CN109956259A - 一种耐低温pvc输送带及其制备方法 - Google Patents

一种耐低温pvc输送带及其制备方法 Download PDF

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CN109956259A
CN109956259A CN201910254019.1A CN201910254019A CN109956259A CN 109956259 A CN109956259 A CN 109956259A CN 201910254019 A CN201910254019 A CN 201910254019A CN 109956259 A CN109956259 A CN 109956259A
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low temperature
temperature resistant
parts
plasticizer
pvc
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张忠伟
弋飞
姬振振
扈强
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Faure Posy Green Transport Technology (china) Co Ltd
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Abstract

本发明公开了一种耐低温PVC输送带及其制备方法,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,耐低温增塑剂2~10份,色浆0.1~3份,所述中间涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,填料5~15份,色浆0.1~3份。具备下述有益效果:耐低温PVC输送带中的耐低温涂层为含有癸二酸二辛酯的涂层,制得的耐低温PCV输送带在‑30℃下运输测试,能够在运作600小时后依然不会发生接口开裂的现象,耐低温PVC输送带的拉伸强度达到10.1~11.5N/mm,断裂伸长率高达18.2%,能够在温度‑30℃~0℃的温度范围下使用。

Description

一种耐低温PVC输送带及其制备方法
技术领域
本发明涉及输送带技术领域,具体涉及一种耐低温PVC输送带及其制备方法。
背景技术
输送带在人们的日常生活中广泛运用,其中,PVC输送带是比较常见的。现有技术的导电输送带,PVC输送带是由单层或多层增强体和覆盖胶层组成,具有质轻、尺寸稳定性好、张力高、色彩明快、安全无毒等特点,广泛应用于各行各业,其中以涤纶织物作为基体,以PVC树脂为基质的轻型PVC输送带,常用于各产业。但是,轻型PVC输送带的使用过程中,耐磨耐低温性能差,普通PVC输送带在低温(-30~0℃)环境下使用时,会因为增塑剂的凝固点较高,导致输送带的PVC材质发生硬化、脆化、开裂而丧失输送带所有的弹性,从而失去其使用价值。尤其是在寒冷的北方,输送带表面会极易发生脆裂及磨损,输送带不仅力学性能降低,而且使用寿命也受到影响。
综上所述,本发明提供了一种耐低温PVC输送带及其制备方法,该耐低温PVC输送带制备简单,使用效果好、耐低温。
发明内容
本发明的目的是提供本发明提供了一种耐低温PVC输送带及其制备方法,该耐低温PVC输送带制备简单,导电效果佳。
为实现上述目的,本发明是通过下列技术方案实现的:
一种耐低温PVC输送带,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,耐低温增塑剂2~10份,色浆0.1~3份,所述中间涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,填料5~15份,色浆0.1~3份。
作为进一步的改进,所述耐低温增塑剂为癸二酸二辛酯。
作为进一步的改进,所述填料为轻质活性碳酸钙。
作为进一步的改进,橡胶增塑剂、聚酯增塑剂、邻苯二甲酸二辛酯(CAS No.:123-79-5)、邻苯二甲酸二壬酯(CAS No.:68515-45-7)、邻苯二甲酸二异壬酯(CAS No.:28553-12-0)、邻苯二甲酸二异癸酯(CAS No.:26761-40-0)、邻苯二甲酸二(2-丙基)庚酯(CASNo.:53306-54-0)、邻苯二甲酸二(2-乙基)己酯(CAS No.:117-81-7)、对苯二甲酸二辛酯(CAS No.:6422-86-2)、偏苯三甲酸三辛酯(CAS No.:3319-31-1)、环己烷-1,2-二羧酸二异壬酯(CAS No.:166412-78-8)或环氧大豆油的任意一种或者两种以上任意重量比例的混合物。
作为进一步的改进,所述PVC糊树脂为聚合度900~1800的PVC糊树脂。
一种耐低温PVC输送带制备方法,包括下述步骤:
1)耐低温涂层的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,耐低温增塑剂2~10份,色浆0.1~3份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,填料5~15份,色浆0.1~3份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
本发明的耐低温PVC输送带,具备下述有益效果:耐低温PVC输送带中的耐低温涂层为含有癸二酸二辛酯的涂层,制得的耐低温PCV输送带在-30℃下运输测试,能够在运作600小时后依然不会发生接口开裂的现象,耐低温PVC输送带的拉伸强度达到10.1~11.5N/mm,断裂伸长率高达18.2%,能够在温度-30℃~0℃的温度范围下使用。
附图说明
图1耐低温PVC输送带结构示意图;
附图标记说明:1-耐低温PVC输送带,11-耐低温涂层、12-上织物层,13-中间涂层,14-下织物层。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚,以下结合实施例1~4对本发明作进一步说明:
实施例1
1)耐低温涂层的制备:将增塑剂30份,PVC糊树脂40份,热稳定剂1份,耐低温增塑剂2份,色浆1.6份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂30份,PVC糊树脂40份,热稳定剂1份,填料5份,色浆0.1份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂48份,PVC糊树脂40份,热稳定剂1份,甲苯-2,4-二异氰酸酯2份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
实施例2
一种耐低温PVC输送带,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂44.4份,PVC糊树脂48份,热稳定剂2份,耐低温增塑剂6份,色浆1.6份,所述中间涂层包括下述重量份数的组分:增塑剂36份,PVC糊树脂48份,热稳定剂2份,填料8份,色浆1.4份。
耐低温PVC输送带的制备步骤如下
1)耐低温涂层的制备:将增塑剂份,PVC糊树脂份,热稳定剂份,耐低温增塑剂份,色浆份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂36份,PVC糊树脂53份,热稳定剂2份,填料8份,色浆1.4份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,甲苯-2,4-二异氰酸酯1~3份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
实施例3
一种耐低温PVC输送带,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂48.4份,PVC糊树脂48份,热稳定剂2份,耐低温增塑剂8份,色浆1.6份,所述中间涂层包括下述重量份数的组分:增塑剂50份,PVC糊树脂53份,热稳定剂2份,填料12份,色浆1.4份。
耐低温PVC输送带的制备步骤如下
1)耐低温涂层的制备:将增塑剂份,PVC糊树脂份,热稳定剂份,耐低温增塑剂份,色浆份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,填料5~15份,色浆0.1~3份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,甲苯-2,4-二异氰酸酯1~3份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
实施例4
一种耐低温PVC输送带,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂60份,PVC糊树脂60份,热稳定剂2份,耐低温增塑剂10份,色浆1.6份,所述中间涂层包括下述重量份数的组分:增塑剂60份,PVC糊树脂60份,热稳定剂3份,填料15份,色浆3份。
耐低温PVC输送带的制备步骤如下
1)耐低温涂层的制备:将增塑剂份,PVC糊树脂份,热稳定剂份,耐低温增塑剂,色浆份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂,PVC糊树脂,热稳定剂,填料,色浆加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,甲苯-2,4-二异氰酸酯1~3份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
对比例
一种耐低温PVC输送带,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂44.4份,PVC糊树脂48份,热稳定剂2份,耐低温增塑剂0份,色浆1.6份,所述中间涂层包括下述重量份数的组分:增塑剂50份,PVC糊树脂53份,热稳定剂2份,填料12份,色浆1.4份。
耐低温PVC输送带的制备步骤如下
1)耐低温涂层的制备:将增塑剂,PVC糊树脂,热稳定剂,耐低温增塑剂,色浆份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,填料5~15份,色浆0.1~3份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,甲苯-2,4-二异氰酸酯1~3份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
表1实施例1~4及对比例中各原料组分及测试结果
由实施例1~4可知,方案2和3的1%拉伸强度,断裂伸长率,表面动摩擦系数和析出性能差异很小,都在合格范围内,而方案4加入过多的低温增塑剂癸二酸二辛酯,影响了材料力学性能,而且有增塑剂析出问题,进一步的影响了整体的相容性以及力学性能;再者,在-30℃下做输送带的动力测试,实施例1和对比例皆在200小时内产生接口开裂现象,方案2~4在600小时后依旧没有接口开裂的现象发生。
综上所述,低温增塑剂癸二酸二辛酯的最佳添加量为6~8份,在上述范围内可有效增加输送带的耐低温性能,但是当添加量达到10份以上,则会对拉伸轻度产生不利影响,增塑剂析出也会部分析出,本发明制备的耐低温PVC输送带,在低温条件下能够较好的使用,寿命长。
以上所述仅为本发明的优选实施方式,并非因此限制本发明的专利范围,凡是利用本发明所作的等效变换,均在本发明的专利保护范围内。

Claims (6)

1.一种耐低温PVC输送带,其特征在于,包括依次设置的耐低温涂层、上织物层、中间涂层和下织物层,所述耐低温涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂 40~60份,热稳定剂 1~3份,耐低温增塑剂2~10份,色浆0.1~3份,所述中间涂层包括下述重量份数的组分:增塑剂30~60份,PVC糊树脂 40~60份,热稳定剂 1~3份,填料5~15份,色浆0.1~3份。
2.根据权利要求1所述的耐低温PVC输送带,其特征在于,所述耐低温增塑剂为癸二酸二辛酯。
3.根据权利要求1所述的耐低温PVC输送带,其特征在于,所述填料为轻质活性碳酸钙。
4.根据权利要求1所述的耐低温PVC输送带,其特征在于,所述增塑剂为橡胶增塑剂、聚酯增塑剂、邻苯二甲酸二辛酯(CAS No.:123-79-5)、邻苯二甲酸二壬酯(CAS No.:68515-45-7)、邻苯二甲酸二异壬酯(CAS No.:28553-12-0)、邻苯二甲酸二异癸酯(CAS No.:26761-40-0)、邻苯二甲酸二(2-丙基)庚酯(CAS No.:53306-54-0)、邻苯二甲酸二(2-乙基)己酯(CAS No.:117-81-7)、对苯二甲酸二辛酯(CAS No.:6422-86-2)、偏苯三甲酸三辛酯(CAS No.:3319-31-1)、环己烷-1,2-二羧酸二异壬酯(CAS No.:166412-78-8)或环氧大豆油的任意一种或者两种以上任意重量比例的混合物。
5.根据权利要求3所述的耐低温PVC输送带,其特征在于,所述PVC糊树脂为聚合度900~1800的PVC糊树脂。
6.一种权利要求1~5任一项所述的耐低温PVC输送带制备方法,其特征在于,包括下述步骤:
1)耐低温涂层的制备:将增塑剂30~60份,PVC糊树脂 40~60份,热稳定剂 1~3份,耐低温增塑剂2~10份,色浆0.1~3份加入搅拌罐中,在300~400RPM的搅拌速度下,将PVC糊树脂继续加入搅拌罐中,8min内加完,持续搅拌20~30min制得耐低温涂层糊;
2)中间涂层的制备:将增增塑剂30~60份,PVC糊树脂 40~60份,热稳定剂 1~3份,填料5~15份,色浆0.1~3份加入到搅拌罐中,高速搅拌20~30min制得中间涂层糊;
3)上织物层和下织物层的准备
a粘合剂的制备:将增塑剂30~60份,PVC糊树脂40~60份,热稳定剂1~3份,甲苯-2,4-二异氰酸酯1~3份加入到搅拌罐中,搅拌20~30min,制成粘合剂;
b上织物层、下织物层与粘合剂的复合:粘合剂用于涂覆在上层织物的上、下面,和下层织物的上表面,涂层量为100~200g/m2,粘合剂渗透到织物中,再进入到热风烘箱,100~200℃温度下烘烤0.5~1.5 min,制得含粘合剂的上织物层和含粘合即的下织物层,收卷备用;
4)a耐低温涂层糊与上织物的涂覆:将步骤1)制得的耐低温涂层糊涂覆到含粘合剂的上织物表面,进入到热风烘箱,150~230℃温度下烘烤2~5min,得到耐低温涂层织物;
b中间涂层糊与下织物的涂覆:将步骤2)制得的中间涂层糊涂覆到含粘合剂的下织物表面,进入到热风烘箱,100~200℃温度下烘烤2~5min得到涂层织物;
c将耐低温涂层织物和涂层织物用两个压合辊在40~70KN的压力下进行热压贴合,再通过20~40℃的冷却辊冷却成型。
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