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INTRODUCTION

In 1839 Charles Goodyear added sulfur to raw rubber and became the world's first compounder. Since then compounders have added a staggering number of substances to rubber to improve performance, lower cost or both. Over time, certain classes of materials have become standard ingredients in rubber compounds. Fillers, oils, activators, antidegradants, vulcanizing agents and accelerators are present in nearly all rubber formulations.
Within each of these classes there are hundreds, if not thousands, of materials in use..

 
RUBBER ACCELERATORS
MBT (M)                        2-Mercaptobenzothiazole


Molecular Formula   C7 H5 NS2
Molecular       167.26
Technical specification   GB/T 11407-2003

Properties : Grayish-white or light yellow powder with slightly foul odour and bitter taste, non poisionous. Specific gravity: 1.42-1.52. Melting point : over 170o C. Easily soluble in ethyl acetone, acetone, dilute solution of  sodium hydroxide and sodium carbonate, soluble in ethyl alcohol,  not easily soluble  in benzene, insoluble in water and gasoline,

Application:  Accelerator M is a hemi-ultra accelerator of NR and SR, has wide range of vulcanization. It can be applied alone and together with dithicarbamates, thiuram type, guanidines and other alkaline accelerators. Mainly used in manufacture of rubber tires, belts, rubber shoes and other technical rubber goods.

Package :  In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.

Storage : Stable indefinitely under normal storage conditions.
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MBTS (DM)      Dibenzothiazole Disulfide


Molecular Formulas        C14 H8 N2 S4
Molecular Weight   332.50
Technical specification  GB/T11408-2003

Properties : White of light yellow powder with slightly bitter taste, nonpoisonous. Specific gravity :  1.45-1.54. Melting point: over 160 o C. Soluble in chloroform, slightly soluble in benzene, ethyl alcohol and carbon tetrachloride, insoluble in gasoline,  water and ethyl acetate. Stable in storage.

Application :  The product is  an accelerator of NR and SR. It has level and middle cure rate and higher  Vulcanization temperature. It operates safely, disperses easily and does not contaminate,  it is aging resistant. Mainly used in manufacture of tires, rubber goods. Accelerator MBTS works as plasticizer and delayed action activator in polychoroprene.

Package : In Knitted bag lined with plastic  bag or kraft paper bag. 20kgs/bag or at buyer’s request.

Storage : Stable indefinitely under normal storage conditions.
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CBS(CZ)   N-Cyclohexy-2-benzothiazole sulfonamide


Molecular Formula         C13 H16 N2 S2
Molecular weight   264.42
Technical specification  HG2096-91

Properties :Greyish white or light-yellow powder with slightly odour and nonpoisonous.

Specific gravity :  1.31-1.34. Melting point :  over 96O C. Soluble in benzene, methylbenzene, chloroform, carbon disulfide, carbon tetrachloride, methylene chloride, acetone and ethyl acetate; not easily soluble in ethyl alcohol; insoluble in water,  dilute acid, dilute alkali and gasoline.

Application :  CBS(CZ) is an accelerator with high activity and greatly delayed action, has high anti-scorching quality, processing safety and short cure time. Its activity can be reinforced by thiuram  and dithiocarbamate type alkaline accelerators. Mainly used in manufacture of  tires, rubber shoes, cable and other technical rubber goods.

Package : In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at byer’s request.

Stoarge : It may be descendently decomposed during storage, so should be kept in low temperature off heat and moisture.
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ETU (Na-22)    Ethylene thiourea

Molecular Formula         C3 H6 N2 S
Molecular Weight   102.17
Technical specification  HG/T2342-92
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MBS (NOBS)      N-Oxydiethylent-2-benzothiazole sulfonamide


Molecular Formula           C11 H12 N2 S2 O
Molecular Weight            253.35
Technical specification    GB8829-88

Properties : Light yellow or orange colour pellet with a little amine taste. Nonppoisonous. Melting point : over 78o  C. Specific gravity : 1.34-1.40. Soluble in benzene, ethyl actate, methyl alcohol; easily soluble in acetone, methyl benzene, carbon tetrachcloride; slightly soluble in ethanol;  insoluble in water, dilute acid and dilute alkali. It will gradually resolve when it is heated over 60o C.

Application : NOBS is a vulcanization acceleratior with delayed action, short cure time, has high anti-scorching quality and processing safety. It is suitable for NR and SR. Mainly used in manufacture of tires, rubber tubes, rubber shoes, rubberizer tape and other technical rubber goods.

Package : In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.

Storage : May be decomposed during storage, so should be kept off moisture sand heat. The period of stability in storage is six months.
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TBBS(NS) N-Tertiarybutyl-2-benzothiazole sulfonamide


Molecular Formula  C11 H14 N2 S2
Molecular Weight   238
Technical specification  HG/T 2744-96

Properties : Its industrial product is milk-white or light yellowish brown powder,  Specific gravity :  1.26-1.32. Soluble in benzene, chloroform, carbon disulfide, acetone, methanol, ethanol, but hard in gasoline, insoluble in water, dilute acid and dilute alkali.

Application : NS is a Vulcanization accelerator with delayed action, short cure time, has high anti-scorching quality, processing safety. Widely used in all sorts of rubber products and tires, especially the meridian tires. The product is excellent delayed accelerator with more delayed action and great curing rate and so on.

Package : In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.

Storage : Keep off moisture or heat and away from fire. The period of stability in storage is half a year.
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DCBS (DZ)       N,N’-Dicyclohexyl-2-benzothiazole sulfonamide


Molecular Formula         C19 H26 N2 S2
Molecular Wight            346.58
Technical specification  Q/SHY001-2000

Properties : Light yellow or brown-yellow powder. Specific gravity : 1.26-1.32. Melting point : over 96o C. Insoluble in water, soluble in gasoline, easily soluble in  ethanol, aether, acetone, benzene, toluene, methylene chloride, carbon tetrachloride, ethyl acetate and other organic dissolvent.

Application : The product possess 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 tires, rubber belts and shock absorber.

Package: In knitted bag lined with plastic bag or kraft paper bag. 25kgs/ bag or at buyer’s request.

Storage : It may be descendently decomposed during storage, so should be kept in low temperature off heat and moisture. The period of stability in storage is half a year.
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TMTD (TT)      Tetramethyl  thiuram disulfide


Molecular Formula          C6 H12 N2 S4
Molecular Weight    240.41
Technical specification    HG/T2334-92

Properties :  White or light grayish powder or pellet. Specific gravity: 1.29. Soluble in benzene,  acetone, chloroform, carbon disulfide. Insluble in water and gasoline.

Application : TMTD is used as a Vulcanization  accelerator in the rubber industry, used in NR and SR. Mainly used in the  manufacture of tires, rubber shoes, cable etc. Used as germicide and insecticide in agriculture, also as lubricant additive.

Package : In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.

Storage : Stable indefinitely under normal storage conditions.
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TMTM (TS) Tetramethyl thiuram monosulfide


Molecular Formula     C6 H12 N2 S3
Molecular Weight      208.10

Properties :  Specific gravity 1.37, without foul odour, nonpoisonous, soluble in benzene, acetone, and so on; Slightly in ethylalcohol; insoluble in gasoline and water.

Application :Mainly used in tires, rubber shoes, rubber tube, cable, rubber belts, and so on.

Package :In Knitted bag lined with plastic bag or kraft paper bag.25kgs/bag or at buyer’s request. Storage : Keep off moisture and heating, away from the fire.
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TETD    Tetraethylthiuramdisulfide


Molecular Formula       C20 H26 O2 S
Molecular Weight  296.55

Properties : Without foul odour, taste and poison. Specific gravity: 1.17-1.30. Soluble in acetone, carbon disulfine, chloroform; Slightly soluble in ethanol and gasoline; insoluble in water, dilute acid and dilute alkali.

Application : The ultra accelerator is suitable for natural and synthetic rubbers, for instance, polybutadiene styrene, polybutadiene  acrylonitrile, rubber cloth, rubber shoes and etc.

Package : In Knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.


Storage : Stable indefinitely under normal storage conditions.
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DPG (D)            Diphenyl guanidine


Molecular Formula           C13 H13 N3
Molecular Weight     211.27
Technical specification    HG/T2342-92

Properties :  Without odour and poison. Specific gravity : 1.08-1.19. Easily soluble in carbon tetrachloride; Insoluble in water and gasoline.

Application : Generally used for natual and synthetic rubbers. Mainly used in manufacture of  tires,  rubber boards, rubber shoes and other technical rubber goods.

Package :In knitted bag lined with plastic bag or kraft paper bag. 20kgs, 25kgs/bag or at buyer’s request. Storage :  Stable indefinitely under normal storage  conditions.
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ZDBC (BZ)     Zinc Dibutyldithiocarbamate


Molecular Formula        C18 H36 N2 S4  -Zn
Molecular Weight  474.1

Properties : White or light yellow powders, relative density is 1.24g/cm3, soluble in disulfide, benzene, chloroform, insoluble in water. Storage is stable.

Application : A fast curing accelerator for natural, synthetic rubber and latex, especially suitable for butyl rubber, EPDM rubber and latex. Non toxic, inodorous, it can be used as white or colour and transparent rubber manufactures.

Package : In Knitted bag lined with plastic bag or kraft paper  bag. 25kgs/bag or at buyer’s request.

Storage : Stable indefinitely under normal storage conditions.
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ZDEC (EZ)    Zinc Diethyl Dithiocarbamate


Molecular Formula       C10 H20 N2 S4  -Zn
Molecular Weight 361.9

Properties : White or light yellow powders, soluble in 1%NaOH solution, carbon disulfide, bezene, chloroform, insoluble in  gasoline.

Application : A fast curing accelerator for natural, synthetic rubber and latex,  especially suitable for butyl rubber, EPDM rubber and latex. Non-toxic, inodorous, it can be used as white or colour and transparent rubber manufactures.

Package : n Knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.

Storage : Stable indefinitely under normal storage conditions.

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Rubber ANTI-OXIDANTS
RD (TMQ)       Polymerized 2,2,4-trimrthyl-1-1,2-dihydroquinoline


Molecular Formula         (C12 H15 N)N  n = 3-4
Molecular Weight    (173.26)n
Technical Specification  GB8826-88

Properties : This product in brown piece of amber, specific gravity: 1.05. Soluble in benzene, chloroform, carbon disulfide and acetone, but not soluble  in water, it’s toxicity is light, pollution is low, fine solution with rubber. This product is combustible, when  storing and transporting, always pay attention to fireproof and  dampproof.

Application : It can be widely used in the manufacture of tires, rubber shoes, rubber belts, wire cab le and other rubber products.

Package : In Knitted bag lined with plastic bag or kraft paper bag. 25kgs/vag or at buyer’s request.


Storage : Stable indefinitely under normal storage conditions.

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6PPD N-(1,3-dimethylbutyl)-N’ –phenyl-p-phenylenediamine


Application :    Mainly used in manufacture of  tyres, rubber, rubber shoes and other rubber products.

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SP, SP-C, SP-W  Styrenated Phenols


Molecular Formula           C22 H22 O
Molecular Weight            322
Technical Specification   Q/29SYH001-89

Properties :  SP is a light yellow transparent stickiness liquid,
SP-C,  SP-W are grayish-white powder which is adsorbed on mineral stuffing by SP and they are dissolved in ethanol, acetone, benzene, aether and other organic and other organic dissolvent, insoluble in water,

Application: The article is a non-polluted anti-ageing agent. It has a good protective effect for heat proof ageing, light-resistant, etc. And used in natural rubber , and other light –color rubber products with the features of undiscolor, no pollution and nonspray frost and easy dispersing. The quantity of used for SP is 0.5-3.0 portion. It can be used as rubber latex after emulsification. The cost is lower. The function of SP-C, SP-W is the same as SP. SP-C, SP-W are antioxidant of polyfomaldehgde and polyolefine in plastic industry. The quantity of use is 0.01-0.5 portion.

Package : In knitted bag lined with plastic bag or kraft paper bag. 25kgs/bag or at buyer’s request.


 Storage: Stable indefinitely under normal storage conditions.

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IPPD            N-isopropyl-N`-phenyl-p-phenylenediamine

 

Application : Intermediate of rubber antioxidant and dye industries.

Package : 200 kg net, iron drum

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ADPA           p-aminodiphenylamine

 

Application : Intermediate of rubber antioxidant and dye industries.

Package : 200 kg net, iron drum

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Rubber Antiscorching Agent

CTP (PVI)         N-(cyclhexyl thio) phthalimide


Molecular Formula           C14H15O2NS

Molecular Weight             261.33

Technical Specification    Q/SHY002-2000

Properties :It is white or yellow crystalline. It can be dissolved in acetone, benzene, toluene, ethyl ether and ethyl acetate as well as warm carbon tetra chloride, ethyl alcohol and heptane. It also can be slightly dissolved in gasoline, but not in kerosene and water.

Application : The product may be used in natural rubber and synthetic rubber. It may protect effectively the rubber material from scorching during Processing, So that to make it possible for extruder and calendar to be running at a high temperature and high speed and improve the production capacity of vulcanizer. The product also can improve the storage stabilization of the rubber material, protect natural vulcanization during storage. It has reclaimation function for rubber material, which bearing high heating or with dangers of scorching.

Package : In knitted bag lined plastic bag or kraft paper bag. 20 kgs/bag or at buyer’s request.

View Specifications
 
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