阅读说明：本技术 一种面向水土保持的地布及其制备方法 (Ground cloth for water and soil conservation and preparation method thereof ) 是由 李俊 韩国志 叶咏梅 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种面向水土保持的地布及其制备方法,属于材料技术领域。该方法包括以下步骤：1)按照以下重量份数的组分：硅酸钙4份,碳酸钙晶须2～4份,硫酸钡4～6份,聚乙烯醇3～6份,聚丙烯粉体80～85份,转光剂5～8份,将硅酸钙、碳酸钙晶须与硫酸钡研磨成细粉状,热水分散,然后加入聚乙烯醇,搅拌,最后加入聚丙烯粉体与转光剂,经高温熔融,加工制成颗粒状的色母粒；2)将高密度聚乙烯与色母粒混合溶解在溶剂中形成共纺丝原液,脱泡过滤后,采用常规的湿法纺丝方法进行湿法纺丝。本发明所制备的地布的成本低,使用寿命长；能够减少覆盖地区的水土流失；且能够促进植物生长,具有广泛的应用前景。(The invention discloses a ground fabric for water and soil conservation and a preparation method thereof, belonging to the technical field of materials. The method comprises the following steps: 1) the composition comprises the following components in parts by weight: 4 parts of calcium silicate, 2-4 parts of calcium carbonate whiskers, 4-6 parts of barium sulfate, 3-6 parts of polyvinyl alcohol, 80-85 parts of polypropylene powder and 5-8 parts of a light conversion agent, grinding the calcium silicate, the calcium carbonate whiskers and the barium sulfate into fine powder, dispersing the fine powder in hot water, adding the polyvinyl alcohol, stirring, adding the polypropylene powder and the light conversion agent, and carrying out high-temperature melting to prepare granular color master batches; 2) mixing and dissolving high-density polyethylene and color master batch in a solvent to form a co-spinning stock solution, defoaming and filtering, and then carrying out wet spinning by adopting a conventional wet spinning method. The ground cloth prepared by the invention has low cost and long service life; the water and soil loss of a covered area can be reduced; and can promote the growth of plants, and has wide application prospect.)

1. A preparation method of a ground fabric for water and soil conservation is characterized by comprising the following steps:

1) the composition comprises the following components in parts by weight: 4 parts of calcium silicate, 2-4 parts of calcium carbonate whiskers, 4-6 parts of barium sulfate, 3-6 parts of polyvinyl alcohol, 80-85 parts of polypropylene powder and 5-8 parts of a light conversion agent, grinding the calcium silicate, the calcium carbonate whiskers and the barium sulfate into fine powder, dispersing the fine powder in hot water, adding the polyvinyl alcohol, stirring for 20-30 min, finally adding the polypropylene powder and the light conversion agent, and carrying out high-temperature melting to prepare granular color master batches;

2) preparing a blended spinning solution: mixing and dissolving high-density polyethylene and color master batch in a solvent to form a co-spinning stock solution, wherein the mass ratio of the high-density polyethylene to the color master batch is 6-10: 1; and the solvent is more than one of N, N-dimethylacetamide, N-dimethylformamide and dimethyl sulfoxide, the co-spinning solution is kept stand and defoamed for 10-20min, and after filtration, wet spinning is carried out by adopting a conventional wet spinning method to prepare the ground fabric for water and soil conservation.

2. The method for preparing an earth and water-oriented retaining ground fabric according to claim 1, wherein in the step 1), the fine powder particles have a size of 120-150 meshes; the solid-liquid ratio of the fine powder to the hot water is 1 g: 3-5 mL.

3. A method for preparing a soil and water-oriented mulch according to claim 1 wherein in step 1) the light conversion agent is one of a rare earth inorganic sulfide light conversion agent and an aluminate light conversion agent.

4. The method for preparing an earth and water-retaining-oriented ground fabric according to claim 1, wherein the melting temperature in step 1) is 200-300 ℃.

5. A soil and water retaining facing ground fabric prepared by the method of any one of claims 1 to 4.

Technical Field

The invention belongs to the technical field of materials, and particularly relates to a ground fabric for water and soil conservation and a preparation method thereof.

Background

The ground cloth is a widely used agricultural consumable, and can prevent weeds from being produced on the ground. The ground cloth can prevent sunlight from directly irradiating the ground, and meanwhile, the firm structure of the ground cloth is utilized to prevent weeds from penetrating through the ground cloth, so that the inhibition effect of the ground cloth on the weeds is ensured, meanwhile, the ground cloth is favorable for timely removing accumulated water on the ground, and the ground is kept clean. However, the existing ground fabric can cause damage to the vegetation on the surface layer, resulting in partial water and soil loss. Meanwhile, the problem of poor ultraviolet light scattering and aggravated water evaporation exists.

Disclosure of Invention

In view of the above problems in the prior art, the technical problem to be solved by the present invention is to provide a method for preparing a ground fabric for water and soil conservation, and another technical problem to be solved by the present invention is to provide a ground fabric for water and soil conservation prepared by the method.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a preparation method of a ground fabric for water and soil conservation comprises the following steps:

1) the composition comprises the following components in parts by weight: 4 parts of calcium silicate, 2-4 parts of calcium carbonate whiskers, 4-6 parts of barium sulfate, 3-6 parts of polyvinyl alcohol, 80-85 parts of polypropylene powder and 5-8 parts of a light conversion agent, grinding the calcium silicate, the calcium carbonate whiskers and the barium sulfate into fine powder, dispersing the fine powder in hot water, adding the polyvinyl alcohol, stirring for 20-30 min, finally adding the polypropylene powder and the light conversion agent, and carrying out high-temperature melting to prepare granular color master batches;

2) Preparing a blended spinning solution: mixing and dissolving high-density polyethylene and color master batch in a solvent to form a co-spinning stock solution, wherein the mass ratio of the high-density polyethylene to the color master batch is 6-10: 1; and the solvent is more than one of N, N-dimethylacetamide, N-dimethylformamide and dimethyl sulfoxide, the co-spinning solution is kept stand and defoamed for 10-20min, and after filtration, wet spinning is carried out by adopting a conventional wet spinning method to prepare the ground fabric for water and soil conservation.

Further, in the step 1), the size of the fine powder particles is 120-150 meshes; the solid-liquid ratio of the fine powder to the hot water is 1 g: 3-5 mL.

Further, the light conversion agent is one of a rare earth inorganic sulfide light conversion agent and an aluminate light conversion agent.

Further, in the step 1), the melting temperature is 200-300 ℃.

The ground fabric prepared by the method faces to water and soil conservation.

Has the advantages that: compared with the prior art, the invention has the advantages that:

1) the ground cloth prepared by the invention can reduce water and soil loss in a covered area;

2) the ground cloth prepared by the invention has long service life and low cost;

3) the ground fabric prepared by the method can promote the growth of plants and improve the yield and quality of crops.

Drawings

Fig. 1 is a picture of a color masterbatch prepared according to the present invention.

Detailed Description

The invention is further described with reference to specific examples. These examples are intended to illustrate the invention and are not intended to limit the scope of the invention.