Nanjing Union Rubber and Chemicals Co., Ltd.
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20N, Building B, New World Center, 88# Zhujiang Rd. Nanjing,210008
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Tel:
86-25-84462798
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Product Name:
Hidispersion rubber accelerators NURCHEM CBS-80
Model:
NURCHEM CBS-80
Description:
CBS-80 is a medium fast primary sulphenamide accelerator for NR, IR, BR and especially SBR, combining a fast cure with a delayed action. It has the ability to provide fast efficient mixing of difficult, highly loaded carbon black reinforced compounds, without sacrificing scorch safety or physical properties. Its vulcanisates have good heat ageing and tear resistance.
Product Name:
Hidispersion rubber accelerators NURCHEM DOTG-75
Model:
NURCHEM DOTG-75
Description:
As a primary accelerator, it is very slow and therefore rarely used alone.NURCHEM DOTG-75 is an excellent secondary accelerator or booster for thiazoles and sulphenamides. It is often used with TMTM in CR. It gives faster cure rates and better mechanical properties in general purpose elastomers. It provides vulcanisates with high modulus but poor heat-ageing resistance.
Product Name:
Hidispersion Rubber Accelerators NURCHEM DPG-80
Model:
NURCHEM DPG-80
Description:
As a primary accelerator for NR, NURCHEM DPG-80 is very slow and, consequently, rarely used alone. For NR and SBR, it is mainly used as a secondary accelerator or as a booster for thiazoles, but also for sulphenamides (when moderate increases in cure rate are desired). It gives faster cure rates and better mechanical properties in general purpose elastomers. Owing to discoloration, it is mostly used for dark or black colour products. It imparts a slightly bitter taste so it is unsuitable for applications in the manufacture of food-contact materials.
Product Name:
Hidispersion Rubber Accelerators NURCHEM DPTT-75
Model:
NURCHEM DPTT-75
Description:
NURCHEM DPTT-75 is the most active thiuram. It is an effective primary or secondary accelerator or sulphur donor for use in IIR, EPDM, NR, IR, SBR, CR, CSM, and particularly for NBR. For CSM, DPTT should be used together with MBTS to furnish higher safety in blending procedure. It also yields white rubber with excellent resistance against weathering. With NR and synthetic rubbers it vulcanises without sulphur at low temperatures and leads to products with good physical properties and superb resistance against ageing. NURCHEM DPTT-75 is effective at low and high temperatures. It is particularly suitable for light-coloured stocks.
Product Name:
Hidispersion Rubber Accelerators NURCHEM ETU-80
Model:
NURCHEM ETU-80
Description:
NURCHEM ETU-80 is a primary accelerator or a secondary ultra-accelerator for CR (both sulphur-modified and mercaptan-modified types), an accelerator for epichlorhydrin rubber and a booster in EPDM. It provides rubbers with high tensile stress, low compression set, high plasticity and good heat resistance, and increases the modulus after vulcanisation. In association with antioxidants, it provides good resistance to ageing. NURCHEM ETU-80 shows a good dispersion, little tendency to scorch and a high degree of processing safety. It enables proper vulcanisation to be obtained speedily at normal vulcanising temperatures (above 140° C).
Product Name:
Hidispersion Rubber Accelerators NURCHEM HEXA-80
Model:
NURCHEM HEXA-80
Description:
NURCHEM HEXA-80 has low curing speed, but high crosslinking yield of vulcanized rubbers. It is suitable for the bonding of rubber and metals. No crocking. Primary accelerant: 0.6 ~ 0.8 poses used together 3 ~ 4 poses sulphur, As donator of formaldehyde: 1.3~ 1.6 poses used together2.5 ~ 3.2 poses
Product Name:
Hidispersion Rubber Accelerators NURCHEM MBT-80
Model:
NURCHEM MBT-80
Description:
NURCHEM MBT-80 is a medium fast and scorchy accelerator for natural and synthetic rubbers. Vulcanisates accelerated with MBT tend to have low modulus, very good ageing properties and little tendency to discoloration. But care should be taken because it has a slight tendency to scorch. It is suitable for NR, IR, BR, SBR, NBR, IIR and EPDM but is unsuitable for products connected with food stuffs due to its bitter taste. It can also be used as a retarder for sulphur-modified CR. NURCHEM MBT-80 readily disperses in rubbers. It is very active at temperatures above 130-135° C. It can be used alone but low temperature curing can be achieved by the use of TMTD, TETD or DPG as secondary accelerators.
Product Name:
Hidispersion Rubber Accelerators NURCHEM MBTS-75
Model:
NURCHEM MBTS-75
Description:
NURCHEM MBTS-75 is a general quasi-ultrafast accelerator with excellent processing safety which can be used alone or combined with other accelerators. NURCHEM MBTS-75 together with dithiocarbamates can avoid scorching. Thiurams, dithiocarbamates and aldehyde-amines can activate NURCHEM MBTS-75. It is a retarder for processing and vulcanization of CR compounds. It can improve processing safety with ultrafast accelerators. Its vulcanizate has an excellent heat-ageing resistance.
Product Name:
Hidispersion Rubber Accelerators NURCHEM OTOS-80
Model:
NURCHEM OTOS-80
Description:
NURCHEM OTOS-80 is a thiocarbamyl sulphenamide accelerator.It is much more efficient than benzothiazole sulphenamide accelerators. It produces vulcanisates with a high proportion of mono and disulphide crosslinks and it provides superior reversion resistance, low heat buildup and low compression set. It also provides more delayed action and faster cures than most benzothiazole sulphenamides. It can also be used as a sulphur donor to replace DTDM. OTOS can be used for all sulphur-cured rubbers.
Product Name:
Hidispersion rubber accelerators NURCHEM DOTG-75
Model:
NURCHEM TBBS-75
Description:
NURCHEM TBBS-75 is a general purpose primary accelerator combining a fast cure with a delayed action. It is very safe at processing temperatures, but produces high modulus compounds at curing temperatures. It is suitable for NR, IR, SBR, BR, NBR and EPDM. Rubber compounds containing TBBS have less scorch tendency than CBS, and can be more safely processed. Besides, the speed of cure is almost the same as CBS.NURCHEM TBBS-75 imparts excellent cured physical properties including the greatest tensile stress among the sulphenamide-type accelerator.
Product Name:
Hidispersion Rubber Accelerators NURCHEM TBzTD-70
Model:
NURCHEM TBzTD-70
Description:
NURCHEM TBzTD-70 is a fast primary thiuram accelerator for NR, IR, BR,SBR and NBR. It used as a secondary accelerator too. In NR, in association with CBS, it is better in reversion and heat build up than TMTD and it has a longer scorch time. In EPDM, it is a good booster when is combining with other accelerators In mercaptan modified CR, it is a scorch retarder when it is used with ETU. In vulcanisation, NURCHEM TBzTD-70 shows a good dispersion and a good degree of processing safety in comparison with TMTD.
Product Name:
Hidispersion Rubber Accelerators NURCHEM TCY-70
Model:
NURCHEM TCY-70
Description:
ACM: 0.7~2.1 poses and 0.6~1.9 poses ZDBC and 1.2 poses CTP 0.5-1.0 phr and 2.5-3.5 phr sulphur used together ECO: 0.7~1.4 poses and 1.2 poses CTP and 4 poses MgO CIIR,BIIR: 1.4~2.9 poses and 0.4~0.7 poses MgO NBR/PVC co-crosslinking: 1.4~2.9 poses and 1~2 poses DBD
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