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【】 PTFE 【】
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【】 PTFE 【】
♦ Teflon & PTFE Rod
PTFE Rod :
Extruded PTFE Rod, Molded PTFE Rod, Filled PTFE Rod. PTFE Rod is
available in both virgin grades and reprocessed for less
demanding applications. Surf Technologies PTFE rods in all
standard sizes from 2mm diameter up to 400mm in diameter. Rod is
inventoried in twelve foot lengths so it can be cut into 200mm
up to 2000mm lengths. the rods is generally used as machining
stock for all kinds of chemical, electrical and mechanical
components where the outstanding performance characteristics of
Rods are required. Various fillers are available to modify the
properties of PTFE ( Teflon ) to meet application requirements.
Fluoro-Plastics stocks huge inventories so that same day
shipment of most standard sizes is available.
♦ Teflon & PTFE Sheet
PTFE Sheet : Skived PTFE Sheet, Molded
PTFE Sheet, Filled PTFE Sheet. the
PTFE Sheet can be made in any thickness from 0.2mm up to 100mm.
PTFE Sheets technology makes it. possible to make in-between
sizes. the Teflon Sheets is ideal as a slide surface, for chute
liners, other kinds of liners, or for cutting or stamping into
gaskets (asbestos substitute) and diaphragms, including complex
stamped gasket configurations. It comes in sheets from 300mm
square to rolls 1500mm wide. Standard sizes are 1200mm square,
1000mm square, Unless otherwise specified, the edges are not
trimmed and all plate is oversized so that blanks can be cut
without significant kerf waste. All material is white. Sheet is
ideal for cutting into bIanks for machining into smaller parts.
♦ Teflon & PTFE Tube
PTFE Tube : Extruded PTFE Tube, Molded
PTFE Tube, Filled PTFE Tube. PTFE Tubing
is a leader in the manufacture of heavy walled tube, both in
standard sizes. the PTFE tube is used in fluid handling
applications for high temperature acids and caustics or where
contamination is an issue, such as in wire braided hose. In
applications where PTFE 's excellent insulating properties are
needed heavy walled tube is the shape of choice, e.g. in spark
plugs for stationary generators, coaxial spacers, connectors.
Because drilling a precise hole in longer PTFE ( Teflon )
lengths is impossible, extruded tube is the best way to insure
uniform wall thickness throughout the length of the tube.
Various fillers are available to modify the properties of PTFE (
Teflon ) to meet application requirements.
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♦ Nylon Rod & Sheet
Nylon Rod & Sheet : Nylon Rod, Nylon
Sheet. Nylon is a thermoplastic, silky material, first used
commercially in a nylon-bristled toothbrush (1938), followed
more famously by women's stockings ("nylons"; 1940). It is made
of repeating units linked by amide bonds and is frequently
referred to as polyamide (PA). Nylon was the first commercially
successful synthetic polymer. There are two common methods of
making nylon for fiber applications. In one approach, molecules
with an acid (-COOH) group on each end are reacted with
molecules containing amine (-NH2) groups on each end. The
resulting nylon is named on the basis of the number of carbon
atoms separating the two acid groups and the two amines. These
are formed into monomers of intermediate molecular weight, which
are then reacted to form long polymer chains.
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♦
Delrin & Acetal Rod & Sheet
Delrin & Acetal Rod & Sheet : Delrin &
Acetal Rod, Delrin & Acetal Sheet. Polyoxymethylene (POM), also
known as acetal,[1] polyacetal, and polyformaldehyde, is an
engineering thermoplastic used in precision parts that require
high stiffness, low friction and excellent dimensional
stability. It was discovered by Hermann Staudinger, a German
chemist who received the 1953 Nobel Prize in Chemistry. He
studied the polymerization and structure of POM in the 1920s to
research the theory of macromolecules, which he characterized as
polymers. Due to initial problems with thermal stability, POM
was not commercialized. First synthesized by DuPont research
chemists around 1952, the company filed for patent protection of
the homopolymer in 1956 and completed construction of a plant to
produce Delrin at Parkersburg, West Virginia, in 1960. Celanese
completed its study on a copolymer in 1960, producing Celcon in
1962 and Hostaform in 1963 in Kelsterbach, Germany, under a
limited partnership with Ticona.
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♦ Polyurethane Rod & Sheet
Polyurethane rod & Sheet : Polyurethane
rod, Polyurethane Sheet. Polyurethane with very good chemic
erode resistant, impregnant resistant, ozone resistant,
radiation resistant, aging resistant, hydrolyze resistant. And
high tear resistant, high impact resistant, high bend strength
and low compression set etc. The abrasion resistant is 5
multiple more than pure natural rubber, and the oil resistant is
3-5 multiple more than NBR rubber, and have high elasticity 65%
with prominent compression resistant at high temperature. With
broad hardness range on 15-98 Shore A, very good viscidity with
metal material, Polyurethane Rod is a new macromolecule material
with fast evolutive now. Apply to military, mine, oil field,
chemical, printing, punch, paper making, spin, auto and etc seal
industrial.
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♦ HDPE & UHMW Rod & Sheet
UHMWPE is polyethylene with a
molecular weight numbering in the millions, usually between 3.1
and 5.67 million. The high molecular weight makes it a very
tough material, but results in less efficient packing of the
chains into the crystal structure as evidenced by densities of
less than high density polyethylene (for example, 0.930–0.935
g/cm3). UHMWPE can be made through any catalyst technology,
although Ziegler catalysts are most common. Because of its
outstanding toughness and its cut, wear and excellent chemical
resistance, UHMWPE is used in a diverse range of applications.
These include can and bottle handling machine parts, moving
parts on weaving machines, bearings, gears, artificial joints,
edge protection on ice rinks and butchers' chopping boards. It
competes with aramid in bulletproof vests, under the tradenames
Spectra and Dyneema, and is commonly used for the construction
of articular portions of implants used for hip and knee
replacements.
Polyethylene Rod & Sheet : Polyethylene
Rod, Polyethylene Sheet. HDPE is defined by a density of greater
or equal to 0.941 g/cm3. HDPE has a low degree of branching and
thus stronger intermolecular forces and tensile strength. HDPE
can be produced by chromium/silica catalysts, Ziegler-Natta
catalysts or metallocene catalysts. The lack of branching is
ensured by an appropriate choice of catalyst (for example,
chromium catalysts or Ziegler-Natta catalysts) and reaction
conditions. HDPE is used in products and packaging such as milk
jugs, detergent bottles, margarine tubs, garbage containers and
water pipes. One third of all toys are manufactured from HDPE.
In 2007 the global HDPE consumption reached a volume of more
than 30 million tons.
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【】 PTFE 【】
