Vulcanization accelerator NOBS (MBS)
Chemical name:
Specification:
Grade Grade I Grade II
Specification
Item
Appearance light yellow or orange yellow grain
Initial melting
point 80℃min 78℃min
Heating loss 0.5%
max 0.5% max
Ash 0.3%
max 0.4% max
Properties:A little ammonia
odour,nonpoisonous.Specific gravity:1.34-1.40.Soluble in benzene, ethyl
acetate, methyl alcohol; easily soluble in acetone, methyl benzene, carbon
tetrachloride; slightly soluble in ethanol; insoluble in water, dilute acid and
dilute alkali.
Application: The product is
an excellent delayed accelerator. Mainly used in manufacture of tires, for
example, thick section pressed products, rubber shoes and rubber tubes,
specially suitable for synthetic rubber mixture with fine grain furnace carbon
black.
Package: 30kgs.net in
polyethylene knitted bag lined with polyethylene bag and craft paper bag
inside.
Storage: It may be
descendently decomposed during storage, so should be kept in low temperature
off heat and moisture. The period of storage stability is six months.
vulcanization accelerator TMTD
Chemical name: Tetraethyl thrum disulfide
specification:
|
Specification Item |
Grade I Grade
II |
|
|
Appearance |
White or light grayish powder, grain |
|
|
Initial melting
point |
142.0℃min |
140.0℃min |
|
Heating loss |
0.40% max |
0.50% max |
|
Ash |
0.30% max |
0.40% max |
|
Residue on 100 mesh |
0.0% max |
0.1% max |
Properties: Without odor
and poison. Stimulate to the skin and the respiratory tract. Specific gravity:
1.29.Soluble in chlorlfom acetone, methylene chloride, benzene; not easily
soluble in carbon tetrachloride, ethyl alcohol, ethyl acetate; insoluble in
water and gasoline.
Application: The ultra
accelerator has a higher critical temperature, suitable for natural and
synthetic rubber, can be used as vulcanizator too. Mainly used for tires,
rubber shoes, cable, and transparent, white and colored technical rubber goods.
Package: 20kgs.net in
polyethylene knitted bag lined with polyethylene bag and craft paper bag
inside.
Storage: stable
indefinitely under normal storage conditions.
. Vulcanization
accelerator ETU (Na-22)
Chemical name Ethylene thiourea
Specification:
|
Specification Item |
Grade Ⅰ Grade ⅡI |
|
|
Appearance |
White crystalline
powder |
|
|
Initial melting
point |
193.0℃min |
192.0℃min |
|
Heating loss |
0.30% max |
0.40% max |
|
Ash |
0.30% max |
0.30% max |
|
Residue on 100 mesh |
0.1% max |
0.1% max |
Properties: Bitter taste,
but nonpoisonous. Specific gravity: 1.43.Soluble in ethanol; not easily soluble
in acetone, toluene and gasoline; slightly soluble in water.
Application: Suitable for
polychlorlprene rubber. Vulcanize
posses good properties. Especially
suitable for 54-1(cw) and general purpose type GU-polychloroprene
rubber.
Package: 20kgs.net in
polyethylene knitted bag lined with polyethylene bag and craft paper bag
inside.
Storage: Stable indefinitely
under normal storage conditions.
Vulcanization accelerator DZ (DCBS)
Chemical name: N, N-Dicyclohexy1-2-benzothiazole sulfonamide
Specification:
|
Specification Item |
Top grade Grade I |
|
|
Appearance |
cream colored to
light brown fine granule or grayish white powder |
|
|
Initial melting
point |
96.0℃min |
94.0℃min |
|
Heating loss |
0.4% max |
0.5% max |
|
Ash |
0.3% max |
0.4% max |
|
Free MBTS |
0.5% max |
0.5% max |
Properties: Without foul
odor, but with bitter taste, easily soluble in benzene, carbon tetrachloride,
ethylene chloride; soluble in gasoline, ethyl acetate, ethanol, acetone;
insoluble in water.
Application: The product
posses the best scorching quality of sulfonamide type accelerators. Its
scorching quality in natural rubber is better than DIBS, the operating safety
is much better. Mainly used in manufacture of tired, rubber belts and shock
absorber.
Package: 25kgs.net in
polyethylene knitted bag lined with polyethylene bag and craft paper bag
inside.
Storage: It may be
descendently decomposed during storage,so should be kept in low temperature off
heat and moisture. The period of storage stability is six months.