Flame-Retardant Composition Using Silane Coupling Agent
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Solution Overview
Problem
Conventional intumescent flame retardants for synthetic resins suffer from poor handleability, storage stability, and compromised flame retardancy due to powder rise-up and caking issues.
Innovation Solution
A flame retardant composition comprising melamine salts, piperazine salts, silane coupling agents, and aliphatic dicarboxylic acid ether esters, with optional components like silicone oil and zinc oxide, is developed to enhance handleability, storage stability, and flame retardancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional intumescent flame retardants are used, then flame retardancy is achieved, but handleability deteriorates due to powder rise-up
Solution Approach 1:
A silane coupling agent is introduced as an intermediary substance between the intumescent flame retardant components and the synthetic resin. This coupling agent prevents direct interaction that causes powder rise-up, thereby improving handleability while preserving flame retardancy through the mediator's buffering effect
Solution Approach 2:
The chemical and physical parameters of the flame retardant composition are modified by adding specific compounds (silane coupling agent, aliphatic dicarboxylic acid ether ester) that change the surface properties and interfacial characteristics, reducing powder rise-up tendency while maintaining flame retardant performance
2Reliability
If conventional intumescent flame retardants are used, then flame retardancy is achieved, but storage stability deteriorates due to caking
Solution Approach 1:
The silane coupling agent acts as a protective intermediary layer around flame retardant particles, preventing them from aggregating and caking during storage. This mediator maintains particle separation and compositional stability without compromising the flame retardant mechanism
Solution Approach 2:
The silane coupling agent and aliphatic dicarboxylic acid ether ester are added in advance to the flame retardant composition before storage, performing preliminary protective action that prevents caking from occurring during subsequent storage periods, ensuring long-term stability
3Reliability
If conventional intumescent flame retardants are used, then flame retardancy is achieved, but handleability and storage stability worsen simultaneously
Solution Approach 1:
The invention creates a composite flame retardant system combining multiple components (melamine salt, piperazine salt, silane coupling agent, aliphatic dicarboxylic acid ether ester) that work synergistically. This composite structure simultaneously improves handleability and storage stability while maintaining flame retardancy, resolving the dual deterioration issue
Solution Approach 2:
Multiple compositional parameters are adjusted simultaneously by introducing the silane coupling agent and aliphatic dicarboxylic acid ether ester, which change the physical and chemical properties of the flame retardant composition to improve both handleability and storage stability without sacrificing flame retardant performance
Data Source
AI summary
The invention provides a flame retardant composition including: (A) 20 to 50 parts by mass of at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate; (B) 50 to 80 parts by mass of at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate (with the proviso that the total of component (A) and component (B) is 100 parts by mass); (C) 0.01 to 5.0 parts by mass of a silane coupling agent; and (D) 0.01 to 1.0 part by mass of an aliphatic dicarboxylic acid ether ester compound represented by general formula (1). The details of general formula (1) are as described in Description.