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Preparation method of palygorskite clay rich mineral paper

A technology of palygorskite clay and soil stone, which is applied in the field of preparation of palygorskite clay stone paper, can solve the problems of low printing surface strength, low extrusion fluidity, no fluffy feeling in writing, etc. Mechanical properties, cost reduction effect

Inactive Publication Date: 2012-08-08
嘉兴君宏光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these stone papers have disadvantages such as large specific gravity, low extrusion fluidity, low printing surface strength, and no fluffy feeling when writing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, the preparation of primary stone paper

[0025] a. Grind palygorskite clay raw ore or purified palygorskite clay to more than 1500 mesh, and then mix with silane coupling agent (KH-560) (addition amount is 0.5%-3% of palygorskite clay), lubricant (Addition amount is 1%-4% of palygorskite clay), antioxidant (0.1%-0.25%) is added to high-speed stirring in a high-speed mixer to prepare modified palygorskite clay powder;

[0026] b. Add polyethylene (addition amount is 1 / 4 of palygorskite clay) into the high-speed mixer, and continue stirring for 30 minutes;

[0027] c. Put the mixture into the internal mixer, and knead at 150°C~170°C for 10min~25min to obtain a lumpy mixture;

[0028] d. Put the block mixture into the forced feeder, press it into the paper film extruder, adjust the temperature of each section of the extruder to extrude: the first section is at 130°C~150°C, and the second section is at 100°C~120°C , the third stage is at 130°C~150°C, the fou...

Embodiment 2

[0031] Embodiment 2, the preparation of refined stone paper

[0032] a. Grind palygorskite clay raw ore or purified palygorskite clay to more than 1500 meshes, and then mix with silane coupling agent (KH-550) (addition amount is 0.5%-3% of palygorskite clay), lubricant (adding amount is 1%-4% of palygorskite clay), antioxidant (0.1%-0.25%), whitening agent (adding amount is 0.01%-0.1% of total stone paper) and static eliminator (adding The amount is 0.05%~0.15% of the total amount of stone paper) added to a high-speed mixer and stirred at a high speed to obtain a modified palygorskite clay powder;

[0033] b. Add polyethylene (addition amount is 1 / 4 of palygorskite clay) into the high-speed mixer, and continue stirring for 30 minutes;

[0034] c. same as embodiment 1;

[0035] d. same as embodiment 1;

[0036] e. Corona treatment is performed on the primary stone paper to make the surface rough; the prepared mixed emulsion (acrylic resin and polyvinyl butyral resin are diss...

Embodiment 3

[0039] Embodiment 3, the preparation of primary stone paper

[0040] a. with embodiment 1;

[0041] b. Add polypropylene (addition amount is 1 / 4 of palygorskite clay) to the high-speed mixer, and continue stirring for 30 minutes;

[0042] c. same as embodiment 1;

[0043] d. Same as Example 1.

[0044] Its performance index is: thickness 0.03 mm, weight 29 g / m 2 , specific gravity 0.62g / cm 3 , whiteness 91%, stiffness 0.25 mN . m, the printing surface intensity is 1.2 m / s.

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Abstract

The invention provides a preparation method of palygorskite clay rich mineral paper, which comprises mixing modified palygorskite clay, high-polymer material polyethylene, polypropylene and auxiliaries, and then performing banburying, extrusion, film blowing, traction drawing, forming and pressing to obtain primary rich mineral paper with thickness of 0.03mm-3mm, wherein the primary rich mineral paper mainly serves as powder packing bags, packing linings and the like; and performing corona treatment on the primary rich mineral paper, and then coating the primary rich mineral paper with organic resin to obtain refined rich mineral paper which has the advantages of being high in strength, excellent in printing effect, soft in color, waterproof, oil-proof, resistant to chemicals, stable in size, not easy to age, good in heat insulation, not afraid of damage caused by worms and the like and mainly serves as external packing of products, advertisement paper, writing paper and the like. Due to the fact that the palygorskite clay has hollow fiber-shaped structures, good rheological property and the function of serving as a high-polymer material reinforcing agent, compared with the paper prepared by other minerals, the rich mineral paper made of the palygorskite clay has the advantages of being light in mass, easy to process, good in mechanical property and the like, and the application fields of the rich mineral paper are broadened.

Description

technical field [0001] The invention relates to a preparation method of stone paper, in particular to a preparation method of palygorskite clay stone paper. Background technique [0002] Stone paper is made of limestone mineral resources with large reserves and wide distribution as the main raw material (calcium carbonate content is 70-80%), and high-molecular polymer as the base material (content is 20-30%). The chemical principle and the characteristics of polymer modification are made by polymer extrusion and blow molding after special processing. Stone paper products have the same writing and printing effects as plant fiber paper, and at the same time have the core performance of plastic packaging. Stone paper does not need water in the whole production process, does not need to add strong acid, strong alkali, bleaching powder and many organic chlorides. Compared with the traditional papermaking process, it saves several important pollution steps such as cooking, washi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L33/00C08L29/14C08K9/04C08K9/06C08K3/34B29C47/92B29C48/92
CPCB29C48/0017B29C48/08
Inventor 张哲张惠怡沈智高淑玲杨翠玲马国富杨志旺雷自强
Owner 嘉兴君宏光学有限公司