Read the Beforeitsnews.com story here. Advertise at Before It's News here.
Profile image
By Science and Technology
Contributor profile | More stories
Story Views
Now:
Last hour:
Last 24 hours:
Total:

Examining the Effects of Environmental Degradation on the Optical Properties of Manufactured Fibers of Natural Origin

% of readers think this story is Fact. Add your two cents.



Authors: Kelly M. Brinsko, M.S., Sebastian B. Sparenga, M.S., Meggan B. King, B.Sc.
Abstract:
Synthetic fibers derived from naturally derived biological polymers are used in textiles and clothing. Such fibers are referred to as Manufactured Fibers of Natural Origin, or MFNOs.
These fibers include viscose rayon, azlon, and polylactic acid (PLA), among others. With the production of manufactured fibers of natural origin increasing in recent years, these fibers are likely to become more common in regular case work in the forensic science laboratory. However, little is known about the changes occurring in their optical and physical properties as an effect of moisture, sunlight exposure, and exposure to various temperatures.
This study investigated the effects of such degradation on three types of MFNOs: viscose rayon, azlon, and PLA. These fibers, often proclaimed by manufacturers as being biodegradable, were expected to show the most change compared to synthetic fibers, such as polyester or nylon.
Fabric swatches representing each fiber type were exposed to freshwater, saltwater, heat, cold, ultraviolet light, and composter conditions and assessed every six to eight weeks for two years for changes in optical properties, infrared spectra, solubility, and melting-point behavior.
The study found that except for complete degradation, no significant changes were observed in the optical properties, infrared spectra, solubility, or melting points of any of the fibers in any of the environments for the duration of the experiment.
Morphological changes, however, were observed in two PLA swatches and two viscose swatches exposed to UV light, as well as one azlon fabric submerged in either freshwater or saltwater. All viscose swatches in the composter and water environments eventually deteriorated completely.
These results indicate that forensic fiber comparison can be conducted on such fibers exposed to different environments, while highlighting possible explanations for some observed morphological differences.


Source: http://criminal-justice-online.blogspot.com/2016/11/examining-effects-of-environmental.html



Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world. Anyone can join. Anyone can contribute. Anyone can become informed about their world. "United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.


LION'S MANE PRODUCT


Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules


Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, but it benefits growth of Essential Gut Flora, further enhancing your Vitality.



Our Formula includes: Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity. Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins. Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system. Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome. Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function. Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules Today. Be 100% Satisfied or Receive a Full Money Back Guarantee. Order Yours Today by Following This Link.


Report abuse

    Comments

    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    MOST RECENT
    Load more ...

    SignUp

    Login

    Newsletter

    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.