Novel biodegradable synthetic paper

A biodegradable and synthetic paper technology, applied in the field of polymer materials, to achieve the effect of not easy to be embrittled and broken, good ductility and toughness, and avoid environmental pollution

Active Publication Date: 2014-09-24
江西冠德新材科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The base materials of synthetic paper widely used at present are polymer plastics, especially polyolefin resins, such as polyvinyl chloride and polypropylene, which are derived from petroleum bases, and the source is non-renewable. Moreover, since these base materials are non-biological Degradable materials are often discarded after being used once during use, and cannot be recycled, which will still cause some pollution to the environment. Therefore, it is necessary to provide more environmentally friendly synthetic paper. In addition, traditional polyolefin materials are easy to be brittle. cracking, poor ductility and toughness, this kind of synthetic paper is prone to breakage at the bend when it is bent, which seriously affects its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 The preparation of potato starch-chitosan hydrochloride-acrylamide-allylamine hydrochloride resin

[0046] Weigh 3kg of chitosan, add 5L of hydrochloric acid with a concentration of 0.3mol / L, stir until completely dissolved, add 500g of dicyandiamide, stir at 100°C for 3h until complete reaction, and perform vacuum filtration after cooling. The filtrate is precipitated with absolute ethanol, filtered with suction, and the filter cake is washed with absolute ethanol, followed by vacuum drying to obtain chitosan hydrochloride, 500g of potato starch and distilled water are mixed together and carried out at 80°C. Cool down to room temperature after gelatinization for 1 hour, then add 2kg of chitosan hydrochloride prepared in the first step, 500g of allylamine hydrochloride and acrylamide aqueous solution and mix together, the usage of acrylamide is 4kg, add initiator 60g of ammonium persulfate and 25g of glycerin were stirred evenly and then placed in an oven a...

Embodiment 2

[0047] The preparation of embodiment 2 acrylic acid-chitooligosaccharide

[0048] 1kg chitosan oligosaccharide, 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride 600g, N-hydroxysuccinimide 300g were dissolved in 3L of dilute hydrochloric acid with a pH value of 4.7, After stirring until completely dissolved, 500 g of acrylic acid was added, and the reaction was carried out under magnetic stirring at room temperature for 72 h. After the reaction was completed, the reaction product was slowly poured into 150 mL of absolute ethanol, stirred to fully precipitate the chitosan derivative, vacuum filtered, and the filter cake was taken to dry naturally to obtain the product. The infrared spectrum of the product was as follows: figure 2 shown.

Embodiment 3

[0049] Example 3 Preparation of mercapto lignin

[0050] Add 1kg of mercaptoacetic acid, 0.35kg of acetic anhydride, 1L of 36% acetic acid and 300g of concentrated sulfuric acid into the reaction vessel in sequence, stir well, then add 2kg of lignin dry sample, stir, mix evenly, and then put it in an oven at 40°C for 2 days. Take out, suction filter, after fully washing with distilled water, dry under reduced pressure at normal temperature, obtain product, the infrared spectrogram of product is as follows: image 3 shown.

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Abstract

The invention provides novel biodegradable synthetic paper which is characterized in that raw materials comprise degradable chitosan hydrochloride-acrylamide-allylamine hydrochloride macromolecular resin, inorganic fillers, a folding modifier, an antistatic agent, a mixed accelerant and a lubricant. The novel biodegradable synthetic paper provided by the invention can be biodegraded to avoid environmental pollution. Meanwhile, the synthetic paper is not easy to embrittle and crack, good in ductility and toughness and folding and tear-resistant.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a biodegradable synthetic paper. Background technique [0002] The paper industry is an important industry related to the development of the national economy. The use of paper involves all aspects of society and people's lives. With the rapid development of social economy, the demand and consumption of global paper products continue to increase. [0003] The destruction and pollution of the environment by the traditional papermaking industry has always been recognized, and it is an industry that consumes a lot of wood and energy. The raw materials of ordinary paper are straw pulp, wood pulp, bamboo pulp, hemp fiber, etc., which are plant fibers. It is speculated that for ordinary wood pulp paper, about 4 tons of wood are needed to produce 1 ton of paper, which is equivalent to cutting down 23 large trees. In today's world, especially in my country, due to the dwindl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/02C08K3/26C08K3/36C08K3/34C08K3/22C08F251/00C08B37/08
Inventor 白春生
Owner 江西冠德新材科技股份有限公司
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