Sugar Beet Pulp Extender for Lignocellulosic Adhesive Viscosity Control
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Solution Overview
Problem
The use of extenders and fillers in aldehyde resin adhesive systems can have undesirable effects on the chemical and physical properties, impeding their performance in manufacturing lignocellulosic products.
Innovation Solution
Incorporating sugar beet pulp as an improved extender and/or filler material in the adhesive system, which enhances water absorption, maintains moisture levels, and stabilizes viscosity, allowing for a reduced amount of adhesive system usage while maintaining bonding properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If extenders and fillers are added to reduce adhesive system cost, then manufacturing cost decreases, but chemical and physical properties deteriorate
Solution Approach 1:
The patent applies parameter changes by carefully controlling the pH level of the adhesive system (maintaining between 3.5 and 6.5) and adjusting the specific composition ratios of extenders and fillers. This allows the use of cost-reducing additives while preventing the chemical and physical property deterioration that would normally occur, thereby resolving the contradiction between manufacturing cost and adhesive system performance.
Solution Approach 2:
The patent employs composite materials by combining multiple extender and filler components (such as wheat flour, corn starch, and various fillers) in specific proportions within the adhesive system. This composite approach allows the system to maintain its binding properties and performance characteristics while incorporating cheaper materials, thus reducing manufacturing cost without sacrificing reliability.
2Productivity
If extenders and fillers are added to increase profitability, then cost efficiency improves, but binding action is adversely affected
Solution Approach 1:
The patent maintains binding action strength by controlling critical parameters including pH level (3.5-6.5), extender content (5-50% by weight), and filler content (5-50% by weight). These parameter controls ensure that cost-efficient extender and filler additions do not compromise the adhesive system's binding capability, resolving the contradiction between productivity and strength.
Solution Approach 2:
The patent applies local quality by assigning different functional roles to different components within the adhesive system. Extendors provide cost efficiency and viscosity modification, while fillers provide bulk and structural support. This functional differentiation allows each component to optimize its local contribution without adversely affecting the overall binding action, thereby achieving cost efficiency while maintaining strength.
3Ease of operation
If water is added to improve working properties, then ease of application increases, but adhesive system stability decreases
Solution Approach 1:
The patent controls water content as a critical parameter within specific limits to balance ease of application and stability. By maintaining water at appropriate levels and controlling pH (3.5-6.5), the adhesive system remains sufficiently fluid for easy application while preventing excessive water from compromising composition stability during storage and use, thus resolving the contradiction between ease of operation and stability.
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 use of sugar beet pulp improves the adhesive system's ability to absorb and retain water, maintains stable viscosity, and reduces the amount of adhesive needed, preventing dryout and ensuring effective bonding, resulting in cost savings and uniform quality lignocellulosic products.
Implementation Method 1
sugar beet pulp material, preferably in finely ground, dried form, can be utilized in the adhesive system of the present invention... The use of sugar beet material in the extender and/or filler material of the subject adhesive system will allow a lignocellulosic board panel manufacturer to overcome some of the undesirable effects... improves the adhesive system's ability to absorb and retain water
Implementation Method 2
consolidating or joining together lignocellulosic materials by the application of pressure and heat using an adhesive binder material
Data Source
AI summary
A process is provided for producing lignocellulosic board panels. The process comprises providing lignocellulosic material and an adhesive system. The adhesive system comprises (a) a base adhesive resin and (b) an extender and/or filler material comprising sugar beet material. The adhesive system (i) retains substantial moisture in the lignocellulosic material, and/or (ii) creates a relatively higher initial viscosity, and/or (iii) maintains a substantially stable viscosity thereof over time. The lignocellulosic material is combined with adhesive system. The combined lignocellulosic material and adhesive is then formed into the lignocellulosic board panels.