C A L I B R E P o l y c a r b o n a t e R e s i n s
P r o d u c t I n f o r m a t i o n G u i d e – A s i a P a c i f i
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LG-DOW Polycarbonate
CALIBRE™ Polycarbonate Resins
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LG DOW
Polycarbonate Ltd.,– the leading polycarbonate manufacturer providing excellent products and services.
LG DOW Polycarbonate Ltd. (LG-DOW), a joint venture between LG Corporation (former LG Chemical) and The Dow Chemical Company was formed in early 1999.On July 1, 2001, LG-DOW celebrated the successful start-up of the LG-DOW polycarbonate plant in Yeosu, Korea, and the transfer of Dow's polycarbonate market franchise in Asia Pacific.
Built on the strength and capabilities of the two parent companies. LG-DOW combines the knowledge and experience of these two global plastic leaders with the flexibility to meet the needs of local customers.
In Asia, LG-DOW is uniquely capable of delivering proven polycarbonate technology, the benefits associated with the worldwide CALIBRE™
Polycarbonate brand, and the local logistics flexibility to meet the just-in-time demands of a diverse customer base.
CALIBRE polycarbonate offers an unique balance of impact strength, heat
resistance, and optical clarity. Other features include: good dimensional stability,electrical properties and processability. CALIBRE polycarbonate resins have become the best choice for a multitude of applications.
LG-DOW is optimistic about the future of polycarbonate, with its exceptional performance and excellent value. Growth in Asia Pacific should outpace other regions. Therefore, LG-DOW has already built the infrastructure for a second polycarbonate plant at Yeosu and intends to continue investing in capacity expansion to meet the needs of our customers.
™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Applications
CALIBRE™ polycarbonate resins have successfully been used in a wide range of markets and applications. For a given application with specialized objectives, LG-DOW’s Technical Services & Development team would provide in-depth information and conduct pilot testing to ensure the same performance is achieved at full-scale manufacturing.
In the following sections, you will find the range of CALIBRE grades that are developed for a wide range of applications.
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Data Storage
To target the optical media industry, LG-DOW
works with customers to modify its CALIBRE
1080DVD polycarbonate resins, to meet the
requirements of VCD, CD-ROM, CD-R, CD-RW,
DVD and DVD-R formats.
The environmental friendly resins CALIBRE
1080DVD resins achieve optimal balance of
toughness and flowability, exceptional purity,
high clarity and low yellow index.
Electrical and Electronics
Switches, sockets, plugs, pages, cellular
phones, computer housings, etc require low
melt viscosity and high toughness
polycarbonate resins.
LG-DOW works with customers to produce
CALIBRE 301V-10, 301EP-20 and 301EP-30
polycarbonates achieving high clarity,
excellent flowability, high heat resistance and
high impact strength and UL94 V2 at 1.5 and
3.0 mm to satisfy their needs.
™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
张艾嘉个人资料Appliances
The two groups of CALIBRE polycarbonate
grades that are suitable for appliances
applications are:
•CALIBRE 201-5, 8, 10, 15 and 22. These
polycarbonates feature exceptional
practical impact resistance, high heat
resistance, and excellent clarity and are
suitable for use in fruit mixers /
processors, steam pots, control panels, iron
water tanks, etc.
•CALIBRE 301V-10, 301EP-22,and 301EP-30
achieve UL94 V2 (1.5 ~ 3.0 mm) ratings to
fit the needs of applications such as hair
dryers, CD-players, audio, vacuum
cleaners etc.
Automotive
CALIBRE polycarbonate not only satisfies the
requirements of lightweight and reliability in
continuous service but also offers design
flexibility and moldability for forming into
complex shapes.
The grade CALIBRE 303-10 complies with the
standards stipulated by the regulatory bodies.
For instance, it is accepted by the U.S.
Automotive Manufacturers Equipment
Compliance Agency (AMECA) for meeting the
three-year weathering test of the U.S. Society
of Automotive Engineers (SAE J576). This
test is applicable to optical lenses and
reflectors, made of plastics that are used on
motor vehicles.
In addition, it also complies with the U.S.
Federal Motor Vehicle Safety Standards
(FMVSS 571.108 ) which specifies minimum
levels of safety performance.
Packaging
The use of CALIBRE polycarbonate resins for plastic bottles, feed bottles, caps, cups,disposable carbons, etc. requires glass-like clarity and gloss. This complies with the US Food and Drug Administration (FDA) and European (EU) food contact regulations, and achieves high heat resistanc
e to withstand repeated wash cycles. The cost-effective resins include CALIBRE 201-5, 8, 10, 15 and 22 just fit the needs.
The branched resin CALIBRE 621-2 is tailor-made for the production of high-quality big water bottles with uniform wall thickness.The bottle features its taste neutrality,excellent cleanability and high impact resistance.
Sheets
CALIBRE 302-5, 7 and 10 resins have been widely used for extruded sheets. The resins achieve critical industry standards for outdoor weatherability and feature consistent ease of processing, excellent surface finish and outstanding impact performance.The branched resin CALIBRE 603-6 can be readily extruded on conventional equipment for multi- and twin-wall sheets.
Toys
CALIBRE 201-5, 10, 15 and 22 resins are most suitable for producing a variety of designs for toys. Due to the high clarity and high impact strength, the toys made from these resins are virtually unbreakable.
Most importantly, these resins comply with safety requirements stipulated by the FDA, EU food regulations and the requirements of the EU norm EN71 Part 3.
Housewares
CALIBRE polycarbonate has been widely used in the domestic, commercial and institutional catering markets.
CALIBRE 201-5, 8, 10, 15, 22 and 30 resins comply with the FDA and EU food regulations and offer benefits such as: high impact strength for products that is virtually unbreakable, excellent thermal and dimensional stability allowing repeated washing at high temperatures using hot air and water bath or re-heating of foodstuffs in microwave oven.
Lighting
CALIBRE polycarbonate is widely used in lighting industries for both outdoor and indoor applications.
CALIBRE 303-10, 15 and 22 with UV stabilizers are most suitable for outdoor applications such as linear
fluorescent luminaries, street lamps, traffic lights, and spotlights.
These grades can also be used in indoor applications with other grades to be
considered include CALIBRE 301EP-22 and 30which exhibit fast cycle time through excellent processability.
Eyewear
To protect human eyes, LG-DOW formulates polycarbonates to absorb the harmful ultraviolet (UV) radiations and to meet the requirements of Standards EN 1836:1997(280~780 nm) and ANSI Z87.1-1989 for ophthalmic applications.
The grades applicable for eyewear are:CALIBRE™ 302-5, 8 and 10. They reach 0%light transmittan
ce below the wavelength of 380 or 400 nm for the specific needs of lens,safety goggles and sunglasses.
Films and Diffuser Plates
To satisfy the stringent requirements of the extruded films (0.1~0.8 mm), LG-DOW works with customers to formulate CALIBRE 200-8,10 and 15 polycarbonate achieving ultra-clean conditions with the state-of-the-art filter technology and packaging, high purity and high toughness.
300
400
500
600
700
1007550250
% Transmittance
Wavelength (nm)
3
™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Attributes
The ability of CALIBRE™polycarbonate resins to provide unique properties attributes to its molecular structure.
The unique balance of toughness, heat resistance and clarity is the key factor that makes CALIBRE polycarbonate the right choice for a multitude of applications. Precise control of chemical processing and state-of-the-art compounding technology allows LG-DOW to offer many different CALIBRE resins.Molecular Structure
The physical and mechanical properties
increase with increasing molecular weight.
However, processing becomes more difficult
as the melt flow rate decreases. Thus,
customers must choose between optimum
physical and mechanical properties and high
flow characteristics that permit the filling of
complex molds.
Tensile strength is a measure of the force
required to pull it apart, and of the amount of
stretching it can withstand before breaking.
CALIBRE polycarbonate is among the toughest
旋风小子主题曲
engineering thermoplastics suitable for
various applications that require high impact
strength.
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50000
40000
30000
20000
10000
Molecular Weight, a.m.u.
Melt Flow Rate g/10 min (300 ºC/1.2 kg)
Impact Strength
CALIBRE resins offer excellent impact
resistance. At room temperature, CALIBRE
resins do not show brittle behavior but sharp
notches, or thick sections may cause a
decrease in impact strength at low
temperature. For applications requiring
optimum impact properties, a low melt flow
rate (MFR) material would generally be the
best choice. For applications where low
temperature impact is not crucial, but
optimum processing is a must, a higher MFR
material would be the best selection.
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1200
1000
800
600
400
Notched Izod Impact (J/m)
Melt Flow Rate g/10 min (300 ºC/1.2 kg)
-40-30-20-100102030
Notched Izod Impact (J/m)
Temperature ºC
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1200
900
600
300
Notched Izod Impact (J/m)
Thickness (mm)
-4004080
80
70
60
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40
Tensile Yield Strength (MPa)
Temperature ºC
4
™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
Optical Properties
The excellent optical properties of CALIBRE polycarbonate allows the use in applications requiring good transparency. CALIBRE resins exhibit water-white clarity with visible light transmission of 87~91% depending on its thickness and base colors (Nat, WW, SWW
or CB).
Chemical Resistance
The chemical resistance of polycarbonates is dependent on overall stress, which is a combination of part design, fabrication conditions and chemical and physical environments.
Thermal Properties
A distinguishing characteristic of CALIBRE™resins is high heat resistance, i.e. acceptable soften characteristic at elevated temperatures.They are ideal for many parts requiring high thermal stability because of its high heat defection temperature and a high vicat softening point.
20406080
Temperature ºC Melt Flow Rate g/10 min (300 ºC/1.2 kg)
Electrical Properties
Over a wide temperature range, CALIBRE resins exhibit excellent electrical insulation properties that are not significantly affected by moisture or MFR to make it desirable for electrical and electronic applications.
Quality
At every stage of production, LG-DOW ensures identical CALIBRE resins with dependable properties and precision张翰和郑爽最新消息
performance. Although Yeosu plant is not ISO certified, LG-DOW follows Dow’s practice to implement a comprehensive quality assurance management system.
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Transmittance Thickness (mm)
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Good
Little change, CW<1% and CTs<5%Fair Long exposure, CW>1% or CTs>5%Poor Short exposure, CW>1% and CTs>5%CW: Change in weight CTs:
Change in tensile strength
™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow
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