A recent customer calls reflect: the use of tasteless ultra-fine reclaimed rubber gel appeared when the roll-off phenomenon, and in the use of ordinary tread rubber did not appear this case, the test is not thin roll pass. Due to the need to be environmentally friendly and tasteless export products, it is not possible to add coal tar or conventional tread compounds to the formulation.
On this issue, our factory technicians have done the following analysis, and made a few comments to the customer: Recycled rubber does not roll the majority of the reason is due to low fat content or low gel content, sometimes too much carbon black Will lead to the phenomenon of taking off the roller, part of the formula is unreasonable or the wheelbase is too large may also lead to non-roller phenomenon.
Tire reclaimed rubber roll off the problem solution:
1, the first in the process of improvement, such as the roll temperature, wheelbase, speed and other adjustments to see if you can improve: temperature, plastic flow increases, intermolecular forces weakened, strength will lead to plastic roll off phenomenon The roll-off can be improved by reducing the roll gap, increasing the speed ratio or increasing the roll speed.
2, if the cost is allowed to add some thickener additives, such as WS280 formula adjustment.
3, too much liquid softener can lead to the phenomenon of taking off the roll, it is recommended to add some rosin or tasteless pine tar.
4, adding an appropriate amount of reinforcing agent, but with carbon black as a reinforcing agent, the amount of too much can also cause the roller does not wrap the roller, so to control the dosage.
5, through the curing time, curing temperature and other conditions to improve the tire reclaimed rubber off the roller problems: for example, delay the production of reclaimed rubber products; to ensure both plastic plastic material flow, but also a high degree of elastic deformation.
In addition, our engineers also made a solution to the problem of roll-off for the less demanding tire reclaimed rubber products and posted it to share with your friends:
The use of styrene butadiene rubber and natural rubber combination strategy, 30 parts of natural rubber, 70 parts of SBR, 100 parts of light calcium carbonate, 600-700 parts of tire reclaimed rubber, antioxidant and curing agent can be appropriate amount of more. (The formulation of the overall formula containing about 10% glue, the proportion of 1.3 or so, the cost of 5 yuan / kg or so)
Hebei Hongyun recycled plastic factory production of environmentally friendly tasteless tire reclaimed rubber through the EU REACH environmental directive certification, pollution-free products, no radiation, no infiltration, the majority of rubber products manufacturers producing export-oriented rubber floor, rubber foot pad, cow shed, car Trim new raw materials.
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