Mixland + predispersed rubber chemicals are a new generation of products that take the consistency, uniformity, quality and handling of predispersed chemicals to a new level of performance. Based on a unique and patented binder system, and production technology, Mixland + predispersions represents the highest quality, cost effective products to the rubber market. Filtered at levels not previously possible, Mixland + products are ideal for all applications where high dispersability, thermal stability and surface finish are pre-requisite requirements.
Mixland + TMTD – Tetramethylthiuram disulfide - is used as an ultra accelerator or as a booster of multi-accelerator blends with thiazoles and sulphenamides, and as a vulcanisation agent (sulphur donor) in most of the sulphur cured elastomers. It gives fast vulcanisations and therefore short processing times (scorchy).
It gives an excellent vulcanisation plateau with good heat ageing and compression set resistance for use in sulphurless vulcanisation and in EV systems. Excellent colour is obtained in carbon black-free vulcanisates.
In EPDM, Mixland+ TMTD is a valuable secondary accelerator. In the vulcanisation of CR with ETU, it is often used as a retarder.
It is suitable for NR, SBR, IR, BR, NBR, IIR and EPDM.
It liberates 13.3 % of sulphur at vulcanisation tempera-tures. It is activated by aldehydeamine and guanidine accelerators. ZnO and stearic acid are required, whereas litharge tends to slow down vulcanisation.
Also Known As
TMTD, Tetramethylthiuram disulphide, Thiuram, Methyl Tuads
