Reflective floor coating based on biodegradable natural materials for passive floor cooling
A biodegradable coating of Kaolin, starch, and cellulose fibers addresses the lack of high Albedo and ecological safety in existing soil protection methods, effectively reducing temperature and evaporation while being environmentally friendly.
Patent Information
- Application Number
- DE202025001422
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2025-08-07
- Estimated Expiration
- 2035-05-31
AI Technical Summary
Existing soil erosion and evaporation reduction methods, such as mucotype materials and white plastic films, lack high Albedo values and ecological safety, and are not biodegradable, failing to provide effective and sustainable heat protection and water management for agricultural and horticultural surfaces.
A biodegradable coating composed of Kaolin, vegetable starch, and cellulose fibers, optionally with additives, that reflects solar radiation, reduces surface temperature, and manages water evaporation, featuring high Albedo and biocompatibility.
The coating significantly increases Albedo, lowers surface temperature, reduces evaporation, and maintains ecological safety by being biodegradable, with additive functionalities like water storage and compatibility with natural organisms.
Abstract
Description
Technical area
[0001] The invention relates to the field of environmental technology, in particular sustainable agriculture, horticulture and soil-protecting heat protection measures in outdoor areas. State of the art
[0002] State-of-the-art mulch materials (e.g., bark mulch, weed control fabric, lime-based brighteners) exist to reduce soil erosion and evaporation. However, these usually have low albedo values or are not biodegradable. Other products, such as white plastic films, are ecologically questionable and soil-incompatible. The need for ecologically sustainable, reflective, and cooling soil protection has so far been inadequately met. Description of the invention
[0003] The invention relates to a biodegradable coating for application to soils, mulched areas or planting strips, which: • the solar radiation is strongly reflected (high albedo), • reduces the surface temperature, • reduces water evaporation, • is biocompatible and degradable, • enables reactive storage and release of water when it rains.
[0004] The coating consists of a mixture of: • Kaolin (white clay mineral with high albedo), • vegetable starch (as a binding agent), • Cellulose fibers (for structure and adhesion), • a vegetable oil (e.g. rapeseed oil for water repellency and fixation).
[0005] Additives such as plant-based surfactants, microorganisms or fertilizers can be integrated.
[0006] The compound can be applied as a spray, paste, foam, or two-component product. The formulation can be adapted to the area, weather conditions, and soil type.
[0007] The solution is both UV-stable and soil-neutral (close to pH) and can be reactivated by watering or rain without being completely washed out. Advantages of the invention • Increase in the albedo value of the ground surface by up to 0.8 • Reduction of soil temperature by several degrees Celsius • Evaporation protection of up to 50% • Use of fully biodegradable components • No plastic, no microplastic formation • Restoration of effect by rain or spray water • Compatible with natural soil organisms Summary
[0008] The invention relates to a reflective, biodegradable floor coating. The floor coating is made of natural materials. The coating is applied as a spray, foam, or paste and serves to reduce soil temperature, mitigate water evaporation, and improve the albedo value of agricultural and horticultural areas. The product is biodegradable, environmentally friendly, and can be combined with other substances such as microorganisms or fertilizers.
Claims
[1] Floor coating for passive temperature regulation, characterized by that it comprises a mixture of finely dispersed kaolin, vegetable starch, cellulose fibers and a vegetable oil. [2] Floor coating according to claim 1, characterized by that it serves to reduce soil temperature, reduce surface evaporation and improve the microclimate on agricultural or horticultural land. [3] Floor coating according to one of the preceding claims, characterized by that it can be applied as a spray, foam or paste. [4] Floor coating according to one of the preceding claims, characterized by that the cellulose fibers are replaced by other plant stabilizers to enable an alternative composition. [5] Floor coating according to one of the preceding claims, characterized by that it is combined with microorganisms and / or water-soluble fertilizers. [6] Floor coating according to one of the preceding claims, characterized by that it is partially reactivated by precipitation and adheres again after drying. [7] Floor coating according to one of the preceding claims, characterized by that it is especially suitable for use on bark mulch or organic mulch materials. [8] Floor coating according to one of the preceding claims, characterized by that it is converted into a foaming consistency using biodegradable plant-based surfactants. [9] Floor coating according to one of the preceding claims, characterized by that it is a two-component system in which kaolin and the binder are stored separately and mixed before use. [10] Floor coating according to one of the preceding claims, characterized bythat all components used are biodegradable and do not leave any harmful residues for soil organisms or pets.