ep2622976a1-vulcanization accelerator-and sulfur-free elastomer
ep2622976a1-vulcanization accelerator-and sulfur-free elastomer
ep2622976a1-vulcanization accelerator-and sulfur-free elastomer
ep2622976a1-vulcanization accelerator-and sulfur-free elastomer
ep2622976a1-vulcanization accelerator-and sulfur-free elastomer
ep2622976a1 - vulcanization accelerator- and sulfur-free

EP2622976A1 - Vulcanization accelerator- and sulfur-free

Description [FIELD OF THE INVENTION] [0001]

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(19) TZZ T - patentimages.storage.googleapis.com

A rubber gloves which is used by operators working in clean room is prepared by forming materials under the presence of sulfur as a crosslinking agent, or zinc oxide and sulfur compound as a vulcanization accelerator. Sometimes, a vulcanization accelerator which contains sulfur compound can be used.

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design strategy for vulcanization accelerator of ... - research

Design Strategy for Vulcanization Accelerator of ... - Research

1 Sep 2022 Vol 2022 Article ID: 9814638 DOI: 10.34133/2022/9814638 Abstract Vulcanization is an essential process to obtain high-performance rubber products. Diphenylguanidine (DPG) is often used as the secondary accelerator in the vulcanization process of natural rubber (NR) latex.

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vulcanization & accelerators - nocil

Vulcanization & Accelerators - Nocil

Sulfur as vulcanizing agent has a limitation that, the elastomers must contain chemical unsaturation (C=C double bonds) for cross linking. The structure of speciality elastomers EPDM and Butyl had to be sulfur chemically modified to make sulfur vulcanization possible for their commercial success.

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Sulfur vulcanization uses sulfur as a crosslinking agent. However, sulfur vulcanization takes place at a very high temperature and needs a long time to accomplish. Thus, some additives such as accelerator, activator (ZnO), fatty acids, and antioxidants have been used to promote the rubber vulcanization¡¯s efficiency.

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usefulness of vulcanization accelerator-free nitrile rubber

Usefulness of vulcanization accelerator-free nitrile rubber

Vulcanization accelerators have a high frequency of contact allergy and have been selected as allergens for the baseline series to be applied simultaneously during patch testing ( Ito et al. 2022; DeKoven et al. 2023; Wilkinson et al. 2023).

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energy efficient, accelerator-free, cold vulcanization

Energy Efficient, Accelerator-Free, Cold Vulcanization

inches per second. The coagulant coated mandrels were dried for 5 minutes in a 150 F oven. The mandrels were thereafter dipped into the latex at a speed of 0.8 inches per second and lifted out at an exit speed of 0.2 inches per second. The mandrels were allowed to dwell in the latex for 15 seconds.

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the influence of curing systems on the cure characteristics

The Influence of Curing Systems on the Cure Characteristics

A multifunctional additive for rubber compounds, namely Activ8, was applied as an additional activator and accelerator to increase the efficiency of sulfur vulcanization and to reduce the content of zinc oxide elastomers cured in the presence of 2-mercaptobenzothizole or 1,3-diphenylguanidine as a primary accelerator.

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ijms | free full-text | thermochemistry of sulfur-based

IJMS | Free Full-Text | Thermochemistry of Sulfur-Based

The vulcanization of rubber compounds is an exothermal process. A carbon black-filled and natural rubber-based (NR) formulation was mixed with different levels of sulfur (0.5, 1.0, 2.0, 4.0 and 6.0 phr) and studied with differential scanning calorimetry (DSC) for the determination of the vulcanization enthalpy. It was found that the vulcanization enthalpy is dependent on the amount of sulfur

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