Natural rubber (NR) has a complex composition. In addition to the main component cis-1,4-polyisoprene, it also contains a small amount of non-rubber substances such as protein, fatty acids and ash. NR has excellent properties, not only good elasticity and crack growth resistance, but also low heat generation and hysteresis. Therefore, NR is widely used in many fields such as tires, hoses, sports equipment, and aircraft and automobile parts due to its excellent comprehensive performance, and plays an indispensable and important role in the national economy and national defense construction.

Of course, NR also has some shortcomings. For example, the soft molecular chain makes its damping performance and wear resistance poor, and the large number of double bonds in the molecular chain makes its aging resistance poor. How to improve and make up for these shortcomings is also a problem that scientific and technological workers are keen to study.

The unique electronic structure gives rare earths many magical physical and chemical properties. Some scholars have found through research that rare earths can not only be used as catalysts in the production of rubber, but also as functional additives to improve the vulcanization, aging and reinforcement properties of rubber, which makes it widely used in various fields of rubber materials. The results show that the addition of rare earth sulfide can not only shorten the vulcanization time of NR and accelerate the vulcanization speed, but also greatly improve the mechanical properties, aging resistance, wear resistance, etc. of the material. The performance improvement effect is far better than the traditional vulcanization additive HVA-2.

Suzhou KP Chemical Co., Ltd can provide Rare earth sulfides such as Lanthanum sulfide, Cerium(III) sulfide, Praseodymium sulfide, Neodymium Sulfide，Samarium sulfide, Europium(II) sulfide, Gadolinium sulfide and Yttrium sulfide. Please contact info@szkpchem.com or 086-18915544907.