Multifunctional Lubricant Composition for Flame Retardancy and Viscosity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current lubricant compositions face challenges with high toxicity, low viscosity, and poor mixability as both base oils and additives, particularly with phosphate-based compounds like tricresyl phosphate and triphenyl phosphate, which are needed for flame retardancy and abrasion resistance but have environmental concerns and handling issues.
Innovation Solution
A multifunctional lubricant composition comprising specific phosphorus compounds, including phosphorus compound (A), (B), and (C), with triphenyl phosphate and tricresyl phosphate in controlled amounts, offering a blend that can function as both a base oil and additive with improved safety, hydrolysis stability, and viscosity for effective lubrication in various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If phosphate-based compounds (TCP, TPP) are used as base oil for flame retardancy, then flame retardancy is improved, but toxicity increases and viscosity becomes too low
Solution Approach 1:
The patent uses composite phosphorus compounds comprising multiple components (aromatic hydrocarbons and phosphorus compounds) to achieve flame retardancy while reducing toxicity. The composite structure allows combining the beneficial flame-retardant properties with lower toxicity characteristics of specific molecular configurations.
Solution Approach 2:
The patent modifies molecular parameters by specifying precise structural characteristics (aromatic rings, phosphorus content, molecular weight ranges) to adjust both flame retardancy and toxicity. By changing the chemical structure parameters rather than using simple phosphates, the invention achieves improved safety profile while maintaining flame resistance.
2Temperature
If phosphate-based compounds (TCP, TPP) are used as base oil, then flame retardancy is improved, but viscosity is too low for effective lubrication
Solution Approach 1:
The patent combines aromatic hydrocarbons with phosphorus compounds to create a composite base oil that achieves appropriate viscosity for lubrication while maintaining flame retardancy. The composite structure provides both the viscosity needed for film formation and the flame-resistant properties.
Solution Approach 2:
The patent adjusts viscosity by controlling molecular weight, aromatic ring structure, and phosphorus content parameters. By optimizing these structural parameters, the invention achieves suitable viscosity ranges for effective lubrication while preserving flame retardant characteristics.
3Object-affected harmful factors
If water-containing base oil is used, then toxicity is reduced and cost is lowered, but maintenance and management become difficult due to water evaporation and microbial corrosion
Solution Approach 1:
The patent employs organic phosphorus compounds that, while not water-based, provide similar low toxicity benefits. These compounds are designed to be stable and resistant to degradation, effectively replacing water-containing systems without the associated maintenance issues.
Solution Approach 2:
The patent uses organic phosphorus compounds as intermediaries that provide the safety benefits of water-based systems (low toxicity) while avoiding the drawbacks (microbial growth, evaporation). These compounds act as a mediator between the desirable safety profile and the need for stable, maintainable lubrication.
4Object-affected harmful factors
If ester-based compounds containing polyols and linear saturated fatty acids are used, then toxicity is reduced, but flame retardancy becomes insufficient
Solution Approach 1:
The patent merges the low toxicity characteristics of ester-based compounds with the flame retardant properties of phosphorus compounds. By combining these functional components into a single base oil system, the invention achieves both safety and flame resistance simultaneously.
Solution Approach 2:
The patent creates a composite base oil containing both ester components (for low toxicity) and phosphorus compounds (for flame retardancy). This composite structure allows the lubricant to exhibit both the safety profile of esters and the thermal stability of phosphorus-based flame retardants.
Data Source
Figure 1
AI summary
An object of the present invention is to provide a multifunctional lubricant composition which serves as a base oil bringing together greater safety, higher hydrolysis stability, and a better viscosity than those of existing flame-retardant base oils for lubrication, and which exhibits high abrasion-preventing performance as an additive for lubrication. To achieve the object, provided is a multifunctional lubricant composition, including, with respect to 100 parts by mass of phosphorus compound (A) having a specific structure specified in the Description, 26 parts by mass to 43 parts by mass of phosphorus compound (B) having a specific structure specified in the Description, 0 parts by mass to 1.3 parts by mass of phosphorus compound (C) having a specific structure specified in the Description, and a total of 0 parts by mass to 1.3 parts by mass of triphenyl phosphate and tricresyl phosphate.