[Latin Name]  Pinus pinaster.

[Specification] OPC ≥ 95%

[Appearance] Red brown fine powder

Plant Part Used: Bark

[Particle size] 80Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Shelf life] 24 Months

[Package] Packed in paper-drums and two plastic-bags inside.

[Net weight] 25kgs/drum

[What is Pine bark?]

Pine bark, botanical name Pinus pinaster, is a maritime pine native to southwest France that also grows in countries along the western Mediterranean.  Pine bark contains a number of beneficial compounds that are extracted from the bark in a way that doesn’t destroy or damage the tree.

[How does it work?]

What gives pine bark extract its notoriety as a powerful ingredient and super antioxidant is that it’s loaded with oligomeric proanthocyanidin compounds, OPCs for short. The same ingredient can be found in grape seeds, the skin of peanuts and witch hazel bark. But what makes this miracle ingredient so amazing?

While OPCs found in this extract are mostly known for their antioxidant-producing benefits, these amazing compounds exude antibacterial, antiviral, anticarcinogenic, anti-aging, anti-inflammatory and anti-allergic properties. Pine bark extract can help reduce muscle soreness and may help improve conditions relating to poor circulation, high blood pressure, osteoarthritis, diabetes, ADHD, female reproductive issues, skin, erectile dysfunction, eye disease and sports stamina.

Seems like it must be pretty amazing, but let’s look closer. The list goes on a bit further, as the OPCs in this extract may “inhibit lipid peroxidation, platelet aggregation, capillary permeability and fragility, and to affect enzyme systems,” which basically means it may be a natural treatment for many serious health conditions, such as stroke and heart disease.

[Function]

1. Lowers Glucose Levels, Improving Diabetic Symptoms
2. Helps Prevent Hearing Loss and Balance
3. Staves Off Infections
4. Protects the Skin from Ultraviolet Exposure
5. Decreases Erectile Dysfunction
6. Reduces Inflammation
7.  Helps Increase Athletic Performance

5 htp

https://goo.gl/3SJgBh

Chemistry playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_KyuOalV6rwHjo810Zaa6xq

more at https://scitech.quickfound.net/

Overview of how plastics & synthetic rubbers are made.

Reupload of a previously uploaded film with improved video & sound.

Public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).

https://creativecommons.org/licenses/by-sa/3.0/

https://en.wikipedia.org/wiki/Polymer

A polymer is a large molecule (macromolecule) composed of repeating structural units. These sub-units are typically connected by covalent chemical bonds. Although the term polymer is sometimes taken to refer to plastics, it actually encompasses a large class of compounds comprising both natural and synthetic materials with a wide variety of properties.

Because of the extraordinary range of properties of polymeric materials, they play an essential and ubiquitous role in everyday life. This role ranges from familiar synthetic plastics and elastomers to natural biopolymers such as nucleic acids and proteins that are essential for life.

Natural polymeric materials such as shellac, amber, wool, silk and natural rubber have been used for centuries. A variety of other natural polymers exist, such as cellulose, which is the main constituent of wood and paper. The list of synthetic polymers includes synthetic rubber, Bakelite, neoprene, nylon, PVC, polystyrene, polyethylene, polypropylene, polyacrylonitrile, PVB, silicone, and many more.

Most commonly, the continuously linked backbone of a polymer used for the preparation of plastics consists mainly of carbon atoms. A simple example is polyethylene (‘polythene’ in British English), whose repeating unit is based on ethylene monomer. However, other structures do exist; for example, elements such as silicon form familiar materials such as silicones, examples being Silly Putty and waterproof plumbing sealant. Oxygen is also commonly present in polymer backbones, such as those of polyethylene glycol, polysaccharides (in glycosidic bonds), and DNA (in phosphodiester bonds).

Polymers are studied in the fields of polymer chemistry, polymer physics, and polymer science…

Polymerization is the process of combining many small molecules known as monomers into a covalently bonded chain or network. During the polymerization process, some chemical groups may be lost from each monomer. This is the case, for example, in the polymerization of PET polyester. The monomers are terephthalic acid (HOOC-C6H4-COOH) and ethylene glycol (HO-CH2-CH2-OH) but the repeating unit is -OC-C6H4-COO-CH2-CH2-O-, which corresponds to the combination of the two monomers with the loss of two water molecules. The distinct piece of each monomer that is incorporated into the polymer is known as a repeat unit or monomer residue…

https://en.wikipedia.org/wiki/Synthetic_rubber

Synthetic rubber is any type of artificial elastomer, invariably a polymer. An elastomer is a material with the mechanical (or material) property that it can undergo much more elastic deformation under stress than most materials and still return to its previous size without permanent deformation.About 15 billion kilograms of rubbers are produced annually, and of that amount two thirds is synthetic…

Natural vs synthetic rubber

Natural rubber, coming from latex, is mainly poly-cis-isoprene containing traces of impurities. Although it exhibits many excellent properties, natural rubber is often inferior to synthetic rubbers, especially with respect to its thermal stability and its compatibility with petroleum products.

Synthetic rubber is made by the polymerization of a variety of petroleum-based precursors called monomers. The most prevalent synthetic rubbers are styrene-butadiene rubbers (SBR) derived from the copolymerization of styrene and 1,3-butadiene. Other synthetic rubbers are prepared from isoprene (2-methyl-1,3-butadiene), chloroprene (2-chloro-1,3-butadiene), and isobutylene (methylpropene) with a small percentage of isoprene for cross-linking. These and other monomers can be mixed in various proportions to be copolymerized to produce products with a range of physical, mechanical, and chemical properties. The monomers can be produced pure and the addition of impurities or additives can be controlled by design to give optimal properties. Polymerization of pure monomers can be better controlled to give a desired proportion of cis and trans double bonds…