The scorch time of the pre-dispersed accelerator DPG-80 is long and the vulcanization speed is slow, which will cause slight discoloration and cannot be used in light-colored products unless used as an active agent. When the pre-dispersed accelerator DPG-80 is used alone, the vulcanizate has poor thermal oxidative aging resistance (effective antioxidant is required); The pre-dispersed accelerator DPG-80 can effectively activate thiol accelerator. The pre-dispersed accelerator DPG-80 has no vulcanization promotion effect on butyl rubber IPDM and ethylene propylene rubber EPDM.

Pre-dispersed accelerator MBTS(DM)-75 is a general-purpose quasi-speed accelerator with good processing safety, which can be used alone or in combination with other accelerators. In combination with activated dithiocarbamate accelerators, scorching can be prevented. Thuram, dithiocarbamate and aldehyde amine accelerators have activation effects on MBTS(DM)-75; it has a delaying effect in the processing and vulcanization of CR compound. When combined with overspeed accelerator, MBTS(DM)-75 can improve the processing safety.

The pre-dispersed accelerator NOBS(MBS)-80 makes the scorch time of the compound quite long, the processing safety is very high and the vulcanization is very complete. It can be used alone as the main accelerator in low-sulfur vulcanization, or it can be used in combination with dithiocarbamate or thiuram accelerator, and the resulting vulcanizate has good heat aging resistance and good compression deformation; pre-dispersed accelerator NOBS(MBS)-80 and dithiocarbamate accelerator and thiuram accelerator will significantly reduce the scorch time of the compound. The combination of thiuram TMTM-80 accelerator and pre-dispersed accelerator NOBS(MBS)-80 has a particularly obvious promotion effect of shortening vulcanization time, and has good anti-scorch effect and high crosslinking degree. In low sulfur compound, in the compound containing sulfur alcohol accelerator and thiuram accelerator, the pre-dispersed accelerator NOBS(MBS)-80 can delay scorch.

R-80 is one of the components of resorcinol/formaldehyde/silica adhesive system. The resorcinol-formaldehyde-resin system can be used during processing with a formaldehyde donor such as HEXA-80 or RA-65 to form a rubber-to-fabric or steel cord bond; this system is suitable for bonding various rubbers to reinforcing materials, for example, fibers, glass fibers and metals such as steel cords.

The resin is a modified thermoplastic polyalkylphenol-formaldehyde resin, long-acting, moisture-resistant, high tackifier, can give the rubber a good initial viscosity, but also has excellent storage and wet heat viscosity; easy ingredients, easy to disperse, can be dissolved in aromatic hydrocarbon solvents.

The resin is a non-reactive thermoplastic phenolic resin, which contains a curing agent HMT, powder, simple process, easy to disperse.

Pre-dispersed whitening agent is TiO2-80 suitable for printing plates, printing rollers, copier tapes and other light-colored rubber products with strict surface requirements and no defects. At the same time, it also has the function of protecting the surface of white or light-colored rubber products from sunlight and ultraviolet light.

Under normal circumstances, the pre-dispersed crosslinking agent TCY-70 can be used as an effective vulcanizing agent for halogen-containing rubber, such as CO, ECO, CIIR and BIIR, as well as a vulcanizing agent for ACM rubber and a co-vulcanizing agent for NBR/PVC blended elastomer. Mixing compound containing TCY-70 is easy to scorch, so the mixing temperature should not be too high or the mixing time should be as short as possible, and the mixing time should not be too long, the compound is stored at a lower temperature; however, in order to improve the storage stability of the compound containing TCY-70, a pre-dispersed scorch retarder CTP-80 can be added to the formulation; in addition, TCY-70 has a tendency to increase the bond strength of rubber to metal.

The pre-dispersion of organic foaming agent for rubber can start foaming OBSH-75 at 150 ℃ and release N2. Adding appropriate foaming active agent can further reduce the initial foaming temperature, and reasonable design and reasonable matching of foaming speed and vulcanization speed can improve the foaming quality. Thermoplastic EPDM/EVA as an effective pre-dispersion carrier can promote OBSH rapid mixing and uniform dispersion.