A kind of self-adhesive fully degradable organic cover pad and production method

Abstract

The invention discloses a self-adhesive fully degradable organic covering mat and a manufacturing method. The manufacturing method includes the following steps: S1: obtaining crop straws that can be produced on a large scale, and using biomechanical pulp or chemical mechanical pulp to fibrillate the crop straws Separation treatment to form slurry; S2: The slurry described in step S1 is heat-set in a high temperature drying environment by using pulp molding technology to form a high bulk and regular preliminary cover pad; S3: The slurry described in step S2 is A mortise and tenon structure is set at the edge position of the preliminary cover pad to form the organic cover pad; the organic cover pad has a regular geometric shape as a whole, and the edge is provided with a mortise and tenon structure, and the organic cover pad passes through the mortise and tenon structure. connect. The invention ensures stable and controllable product quality, realizes precise modeling of the organic covering pad, ensures a large specific surface area of ​​the organic covering pad, improves the performance of water retention, dust absorption, dust suppression and filtration, and improves the degradation speed.

Description

technical field [0001] The invention belongs to the field of bare soil covering, and in particular relates to a self-gluing and fully degradable organic covering mat and a manufacturing method. Background technique [0002] Organic mulch, due to its porous, renewable, and degradable raw materials, has been widely used in the field of urban green space bare soil coverage, especially in the field of garden bare soil coverage. Dust suppression and other functions achieve bare soil coverage, and on the other hand, use its color and texture to achieve garden modeling and form a landscape effect. Throughout the current various types of organic coverings, including non-formed organic coverings and bonded and formed organic covering pads, they all have the following defects: [0003] (1) The limitation of mulch raw materials is difficult to scale production, resulting in quality fluctuations. Traditional organic mulch production mostly uses biological particles such as leaves, bark...

AI Technical Summary

Problems solved by technology

[0003] (1) The limitation of mulch raw materials makes it difficult to scale production, resulting in quality fluctuations. Traditional organic mulch production mostly uses biological particles such as leaves, bark, branches, wood processing residues, and crop straws as raw materials, and the stock volume per unit area is limited. , the distribution of raw materials is scattered, the quality of raw materials fluctuates greatly, and it is difficult to realize intensive supply, which restricts the large-scale production of organic mulch, making it difficult to achieve precise control of product quality

[0004] (2) The degradation rate of the mulch is uncontrollable. Although the production of some organic mulches has undergone pre-biodegradation treatment in the early stage, it is limited by the variable and uncontrollable dimensional accuracy of the raw materials and the variety of raw materials, resulting in the degradation rate of the product. Uncontrollable under the same environmental conditions

[0005] (3) The covering is difficult to shape accurately, and is susceptible to damage and loss caused by wind and rain erosion, resulting in secondary pollution and modeling failure

[0006] (4) Covering pads need to be added with adhesive to affect the degradation effect. The current organic covering pads mostly use various biological particles as raw materials. After preliminary biodegradation, synthetic adhesives are added to form them. The diameter of the particles is mostly about 2-20mm. The specific surface area is large, which affects the biodegradation rate of environmental microorganisms during use, and the degradation rate of the general external synthetic adhesive lags behind the biological particles, or even cannot be completely degraded, which affects the degradation effect of the covering mat.

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