سعر فوب
أحصل على آخر سعر2080 ~ 2400 / Metric Ton ( Negotiable )
|15 Metric Ton Minimum Order
بلد:
China
نموذج رقم:
HYST-PVA
سعر فوب:
2080 ~ 2400 / Metric Ton ( Negotiable )أحصل على آخر سعر
الموقع:
China
سعر الحد الأدنى للطلب:
2080 per Metric Ton
الحد الأدني للطلب:
15 Metric Ton
تفاصيل التغليف:
25kg bag
موعد التسليم:
within 7-10 days after receiving deposit
القدرة على التوريد:
5000 Metric Ton per Month
نوع الدفع:
T/T, L/C, Western Union
مجموعة المنتج :
الشخص الذي يمكن الاتصال به 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.
بلد: | China |
نموذج رقم: | HYST-PVA |
سعر فوب: | 2080 ~ 2400 / Metric Ton ( Negotiable ) أحصل على آخر سعر |
الموقع: | China |
سعر الحد الأدنى للطلب: | 2080 per Metric Ton |
الحد الأدني للطلب: | 15 Metric Ton |
تفاصيل التغليف: | 25kg bag |
موعد التسليم: | within 7-10 days after receiving deposit |
القدرة على التوريد: | 5000 Metric Ton per Month |
نوع الدفع: | T/T, L/C, Western Union |
مجموعة المنتج : | Others |