Plant Fiber Starch Tableware Composition for Low-Cost Biodegradation
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Solution Overview
Problem
Current degradable tableware and packaging materials face issues such as high costs, environmental unfriendliness, poor degradation rates, and health risks due to toxic substances, and existing solutions like biodegradable plastics are costly and difficult to promote widely.
Innovation Solution
A method involving the recycling and reuse of plant fibrous waste resources to create a fully biodegradable tableware using a combination of plant fibers, starch, and composite colloids, with antibacterial properties, achieved through a process involving plant cellulose material processing, konjac gum treatment, and foam molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If biodegradable plastic products are used, then degradation performance is improved, but production cost increases
Solution Approach 1:
The patent changes the material composition parameters by using plant fiber waste (50-90 wt%) combined with starch (10-30 wt%) and bio-degrading enzymes, replacing expensive biodegradable plastics like PLA and PBAT. This parameter change achieves full biodegradability while reducing production cost to below 20 yuan/kg
Solution Approach 2:
The patent uses low-cost plant fiber waste materials (straw, chaff, bagasse) that are abundant and inexpensive, combined with starch binders, to create disposable tableware that is fully biodegradable. This approach replaces expensive biodegradable plastics with cheap natural materials, achieving both cost reduction and environmental friendliness
2Duration of action of stationary object
If degradable starch products are used, then degradation performance is improved, but cost increases and antibacterial property deteriorates
Solution Approach 1:
The patent creates a composite material system combining plant fiber waste (providing structure and cost advantage), starch (providing binding and biodegradability), and bio-degrading enzymes (providing antibacterial properties and accelerating degradation). This composite approach achieves full biodegradability, antibacterial performance, and low cost simultaneously
Solution Approach 2:
The patent incorporates bio-degrading enzymes that enable the material to self-degrade and self-protect against bacterial contamination. The enzymes naturally present in the plant fiber waste and added starch components provide antibacterial properties without requiring additional expensive antimicrobial additives
3Quantity of substance
If plant fiber waste is discharged without treatment, then production cost is reduced, but environmental pollution increases
Solution Approach 1:
The patent converts harmful plant fiber waste (straw, chaff, bagasse) that would otherwise cause environmental pollution into beneficial resources for manufacturing biodegradable tableware. The waste materials are processed through cleaning, drying, pulverization, and extrusion to create valuable eco-friendly products, turning an environmental problem into an economic and environmental solution
4Ease of manufacture
If conventional packaging materials are used, then cost is reduced and ease of manufacture is improved, but degradation performance deteriorates
Solution Approach 1:
The patent changes the material composition from conventional non-degradable plastics to a bio-based composite of plant fiber waste (50-90 wt%) and starch (10-30 wt%), maintaining cost-effectiveness while achieving full biodegradability. The processing parameters are optimized through extrusion and foam molding to ensure ease of manufacture
Solution Approach 2:
The patent uses abundant, inexpensive plant fiber waste materials combined with starch to create disposable tableware that is both economical to produce and fully biodegradable. This approach replaces conventional plastics with cheap natural materials that maintain manufacturing simplicity while adding environmental benefits
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 resulting tableware is safe, environmentally friendly, has strong antibacterial performance, good degradation properties, and is cost-effective, meeting national standards for plastic disposable tableware with improved mechanical strength and degradability.
Implementation Method 1
adding a starch binder and a bio-degrading enzyme to the solid residue
Implementation Method 2
adding water into the pulverized konjac gum followed by stirring to carry out a swelling treatment
Implementation Method 3
subjecting the mixture to foam molding in a forming mold to obtain tableware
Data Source
AI summary
Disclosed herein is a method for preparing a low-cost fully-biodegradable plant fiber starch tableware. A plant cellulose material containing dregs of Scutellaria baicalensis is modified to obtain a modified plant fiber starch blank. Konjac gum is subjected to pulverization and ultrafine pulverization to obtain a colloidal binder combined with a deacetylated konjac gum. The colloidal binder is mixed with the modified plant fiber starch blank to obtain a mixture. The mixture is subjected to foam molding in a forming mold to obtain the low-cost fully-biodegradable plant fiber starch tableware.