Flexible Hose Composition Using Olive Kernel Filler
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Solution Overview
Problem
Conventional hose lines for watering gardens and green areas, made from PVC or rubber with calcium carbonate fillers, face challenges such as high material density, handling difficulties, ecological harm, and tool wear during production due to the abrasive nature of calcium carbonate.
Innovation Solution
Incorporating fruit core and peel powder, particularly olive stone powder, as a filler in the base and outer layers to reduce density, improve handling, and minimize tool wear, while using bio-based PVC and bio-based plasticizers like soybean oil derivatives for enhanced sustainability and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If calcium carbonate filler is used in the base layer and outer layer, then the material density increases, but the handling becomes more difficult and the hose line becomes heavier
Solution Approach 1:
The patent changes the filler material from calcium carbonate (inorganic, high density) to fruit stone and shell powder (organic, low density). This parameter change in filler composition directly reduces material density while improving handling characteristics, as the organic powder particles are lighter and less dense than conventional mineral fillers.
Solution Approach 2:
The patent uses fruit stone and shell powder, which are waste by-products from the food industry, as a filler material. This approach replaces expensive or environmentally harmful materials (calcium carbonate from open-cast mines) with inexpensive, readily available organic waste materials, reducing both cost and environmental impact while achieving the desired density reduction.
2Strength
If calcium carbonate filler is used, then the material properties of PVC are reduced and tool wear increases due to abrasiveness
Solution Approach 1:
The patent replaces calcium carbonate filler with fruit stone and shell powder, which are softer and less abrasive materials. This substitution significantly reduces wear on extrusion tools and manufacturing equipment, thereby improving ease of manufacture and reducing tool replacement costs, while maintaining or even enhancing the material properties of the PVC matrix.
Solution Approach 2:
The patent changes the filler material parameters from hard, abrasive calcium carbonate to softer, less abrasive organic fruit stone and shell powder. This parameter change in filler hardness and abrasiveness directly reduces tool wear during extrusion while preserving the mechanical properties of the base layer and outer layer materials.
3Object-affected harmful factors
If calcium carbonate is used as filler, then the ecological safety is compromised due to open-cast mining, but fruit stone and shell powder provide sustainable alternative
Solution Approach 1:
The patent utilizes fruit stone and shell powder, which are waste by-products from the food industry, as a filler material. This approach replaces calcium carbonate that requires environmentally damaging open-cast mining with inexpensive, readily available organic waste materials, thereby eliminating the harmful ecological impact of mining operations while achieving the desired density reduction.
Solution Approach 2:
The patent converts what would normally be waste materials (fruit stones and shells from food processing) into beneficial filler material for hose line production. This transforms an environmental problem (waste disposal) into a solution that reduces ecological harm from mining operations and reduces the overall density of the hose line material.
Data Source
Figure 1~2
AI summary
The invention relates to a flexible hose, particularly for irrigating gardens, green spaces, and the like, comprising a polymeric, in particular PVC-containing, support layer (1), a reinforcing layer (2) surrounding the support layer (1), and optionally an outer layer (5) of polymeric material surrounding the reinforcing layer (2). According to the invention, the support layer (1) and/or the outer layer (5) contains as a filler a powder (6) made from fruit kernel and/or shell material, in particular olive kernel powder.