Damp Proof Course Using Silane Composite
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing damp-proof course chemicals, particularly those based on silicone, exhibit limited performance in providing effective water resistance for building substrates.
Innovation Solution
A damp-proof course article comprising an absorbent member and a damp-proof course material that includes a combination of octyltriethoxysilane and propylalkoxysilanes, along with a non-reactive material like ethanol or white spirit, which is absorbed into the absorbent member to enhance water resistance and prevent disproportionate release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional silicone-based chemicals are used for damp-proof courses, then the application process is simple, but the water resistance performance is limited
Solution Approach 1:
The patent uses a composite chemical formulation combining octyltriethoxysilane (5-50 wt%) and propyltrimethoxysilane (5-45 wt%) to achieve superior water resistance performance. This composite approach allows the damp-proof course to effectively repel water while maintaining compatibility with various building substrates, resolving the contradiction between performance and complexity.
Solution Approach 2:
The patent optimizes the concentration parameters of the active agents, specifically using octyltriethoxysilane at 5-50 wt% and propyltrimethoxysilane at 5-45 wt%, to achieve maximum water resistance. By carefully controlling these compositional parameters, the formulation delivers enhanced performance without requiring overly complex preparation procedures.
2Reliability
If damp-proof course material is applied to building substrates, then water resistance is improved, but water absorption by the substrate remains a problem
Solution Approach 1:
The damp-proof course material acts as an intermediary layer between the building substrate and external water sources. The combination of octyltriethoxysilane and propyltrimethoxysilane forms a hydrophobic barrier that prevents water from penetrating into the substrate, effectively blocking the harmful water absorption while allowing the substrate to retain its structural properties.
3Reliability
If chemicals are applied to existing damp-proof courses, then some protection is provided, but disproportionate release and performance limitations occur
Solution Approach 1:
The patent formulation ensures continuous and controlled release of the damp-proofing agents into the substrate. The combination of octyltriethoxysilane and propyltrimethoxysilane provides sustained protection by gradually penetrating and forming a lasting hydrophobic barrier, preventing disproportionate release while maintaining consistent performance over time.
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 combination of octyltriethoxysilane and propylalkoxysilanes significantly improves water resistance and reduces water absorption in building materials, offering better prevention of moisture ingress compared to traditional silicone-based solutions.
Implementation Method 1
an absorbent member and damp proof course material absorbed into the absorbent member
Implementation Method 2
the active agent comprises a combination of an octyltriethoxysilane and one or more selected from propyltrimethoxysilane and propyltriethoxysilane
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A damp proof course article (20) for forming a damp proof course in a substrate (10) is disclosed. The damp proof course article comprises an absorbent member (22) and a damp proof course material absorbed into the absorbent member. The damp proof course material comprises an active agent, wherein the active agent comprises an alkoxysilane.