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  • Dimetil tio-tolueno-diamina (DMTDA)

Dimetil tio-tolueno-diamina (DMTDA)

  • Descrição:
  • Nome químico:
    Dimetil-tio-tolueno-diamina; DMTDA
    Aparência:
    Líquido transparente amarelo claro
    HS: 2921519090
    CAS. No: 106264-79-3
    Fórmula: C9H14N2S2
    Peso molecular: 214.34

    País de origem: China

    Produção anual: Toneladas 1000

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  • MSDS

Dimethyl Thio-Toluene Diamine Basic Information
Nome inglês: dimetil tio-tolueno diamina
Sinônimos: 3,5-dimetiltio-2,4-toluenodiamina; 2,4-Diamino-3,5-dimetiltiotolueno; dimetil tio-tolueno diamina; DMTDA; 1,3-Benzenodiamina, 2 (ou 4) -metil-4, 6 (ou 2,6) -bis (metiltio) -; Ethacure 300; ETHACURE; 2 (ou 4) -metil-4,6 (ou 2,6) -bis (metiltio) -1,3-benzenodiamina
Fórmula: C9H14N2S2
Peso Molecular: 214.36
Número EINECS: 403-240-8

Dimethyl thio-toluene diamineDMTDA-Good-Quality


Dimethyl Thio-Toluene Diamine(DMTDA) Physical And Chemical Properties
Aparência: Líquido transparente amarelo claro
Ponto de ebulição: 200 ℃ (1.68 MmHg)
Índice de refração: 1.659
Ponto de inflamação: 163.4 ° C
Densidade: 1.206
Water≤0.1%
Valor da amina (MgKOH / G) 525-535
Valor da cor (método de platina-cobalto) ≤500
Dimetiltiotoluenodiamina (2,4-Plus 2,6) Teor% ≥96.0


Dimethyl Thio-Toluene Diamine(DMTDA) Export Cargo Security Data
N.o CAS: 106264-79-3
Hs: 29309090.90
Classe de perigo: 9
Taxa de imposto (%): 13%

Un: 2810


Dimethyl Thio-Toluene Diamine(DMTDA) Raw Materials:
Diamina de tolueno (TDA) e dissulfeto de dimetilo (DMDS)


Situação de produção:

O rendimento do produto: 80 toneladas / mês

O envio Porto: China ShangHai

A oferta do preço é válida: 15 dias

Tempo Jincang: 15 dias (inspeção de mercadorias)

Direitos de exportação: o direito de importar e exportar empresas


Índice do Produto:

Unid

Especificações

Resultados

exterior

Líquido transparente amarelo claro

líquido transparente amarelo claro

Valor da cor (método de platina-cobalto)

≤ 500

350

Dimetiltiotoluenodiamina (2,4-2,6)

% De conteúdo ≥96.0

97.2

Metiltio toluenodiamina

Conteúdo% ≤4.0

2.3

Toluenodiamina de três grupos

Conteúdo% ≤1.0

0.2

água

≤0.1%

0.05

Valor da amina (mgKOH / g)

525-535

529


Dimethyl Thio-Toluene Diamine Uses:

Dimethyl Thio-Toluene Diamine(DMTDA) is a new polyurethane elastomer cured crosslinking agent, which is equivalent to Ethancure 300 mainly 2,6-thio-toluenediamine mixture of two isomers i.e., 2,4- and (ratio of about 77 ~ 80/17 ~ 20), compared with MOCA commonly used at room temperature is low viscosity liquid, it can be applied to construction operations, chemical use and low equivalent at low temperatures. DMTDA is an environmentally friendly low-toxicity liquid type diamine chain extenders, mainly used for polyurethane elastomers, RIM (reaction injection molding), SPUA (spray polyurea elastomer) and adhesives; also be used as an epoxy resin curing agent, has been widely used in polyurethane rubber roller, medical, stamping, etc. in addition, it is in the automotive, construction, mining, metal mining, textiles, paper, printing industry has a wide range of applications. DMTDA curing rate is much slower than DETDA, with DETDA mixed in different proportions to regulate the curing speed to meet different needs.


Dimethyl Thio-Toluene Diamine Instructions:

Dimethyl Thio-Toluene Diamine(DMTDA), because a liquid at room temperature, so the operation has significant benefits, such as the transfer easier and MOCA solid melting process will be eliminated. Similarly, the possibility of solidification does not occur in a mixing vessel or mixing machine inside. Furthermore, it is in a liquid state, allowing operation at a lower temperature than the MOCA. DMTDA equivalent is 107 compared with MOCA is 133.5, which means that the same given under stoichiometric prepolymer can be reduced 20% by weight of the amount of use. For instance:


Prepolymer (NCO 4.1) 100 parts 100 parts

MOCA (95% da teoria) 12.4 partes -

DMTDA (95% da teoria) 9.9 partes

Total 112.4parts 109.9 parts

Dimethyl Thio-Toluene Diamine(DMTDA) specific gravity of about 1.20g / cm3, Recommended temperature 70-90 ℉ (21-33 ℃), and the use of temperature 240 ℉ (116 ℃) melted MOCA proportion of 1.26g / cm3, which means that the volume of use Both pumps transport raw materials without changing the existing mixing equipment case, to achieve the above object need to use ratio instead DMTDA MOCA use ratio.

Dimethyl Thio-Toluene Diamine(DMTDA) physical properties of curing agents of polyurethane elastomer: the physical properties of the prepolymer, including polyester and polyether type, with DMTDA cured, and cured compared with MOCA; as with MOCA curing systems, pre Physical properties of the cured polymer ideal ratio is sensitive, DMTDA curing agent compared with MOCA, to stoichiometric exhibit acceptable deviation stoichiometric low (80-90%) is usually obtained as helpful maximum permanent deformation resistance to compression rate, and high stoichiometry (100-105%) helps to get the maximum value such as tear strength and fatigue life. For best results when most uses is 95% of the ideal ratio. (DMTDA curing conditions (temperature and time) and MOCA similar, but more emphasis needs DMTDA secondary vulcanization conditions to obtain optimum physical properties, particularly compression set and dynamic mechanical properties.

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