Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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Application of Neodymium Isoprene Rubber in Tread of Truck Tire

20

Event: 182nd Technical Meeting
Location: Cincinnati, OH
Date: October 09, 2012
Author: Jiangwei Zhao*, Jie Zhang, Chuanqing Li, Jinmei Tan
Paper Number: 20

Price: $20.00

  • The microstructure and sequence distribution of isoprene rubber obtained via homogeneous neodymium-based catalyst were determined by means of FTIR, 1H-NMR and 13C-NMR spectroscopy. The results demonstrate that the content of cis-1,4 configuration in neodymium isoprene rubber (Nd-IR) was above 98% and no trans-1,4 configuration was observed. All monomer units of N d-IR presented ffhead-tail" structure, the same microstructure as nature rubber (NR). The mechanical properties of Nd-IR and NR were tested according to ASTM D3403. The results showed that no significant differences in mechanical properties between Nd-IR and NR, suggesting that N d-IR had equally excellent properties with NR. This can be primarily attributed to high cis-1,4 content in N d-IR macromolecular chain and relatively narrow molecular weight distribution. Nd-IR was used to produce tread of whole-steel heavy-load meridian tires, in which 60 wt % of NR in formulation was substituted by Nd-IR. The processibility of the new tread formulation paraelled with that of NR formulation. And the tread made of 60% Nd-IR exhibited equally good performance with that made of 100% NR. What should be noted is that the endurance of tires with 60% N d-IR was 122.3h, which was almost twice of that of tires with 100% NR.

    Papers from 182nd Technical Meeting

    Items from 182nd Technical Meeting