Metallic Crosslinking Coagent for Halogen-Free Flame Retardant Compatibility
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Solution Overview
Problem
Conventional plastic materials face challenges with halogenated flame retardants being prohibited due to safety concerns, and organic or inorganic alternatives often cause incompatibility and instability in low-polar rubber materials, leading to pollution and deterioration of plastic properties.
Innovation Solution
A novel metallic crosslinking coagent with a specific chemical structure, incorporating a divalent metal ion, an organic phosphorus oxide group, and a metallophilic acrylate group, which acts as both a crosslinking agent and flame retardant, improving mechanical and thermal properties while enhancing compatibility with organic or inorganic flame retardants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If halogenated flame retardants are used to achieve flame retardancy, then flammability standards are met, but safety concerns lead to prohibition or control
Solution Approach 1:
The invention changes the chemical composition parameters by using metallic crosslinking coagents with specific metal ions (zinc, calcium, magnesium, barium) combined with acrylate or methacrylate groups, replacing prohibited halogenated compounds while maintaining flame retardancy through different chemical mechanisms
Solution Approach 2:
The invention creates composite flame retardant systems by combining metallic crosslinking coagents with organic phosphorus flame retardants or inorganic flame retardants, achieving synergistic effects that maintain fire safety without using prohibited halogenated substances
2Object-generated harmful factors
If organic phosphorus or inorganic flame retardants are used to replace halogenated flame retardants, then safety concerns are addressed, but incompatibility and instability occur in low-polar rubber materials
Solution Approach 1:
The metallic crosslinking coagent acts as an intermediary substance that bridges the incompatibility between low-polar rubber matrices and polar flame retardant additives, using its specific chemical structure with metal ions and carbonyl groups to enable stable integration of organic phosphorus or inorganic flame retardants
Solution Approach 2:
The invention modifies the chemical parameters of the flame retardant system by introducing metallic crosslinking coagents with specific functional groups that change the polarity and compatibility characteristics, enabling stable dispersion of flame retardants in low-polar rubber materials
3Strength
If conventional acrylate salts of metals are used as crosslinking agents, then mechanical strength and thermal resistance improve, but compatibility with organic phosphorus or inorganic flame retardants deteriorates
Solution Approach 1:
The metallic crosslinking coagent performs multiple functions simultaneously: it acts as a crosslinking agent to improve mechanical strength and thermal resistance, while also serving as a compatibility promoter for organic phosphorus or inorganic flame retardants, eliminating the need for separate additives
Solution Approach 2:
The invention merges the crosslinking function and flame retardant compatibility function into a single metallic crosslinking coagent molecule, combining features of traditional crosslinking agents with flame retardant promoters to achieve synergistic effects
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 metallic crosslinking coagent effectively improves the crosslinking efficiency and mechanical properties of resin compositions, while ensuring compatibility with halogen-free flame retardants, resulting in a safer and more environmentally friendly material.
Implementation Method 1
a metallic crosslinking coagent having a chemical structure represented by the following formula (I): wherein, M2+ is a divalent metal ion; R1 is hydrogen or an alkyl group; R2 is and X is larger than 0 and less than 2
Data Source
AI summary
Provided are a metallic crosslinking coagent, preparation methods thereof, and a resin composition comprising the metallic crosslinking coagent. With the active-hydrogen containing organic phosphorus compound group and metallophilic acrylate group, the metallic crosslinking coagent provides both stabilizer and flame-retardant effects, enhances the crosslinking efficiency of the resin composition, and improves the compatibility between flame retardant and the polymer. Accordingly, the metallic crosslinking coagent is effective to improve the mechanical properties of the application material and to develop a safe and environmentally friendly flame retardant material.