«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:

2023年3期

页码:

248-254

栏目:

出版日期:

2023-05-15

文章信息/Info

Title:

Modification method and reinforcing effect of waste tire pyrolytic carbon black on natural rubber

文章编号:

1000-1255（2023）03-0248-07

作者:

房海滨; 李挺松; 周 平; 蔡小慧; 辛振祥?鄢

青岛科技大学 高分子科学与工程学院，山东 青岛 266042

Author(s):

FANG Hai-bin;  LI Ting-song;  ZHOU Ping;  CAI Xiao-hui;  XIN Zhen-xiang

School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

关键词:

干法改性; 废轮胎; 热解炭黑; 改性树脂; 球磨改性; 力学性能; 动态力学性能; Payne效应

Keywords:

dry modification;  waste tire;  pyroly-tic carbon black;  modified resin;  ball milling modification;  mechanical property;  dynamic mechanical property;  Payne effect

分类号:

TQ 330.38＋1

DOI:

DOI:10.19908/j.cnki.ISSN1000-1255.2023.03.0248

文献标识码:

B

摘要:

采用干法改性，分别以3种改性树脂PA、PF-203、Polstal-PC为改性剂，使用行星式球磨机对废轮胎热解炭黑（CBp）进行处理，探究改性前后CBp的理化性质和结构的变化，并考察所得改性CBp的增强性能及改性CBp对天然橡胶硫化特性、交联密度、力学性能、动态力学性能的影响。结果表明，延长球磨时间会降低CBp的粒径；改性树脂Polstal-PC的助磨效果最为明显，与未改性CBp相比，由Polstal-PC改性的CBp的总比表面积由65.1 m2/g增至97.4 m2/g，外表面的比表面积由63.0 m2/g增至71.6 m2/g；3种改性剂均有助于天然橡胶的硫化作用，添加改性树脂Polstal-PC改性CBp可明显提高天然橡胶硫化胶的拉伸强度、300%定伸应力和交联密度，添加增黏树脂PA改性CBp会导致天然橡胶硫化胶的定伸应力下降和交联密度降低；改性树脂Polstal-PC改性CBp对天然橡胶的增强作用最强，当其添加量为2份（质量，下同）时，天然橡胶硫化胶具有最佳的综合性能，其对天然橡胶硫化胶滚动阻力的提升大于抗湿滑性能的损失，但其添加量超过3份时天然橡胶硫化胶的储能模量明显增大。

Abstract:

A planetary ball mill was used to treat the pyrolytic carbon black (CBp) of waste tire by dry modification with 3 types of modified resins, PA, PF-203 and Polstal-PC as the modifiers, the changes of physico-chemical properties and structure of CBp before and after modification were explored, and the effects of modified CBp on curing characteristics, cross-linking density, mechanical properties and dynamic mechanical properties of natural rubber were investigated. The results showed that the particle size of CBp decreased with the extension of milling time. The mo-dified resin Polstal-PC had the most obvious grinding effect, and compared with unmodified CBp, the total specific surface area of CBp modified by Polstal-PC increased from 65.1 m2/g to 97.4 m2/g and the specific surface area of the outer surface increased from 63.0 m2/g to 71.6 m2/g. All of the 3 type of modifiers contributed to vulcanization of natural rubber, and CBp modified by Polstal-PC could significantly improve tensile strength, modulus at 300% and cross-linking density of natural rubber vulcanizate, and the addition of CBp modified by tackifying resin PA could cause the decrease of modulus and cross-linking density. CBp modified by Polstal-PC had the best enhancement effect on natural rubber, and natural rubber vulcanizate showed the best comprehensive performance when the addition amount of CBp modified by Polstal-PC was 2 phr (mass, similarly hereinafter), and as far as CBp modified by Polstal-PC was concerned, the improvement of rolling resistance of natural rubber vulcanizate was better than the loss of wet skid resistance. However, storage modulus of natural rubber vulcanizate increased significantly when the addition amount of CBp modified by Polstal-PC was more than 3 phr.

参考文献/References

［1］ Roy C， Chaala A， Darmatadt H. The vacuum pyrolysis of used tires： End-uses for oil and carbon black products［J］. Journal of Analytical and Applied Pyrolysis， 1999， 51（1/2）： 201-221.［2］ López F A， Centeno T A， Rodríguez O， et al. Preparation and characterization of activated carbon from the char produced in the thermolysis of granulated scrap tyres［J］. Journal of the Air & Waste Management Association， 2013， 63（5）： 534-544.［3］ Danmaliki G I， Saleh T A. Influence of conversion parameters of waste tires to activated carbon on adsorption of dibenzothiophene from model fuels［J］. Journal of Cleaner Production， 2016， 117： 50-55.［4］ Ding Wenbing， Wang Li， Yang Qiang， et al. Recent research progress on polymer grafted carbon black and its novel applications［J］. International Polymer Processing， 2013， 28（2）： 132-142.［5］ Jia Lichuan， Li Yike， Yan Dingxiang. Flexible and efficient electromagnetic interference shielding materials from ground tire rubber［J］. Carbon， 2017， 121： 267-273.［6］ Chen Wei， Feng Huajun， Shen Dongsheng， et al. Carbon materials derived from waste tires as high-performance anodes in microbial fuel cells［J］. Science of the Total Environment， 2018， 618： 804-809.［7］ 刘浩. 废旧轮胎热解炭黑的深加工与再利用［D］. 青岛： 青岛科技大学， 2020.［8］ 卢言成. C5石油树脂的改性及其在热熔压敏胶中的应用［D］. 沈阳： 沈阳理工大学， 2008.［9］ 古菊， 林路， 罗远芳， 等. 纳米微晶纤维素替代炭黑补强天然橡胶［J］. 华南理工大学学报（自然科学版）， 2012， 40（4）： 101-106.

备注/Memo

备注/Memo:

无

常用功能

更新日期/Last Update: 1900-01-01