Degradable waterproof paper with water vapor barrier property improved by chitosan bentonite compound

A technology of water vapor barrier and bentonite, applied in the field of papermaking, can solve problems such as difficult biodegradation and environmental hazards, and achieve the effects of increasing penetration resistance, improving compressive capacity, and improving strength

A technology of water vapor barrier and bentonite, applied in the field of papermaking, can solve problems such as difficult biodegradation and environmental hazards, and achieve the effects of increasing penetration resistance, improving compressive capacity, and improving strength

CN106801362AInactive Publication Date: 2017-06-06李宗飞
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Embodiment Construction

[0014] A degradable waterproof paper with chitosan-bentonite compound to improve water vapor barrier properties, prepared from the following raw materials in parts by weight (kg): masson pine pulp 38, hardwood pulp 60, PAE resin 1.5, polydiallyl Dimethyl ammonium chloride 1.5, alkyl ketene dimer 0.2, appropriate amount of distilled water, konjac glucomannan 1.8, beeswax 4, whey protein concentrate 4.2, glycerin 0.1, Tween 800.08, sodium montmorillonite 6 , chitosan 8, a proper amount of acetic acid solution with a concentration of 1wt%, cetyltrimethylammonium chloride 1.5, mica powder 4.

[0015] Described a kind of degradable waterproof paper that chitosan bentonite compound improves water vapor barrier property is made by following specific steps:

[0016] (1) Mix hardwood pulp and masson pine pulp, add them to the beater, and then add PAE resin, polydiallyl dimethyl ammonium chloride, alkyl ketene dimer and appropriate amount of distilled water for beating to control the pu...

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Abstract

The invention discloses degradable waterproof paper with water vapor barrier property improved by a chitosan bentonite compound. The chitosan bentonite compound is prepared by compounding an acetic acid suspension liquid which is obtained by organically modifying bentonite through hexadecyl trimethyl ammonium chloride with a chitosan suspension liquid, so that the penetrating path of oxygen and water vapor in a polymer can be prolonged, and the penetrating resistance is increased; the compound which is added to prepare paper can be uniformly dispersed in pulp, so that the anti-pressure ability, toughness and gas-liquid barrier property of the paper can be improved. The waterproof paper disclosed by the invention is scientific and reasonable in component; by adopting a food grade component, the degradable waterproof paper can be used in food packages, the penetrating rate of water can be reduced, foods can be kept fresh, and moreover, the components are environmental-friendly materials which can be fully degraded, and the product is robust and durable and is excellent in waterproof performance.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a degradable waterproof paper in which a chitosan-bentonite compound improves water vapor barrier properties. Background technique [0002] Paper fibers are highly hydrophilic. Generally, after untreated paper is soaked in water, most of the fiber strength will be lost, or even broken directly. In order to meet the needs of people's life and the development of modern industrial technology, the application field of paper is increasing. Waterproof paper is widely used in product packaging, food packaging and other fields. With the increasing awareness of environmental protection, people's demand for environmentally friendly and degradable waterproof paper is becoming stronger and stronger. [0003] In the article "Synthesis of high-efficiency and low-cost wet strength agent and its application in waterproof base paper", the synthesis process of high-efficiency and low-cost pol...

Claims

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Application Information

Patent Timeline
06 Jun 2017
Publication
CN106801362A
IPC
D21H15/10; D21H17/69; D21H17/55; D21H17/17; D21H17/24; D21H21/20; D21H19/12; D21H21/16; D21H21/18; C01B33/40
CPC
C01B33/40; D21H15/10; D21H17/17; D21H17/24; D21H17/55; D21H17/69; D21H17/74; D21H19/12
Inventors
李宗飞