Page 107 - 《橡塑技术与装备》2023年1期

材料与配方 张小萍 等·改性凹凸棒土补强力车胎胶料的制备及性能研究

合材料内应力传递 [J]. 合成橡胶工业，1997, 20(3):156-158. 结构和性能研究 [J]. 北京化工大学学报，1999, 26(3):25-29.
[14] 王益庆，张立群，张慧峰，等 . 凹凸棒土 / 橡胶纳米复合材料

Study on preparation and properties of modified attapulgite reinforced
tire compound

2
1
Zhang Xiaoping , Wei Bangfeng , Yang Hui , Wang Zhongguang 1
1
(1.Xuzhou College of Industrial Technology, Rubber Recycling Engineering Technology R&D Center of Jiangsu
Province, Xuzhou 221140, Jiangsu, China;
2. Xuzhou Armour Rubber Co. LTD., Xuzhou 221011, Jiangsu, China)

Abstract: Semi wet modified nano attapulgite (AT) tire compound was prepared by mechanical
blending. The effects of the filler fraction of modified AT on Mooney viscosity, vulcanization properties and
mechanical properties of the tire compound were studied. The microstructure of the modified AT and its
reinforced tire compound was observed by scanning electron microscopy (SEM) and transmission electron
microscopy (TEM). The results show that the modified AT is composed of nano single crystals with a diameter
of 10~25 nm and a length of 100~2000 nm. The force between the single crystals is weak, which can be
separated and uniformly dispersed in the tire compound under the action of mechanical shear force, forming
a nanocomposite with good interfacial bonding effect. Compared with precipitated silica, the semi wet
modified AT can reduce the Mooney viscosity of the tire compound, shorten the curing time, and improve
the processing properties of the tire compound. With the increase of the amount of modified AT, the tensile
strength, 300% elongation stress and tear strength of the tire compound first increased and then decreased
slightly. When the content of modified AT was 60 phr, the comprehensive properties of the tire compound
were the best, and its mechanical properties reached and exceeded the requirements of the national
standard.
Key words: semi wet modification; attapulgite; hand cart tire; process performance; mechanical
properties; nanocomposites
（R-03)

山东重点发展先进制造业 提升轮胎产业结构层次
Shandong focuses on developing advanced manufacturing industry and upgrading tire industrial structure

近日，山东省委、省政府印发《先进制造业强省行动计划（2022-2025 年）》，要求各级各部门单位认真贯彻
落实。
在总体目标中提到，力争到 2025 年，制造业增加值占全省 GDP 比重达到 30% 左右，规模以上工业企业营
业收入利润率达到 6% 左右，规模以上工业企业研究与试验发展（R&D）经费支出占营业收入比重达到 2.2% 左
右，高新技术产业产值占规模以上工业总产值比重达到 50% 左右，数字经济核心产业增加值占全省 GDP 比重达
到 10% 左右，单位工业增加值能源消耗较 2020 年降低 17% 左右，推动制造业实现质的有效提升和量的合理增长，
初步建成先进制造业强省。
计划提到要提升产业结构层次。加快转调优化低效产能，持续深入开展化工产业安全生产转型升级专项行动，
深入推动钢铁、炼化、焦炭、水泥、轮胎、化工等高耗能行业高质量发展。
摘编自“聚胶”
（R-03)

2023 第 49 卷 ·53·
年