CN109517537A - 一种含有c5石油树脂并丁基胶囊再生胶的丁基压敏胶 - Google Patents
一种含有c5石油树脂并丁基胶囊再生胶的丁基压敏胶 Download PDFInfo
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Abstract
一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,涉及一种丁基压敏胶,本发明通过改变不同的配方制得压敏胶,来改变其粘合性、强度,以达到最佳效果,其特征在于所用基体橡胶为丁基橡胶(IIR‑1953)以及丁基胶囊再生胶,所用增粘剂为C5石油树脂,所用的增塑剂为与丁基橡胶有良好相容性且不易抽出的低分子量的PIB,所用的填料为碳酸钙,所用防老剂为SEBS和4010NA配合。并对丁基压敏胶的耐热性、初粘性、持粘性、剪切强度、剥离强度等性能进行研究,最终确定最佳的丁基防水卷材压敏胶配方。本发明压敏胶用于涂覆防水卷材制成胶带以粘接卷材、彩钢板、水泥等材料。且各项性能均均远超国标GB/T23260‑2009。
Description
技术领域
本发明涉及一种丁基压敏胶,特别是涉及一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶。
背景技术
世界各国的压敏胶制品工业均开始于医药行业的膏药制剂。很早以前, 古中国、古埃及、古印度就有从松脂、动物胶、蜜蜡等材料熬制成医药膏贴和捕捉虫鸟粘网等的应用,形成了压敏胶制品的雏形。近年来,由于防水卷材是建筑业及有关行业所需要的重要功能材料,故用于防水卷材的压敏胶便成为了必不可少的需求。
丁基胶囊再生胶(RIIR)是一种废弃橡胶,它可经过一系列的加工工序而获得具有一定的生胶性能。RIIR与IIR的相容性较好,将其复配IIR制备压敏胶具有一定的环保价值,也可以节约生产成本。同时,RIIR中含有可溶性橡胶、不溶性凝胶、游离硫、树脂及硫黄促进剂体系的残留物,可保证压敏胶的耐热性和耐老化性。
如何确定IIR与RIIR的最佳配比,在制得综合性能较好的压敏胶的同时,又可以节约生产成本,本实验从此角度出发,对配方做进一步改进,制得一种初粘性优良且持粘标准的丁基防水卷材压敏胶,使其达到国家标准。
发明内容
本发明的目的是提供一种含有C5石油树脂并含有丁基胶囊再生胶的丁基压敏胶的制备方法,提升PSA的粘结性,使其成为建筑业及有关行业所需要的重要功能材料。
本发明一种含有C5石油树脂并含有丁基胶囊再生胶的丁基压敏胶,由以下质量份的组成物组成:基体橡胶IIR 0~100份,增粘树脂C5石油树脂0~120份,2种不同的低分子量的增塑剂PIB 0~200份,填料CaCO3 190份,丁基胶囊再生胶5~40份,丁基水胎再生胶5~15份,SEBS(氢化苯乙烯-丁二烯嵌段共聚物)0~5份,4010NA(N-异丙基-N’-苯基对苯二胺)0~5份,氢化C5石油树脂0~115份。
本发明所述的基体橡胶IIR牌号为IIR-1953,其是由异丁烯(IB)与少量异戊二烯合成的共聚物,和聚异丁烯有着非常接近的分子结构,是具有优良性能的合成橡胶。
本发明所述的增粘剂为C5石油树脂,又称碳五树脂,在一定范围内,随着C5石油树脂用量的不断增加PSA的粘接性能随之降低,剪切强度有所增加,内聚强度随之增加。
本发明所述的增塑剂为低分子量大分子增塑剂聚异丁烯(PIB),其分子量相对普通酯类增塑剂较大,高温时不易迁移,使所制得的PSA低温下的初粘性好,增加了聚合物分子链的活动性,消弱PSA中的分子间力,提高了伸长率,曲挠性和柔韧性。
本发明所述的填料为轻钙、陶土和超细滑石粉中的一种或几种。填料的加入能使其成本降低,改善压敏胶的加工性能,提高了胶粘剂的稳定性和耐老化性。
本发明所述的制胶方法是将混炼胶置于140℃的转矩流变仪25min左右,制得丁基橡胶压敏胶,再在145℃左右涂胶制样,以测其性能。所制得的压敏胶的耐热性、剥离强度、持粘性、剪切强度均有增强,在一定程度上提升了PSA的物理性能和机械性能。
本发明所述的丁基橡胶压敏胶的耐热性能, 按照GB/T328.11-2007标准进行测试,持粘性按照GB/T4851-1998标准进行测试,剪切强度按照GB12953-2003标准进行测试,剥离强度按照GB2792-1998标准进行测试,初粘性能的测试,在定温(30℃)、定压(0.6MPa)、一定的转力下,在硫化仪中测定M的平均值来表示初粘性。以上测试结果符合GB/T23260-2009。
具体实施方式
本发明实验所用仪器:SF-400电子秤,永康市千团贸易有限公司;GT-7017-M型热空气老化试验箱,台湾高铁科技股份有限公司;CZY-6S型压敏胶带持粘性测试仪, 济南兰光机电技术有限公司;DHG-9023AS型新型电热恒温鼓风干燥箱,宁波江南仪器厂;RGD-5电子拉力试验机,深圳市瑞格尔仪器有限公;CTR-100转矩流变仪,上海昌凯机电科技有限公司。
本实验所用原料:丁基橡胶(IIR-1953),工业级,保定京博橡胶有限公司;丁基胶囊再生基,工业级,鸿运特种再生橡胶有限公司;丁基水胎再生胶,工业级,鸿运特种再生橡胶有限公司;碳酸钙,工业级,海城华丰矿产品有限公司;PIBⅠ、Ⅱ,工业级,山东鸿瑞石油化工有限公司;C5石油树脂,工业级,濮阳恒丰石油化工有限公司;彩钢板,工业级,沈阳金童净化彩板有限公司;SEBS,工业级,巴陵石化有限公司;4010NA,工业级,上海程锦化工有限公司;氢化C5石油树脂,工业级,石家庄市茂丰化工有限公司。
实例一:在转矩流变仪上放入95g丁基橡胶与丁基胶囊再生胶5g进行密炼,再依次加入增粘剂C5石油树脂70g,填料CaCO3 190g,最后加入增塑剂低分子量聚异丁烯PIBⅠ 95g,均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表1。
实例二:本实施例的组成物与实施例1基本相同,区别在于用115g PIBⅠ代替95gPIBⅠ,实验方法与实施例1相同,在此不再赘述。
实例三:本实施例的组成物与实施例1基本相同,区别在于用135g PIBⅠ代替95gPIBⅠ,实验方法与实施例1相同,在此不再赘述。
实例四:本实施例的组成物与实施例1基本相同,区别在于用155g PIBⅠ代替95gPIBⅠ,实验方法与实施例1相同,在此不再赘述。
实验五:本实施例的组成物与实施例1基本相同,区别在于用175g PIBⅠ代替95gPIBⅠ,实验方法与实施例1相同,在此不再赘述。
实验六:本实施例的组成物与实施例1基本相同,区别在于用195g PIBⅠ代替95gPIBⅠ,实验方法与实施例1相同,在此不再赘述。
实验七:在转矩流变仪上放入90g丁基橡胶与丁基胶囊再生胶 10g进行密炼,再依次加入增粘剂C5石油树脂90g,填料CaCO3190g,最后加入增塑剂低分子量聚异丁烯PIBⅠ95g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表2。
实验八:本实施例的组成物与实施例7基本相同,区别在于用85g丁基橡胶代替90g丁基橡胶,用15g丁基胶囊再生胶代替10g丁基胶囊再生胶,实验方法与实施例7相同,在此不再赘述。
实验九:本实施例的组成物与实施例7基本相同,区别在于用80g丁基橡胶代替90g丁基橡胶,用20g丁基胶囊再生胶代替10g丁基胶囊再生胶,实验方法与实施例7相同,在此不再赘述。
实验十:本实施例的组成物与实施例7基本相同,区别在于用75g丁基橡胶代替90g丁基橡胶,用25g丁基胶囊再生胶代替10g丁基胶囊再生胶,实验方法与实施例7相同,在此不再赘述。
实验十一:本实施例的组成物与实施例7基本相同,区别在于用70g丁基橡胶代替90g丁基橡胶,用30g丁基胶囊再生胶代替10g丁基胶囊再生胶,实验方法与实施例7相同,在此不再赘述。
实验十二:本实施例的组成物与实施例7基本相同,区别在于用65g丁基橡胶代替90g丁基橡胶,用35g丁基胶囊再生胶代替10g丁基胶囊再生胶,实验方法与实施例7相同,在此不再赘述。
实验十三:在转矩流变仪上放入85g丁基橡胶与丁基胶囊再生胶 15g密炼,再依次加入增粘剂C5石油树脂90g,填料CaCO3190g,最后加入增塑剂低分子量聚异丁烯PIBⅡ 95g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表3。
实验十四:本实施例的组成物与实施例13基本相同,区别在于用100g C5石油树脂代替90g C5石油树脂,实验方法与实施例13相同,在此不再赘述。
实验十五:本实施例的组成物与实施例13基本相同,区别在于用110g C5石油树脂代替90g C5石油树脂,实验方法与实施例13相同,在此不再赘述。
实验十六:本实施例的组成物与实施例13基本相同,区别在于用120g C5石油树脂代替90g C5石油树脂,实验方法与实施例13相同,在此不再赘述。
实验十七:在转矩流变仪上放入75g丁基橡胶与丁基胶囊再生胶25g,再和10g丁基水胎再生胶进行密炼,再依次加入增粘剂C5石油树脂110g,填料CaCO3 190g,最后加入增塑剂低分子量聚异丁烯PIBⅡ 110g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表4。
实例十八:本实施例的组成物与实施例17基本相同,区别在于用120g PIBⅡ代替110g PIBⅡ,实验方法与实施例17相同,在此不再赘述。
实例十九:本实施例的组成物与实施例17基本相同,区别在于用130g PIBⅡ代替110g PIBⅡ,实验方法与实施例17相同,在此不再赘述。
实例二十:本实施例的组成物与实施例17基本相同,区别在于用140g PIBⅡ代替110g PIBⅡ,实验方法与实施例17相同,在此不再赘述。
实验二十一:在转矩流变仪上放入85g丁基橡胶与丁基胶囊再生胶 15g密炼,再依次加入增粘剂C5石油树脂90g,填料陶土190g,最后加入增塑剂低分子量聚异丁烯PIBⅡ115g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表5。
实验二十二:在转矩流变仪上放入85g丁基橡胶与丁基胶囊再生胶 15g密炼,再依次加入增粘剂C5石油树脂90g,填料滑石粉190g,最后加入增塑剂低分子量聚异丁烯PIBⅡ115g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表5。
实验二十三:在转矩流变仪上放入85g丁基橡胶与丁基胶囊再生胶 15g密炼,再依次加入增粘剂C5石油树脂110g,填料碳酸钙190g,再加入增塑剂低分子量聚异丁烯PIBⅡ95g,最后加入SEBS 1g和4010NA 0.1g均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表6。
实验二十四:在转矩流变仪上放入85g丁基橡胶与丁基胶囊再生胶 15g密炼,再依次加入增粘剂氢化C5石油树脂110g,填料碳酸钙190g,最后加入增塑剂低分子量聚异丁烯PIBⅡ 95g,均匀混合25min后得到混炼胶,再将其置于145℃的电热恒温鼓风干燥箱中涂胶制样,测其耐热性,初黏值,持粘时间,剪切强度,剥离强度等这些性能,见表6。
本发明实施例和对比例的性能比较
表1
表2
表3
表4
表5
表6
Claims (7)
1.一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,其PSA由以下质量份数的材料组成:基体橡胶IIR 0~100份,增粘树脂C5石油树脂0~100份,2种不同的低分子量的增塑剂PIB 0~200份,填料CaCO3 190份,丁基胶囊再生胶5~40份,丁基水胎再生胶5~15份,SEBS(氢化苯乙烯-丁二烯嵌段共聚物)0~5份,4010NA(N-异丙基-N’-苯基对苯二胺)0~5份,氢化C5石油树脂0~115份。
2.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA的制作,包括将混炼胶置于140℃的转矩流变仪25min制得丁基橡胶压敏胶,再在145℃涂胶,以测其性能。
3.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA所用的增粘剂为C5石油树脂。
4.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA所用填料为轻质碳酸钙。
5.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA所用的增塑剂为低相对分子质量的聚异丁烯(PIB);对于聚异丁烯聚合度较高的呈无色橡胶态,聚合度较低的呈无色粘糊状。
6.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA所用的基体橡胶为丁基胶囊再生胶。
7.根据权利要求1所述的一种含有C5石油树脂并丁基胶囊再生胶的丁基压敏胶,其特征在于,所述PSA所用的防老剂为SEBS,其是以聚丁二烯加氢得到的乙烯-丁烯共聚物为中间弹性嵌段的线性三嵌共聚物。
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