Vulcanizing Agent For Rubber

Vulcanizing Agent For Rubber

Nitrosamine-free vulcanizing agent for rubber,alkylphenol disulfide polymer/poly-tert-butylphenoldisulfide/CAS NO 60303-68-6,amylphenol disulfide polymer/poly-tert-amylphenoldisulfide/CAS NO 68555-98-6;sulfur donors in EV and semi-EV type cure systems

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Nitrosamine-free vulcanizing agent for rubber,alkylphenol disulfide polymer/poly-tert-butylphenoldisulfide/CAS NO 60303-68-6,amylphenol disulfide polymer/poly-tert-amylphenoldisulfide/CAS NO 68555-98-6;sulfur donors in EV and semi-EV type cure systems

 

We produce alkyphenol disulfide polymers with 6 different specification choices.they are mainly used as sulfur donors in EV and semi-EV type cure systems to completely or partialy replace sulfur and thiuram and DTDM.They can be used in the innerliner, chafer, bead apex, sidewalls, and tread.

 

Product Name:

Vulcanizing agent for Rubber

 

Chemical Name:

poly-tert-butylphenoldisulfide,poly-tert-amylphenoldisulfide

 

Composition:

Vulcanizing agent TB7:Para-tert-butylphenol disulfide polymer

Vulcanizing agent TB710:Para-tert-butylphenol disulfide polymer+stearic acid

Vulcanizing agent V2: Para-tert-amylphenol disulfide polymer

Vulcanizing agent V3: Para-tert-amylphenol disulfide polymer+sulfur

Vulcanizing agent V5: Para-tert-amylphenol disulfide polymer+silica

Vulcanizing agent 710: Para-tert-amylphenol disulfide polymer+stearic acid

 

 

 

CAS NO.:60303-68-6,68555-98-6

 

Synonym:

Alkylphenol disulfide polymer

Amylphenol disulfide polymer

Poly-tert-butylphenol disulfide

poly-tert-amylphenoldisulfide

Poly-alkylphenol disulfide

Alkylphenol oligmer

Amylpheol oligmer

Para-tert-butylphenol disulfide polymer

Para-tert-amylphenol disulfide polymer

Tert-butylphenol disulfide polymer

Mixture of para-tert-butylphenol disulfide polymer and stearic acid

Alkylphenol disulfide polymer sulfur donor

Curing Resin

Vulcanizing agent

Specification:

Vulcanizing agent TB7

Item

Standard

Test Way

Appearance

Yellow to light brown pastilles or powder

Visual

Sulfur content,   %

29.5-31.5

Combustion

Softening   point, ℃

95-115

Ring & Ball

 

 

Vulcanizing agent TB710

Item

Standard

Test Way

Appearance

brown pastilles or powder

Visual

Sulfur content,   %

26.4-28.4

Combustion

Softening   point, ℃

75-95

Ring & Ball

Stearic acid content,%

9.0-11.0

FTIR

 

 

 

Vulcanizing agent V2

Item

Standard

Test Way

Appearance

Brown tacky solid

Visual

Sulfur content,   %

21.8~23.8

Combustion

Softening   point, ℃

50~60

Ring & Ball

 

Vulcanizing agent V3

Item

Standard

Test Way

Appearance

brown pastilles or powder

Visual

Sulfur content,   %

27~29

Combustion

Softening   point, ℃

78-93

Ring & Ball

 

Vulcanizing agent V5

Item

Standard

Test Way

Appearance

brown pastilles or powder

Visual

Sulfur content,   %

18.5-21.0

Combustion

 

Vulcanizing agent 710

Item

Standard

Test Way

Appearance

brown pastilles or powder

Visual

Sulfur content,   %

26.4-28.4

Combustion

Softening   point, ℃

75-90

Ring & Ball

Stearic acid   content,%

9.0-11.0

FTIR

 

 

Applications:

① Alkylphenol disulfide is a nitrosamine free sulfur donor for natural and synthetic rubbers.

② Alkylphenol disulfide produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics.

③ Alkylphenol disulfide can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems. 

④ In tires Alkylphenol disulfide is used in the inner-liner, chafer,bead apex, sidewalls, and tread.

⑤ Industrial applications include noise damping blocks, motor mounts, dock fenders, elastic threads, automobile engine hoses, gaskets, belts, and other industrial rubber products that require good heat resistance.

⑥ Alkylphenol disulfide also aid in rubber processing. 

⑦ Dosage for reference: 0.5~20 phr.2 phr is most preferably

 

 

Features

① Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene.

② Synergism: Can be used with most typical rubber accelerators and sulfur. When used as a partial replacement for sulfur, Alkylphenol disulfide polymer tends to improve dispersion of other additives in the rubber.

③ Crosslink Type: Alkylphenol disulfide promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.

④ Non-nitrosamine: Alkylphenol disulfide doesn’t produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.

 

 

Advantages:

① Non-nitrosamine

② Lower tack to make it easier to stock and handle

③ Lower volatility

④ Lower volatile degradation products

⑤ Good compatibility with many rubber polymers

⑥ Very good antioxidant properties

⑦ Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks

⑧ Increase the resinous plasticizer during processing

⑨ Increase the green tack in NBR,BR and SBR based compounds

⑩ Improve the dispersion of other compound ingredients into rubber

 

Package:

25kgs/kraft bag;25kgs/paper drum;25kgs/carton box or as customer’s request;

 

Storage: 

Store it in dry,cool and shady place(below 86 °F/30℃)

Keep the package sealed during not using it.

 

Transportation:

Vulcanizing agent for rubber is not a dangerous goods according to transport regulation.

 

Shelf Life:

2 years at least if stored as indicated above

 

Lead Time:Prompt delivery for quantity within 20mts.


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