Biomass Composite Foaming Method for Heat Resistance
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Solution Overview
Problem
Biomass materials lack the heat resistance and melt strength necessary for producing foam products, limiting their application due to inferior properties compared to petroleum-based plastics, which are environmentally unfriendly.
Innovation Solution
A biomass composite composition comprising a polyester alloy with 40-50% biodegradable polyester and 50-60% petrochemical plastic, combined with reinforcing agents, foaming agents, compatibilizers, lubricants, and impact modifiers, processed through a specific foaming method to enhance heat resistance and mechanical strength, enabling the production of foamed products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If biomass materials are used to replace petroleum-based plastic, then environmental friendliness is improved, but heat resistance and melt strength deteriorate
Solution Approach 1:
The invention uses a composite material system consisting of biodegradable polyester (40-50 wt%), petrochemical plastic (50-60 wt%), and various additives. This composite structure allows the biomass-based polyester to provide environmental benefits while the petrochemical plastic component maintains the necessary heat resistance and melt strength for foaming processes.
2Object-affected harmful factors
If biomass materials are used to replace petroleum-based plastic, then environmental friendliness is improved, but mechanical strength deteriorates
Solution Approach 1:
The composite formulation combines biodegradable polyester with petrochemical plastic and reinforcing agents to achieve mechanical strength suitable for foam products. The synergistic effect of the composite components compensates for the inherent weakness of pure biomass materials while maintaining their environmental benefits.
Solution Approach 2:
The invention introduces crosslinking agents that create localized crosslinked structures within the biomass composite. These crosslinked regions provide enhanced mechanical strength and structural integrity at critical points, allowing the overall material to maintain both environmental friendliness and adequate mechanical performance.
3Device complexity
If traditional foaming method is used with biomass materials, then foaming process simplicity is maintained, but foaming success deteriorates due to poor heat resistance
Solution Approach 1:
The invention modifies the thermal and rheological parameters of the biomass composite through the addition of petrochemical plastic and crosslinking agents. These parameter changes enable the material to withstand the temperature and pressure conditions required for successful foaming, while the foaming process itself remains relatively simple and continuous.
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 biomass composite composition achieves improved heat resistance and specific mechanical strength, making it suitable for manufacturing foam products with good thermal stability and partial biodegradability, suitable for continuous foam extrusion processes.
Implementation Method 1
a foaming agent... 0.1 to 5 phr of foaming agent
Implementation Method 2
biomass composite composition... suitable for the manufacture of foam product
Implementation Method 3
chemical blowing agent... foaming agent
Data Source
AI summary
Disclosed herein are a biomass composite composition and a foaming method thereof. The biomass composite composition includes (a) polyester alloy containing biodegradable polyester and petrochemical plastic, (b) reinforcing agent, (c) foaming agent, (d) compatibilizer, (e) lubricant, and (f) impact modifier. The biomass composite composition of the present invention is biodegradable and of heat resistance and melt strength suitable for manufacture of foam products.