离岸价格
Get Latest Price2080 ~ 2400 / Metric Ton ( Negotiable )
|15 Metric Ton Minimum Order
国:
China
モデル番号:
HYST-PVA
离岸价格:
2080 ~ 2400 / Metric Ton ( Negotiable )Get Latest Price
ロケーション:
China
最低注文量の価格:
2080 per Metric Ton
最低注文量:
15 Metric Ton
パッケージの詳細:
25kg bag
納期:
within 7-10 days after receiving deposit
供給能力:
5000 Metric Ton per Month
支払いタイプ:
T/T, L/C, Western Union
製品グループ :
連絡先担当者 Paul
Room 301, 3/F, Business Center, NO. 50, Middle HONGKONG Road, Shinan District, Qingdao, Shandong
Polyvinyl acetate, PVA, PVAc, poly(ethenyl ethanoate), is a
rubbery synthetic polymer with the formula (C4H6O2)n. It belongs to
the polyvinyl esters family with the general formula -[RCOOCHCH2]-.
It is a type of thermoplastic. It should not be confused with the
related polymer polyvinyl alcohol, which is also called PVA.
Polyvinyl acetate is a component of a widely used glue type,
commonly referred to as wood glue, white glue, carpenter's glue,
school glue, Elmer's glue (in the US), or PVA glue.
Applications and uses
As an emulsion in water, PVAc emulsions are used as adhesives for
porous materials, particularly for wood, paper, and cloth, and as a
consolidant for porous building stone, in particular sandstone.[4]
Uses:
as wood glue PVAc is known as "white glue" and the yellow
"carpenter's glue" or PVA glue.
as paper adhesive during paper packaging converting
in bookbinding and book arts, due to its flexible strong bond and
non-acidic nature (unlike many other polymers). The use of PVAC on
the Archimedes Palimpsest during the *0th century greatly hindered
the task of disbinding the book and preserving and imaging the
pages in the early *1st century, in part because the glue was
stronger than the parchment it held together.
for handcrafted works.
as envelope adhesives,
as wallpaper adhesive
The stiff homopolymer PVAc, but mostly the more soft copolymer a
combination of vinyl acetate and ethylene, vinyl acetate ethylene
(VAE), is used also in paper coatings, paint and other industrial
coatings, as binder in nonwovens in glass fibers. sanitary napkins,
filter paper and in textile finishing
PVAc can also be used as coating to protect cheese from fungi and
humidity[citation needed].
Polyvinyl acetate is also the raw material to make other polymers
like:
Polyvinyl alcohol -[HOCHCH2]-: Polyvinyl acetate is partially or
completely hydrolysed to give polyvinyl alcohol. This reversible
saponification and esterification reaction was a strong hint for
Hermann Staudinger in the formulation of his theory of
macromolecules.
Polyvinyl acetate phthalate (PVAP): Polyvinyl acetate is partially
hydrolyzed and then esterified with phthalic acid.
国: | China |
モデル番号: | HYST-PVA |
离岸价格: | 2080 ~ 2400 / Metric Ton ( Negotiable ) Get Latest Price |
ロケーション: | China |
最低注文量の価格: | 2080 per Metric Ton |
最低注文量: | 15 Metric Ton |
パッケージの詳細: | 25kg bag |
納期: | within 7-10 days after receiving deposit |
供給能力: | 5000 Metric Ton per Month |
支払いタイプ: | T/T, L/C, Western Union |
製品グループ : | Others |