Coating Material Segmented Masking Tape for UV-Resistant Deterioration Testing
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Solution Overview
Problem
Conventional masking tapes leave adhesive residue on samples during deterioration evaluation tests, making it difficult to accurately measure level differences between deteriorated and undeteriorated parts, thereby hindering precise deterioration evaluation.
Innovation Solution
A coating material with a base material that prevents ultraviolet intrusion, featuring a non-adhesive layer without specific functional groups and an adhesive layer, allowing for clean separation from polymer materials, ensuring accurate deterioration evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a general masking tape is used for masking during deterioration evaluation tests, then the masking function is achieved, but adhesive remains on the sample surface after peeling, causing measurement errors
Solution Approach 1:
The masking tape is segmented into two distinct functional regions: an adhesive layer for masking and a non-adhesive layer for clean removal. This segmentation allows the tape to fulfill both the masking function and the clean removal requirement, eliminating adhesive residue that previously caused measurement errors.
Solution Approach 2:
Different regions of the masking tape are assigned different local qualities: the adhesive layer provides sticking power for effective masking, while the non-adhesive layer provides clean release properties. This local differentiation of material properties resolves the contradiction between effective masking and clean removal.
2Reliability
If masking tape with adhesive is used, then the sample surface can be masked effectively, but the adhesive residue increases the height of the undeteriorated part, making accurate evaluation impossible
Solution Approach 1:
The masking tape structure is segmented into adhesive and non-adhesive regions, allowing the adhesive layer to provide effective masking while the non-adhesive layer ensures clean removal without residue, thereby maintaining surface flatness and enabling accurate evaluation.
Solution Approach 2:
The non-adhesive layer acts as an intermediary between the adhesive layer and the sample surface during removal. It mediates the separation process to ensure clean detachment without leaving adhesive residue, thus preserving surface flatness.
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
Enables accurate deterioration evaluation by preventing adhesive residue and allowing precise measurement of level differences between deteriorated and undeteriorated parts, thus improving the reliability of tests like accelerated light resistance and weather resistance tests.
Implementation Method 1
a non-adhesive layer formed with a material that does not have adhesiveness to a polymer material
Implementation Method 2
an adhesive layer formed with a material that has adhesiveness to the polymer material
Implementation Method 3
a base material having a sheet-like or plate-like shape formed with a material that prevents intrusion of an ultraviolet ray
Data Source
AI summary
A coating material includes a base material having a sheet-like or plate-like shape, and a non-adhesive layer and an adhesive layer formed on one surface of the base material. The base material is formed with a material that prevents intrusion of an ultraviolet ray. The non-adhesive layer is formed with a material that does not have adhesiveness to a polymer material, and is formed in a first region of one surface of the base material. The adhesive layer includes a material having adhesiveness to a polymer material, and is formed in a second region in which the first region of the one surface of the base material is interposed.