Vegetable Origin Binder for Bitumen Replacement
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Solution Overview
Problem
Conventional bitumen of petroleum origin used in leakproofing and road surfacing applications is non-renewable and has decreasing quality due to increasing demand, leading to unsatisfactory thermomechanical properties and excessive water uptake in membranes produced with alternative vegetable-based binders.
Innovation Solution
A binder of vegetable origin comprising 65-85% modified tall-oil pitch and 15-35% modified vegetable resin, which can replace petroleum-based bitumen in compositions for leakproofing, soundproofing, and asphalt applications, enhancing elasticity, adhesion, and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If bitumen of petroleum origin is replaced with vegetable-based binders, then sustainability is improved, but thermomechanical properties and water uptake performance deteriorate
Solution Approach 1:
The patent uses composite materials by combining modified tall-oil pitch (65-85%) with modified vegetable resin (15-35%). This composite binder integrates the advantages of both components: tall-oil pitch provides sustainability and water uptake resistance, while the modified vegetable resin enhances thermomechanical properties and elasticity, resolving the contradiction between sustainability and performance
Solution Approach 2:
The patent applies parameter changes by chemically modifying both the tall-oil pitch and vegetable resin through esterification reactions. The modified tall-oil pitch has reduced acidity and improved compatibility, while the modified vegetable resin has enhanced elasticity and adhesion. These parameter modifications enable the binder to achieve both sustainability and improved thermomechanical properties
2Object-affected harmful factors
If conventional vegetable-based binders are used, then sustainability is improved, but water uptake increases excessively
Solution Approach 1:
The patent reduces water uptake by changing the chemical parameters of the tall-oil pitch through esterification. The modification reduces the acidity and hydrophilicity of the pitch, transforming it from a water-absorbing material to a water-resistant binder while maintaining its renewable and sustainable characteristics
3Reliability
If petroleum-based bitumen is used, then thermomechanical properties are maintained, but environmental sustainability deteriorates
Solution Approach 1:
The patent changes the chemical composition and properties of renewable resources through modification processes. The esterification of tall-oil pitch and vegetable resin creates a binder with thermomechanical properties comparable to petroleum-based bitumen, while eliminating dependence on non-renewable fossil resources and improving environmental sustainability
Data Source
AI summary
Disclosed is a binder of vegetable origin based on modified tall-oil pitch, modified vegetable resin and optionally oil. Also disclosed are leakproofing membrane compositions, soundproofing membrane compositions, liquid sealing system compositions, asphalt mix coating compositions, asphalt coating compositions, primer compositions, varnish compositions, mastic compositions, adhesive compositions or binder emulsion compositions which comprise said binder. In addition, a method is disclosed for reducing the amount of bitumen of petroleum origin in said compositions.