Fire-Resistant Paper Machine Oil Using PAG and Polyol Ester Blends
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Solution Overview
Problem
High pressure paper machine oils, either mineral or Polyalphaolefin (PAO) synthetics, pose a significant safety risk due to potential ignition when exposed to open flames or hot surfaces, necessitating a fire-resistant alternative.
Innovation Solution
An anhydrous fire-resistant paper machine oil formulation utilizing blends of Polyalkylene Glycol (PAG) and Polyol Ester, combined with hindered phenolic antioxidants, high MW aromatic amines, ashless anti-wear additives, corrosion inhibitors, and silicon anti-foam, which are more difficult to ignite and self-extinguish upon flame removal, reducing fire spread risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mineral oil or PAO synthetic oil is used as paper machine lubricant, then lubrication performance is achieved, but fire safety is compromised due to easy ignition
Solution Approach 1:
The patent changes the chemical composition parameters of the base oil from mineral oil or PAO to a specific blend of polyol ester and PAG in controlled ratios. This parameter change transforms the fire safety characteristics while maintaining lubrication performance, as the new composition has higher ignition temperature and self-extinguishing properties
Solution Approach 2:
The invention creates a composite lubricant formulation by blending polyol ester and PAG in specific proportions (20:80 to 80:20). This composite approach combines the fire-resistant properties of polyol ester with the lubricity of PAG, achieving both safety and performance requirements that neither component could provide alone
2Reliability
If fire resistant properties are enhanced through formulation changes, then safety is improved, but formulation complexity increases
Solution Approach 1:
The patent establishes specific parameter ranges for the base oil blend (20:80 to 80:20 polyol ester to PAG ratios) and additive concentrations to achieve fire resistance. By defining clear parameter boundaries, the formulation maintains consistency and manufacturability while ensuring fire-safe performance without excessive complexity
Data Source
AI summary
A fire resistant paper machine oil comprising a blend of oil soluble base and water insoluble base having the formula: 0-100 wt % Oil Soluble PAG (Polyalkylene Glycol); 0-100 wt % Polyol Ester; an anti-wear additive; rust inhibitor; hindered phenolic anti-oxidant; alkylated di phenyl amine anti-oxidant; and, foam inhibitor. A blend of the base oils are the most preferred embodiment, however, a product could be formulated using only one type of base material such as an oil soluble base or a water insoluble base.