阅读说明：本技术 一种环保植物基全生物可降解膜材 (Environment-friendly plant-based full-biodegradable film material ) 是由 潘东 于 2020-04-17 设计创作，主要内容包括：本发明涉及可降解塑料领域,具体涉及一种环保植物基全生物可降解膜材,该膜材由以下原料(按重量份数计)组成：水6-10份,成膜剂3-8份,卡拉胶2-7份,柔性剂1-5份,大叶海藻提取液2-8份,其中：成膜剂是琼脂或海藻酸钠,柔性剂是玉米须提取液或银耳提取液,具有传统塑料类使用特性,并不需要特定的条件即可达到完全生物降解目的,本发明的原料以天然植物基(其中成膜剂琼脂取材于石花菜提取液,卡拉胶取材于麒麟菜,大叶海藻提取液取材于大叶海藻)海洋中广泛存在,可持续发展,本发明提到的膜材抗拉伸强度高,柔韧性佳,成模性高。(The invention relates to the field of degradable plastics, in particular to an environment-friendly plant-based full-biodegradable film material which is prepared from the following raw materials in parts by weight: 6-10 parts of water, 3-8 parts of a film forming agent, 2-7 parts of carrageenan, 1-5 parts of a flexibilizer and 2-8 parts of a kelp extracting solution, wherein: the film forming agent is agar or sodium alginate, the flexibilizer is a corn stigma extracting solution or a tremella extracting solution, the film forming agent has the using characteristics of the traditional plastics, the complete biodegradation can be achieved without specific conditions, the raw materials of the invention are widely available in the ocean by natural plant bases (wherein the film forming agent agar is obtained from agar extracting solution, the carrageenan is obtained from eucheuma, and the kelp extracting solution is obtained from kelp), the sustainable development can be realized, and the film material provided by the invention has high tensile strength, good flexibility and high moldability.)

1. An environmental protection plant base full biodegradable film material which is characterized in that: the membrane material comprises the following raw materials (by weight portion): 6-10 parts of water, 3-8 parts of a film forming agent, 2-7 parts of carrageenan, 1-5 parts of a flexibilizer and 2-8 parts of a kelp extracting solution, wherein: the film forming agent is agar or sodium alginate, and the flexibilizer is stigma Maydis extract or Tremella extract.

2. The method for preparing the environment-friendly plant-based fully biodegradable film material according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:

(1) weighing the raw materials according to the weight part ratio, adding water, a film forming agent and carrageenan into a container, mixing, and heating to liquefy;

(2) adding a flexibilizer and the seaweed extract into the mixed solution, stirring and mixing, keeping the solution at a constant temperature of 65 ℃, and keeping the mixed solution in a liquefied state;

(3) vertically dipping an aluminum mould in the mixed solution, and adjusting the dipping times according to the required film thickness;

(4) taking the aluminum mold out of the mixed liquid, and transferring the aluminum mold to a constant-temperature drying box for drying treatment after the mixed liquid on the surface of the aluminum mold is solidified;

(5) and forming a film on the surface of the aluminum mould after drying, blowing down the film on the surface of the aluminum mould by using a compressed air pump, and then sequentially finishing and cutting.

3. The method of claim 2, wherein: the liquefaction temperature of the mixed liquid in the step (1) is set to be constant at 90-100 ℃.

4. The method of claim 2, wherein: in the step (4), the drying oven is set to be stable at 40 ℃ and the drying time is 4-6 minutes.

Technical Field

The invention relates to the field of degradable plastics, in particular to an environment-friendly plant-based fully biodegradable film material.

Background

The present invention relates to a biodegradable plastic, which is characterized by that in the course of production a certain quantity of additives (such as starch, modified starch or other cellulose, photosensitizer and biological degradation agent) are added so as to make it be easily degraded in natural environment, and its degradation requirements are satisfied, and its two basic conditions are 50% -60% of humidity and 50-70 deg.C, under the condition the microbe can be used for progressively decomposing P L A for several months.

Disclosure of Invention

First, technical problem to be solved

The invention aims to provide an environment-friendly plant-based fully biodegradable film material, which can solve the problems that the existing biodegradable material can be degraded only by specific conditions and the raw material is deficient.

Second, technical scheme

The invention is realized by the following technical scheme: the invention provides an environment-friendly plant-based fully biodegradable film material, which is prepared from the following raw materials in parts by weight: 6-10 parts of water, 3-8 parts of a film forming agent, 2-7 parts of carrageenan, 1-5 parts of a flexibilizer and 2-8 parts of a kelp extracting solution, wherein: the film forming agent is agar or sodium alginate, and the flexibilizer is stigma Maydis extract or Tremella extract.

The preparation method of the environment-friendly plant-based fully biodegradable film material comprises the following steps:

1. weighing the raw materials according to the weight part ratio, adding water, a film forming agent and carrageenan into a container, mixing, and heating to liquefy;

2. adding the corn stigma extract and the kelp extract into the mixed solution, stirring and mixing, keeping the solution at a constant temperature of 65 ℃, and keeping the mixed solution in a liquefied state;

3. vertically dipping an aluminum mould in the mixed solution, and adjusting the dipping times according to the required film thickness;

4. taking the aluminum mold out of the mixed liquid, and transferring the aluminum mold to a constant-temperature drying box for drying treatment after the mixed liquid on the surface of the aluminum mold is solidified;

5. and forming a film on the surface of the aluminum mould after drying, blowing down the film on the surface of the aluminum mould by using a compressed air pump, and then sequentially finishing and cutting.

The liquefaction temperature of the mixed liquid in the step (1) is set to be constant at 90-100 ℃.

And (4) setting the drying stability of the drying oven to be 40 ℃ and setting the drying time to be 5 minutes.

Third, beneficial effect

Compared with the prior art, the invention has the following beneficial effects:

1. the environment-friendly plant-based fully biodegradable film material provided by the invention has the using characteristics of traditional plastics (films) and can achieve the purpose of complete biodegradation without specific conditions.

2. The raw materials of the invention are widely available in the sea by natural plant bases (wherein the film-forming agent agar is obtained from Eucheuma Gelatinosum extract, the carrageenan is obtained from Eucheuma Gelatinosum, and the seaweed extract is obtained from seaweed with large leaves), and can be developed sustainably.

3. The film material provided by the invention has the advantages of high tensile strength, good flexibility and high moldability.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.