;

[0032] (2) Add the acicular wollastonite powder obtained in step (1) into 40% dilute sulfuric acid, stir and acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, and make the acicular wollastonite single The bundle fibers are completely soaked in styrene solution, and the excess styrene is filtered through a centrifuge to obtain modified wollastonite;

[0033] (3) Add 40 parts by weight of diatomite to 30% dilute sulfuric acid, stir and acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, so that the diatomite is completely soaked in styrene solution, and centrifuge Excess styrene is filtered by machine to obtain modified diatomite;

[0034] (4) Send the m...

Embodiment 2

[0037] (1) Suspend and debundle 80 parts by weight of wollastonite with a fibrous crystal structure in a vortex jet mill, control the classification speed at 2000 rpm, and obtain acicular wollastonite powder through supersonic debundling and classification by airflow;

[0038] (2) Add the acicular wollastonite micropowder obtained in step (1) into 50% dilute sulfuric acid, stir and acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, and make the acicular wollastonite single The bundle fibers are completely soaked in styrene solution, and the excess styrene is filtered through a centrifuge to obtain modified wollastonite;

[0039] (3) Add 20 parts by weight of diatomite to dilute sulfuric acid with a concentration of 50% to stir and acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, so that the diatomite is completely soaked in styrene solution, and centrifuge Excess styrene is filtered by machine to obtain modified d...

Embodiment 3

[0043] (1) Suspend and debundle 70 parts by weight of wollastonite with a fiber crystal structure in a vortex jet mill, control the classification speed at 2300 rpm, and obtain acicular wollastonite powder through supersonic debundling and classification by airflow;

[0044] (2) Add the acicular wollastonite powder obtained in step (1) into 30% dilute sulfuric acid, stir and acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, and make the acicular wollastonite single The bundle fibers are completely soaked in styrene solution, and the excess styrene is filtered through a centrifuge to obtain modified wollastonite;

[0045] (3) Add 30 parts by weight of diatomite to dilute sulfuric acid with a concentration of 50% and stir to acidify for 2-3 hours, then filter, soak in excess styrene solution for 24 hours, so that the diatomite is completely soaked in styrene solution, and centrifuge Excess styrene is filtered by machine to obtain modified diatomit...

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Abstract

The invention discloses a special calcium metasilicate fiber for rich mineral paper. The special calcium metasilicate fiber for rich mineral paper is characterized by being formed by acicular wollastonite and kieselguhr which are connected in an interspersing manner, having a fibrous flexible network fiber ball structure and likely to disperse in a small amount of high-molecular polymer to form rich mineral paper. Different from the traditional powder fibers such as calcium carbonate and mineral fiber which are used as fillers individually in rich mineral paper, the special calcium metasilicate fiber disclosed by the invention has the beneficial effects that approximately spherical kieselguhr which has an elastic buffer effect is used for effective avoiding the defect that the rich mineral paper is compacted because of extrusion by screws and calendering by a calendar in the processing process of the rich mineral paper, so that the processed rich mineral paper fully retains a fibrous network support property and a fluffy characteristic, the density of the rich mineral paper is reduced, the processed rich mineral paper has the advantages of good handfeel and light weight and is closer to traditional plant fiber paper. Furthermore, the invention provides a preparation method of the special calcium metasilicate fiber for rich mineral paper. According to the preparation method, through acidifying, styrene soaking, interspersing and polymerizing, single fiber-bundles are well dispersed to ensure flexibility, have nonpolarity and also have good compatibility with high polymer material.

Description

technical field [0001] The invention relates to the field of stone paper, in particular the invention provides a calcium silicate mineral fiber which can be used for stone paper and a preparation method thereof. Background technique [0002] Cai Lun's technology of using plant fiber to make paper is an outstanding invention in the history of human civilization. The appearance of paper has brought great convenience to human life and study. Papermaking technology has almost reached the point of perfection after continuous transformation and development. However, with the extensive application of paper in packaging and other fields, the demand is increasing, and the production needs to consume a large amount of forest resources and generate a large amount of waste water. Therefore, the technical aspect of utilizing plant fiber to make paper is leading a severe challenge. [0003] In order to reduce the demand for plant fibers in papermaking, some plant fibers have been replac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K9/02C08K7/10C08K3/34C08L23/06C08L27/06C08L23/12C08L67/02
Inventor 陈庆曾军堂
Owner 德州纺兴纤维有限公司
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