Color Durability Testing
Color Durability Testing - Related Videos
07:15
A Testing Platform for Durability Studies of Polymers and Fiber-reinforced Polymer Composites under Concurrent Hygrothermo-mechanical Stimuli
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2014
The durability of polymers and fiber-reinforced polymer composites in service is a critical aspect for their designs and condition-based maintenance. We present a novel low-cost laboratory testing platform for the investigation of the influence of concurrent mechanical and environmental loadings, and may help design more efficient yet safer composite structures.
10:27
Training Synesthetic Letter-color Associations by Reading in Color
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Cited by 5 •
2014
Reading in color is a new method for training letter-color associations that are typically found only in grapheme-color synesthetes. It involves an implicit form of training that has potential for long-term associative training methods because the training is a byproduct of reading and any text can be colored.
09:20
Color Afterimages
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Human color vision is impressive. People with normal color vision can tell apart millions of individual hues. Most amazingly, this ability is achieved with fairly simple hardware. Part of the power of human color vision comes from a clever bit of engineering in the human brain. There, color perception relies on what is known as an 'opponent system.' This means that the presence of one kind of stimulus is treated as evidence for...
08:52
Method to Produce Durable Pellets at Lower Energy Consumption Using High Moisture Corn Stover and a Corn Starch Binder in a Flat Die Pellet Mill
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Cited by 50 •
2016
In this study, a protocol was developed to produce good quality pellets using a flat die pellet mill at reduced specific energy consumption testing high-moisture corn stover and a starch based binder. The results indicated that adding a corn starch binder improved the pellet durability, reduced percent fines and decreased specific energy consumption.
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Brick Durability, Strength, and Appearance
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2024
Brick durability, strength, and appearance are crucial factors in construction, influencing the choice of bricks for specific applications. The process of freeze-thaw, for instance, significantly affects brick durability. This phenomenon occurs when water absorbed by a brick expands as it freezes, potentially causing damage when it melts and refreezes. Bricks are graded for durability: SW-grade bricks are the most durable, offering high strength and low water absorption, followed by MW-grade...
FAQs
Ultraviolet light can initiate photochemical reactions that alter dyes, pigments, coatings, or polymers. These reactions may be influenced by oxygen and can change the chemical structures responsible for visible color. Comparing exposed material with an untreated sample helps reveal whether light-driven degradation is occurring and supports evaluation of chemical stability.
Each exposure condition can promote a different degradation pathway. Heat may accelerate chemical changes, while moisture can enable interactions involving water. Chemical exposure may directly affect colorants or their surrounding material, and the resulting changes can differ from those caused by ultraviolet light. Testing several conditions helps identify which environment most strongly affects performance.
Abrasion evaluates whether physical wear removes or alters a colored surface during use. This condition is distinct from light, heat, moisture, or chemical exposure because it primarily represents mechanical damage. Including abrasion can show whether a coating, textile, polymer, or other material retains its apparent color when subjected to contact and repeated handling.
A tested specimen is compared with an untreated sample or a standardized color scale after controlled exposure. The comparison records the extent of fading or other color change rather than relying only on visual impressions. These measurements provide evidence for comparing materials, identifying unacceptable changes, and assessing whether a formulation meets its intended performance requirements.
A typical workflow selects the material and relevant exposure condition, prepares an untreated comparison, subjects the test specimen to controlled ultraviolet light, heat, moisture, chemicals, or abrasion, and then evaluates the resulting color change. The observations or measurements can be organized for comparison across materials, formulations, or exposure conditions.
Chemists use these evaluations to compare formulations, select materials, and support quality control. Results can indicate whether a dye, pigment, coating, polymer, or textile is vulnerable to a particular environmental condition. This information guides development of products with improved durability and helps connect observed color changes with chemical stability and performance.