F-12芳纶织物输送带的制备及其性能

doi:10.13475/j.fzxb.20200300808

纺织学报 ›› 2020, Vol. 41 ›› Issue (12): 87-93.doi: 10.13475/j.fzxb.20200300808

F-12芳纶织物输送带的制备及其性能

李美真¹(), 赵士毅¹, 冯艳丽², 郭晓卿¹, 于晓庆¹

1.内蒙古工业大学轻工与纺织学院, 内蒙古呼和浩特 010051
2.中国航天科工集团第六研究院, 内蒙古呼和浩特 010010

收稿日期:2020-03-03 修回日期:2020-09-09 出版日期:2020-12-15 发布日期:2020-12-23
作者简介:李美真(1963—),女,教授。主要研究方向为纺织化学与染整工程。E-mail: lmz2909@126.com。
基金资助:
呼和浩特市科技计划项目(产学研-2015-9)

Preparation and properties of conveyor belt reinforced by F-12 aramid fabric

LI Meizhen¹(), ZHAO Shiyi¹, FENG Yanli², GUO Xiaoqing¹, YU Xiaoqing¹

1. College of Textile and Light Industry, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
2. The Sixth Academy of China Aerospace Science and Industry Corporation Limited, Hohhot, Inner Mongolia 010010, China

Received:2020-03-03 Revised:2020-09-09 Online:2020-12-15 Published:2020-12-23

摘要/Abstract

摘要：

为提高F-12芳纶织物与橡胶之间的粘结性能,采用环氧树脂和偶联剂A187对F-12芳纶织物进行改性。通过成膜分析确定出环氧树脂的最佳用量;通过改性后F-12芳纶织物的浸水高度以及浸渍间苯二酚-甲醛树脂乳液后的拉伸强度和断裂强度测试,确定出偶联剂A187的最佳用量。在此基础上,对改性后的F-12芳纶织物进行硫化成型,测试织物与橡胶的剥离强度确定出最佳改性工艺。结果表明:环氧树脂用量为25%(o.w.f),偶联剂A187用量为1.2%(o.w.f)时,制备的F-12芳纶织物轻薄输送带的综合性能最佳;改性后浸水高度值最低的F-12芳纶织物制备的轻薄输送带的剥离强力达到最高,为12.1 N/mm,其剥离强度高于行业标准;制备的单层铺层输送带的扯断强力为6 495.25 N,断裂伸长率为13%,双层铺层输送带的扯断强力为14 493.25 N,断裂伸长率为14%。

关键词: F-12芳纶织物, 环氧树脂, 偶联剂A187, 输送带, 剥离强度

Abstract:

In order to improve the adhesion between F-12 aramid fabric and rubber in conveyor belt, epoxy resin and coupling agent A187 were used to modify the fabric. The optimum dosage of epoxy was determined by film forming analysis. The optimum dosage of coupling agent A187 was determined by measuring the hydrophilic height of the modified fabric and the tensile strength of the modified fabric after immersion in resorcinol formaldehyde resin emulsion. Based on the above, the modification of the fabric was vulcanized, and the optimal modification process was determined by testing the peel strength between the fabric and rubber. The results show that when the content of epoxy resin is 25% (o.w.f) and the content of coupling agent A187 is 1.2% (o.w.f), the comprehensive performance of the F-12 aramid fabric conveyor belt is the best. It is found that the fabric with the lowest hydrophilic value turns to have the highest peel strength of 12.1 N/mm, which is higher than what is required in the industry standard. The tensile strength and elongation at break of the single layer conveyor belt are 6 495.25 N and 13% respectively, and 14 493.25 N and 14% for the double layer belt.

Key words: F-12 aramid fabric, epoxy resin, coupling agent A187, conveyor belt, peel strength

中图分类号:

TS193.5

李美真, 赵士毅, 冯艳丽, 郭晓卿, 于晓庆. F-12芳纶织物输送带的制备及其性能[J]. 纺织学报, 2020, 41(12): 87-93.

LI Meizhen, ZHAO Shiyi, FENG Yanli, GUO Xiaoqing, YU Xiaoqing. Preparation and properties of conveyor belt reinforced by F-12 aramid fabric[J]. Journal of Textile Research, 2020, 41(12): 87-93.

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纤维名称	线密度/ dtex	断裂强度/ (cN·dtex^-1)	断裂伸长率/%	初始模量/GPa
F-12芳纶	1 100	24.43	2.87	134.52
芳纶Ⅱ	1 100	18.61	2.14	123.00
涤纶	1 100	6.91	12.35	12.09
锦纶66	1 400	7.71	15.58	11.36

样品类型	纤维名称	断裂强力	“H”抽出强力
单束丝	Kevlar	213.2	—
	芳纶Ⅱ	252.9	—
	F-12芳纶	294.9	—
帘子线	Kevlar	524.7	—
	芳纶Ⅱ	532.8	—
	F-12芳纶	577.1	—
二浴改性帘子线	Kevlar	373.3	125.4±3.31
	芳纶Ⅱ	370.1	139.5±3.45
	F-12芳纶	515.3	167.6±3.58

捻度/ (捻·10 cm^-1)	断裂强力/N	断裂伸长率/%	初始模量/GPa	“H”抽出力/N
0	222.50	2.85	134.52	120.5
4	227.66	2.67	137.58	122.5
6	263.60	2.87	137.06	125.8
8	270.65	2.98	137.24	121.7
10	260.82	2.94	133.53	121.3

改性方式	断裂强度/(cN·dtex^-1)	断裂伸长率/%
未处理样品	22.91±1.04	1.50±0.37
一浴改性处理样品	18.98±2.21	3.14±0.80
二浴改性处理样品	24.58±2.66	2.85±0.19

处理方法	试样厚度/mm	断裂强度/MPa	断裂伸长率/%
未改性织物	0.58±0.03	441.91±7.61	11.0±0.93
一浴改性织物	0.59±0.03	658.98±8.54	9.10±1.21
二浴改性织物	0.53±0.03	586.86±9.16	7.10±1.17

F-12芳纶织物输送带的制备及其性能

Preparation and properties of conveyor belt reinforced by F-12 aramid fabric

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铺层方式	厚度/ mm	断裂强力/N	断裂强度/MPa	断裂伸长率/%
单层	7.6	6 495.25	95.00	13
双层	8.5	14 493.25	187.08	14