Molded Article Surface Scratch Resistance via Silylated Polyolefin
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing molded articles made from resins lack effective scratch and soil resistance, with previous attempts not adequately addressing these issues, particularly in applications requiring durability and resistance to abrasion and oil stains.
Innovation Solution
A molded article composed of a thermoplastic or thermosetting resin combined with a silylated polyolefin, where the silylated polyolefin is derived from a reaction between a silicon-containing compound and a vinyl group-containing compound, forming a block copolymer structure that enhances scratch and soil resistance through increased silicon concentration on the surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional resins (thermoplastic or thermosetting) are used for molding, then the molding process is simple and cost-effective, but the molded articles lack scratch resistance and soil resistance
Solution Approach 1:
The patent modifies the chemical composition parameters of the resin by incorporating silylated polyolefin at controlled concentrations (0.01-10 parts by weight per 100 parts resin). This chemical parameter change transforms the surface properties of the molded article to provide scratch resistance and soil resistance while maintaining the simplicity of the molding process
Solution Approach 2:
The patent creates a composite material system by combining conventional resin with silylated polyolefin. The silylated polyolefin component provides the desired surface properties (scratch and soil resistance) while the base resin maintains processability and structural integrity, resolving the contradiction between performance and complexity
2Reliability
If silicone-modified olefin wax is added to improve surface properties, then scratch resistance may be enhanced, but the molded article shows poor soil resistance and water repellency
Solution Approach 1:
The patent changes the chemical structure parameters by using silylated polyolefin with specific molecular weight (100-1,000,000) and controlled silylation degree. This parameter optimization enables the material to simultaneously achieve scratch resistance through surface modification and soil resistance through appropriate surface energy characteristics, unlike conventional silicone-modified olefin wax
3Reliability
If the silylated polyolefin concentration is increased to improve scratch resistance, then surface durability is enhanced, but the molded article loses flexibility and processability
Solution Approach 1:
The patent optimizes the concentration parameter of silylated polyolefin to a specific range (0.01-10 parts by weight per 100 parts resin). Within this range, the silylated polyolefin provides sufficient surface concentration for scratch resistance while maintaining the resin's flexibility and moldability. This parameter optimization resolves the contradiction between surface durability and processability
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 solution provides a molded article with improved scratch resistance, including abrasion resistance and soil resistance such as water and oil repellency, by concentrating the silylated polyolefin on the surface, thereby preventing stains and enhancing durability.
Implementation Method 1
concentrating the silylated polyolefin on the surface
Implementation Method 2
soil resistance such as water and oil repellency
Implementation Method 3
oil repellency
Data Source
AI summary
The molded article of the present invention is a molded article formed of a composition including 100 parts by weight of at least one kind of resin selected from a group consisting of thermoplastic resins and thermosetting resins, and 0.01 parts by weight to 10,000 parts by weight of a silylated polyolefin, which is obtained by a reaction between a silicon-containing compound containing a structural unit represented by Formula (1) and a vinyl group-containing compound having a number average molecular weight of equal to or more than 100 and equal to or less than 500,000 that is measured by GPC (here, a case that uses a compound having 2 or more SiH groups per molecule as the silicon-containing compound and a compound having 2.0 or more vinyl groups on average per molecule as the vinyl group-containing compound, is excluded), a derivative thereof, or a mixture of these. -Si(R1)H-Y1- (1) (In Formula (1), R1 represents a hydrogen atom, a halogen atom, or a hydrocarbon group, and Y1 represents O, S, or NR30 (R30 represents a hydrogen atom or a hydrocarbon group).)