CN105671963A - 抛光布的制造工艺 - Google Patents
抛光布的制造工艺 Download PDFInfo
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Abstract
本发明公开了一种抛光布的制造工艺，包括以下步骤：将双苯酚、多聚甲醛、有机酸以及、甲苯组成混合物，加热，并搅拌，此时放热激烈并停止加热；待温度自行上升随后温度开始下降，再重新加热，并保温反应；加入水和碳酸氢钠；冷却后，加入溶剂溶解合成出的酚醛树脂，备用；将尼龙纤维梳理成网得到不织布；将制备的酚醛树脂、增塑剂、渗透剂、消泡剂、乙二醇单乙基醚及水组成上胶液，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱烘干；将制备的酚醛树脂、磨料、消泡剂、水和乙烯单乙醚组成的上胶处理液，上胶处理液处理后，待树脂固化后，即得到抛光布。本发明制造的抛光布的抗撕拉强度优良，吸湿性亦有明显改观。
Description
技术领域
本发明涉及抛光布领域，特别是涉及一种抛光布的制造工艺。
背景技术
抛光布是由高档尼龙纤维（又称之为基材）、磨料和粘结剂通过特殊工艺处理加工而成的。抛光布制品的例子包括非织造磨料手工研磨垫，例如，以商品为“Scotch-brlte”由3MCompany（SaintPaulMinesota）销售的手工研磨垫。磨料制品的其他例子包括盘卷式和一体式研磨轮。抛光布通常具有分布在整个无纺布的尼龙纤维层中的磨料，尼龙纤维网层依靠粘结剂材料粘结在一起；粘结剂材料不但将抛光布的尼龙纤维层粘结在一起，而且将磨料粘结到抛光布纤维网中。例如，一体式研磨轮具有单独的抛光布网盘，这些纤维网盘以平行式布置而形成具有中空轴芯的圆柱体。作为另一种选择，盘卷式研磨轮具有以螺旋状设置并且固定到芯构件上的抛光布网。
然而，目前使用的抛光布的脆性与吸湿性影响着抛光布的品质。
发明内容
本发明主要解决的技术问题是提供一种抛光布的制造工艺，制造的抛光布的抗撕拉强度优良，吸湿性亦有明显改观。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种抛光布的制造工艺，包括以下步骤：
（1）酚醛树脂的制备：以重量计，将1800~2200份双苯酚，100~150份多聚甲醛，50~80份有机酸以及500~800份甲苯组成混合物，加热到60~80℃，并在此过程中搅拌10~30分钟，此时放热激烈并停止加热；15~25分钟后温度自行上升到85~95℃，随后温度开始下降，再重新加热，使温度上升到98~99℃并保温反应4.5~5.5小时；加入700~900份水和100~160份碳酸氢钠，中和未反应的有机酸；在压力作用下，蒸馏温度升到110~130℃，除去水和甲苯，冷却后，加入溶剂溶解合成出的酚醛树脂，过滤去除杂质，备用；
（2）将尼龙纤维梳理成网得到不织布；
（3）用上胶液预处理：将70~80份步骤（1）中制备的酚醛树脂，20~30份增塑剂，5~10份渗透剂，1~3份消泡剂，10~20份乙二醇单乙基醚及40~50份水组成上胶液，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱烘干；
（4）上胶处理：将900~1100份步骤（1）中制备的酚醛树脂，950~1050份磨料，1~3份消泡剂，50~70份水和20~30份乙烯单乙醚组成的上胶处理液，经充分雾化后喷洒到经预处理的不织布的一面，上胶处理液要渗液透到不织布厚度的一半或以上，待树脂固化后，将不织布翻过来，用同样的上胶处理液，同样的方法喷洒另一面的不织布，烘干使树脂全部固化，即得到抛光布。
在本发明一个较佳实施例中，步骤（1）中所述的双苯酚为3.3-乙二烯双苯酚。
在本发明一个较佳实施例中，步骤（1）中所述的有机酸为无水乙二酸。
在本发明一个较佳实施例中，步骤（1）中所述的溶剂为丙酮。
在本发明一个较佳实施例中，步骤（1）中在5mm汞柱压力作用下，蒸馏温度升到110~130℃。
在本发明一个较佳实施例中，步骤（3）中所述的增塑剂包括聚酰胺和聚乙二醇，聚酰胺和聚乙二醇的重量配比为1:3。
在本发明一个较佳实施例中，步骤（3）中所述的渗透剂为磺基琥珀酸二异辛脂钠盐。
在本发明一个较佳实施例中，步骤（3）中所述的消泡剂为硅酮。
在本发明一个较佳实施例中，步骤（3）中的烘箱温度为：150℃。
在本发明一个较佳实施例中，步骤（4）中所述的磨料为粒度为100~150目的碳化硅或粒度为100~150目的棕刚玉。
本发明的有益效果是：本发明制造的抛光布的抗撕拉强度优良，吸湿性亦有明显改观。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施例1
一种抛光布的制造工艺，包括以下步骤：
（1）酚醛树脂的制备：以重量计，将2000份3.3-乙二烯双苯酚，130份多聚甲醛，62.7份无水乙二酸以及627份甲苯组成混合物，加热到70℃，并在此过程中搅拌20分钟，此时放热激烈并停止加热；20分钟后温度自行上升到93℃，随后温度开始下降，再重新加热，使温度上升到98~99℃并保温反应5小时；加入800份水和130份碳酸氢钠，中和未反应的无水乙二酸；在5mm汞柱压力作用下，蒸馏温度升到120℃，除去水和甲苯，冷却后，加入丙酮溶剂溶解合成出的酚醛树脂，过滤去除杂质，备用；
（2）将尼龙纤维梳理成网得到不织布；
（3）用上胶液预处理：将75份步骤（1）中制备的酚醛树脂，25份增塑剂，7份磺基琥珀酸二异辛脂钠盐渗透剂，2份硅酮消泡剂，15份乙二醇单乙基醚及45份水组成上胶液，其中，所述的增塑剂包括聚酰胺和聚乙二醇（400），聚酰胺和聚乙二醇（400）的重量配比为1:3，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱在150℃烘干；
在本发明一个较佳实施例中，步骤（3）中所述的增塑剂包括聚酰胺和聚乙二醇，聚酰胺和聚乙二醇的重量配比为1:3。
在本发明一个较佳实施例中，步骤（3）中所述的渗透剂为。
（4）上胶处理：将1000份步骤（1）中制备的酚醛树脂，988份粒度为100~150目的碳化硅的磨料，2份消泡剂，60份水和25份乙烯单乙醚组成的上胶处理液，经充分雾化后喷洒到经预处理的不织布的一面，上胶处理液要渗液透到不织布厚度的一半或以上，待树脂固化后，将不织布翻过来，用同样的上胶处理液，同样的方法喷洒另一面的不织布，烘干使树脂全部固化，即得到抛光布。
实施例2
一种抛光布的制造工艺，包括以下步骤：
（1）酚醛树脂的制备：以重量计，将1800份3.3-乙二烯双苯酚，100份多聚甲醛，50份无水乙二酸以及500份甲苯组成混合物，加热到60℃，并在此过程中搅拌30分钟，此时放热激烈并停止加热；25分钟后温度自行上升到95℃，随后温度开始下降，再重新加热，使温度上升到98~99℃并保温反应4.5小时；加入700份水和100份碳酸氢钠，中和未反应的无水乙二酸；在5mm汞柱压力作用下，蒸馏温度升到110℃，除去水和甲苯，冷却后，加入丙酮溶剂溶解合成出的酚醛树脂，过滤去除杂质，备用；
（2）将尼龙纤维梳理成网得到不织布；
（3）用上胶液预处理：将70份步骤（1）中制备的酚醛树脂，20份增塑剂，5份磺基琥珀酸二异辛脂钠盐渗透剂，1份硅酮消泡剂，10份乙二醇单乙基醚及40份水组成上胶液，其中，所述的增塑剂包括聚酰胺和聚乙二醇（400），聚酰胺和聚乙二醇（400）的重量配比为1:3，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱在150℃中烘干；
（4）上胶处理：将900份步骤（1）中制备的酚醛树脂，950份粒度为100~150目的棕刚玉的磨料，1份消泡剂，50份水和20份乙烯单乙醚组成的上胶处理液，经充分雾化后喷洒到经预处理的不织布的一面，上胶处理液要渗液透到不织布厚度的一半或以上，待树脂固化后，将不织布翻过来，用同样的上胶处理液，同样的方法喷洒另一面的不织布，烘干使树脂全部固化，即得到抛光布。
实施例3
一种抛光布的制造工艺，包括以下步骤：
（1）酚醛树脂的制备：以重量计，将2200份3.3-乙二烯双苯酚，150份多聚甲醛，80份无水乙二酸以及800份甲苯组成混合物，加热到80℃，并在此过程中搅拌10分钟，此时放热激烈并停止加热；15分钟后温度自行上升到85℃，随后温度开始下降，再重新加热，使温度上升到98~99℃并保温反应5.5小时；加入900份水和160份碳酸氢钠，中和未反应的无水乙二酸；在5mm汞柱压力作用下，蒸馏温度升到130℃，除去水和甲苯，冷却后，加入丙酮溶剂溶解合成出的酚醛树脂，过滤去除杂质，备用；
（2）将尼龙纤维梳理成网得到不织布；
（3）用上胶液预处理：将80份步骤（1）中制备的酚醛树脂，30份增塑剂，10份磺基琥珀酸二异辛脂钠盐渗透剂，3份硅酮消泡剂，20份乙二醇单乙基醚及50份水组成上胶液，其中，所述的增塑剂包括聚酰胺和聚乙二醇（400），聚酰胺和聚乙二醇（400）的重量配比为1:3，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱在150℃中烘干；
（4）上胶处理：将1100份步骤（1）中制备的酚醛树脂，1050份粒度为100~150目的碳化硅的磨料，3份消泡剂，70份水和30份乙烯单乙醚组成的上胶处理液，经充分雾化后喷洒到经预处理的不织布的一面，上胶处理液要渗液透到不织布厚度的一半或以上，待树脂固化后，将不织布翻过来，用同样的上胶处理液，同样的方法喷洒另一面的不织布，烘干使树脂全部固化，即得到抛光布。
实施例1~实施例3制造的抛光布的性能检测数据如表1所示。
表1
本发明将3.3-乙二烯双苯酚替代苯酚，合成一种特殊的A型酚醛树脂。用这种A型酚醛树脂配制抛光布用处理液-上胶液时，引入含酰胺基的长链脂肪酸、磨料采用碳化硅或棕刚玉，用这种方法制成的抛光布，在研磨过程中尼龙纤维不断的损耗，新的磨料层不断地自然形成，使抛光布具有较长使用寿命的同时，又能使被加工工件品质保持一致，抛光布的抗撕拉强度优良，抛光布的吸湿性亦有明显改观。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。
Claims (10)
1.一种抛光布的制造工艺，其特征在于，包括以下步骤：
（1）酚醛树脂的制备：以重量计，将1800~2200份双苯酚，100~150份多聚甲醛，50~80份有机酸以及500~800份甲苯组成混合物，加热到60~80℃，并在此过程中搅拌10~30分钟，此时放热激烈并停止加热；15~25分钟后温度自行上升到85~95℃，随后温度开始下降，再重新加热，使温度上升到98~99℃并保温反应4.5~5.5小时；加入700~900份水和100~160份碳酸氢钠，中和未反应的有机酸；在压力作用下，蒸馏温度升到110~130℃，除去水和甲苯，冷却后，加入溶剂溶解合成出的酚醛树脂，过滤去除杂质，备用；
（2）将尼龙纤维梳理成网得到不织布；
（3）用上胶液预处理：将70~80份步骤（1）中制备的酚醛树脂，20~30份增塑剂，5~10份渗透剂，1~3份消泡剂，10~20份乙二醇单乙基醚及40~50份水组成上胶液，将不织布浸入上胶液中进行预粘结处理，使不织布纤维相互粘接，并进入烘箱烘干；
（4）上胶处理：将900~1100份步骤（1）中制备的酚醛树脂，950~1050份磨料，1~3份消泡剂，50~70份水和20~30份乙烯单乙醚组成的上胶处理液，经充分雾化后喷洒到经预处理的不织布的一面，上胶处理液要渗液透到不织布厚度的一半或以上，待树脂固化后，将不织布翻过来，用同样的上胶处理液，同样的方法喷洒另一面的不织布，烘干使树脂全部固化，即得到抛光布。
2.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（1）中所述的双苯酚为3.3-乙二烯双苯酚。
3.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（1）中所述的有机酸为无水乙二酸。
4.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（1）中所述的溶剂为丙酮。
5.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（1）中在5mm汞柱压力作用下，蒸馏温度升到110~130℃。
6.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（3）中所述的增塑剂包括聚酰胺和聚乙二醇，聚酰胺和聚乙二醇的重量配比为1:3。
7.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（3）中所述的渗透剂为磺基琥珀酸二异辛脂钠盐。
8.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（3）中所述的消泡剂为硅酮。
9.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（3）中的烘箱温度为150℃。
10.根据权利要求1所述的抛光布的制造工艺，其特征在于，步骤（4）中所述的磨料为粒度为100~150目的碳化硅或粒度为100~150目的棕刚玉。
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