Thermally Bonded Textile-Polyolefin Flake Insulation
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Solution Overview
Problem
The production of thermal insulation materials poses challenges such as high carbon footprint due to energy-intensive processes, waste management issues from textiles and plastics, and inefficiencies in recycling these materials.
Innovation Solution
A spatially structured insulation material composed of two-dimensional flakes of textile materials and polyolefin plastics, thermally bonded to create a homogeneous, porous structure with reduced energy consumption during production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If conventional thermal insulation materials are produced using high-temperature processes (e.g., mineral wool at 1600°C), then insulation performance is achieved, but carbon footprint and energy consumption increase significantly
Solution Approach 1:
The patent changes the temperature parameter from conventional high-temperature processes (1600°C for mineral wool) to low-temperature processing (below 250°C). This is achieved by using thermoplastic polymers that melt and bond at low temperatures, creating an insulating material that maintains effective insulation performance while dramatically reducing energy consumption and carbon footprint.
Solution Approach 2:
The patent creates a composite material combining thermoplastic polymers with natural fibers (wood fiber, hemp, flax, or cotton). This composite structure allows the material to achieve insulation performance comparable to conventional materials while using low-temperature processing. The thermoplastic provides binding and structural integrity, while the natural fibers provide insulation, and together they enable effective insulation at reduced temperatures.
2Loss of substance
If textile materials and plastics are mixed in conventional recycling processes, then waste utilization improves, but separation and processing efficiency deteriorate due to material incompatibility
Solution Approach 1:
The patent merges previously incompatible materials (textiles and plastics) into a unified composite structure. The thermoplastic polymer acts as a binding matrix that incorporates natural fibers, creating a homogeneous mixture where both material types work together synergistically. This merging approach transforms waste streams that are difficult to separate and process into a cohesive material that is easy to manufacture and process at low temperatures.
3Strength
If thermoplastic content is increased to improve binding and structural properties, then material strength improves, but insulation performance deteriorates due to reduced porosity
Solution Approach 1:
The patent applies local quality by using the thermoplastic polymer specifically as a binding agent at the interfaces between natural fiber particles, rather than as a bulk filling material. The thermoplastic content (5-50% by weight) is sufficient to provide structural integrity and binding strength while leaving the majority of the material volume as porous natural fiber structure, thereby maintaining insulation performance while achieving adequate strength.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The material achieves effective thermal and acoustic insulation while reducing the carbon footprint of production, enabling the recycling of textiles and plastics, and improving waste management by utilizing lower energy processing temperatures.
Implementation Method 1
The surface of the mat is then subjected to thermal treatment to melt the thermoplastic component on the surface, forming a coating
Implementation Method 2
These hollow spaces impede heat conduction, forming the basis of the insulating properties of these materials
Data Source
Figure 1~2
AI summary
The subject of the application is an insulation material with a spatial structure formed from component materials containing a first fraction (α) and a second fraction (β), where the first fraction (α) consists of textile materials and the second fraction (β) consists of plastics selected from the group of polyolefins, characterised in that the materials of the first fraction (α) and the second fraction (β) take the form of two-dimensional flakes with similar bulk densities below 150 kg/m3, wherein the material of the first fraction (α) constitutes between 60% and 80% by weight, and the material of the second fraction (β) constitutes between 20% and 40% by weight, and the materials of both fractions are thermally bonded after being dry-mixed together. The subject of the application is also a method of manufacturing the insulation material.