Abstract: In 1928 in St. Paul, Minnesot USA, Richard Drew invented the transparent protective
film. According to its functions, protective film is sub-divided into: high-temperature protective
film double-sided protective film, insulating protective film, special protective film, pressure
-sensitive protective film, die cutting protective film, Temporary surface protective film, different
functions for different industry needs.
Protective film - Process of invention
Applied in May 30, 1928 in the United Kingdom and the United States, Drew invented a very light
adhesive which can stick easily with pressure. The first trial product was not sticky enough, so
Drew was told: "Get this stuff back to your Scottish boss and ask them to put more glue! ("Scottish"
means “stingy". However, during the Great Depression, people found hundreds of uses for such
protective film, from patching clothes to protecting eggs, which are of great use.)
Protective film - Action principle
Why protective film can stick on things? Of course, because it is coated with a layer of adhesive!
The first adhesive was from animals and plants. In the 19th century, rubber is the main
component of adhesive, while in modern times various kinds of polymers widespread used.
The adhesive can stick to something that is due to bonding between adhesive molecules and
substrate molecules, which can bond molecules together firmly. Components of adhesive,
according to different brands, different types, there are a variety of different polymers.
Butyl protective film
1, Material composition
Butyl rubber water proof sealing adhesive tapes is mixture of butyl rubber, polyisobutene and
other main raw materials, in accordance with a special production formula, using the latest
patented technology, high-quality specific polymer materials (imported), through a special process
and finally produce environmentally friendly solvent-free adhesive sealing material.
2, Product features
(1) Excellent mechanical properties: high bond strength and tensile strength, good flexibility and
elongation properties, strong adaptability to interfacial deformation and cracking.
(2) Stable chemical performance: excellent chemical resistance, weather resistance and corrosion
resistance.
(3) Reliable application performance: good adhesion, waterproofing, sealing, low temperature
resistance and conformability. Good dimensional stability.
(4) Simple construction operation process
3. Scope of application
(1) Water proofing treatment for roof, underground and construction joint of new construction, and
lap seal for high-polymer water-proof material rolls.
(2) Construction joint sealing waterproofing for municipal engineering subway tunnel structure.
(3) Airtight, water proof and shock-absorbing for joints of colored rolled panels and sunshine board
works.
(4) Adhesive sealing treatment for automobile assembly.
(5) Waterproof sealing treatment for joints of steel construction.
(6) Aluminum composite foil butyl protective film is suitable for waterproof sealing under the sun for
civil roof, color steel, steel structure, waterproofing membrane, PC boards and so on.
Insulating protective film
Insulating protective film is specifically used by electricians to prevent leakage of electricity and it has
insulating effect. Insulating protective film has good insulation and voltage resistance, flaming
retardancy, weather resistance and other features. It is suitable for connecting wires, electrical
insulation protection and so on.
Production process: PVC film as the substrate coated with rubber pressure-sensitive adhesive.
Anti-corrosion protective film
It is adhesive tape used for antiseptic wound, which is divided into cold wrap and heat wrap. Cold
wrap tapes generally include polyethylene (composite) type anti-corrosion protective film,
polypropylene reinforced fiber anti-corrosion protective film, aluminum foil UV resistant anti-corrosion
protective film, polyethylene 660 (modified asphalt) protective film, double-sided adhesive anti
-corrosion inside tape (This protective film is seldom used in China, but very practical very widely
used in foreigin countries. Generally for export) and epoxy coal asphalt anti-corrosion protective
film. Executive standards are SY / T0414-98 and SY / T0447-96. Heat wrap tapes, also known as
radiation cross-linking polyethylene heat shrink wrap tape. The adhesive should be melted with
heat during application. Sometimes it needs to be assisted by solvent-free epoxy coating and
becomes three-layer structure anti-corrosion. Executive standard is SY / T0413-2002.
Shielding protective film
It is a kind of metal foil or conductive fabric with high conductive adhesive. Its conductive adhesive
and conductive substrate composes a complete conductor, which can bond with any metal face to
achieve electrical connection and electrical overlap of gaps. Shielding conductive protective film is
economical and practical shielding materials, which is easy to use.
Iron composite protective film
Operating temperature range: - 40 ℃ -100 ℃.
Purpose: seams between buildings, bridges, subways and underground concrete.
Features: waterproof, high bonding strength, high tensile strength, good adaptability to interface d
eformation and cracking.
Excellent chemical resistance, weather resistance and corrosion resistance. 80 ℃ high temperature
does not flow while low temperature 40 ℃ does not crack.
Polyimide protective film
Polyimide protective film, also known as Kapton protective film, polyimide film as the substrate coated
with imported organic silicon pressure sensitive adhesive. It has properties such as high temperature
resistance, acid resistance, solvent resistance, electrical insulation (H level), radiation proof and so on.
Temporary surface protective film
Usage: Provide a protective barrier to scratch, mark, damage and dirt at the process of
transportation and installation.
Applications: Stainless steel plate, Stainless steel deep drawing, aluminum profile, aluminum
window & door, coated aluminum plate, colored steel plate, mirrored steel plate, glass, carpet,
acrylic (PMMA) sheet, PVC sheet, ABS sheet, aluminum plastic composite panel, decorative
laminate, artificial marble, ceramic, aluminum ceiling and so on.
Advantages:
Good weatherability, stalbe adhesive strength, can be easily applied and removed. Leaving no
residue glue after removal.
UV resistance for up to 12 months.
