PVF film, PVF transparent film
A PVF film , also known as polyvinyl fluoride film (polyvinyl
fluoride), referred to PVF. And a thermoplastic resin . Odorless,
non-toxic white powder. Density 1.38. 240 °C above decomposition . Has a crystal structure, high transparency (
via UV ) , high electrical insulation properties, high toughness ,
good chemical resistance , anti-aging and resistance to corrosion.
And the ability -73 ~ +121 °C. Molecular fluorine and fluorocarbon copolymer extruded . Or
copolymers of fluorine-containing fluorocarbon , greater than any
polymer chemical bonding and structural stability. PVF film on the
sunshine, chemical solvents, acid corrosion , moisture and
resistance and durability is improved significantly .
A film made of , can be used as agricultural film, protective film material ,
packing grease and corrosive substances, can be used as electrical insulation materials.
Production and processing , PVF film laterally and longitudinally extending , to form
molecular lattices , greatly improving its physical properties.
PVF film wear resistance , anti- moisture penetration capability
and scalability which can be increased to double.
PVF film does not contain plasticizers, color lasting stability,
anti- bleaching agent, to prevent chalking and fungal growth .
Repulsion of its large surface to prevent dust defiled , easy
cleaning and maintenance .
Moreover , not only is the strongest detergent PVF film is not
From minus 70 degrees to 110 degrees , PVF film can guarantee
excellent performance, the highest peak instantaneous temperature
to 200 degrees
and will not damage them . Also , PVF film without plasticizer , so
it has excellent anti-aging properties and in a very wide
temperature range to maintain the toughness and bending. For
testing institutions for PVF films for 20 years
outdoor weathering tests.
B . PVF films in the construction industry main purposes:
1.PVF film and sheet metal complex : for example industrial plants
facades, roofs or commercial building facades protection board , or
for highway noise barriers .
2.PVF composite film and PVC film : for the stadium space membrane
3.PVF material film is a good weather , a PVF film wrapped sealing
glass fiber or rock wool insulation can significantly extend the
life of the bag .
4.PVF film has good UV resistance , can be widely used in outdoor
advertising , posters protective film.
C. PVF and PVDF thin film performance comparison:
PVDF film , the scientific name polyvinylidene fluoride ( commonly
known as " fluorocarbon coating " or " coating king ") PVF film ,
PVDF coatings belong to a family .
PVF plate , the PVF film was affixed to a special process from the
surface of the metal plate cover ; PVDF plate , the PVDF paint
coating ( roll coating or spray coating )
from the surface of the metal plate
1.PVF film and PVDF film common characteristics :
Both of which are copolymers of fluorine-or fluorocarbon , more
than any other polymers which have greater structural stability and
chemical binding force , so that: it is not the cause of pollution
atmosphere react with strong corrosion resistance even the solvents
it will not cause damage , thus protecting the surface of the metal
plate is not easy to rust,
decorative surface will not fade or brittle ;
It is not affected by the intensification of ultraviolet light to
produce changes in organizational structure , the sun does not
accelerate its "aging" ;
It will not work due to changes in ambient temperature to form a
repeated cycle of structural changes , the working environment
temperature change is allowed 180 °C, (-70 ~ +110 °C) can adapt to almost all regions of the Earth 's outdoor
PVDF films and coatings
2.PVF different points:
Although both the same chemical composition , but the coating
formation process and the resulting differences in the way they use
the difference in performance :
3 compactness decorative protective layer
PVF PVF film is composed of a copolymer extrusion, this process
ensures the formation of a dense layer of PVF decorative flawless ,
never without PVDF paint spray
or roller frequently occur during the pinholes, hairline cracks and
other defects. So : PVF film is better than isolation decorative
layer PVDF coatings. PVF film faced plywood
can be used in corrosive environments worse places ( for example ,
the beach area ) in Japan and other countries are more regulations
in these areas to use metal
siding PVF film covers ! Have conducted test: the PVDF coated steel
sheets and Tedlar PVF film while placed above hydrochloride ,
aerosol exposure HCL ,
30 minutes later , HCL gas erosion of the steel surface coated with
PVDF and PVF did not protect steel unchanged.
4.PVF molecular lattice film manufacturing process along the
vertical and horizontal arrangement of the pressing direction of
its greatly enhanced physical strength ,
so that a PVF film having greater toughness , 180 ° bending test with a 43 times loupe enlarged PVF film does not
crack, the crack can be seen clearly PVDF coating ,
the reason is that a PVF film elongation of 100 %, while the PVDF
coating did not! This slight difference was significant, because
the future will come soon from corrosion
crack here ! PVF film with greater wear ability , according to the
requirements of ASTM D968 falling sand abrasion tests showed that
the PVF film is equivalent to 37.5 μ
100 μ PVDF coating wear ability , so the atmosphere, the erosion of sand
in front , PVF board the life will be longer ! Excellent physical
properties of a PVF film determines
its excellent processing performance , it can withstand shearing,
punching , rolling , drilling, nailing , rolled edges, and folding
without cracking , and other operations , or
other conditions that affect the damage life .
5 PVF film extrusion surface smooth and delicate, no roller or
spray surface stripes, orange peel , microfold like defects. So I
compared PVDF coated plate ,
PVF film paste overlying finer steel decorative surface appearance
Dense PVF film is not easy to stain steel surface under normal
circumstances, virtually maintenance-free ;
Smooth the PVF film of fine clean without any support microbial or
fungal growth environment , does not allow complete penetration of
If you do clean , generally flush that is able to meet the
If the spill or by human contact with pen oil , paint or grease and
other contamination , can be any " cleaner " or even "strong
solvent" such as acetone and
other cleaning , without fear of damage to the PVF film surface ,
therefore , PVF film covering the wall or wallboard most suitable
for schools , hospitals, or wells ,
in these places , PVF film is easy to clean features make it
particularly suitable to be sterilized environment.
As a result, more and more architects think : PVF system is outside
when there is a more serious environmental pollution hope building
long-life, do not fade when you consider the material of choice.
PVF film’s structure is stable, which wouldn’t change with the change of the working environment temperature, so
that it can adapt to almost all regions of the
outdoor environment on the earth . It can be used for the
protective film of material such as solar backsheet,Space membrane
,atmospheric sampling bags,
aircraft interiors,noise barriers,agricultural film ,electrical
insulating material and so on .
Our PVDF can meet the requirements of different materials for its
excellent performance .
Main Features :
Excellent aging resistance and thermal stability
Excellent chemical solvent resistance
Excellent gas and liquid resistance
Maintain toughness in the wild temperature range
Flame retardant and low smoke characteristics
High dielectric strength
High wear resistance
Excellent self-cleaning performance
PVF Technical parameters .
Elongation at break
Heat shrinkage rate (150°C 30min)
Water Vapor transmission rate (38°C 90RH)