Silane Compound And Modified Hydrogenated Petroleum Resin for Asphalt Peeling
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Solution Overview
Problem
Existing asphalt peeling phenomena in pavements, especially with acid rocks like granite, are not adequately addressed by current anti-peeling agents, and hot-melt adhesives face issues with heat resistance, odor, and appearance, requiring improved materials with enhanced properties.
Innovation Solution
A silane-containing compound with a specific cyclic structure and modified hydrogenated petroleum resin with controlled bromine value, silane modification, and molecular weight, combined with a condensation reaction, to enhance adhesion and heat resistance, reduce odor, and improve coatability and adhesive strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If resin acids and fatty acids are used as anti-peeling agents in asphalt, then adhesion between asphalt and aggregate is improved, but cost increases and sufficient anti-peeling effect cannot be obtained for acid rocks such as granite
Solution Approach 1:
The patent changes the chemical parameters of the anti-peeling agent by using silane-containing compounds with specific structures (formulae 1-4) instead of conventional resin acids and fatty acids. This parameter change enables achieving sufficient anti-peeling effect on acid rocks like granite while reducing the required dosage and cost
Solution Approach 2:
The invention creates a composite anti-peeling system by combining silane-containing compounds with specific cyclic structures and silane groups. This composite material approach provides both cost-effectiveness and superior performance on challenging substrates like granite, resolving the contradiction between cost and effectiveness
2Strength
If silane-containing coupling agent is used to suppress asphalt peeling, then adhesion is improved, but the efficiency of functional expression is low and the amount required is large which increases cost
Solution Approach 1:
The patent applies local quality by designing silane-containing compounds with specific local structures (cyclic structures in formulae 1-4) that concentrate the functional expression at critical interfaces. This localized structural design enhances the efficiency of functional expression, allowing lower dosages to achieve the same adhesion effect
Solution Approach 2:
By changing the structural parameters of the silane-containing compound to include specific cyclic structures and controlling the number and arrangement of silane groups, the patent optimizes the compound's reactivity and bonding efficiency, thereby improving functional expression efficiency and reducing the required amount
3Strength
If hot-melt adhesive is used to bond objects, then adhesion is achieved, but at high temperatures the bonded portion is likely to be deformed or peeled off
Solution Approach 1:
The patent replaces the conventional thermal bonding mechanism with a chemical bonding mechanism using silane-containing compounds. The silane groups form chemical bonds (Si-O-Si crosslinks) that provide heat-resistant adhesion, substituting the mechanical/thermal bonding system with a chemically bonded system that maintains strength at high temperatures
Solution Approach 2:
The invention creates a composite adhesive system combining organic polymer matrix with inorganic silane crosslinks. This composite structure provides both the adhesion properties of organic materials and the heat resistance of inorganic silane networks, enabling the bonded portion to resist deformation and peeling at high temperatures
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 silane-containing compound and modified petroleum resin effectively suppress asphalt peeling, improve water resistance, and provide high adhesive strength with reduced odor and improved appearance, addressing the limitations of current materials.
Implementation Method 1
Silane compounds are used as materials that enhance the affinity between inorganic substances and organic substances
Implementation Method 2
combined with a condensation reaction, to enhance adhesion and heat resistance
Implementation Method 3
The silane-containing compound and modified petroleum resin effectively suppress asphalt peeling, improve water resistance
Data Source
AI summary
A silane-containing compound having a cyclic structure in a molecular structure; a modified hydrogenated petroleum resin in which a bromine value, a silicon element content, a weight average molecular weight, and a molecular weight distribution are specific values; a modified hydrogenated petroleum resin obtained by subjecting the modified hydrogenated petroleum resin to a condensation reaction; an adhesive composition including the modified hydrogenated petroleum resin; an asphalt composition containing the silane-containing compound or the modified hydrogenated petroleum resin.