A fire-resistant, moisture-resistant and high-toughness gel paper and its preparation method

A high-toughness, gel technology, applied in printing, papermaking, and polymer material packaging, can solve the problems of restricting the production and use of polymer paper, poor flexibility of plant fiber paper, poor rigidity of polymer paper, etc., and achieve excellent water storage ability, excellent recovery, and excellent toughness

Active Publication Date: 2015-12-02
TIANJIN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, polymer paper has the advantages of higher humidity than cellulose paper commonly used, resistance to folding, not easy to deform, water resistance, chemical and micro-corrosion resistance, easy modification, and easy processing. However, polymer paper has poor rigidity, and due to It cannot be decomposed by microorganisms, it is difficult to handle, and it is easy to pollute the environment, thus limiting the production and use of polymer paper
[0009] In order to solve the shortcomings of plant fiber paper, such as poor flexibility, low ignition point, and easy moisture and mildew, we have prepared a polymer hydrogel paper material

Method used

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  • A fire-resistant, moisture-resistant and high-toughness gel paper and its preparation method

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Embodiment 1

[0039] 1) Preparation of gel pulp prepolymerization solution: Add 3g of acrylamide and 0.3g of sodium alginate into deionized water in sequence at 20°C to prepare a solution with a mass concentration of 11%, and mix and stir for 50 minutes; until a uniform and transparent solution is obtained After the polymer solution, add 0.3g lithium magnesium silicate, 0.05g N, N'-methylenebisacrylamide and 0.03g ammonium persulfate to the system, adjust the temperature to 20°C, and add 0.06g lavender and 0.1 g of calcium sulfate to slowly polymerize the system; when the solution reaches a homogeneous state again, the reaction system is statically defoamed for 30 min; Obtain gel pulp prepolymerization liquid.

[0040] 2) Forming of gel paper: inject the gel pulp pre-polymerized liquid prepared in step 1) into a molding mold with a thickness of 2 mm, a length of 10 cm, and a width of 10 cm at a tangential velocity of 1.4 cm / s. Heat treatment at 45°C for 8 hours to prepare a fire-resistant,...

Embodiment 2

[0043] 1) Preparation of gel pulp pre-polymerization solution: Add 4.5 g of methacrylamide and 0.3 g of polystyrene into deionized water in sequence at 25° C. to prepare a solution with a mass concentration of 13%, and mix and stir for 45 minutes; After obtaining a uniform and transparent polymer solution, add 0.25g hectorite, N,N'-methylenebisacrylamide and 0.045g ammonium persulfate to the system, adjust the temperature to 10°C, and add 0.1g crystal Violet, 0.05g rosemary essential oil and 0.1g glass fiber, make the system slowly polymerize; when the solution reaches a homogeneous state again, degas the reaction system for 20min; Accelerate the polymerization of the system, mix and stir for 8 minutes, and prepare the gel pulp prepolymerization liquid.

[0044] 2) Forming of gel paper: inject the gel pulp pre-polymerized solution prepared in step 1) into a molding mold with a thickness of 1 mm, a length of 25 cm, and a width of 20 cm at a tangential velocity of 1.1 cm / s. Hea...

Embodiment 3

[0047] 1) Preparation of gel pulp pre-polymerization solution: Add 2.4g N-isopropylacrylamide and 0.3g sodium alginate to deionized water in turn at 30°C to prepare a solution with a mass concentration of 12%, and mix and stir for 40min ; After obtaining a uniform and transparent polymer solution, add 0.2g hectorite, 0.1g epichlorohydrin, 0.005g calcium hydrogen sulfate and 0.072g potassium persulfate to the system, adjust the temperature to 5°C, and add 0.1 g amaranth, 0.08g rosemary essential oil and 0.1g calcium sulfate, make the system polymerize slowly; when the solution reaches a homogeneous state again, degas the reaction system for 30min; Amines were used to accelerate the polymerization of the system, and the mixture was mixed and stirred for 15 minutes to obtain a gel pulp prepolymer liquid.

[0048] 2) Forming of gel paper: inject the gel pulp pre-polymerization solution prepared in step 1) into a molding mold with a thickness of 0.5 mm, a length of 20 cm, and a wid...

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Abstract

The invention relates to a fireproof, moisture-resistant and high-tenacity gel paper and a method for preparing the gel paper. Raw materials of the gel paper comprise, by mass, 9-15% of monomers with double bonds, 1-3% of linear polymers, composite cross-linking agents accounting for 5-20% of the monomers with the double bonds, 0-1% of additives, 1-5%o of antibacterial substances and 0-2% of reinforcing substances. M1 reacts with M2 in a water solution under the action of the composite cross-linking agents, forming is carried out through molds and heat treatments are carried out to prepare the fireproof, moisture-resistant and high-tenacity gel paper. The gel paper prepared according to the method has high strength and tenacity and good high temperature resisting performance, fire resisting performance and moisture resisting performance, is good in restorability, and can meet writing and preserving requirements under conditions like high temperatures and different humidity. The fireproof, moisture-resistant and high-tenacity gel paper and the method for preparing the gel paper are suitable for fields like packaging, paper making and printing.

Description

technical field [0001] The invention relates to the fields of polymer material packaging, papermaking, printing, etc., and specifically relates to a fire-resistant, moisture-resistant, high-toughness gel paper and a preparation method thereof. Background technique [0002] Paper is the accumulation of long-term experience and wisdom of the working people of the Han nationality. It is a sheet-like fiber product used for writing, printing, painting or packaging. In ancient times, ancestors mainly relied on knotting ropes to keep track of events, and then gradually invented oracle bone inscriptions, and began to use oracle bones as writing materials. Later, bamboo chips, wood chips, and silk were found and utilized as writing materials. But because silk is too expensive, bamboo chips are too heavy, so just led to the generation of paper. According to textual research, the production of paper began in the Western Han Dynasty in China, and paper was widely circulated and used b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F257/02C08F220/56C08F220/54C08L51/02C08L51/00
Inventor 张青松张念一陈冰洁高文军王正陈莉
Owner TIANJIN POLYTECHNIC UNIV
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