详情
Antioxidant RD
Technical indicators:
Project
Index
Exterior
Amber sheet
Softening point ℃
*****0
Heating loss %
0.*0
Ash%
0.*0
Uses:
Rubber antioxidant , widely used in the manufacture of tires,
rubber shoes, hose, tape , wires, cables and other rubber
products.
Properties:
Specific gravity of 1.*5 . Soluble in benzene , chloroform , carbon
disulfide and acetone , insoluble in water . Low toxicity , low
pollution , good compatibility with the rubber . Can burn, storage
and transportation of fire and moisture .
Packaging:
PP woven bag or kraft paper bag lined with plastic film bag, net
*5kg / bag.
English name] Antioxidant RD; poly (1,*-dihydro*2
,2,*-trimethyl-quinoline)
[ Properties ] density 1.*8 ; melting point of ****4 ° C; boiling
point > **5 ° C; -soluble [Character]
Pale yellow to amber powder or flakes. Non-toxic.
[ Softening ]
*4 ℃ or more.
Issolved
Insoluble in water, soluble in benzene , chloroform, acetone and
carbon disulfide. Slightly soluble in petroleum hydrocarbons.
[Use]
Mainly used for rubber antioxidant . Suitable for natural rubber
and nitrile , styrene-butadiene , ethylene-propylene , and neoprene
synthetic rubber. Protection against heat and oxygen caused by
aging effect is excellent, but the protective effect of aging on
the flex poor . AW and antioxidant required phenylenediamines or
with the use of antioxidants . Is the manufacture of tires , hoses,
tape, wire and other rubber products commonly used antioxidant.
Since the rubber antioxidant RD good compatibility , when the
discharge amount is still up to 5 parts , it is possible to
increase the amount of antioxidant and improved aging properties of
the rubber compound , under dynamic conditions used in rubber
products such as tires a tread band and transport , it may be with
or AW antioxidant ***0NA .
Preparation or sources ]
Aniline and acetone as raw materials and toluene as a dehydrating
agent , hydrochloric acid as a catalyst in the polycondensation
temperature of ******0 ℃ , neutralized and washed with water ,
atmospheric distillation , vacuum distillation , slicing ,
packaging and derived products.
Appearance: Amber to brown flake Softening point :*****0 ℃, Heating
loss : ≤ 0.5%, Ash : ≤ 0.5% Main characteristics and applications -
have antioxidant effects , suitable for almost all types of
applications in a variety of situations elastomer, a wide range of
temperatures apply. - Duration of the rubber of the rubber compound
having a long-term heat aging effect. - Heavy metal compound can
prevent oxidation - a high molecular weight , slower migration of
the plastic material matrix , not blooming . Recipe Data - In the
application of the adhesive , RD primary antioxidant in an amount
between 0.5 to 3.0 parts . In the light products , if the color is
not allowed , the amount should not exceed 0.5 parts . - RD
generally does not affect the curing properties of natural rubber
and synthetic rubber , but it will reduce the storage stability of
neoprene . If the situation requires the use of ozone- resistant
and anti flex fatigue properties , RD ***0 , and should be used . -
Antioxidant Protection 0.**3.0 parts RD - Universal Protection
against degradation 0.*- 1.0 parts RD *1.0 parts ***0 - High
Performance Protection 1.**2.0 parts RD *1.**3.0 parts ***0 - EPDM
peroxide vulcanization and NBR rubber compound using RD excellent
heat resistance can be obtained , on the crosslinking density
slightly . In such applications, a typical amount of 0.*5 to 2.0 RD
parts . - In latex applications, if available allowing a slight
coloring powder dispersion RD , dry amount of 0.5 to 2.0 parts .
Packaging and storage conditions of plastic woven bag lined with
polyethylene plastic bag ( or according to the requirements of
foreign packaging ) , net weight *5 kg . RD should be stored in a
cool, dry , well-ventilated place. Packaged product to direct
sunlight.
