Polyvinyl Alcohol Resin products is white
solid, the appearance can be divided into three kinds: flocculent, granular and
powder. PVA Resin is non-toxic, tasteless, non-polluting, and can be dissolve
in water at the temperature of 80 to 90 ℃. The aqueous solution of Polyvinyl Alcohol Resin has good adhesion
and film forming properties, it has resistant to oil, lubricants and most
organic solvents such as hydrocarbons. Polyvinyl Alcohol PVA has the properties of
long-chain polyol esters, ethers, acetals and other chemical properties.
At the same time of preparation of aqueous
solutions, this product is not bubbling, but in high concentration, speed
faster and also produce small amounts of foam in order to contain the bubble,
we should add defoamer: 0.01-0.05% (PVA as a benchmark) octanol, phosphoric
acid tributyl ester or 0.2-0.5% (PVA as a benchmark) silicone emulsion.
Anti-corrosion: If the Polyvinyl AlcoholResin has been long-term storage, the water in aqueous solution will have a
corruption, but it does not affect the performance of this product. At this
point, we should add 0.01-0.05% (PVA as a benchmark) of formaldehyde, salicylic
acid or other preservatives.
Rust prevention: Storage in tools, you
should add traces of weak bases, should be added when meat is used 0.02-0.05%
(PVA as a benchmark) of sodium nitrite, the best use of stainless steel,
plastic containers.
And the Polyvinyl Alcohol Resin should be
stored in ventilated, cool and dry place, away from sources of ignition. And
should handle with care during transport, and prevent damage to the packaging.
Polyvinyl acetate emulsion (PVAC) is mainly
based on vinyl acetate monomer, polymer, commonly known as the white LaTeX. The
latex-free environment, the price is cheap, easy to use, are porous materials
such as wood, paper, fiber adhesive ideal for. It is widely used in printing,
bonding, wood construction, leather, tobacco processing, paper processing,
fiber composite, aluminum foil paper, Emery cloth, sand paper adhesive industry,
can also be used for insulating plates for interior wall paint, steel
processing and so on.
Interesting & informational post. Thanks for sharing. Will share this blog at Tatvachintan
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