Teflon® 701-N
PTFE granular moulding resin
Typical applications
High-quality and electrical grade skived tape,
billets and other basic shapes, and as a base
resin for filled compounds.
Description
Teflon® 701-N is one of DuPont’s PTFE granular
resins for compression moulding.
It offers the excellent combination of properties
characteristic of Teflon® fluoropolymer
resins: non-ageing characteristics, chemical
inertness, exceptional dielectric properties,
heat resistance, toughness and flexibility, low
coefficient of friction, non-stick characteristics,
negligible moisture absorption and excellent
weather resistance.
Teflon® 701-N is a fine-cut high-property
resin of medium apparent density. Because of
its small particle size, this resin can be
moulded into parts with excellent mechanical
and dielectric properties and is also recommended
as a base resin for filled compositions.
Teflon® 701-N meets the requirements of
ASTM D 4894-91a, type II.
Processing
Teflon® 701-N may be converted by compression
moulding techniques. A preform is made
at room temperature at the recommended
pressure of 14 MPa and subsequently freesintered
at 365 to 380° C.
Lower preform pressure down to 10 MPa
may be used, but may result in lower enduse
properties of the finished parts. Higher
preform pressures up to 35 MPa have been
used successfully. As with all resins, mould
shrinkage and tensile properties vary with
preform pressure, sintering conditions and
geometry of the part.
Safety precautions
Industrial experience has proven that adequate
ventilation, in properly maintained processing
and handling areas, will eliminate known
hazards to personnel. Resin containers should
be opened and used in well-ventilated areas.
Equipment used to process at melt temperatures
should be provided with local exhaust
ventilation to completely remove all fumes
and vapours from the processing area. In
addition, care should be exercised to avoid the
contamination of cigarettes and other forms
of smoking tobacco when using fluoropolymer
resins. Before using fluoropolymer resins,
read the Material Safety Data Sheet (MSDS)
and the detailed information in “Guide for the
safe handling of Fluoropolymer Resins” published
by APME. Copies can be obtained
through your local DuPont representative.
Packaging
Teflon® 701-N is packaged in 25 kg plastic
drums. For convenient shipment, orders of
200 kg (8 drums/one full pallet) are recommended.
® DuPont registered trademark

铁氟龙高性能特种涂料是以聚四氟乙烯为基体树脂的氟涂料，英文名称为Teflon，因为发音的缘故，通常又被称之为铁氟龙、铁富龙、特富龙、特氟隆等等（皆为Teflon 的译音）。经过特氟龙涂装后，具有以下特性：

1、不粘性：几乎所有物质都不与特氟龙涂膜粘合。很薄的膜也显示出很好的不粘附性能。 

2、耐热性：特氟龙涂膜具有优良的耐热和耐低温特性。短时间可耐高温到300℃，一般在240℃~260℃之间可连续使用，具有显著的热稳定性，它可以在冷冻温度下工作而不脆化，在高温下不融化。 

3、滑动性：特氟龙涂膜有较低的摩擦系数。负载滑动时摩擦系数产生变化，但数值仅在0.05-0.15之间。 

4、抗湿性：特氟龙涂膜表面不沾水和油质，生产操作时也不易沾溶液，如粘有少量污垢，简单擦拭即可清除。停机时间短，节省工时并能提高工作效率。 

5、耐磨损性：在高负载下，具有优良的耐磨性能。在一定的负载下，具备耐磨损和不粘附的双重优点。 

6、耐腐蚀性：特氟龙几乎不受药品侵蚀，可以保护零件免于遭受任何种类的化学腐蚀。 

特氟龙PTFE： 

PTFE（聚四氟乙烯）不粘涂料可以在260℃连续使用，具有最高使用温度290-320℃，极低的摩擦系数、良好的耐磨性以及极好的化学稳定性。不能注塑，可以挤压成型或做涂料。

应用PTFE独特的性能使其在化工、石油、纺织、食品、造纸、医学、电子和机械等工业和海洋作业领域都有着广泛的应用。