CN107868216A - 聚醚型高密度网状棉的制备方法 - Google Patents

聚醚型高密度网状棉的制备方法 Download PDF

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CN107868216A
CN107868216A CN201711304323.XA CN201711304323A CN107868216A CN 107868216 A CN107868216 A CN 107868216A CN 201711304323 A CN201711304323 A CN 201711304323A CN 107868216 A CN107868216 A CN 107868216A
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谢小莲
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Abstract

本发明公开了一种聚醚型高密度网状棉的制备方法，由以下步骤制备而成：1）称取以下重量份数的各原料；2）首先在成型容器中加入聚醚多元醇、催化剂、水、匀泡剂搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌10‑20分钟，最后加入甲苯二异氰酸酯搅拌6‑20秒；待反应5‑8分钟后取出静置12‑24小时固化；3）将固化后的坯体切割成所需尺寸后开孔处理即可制得聚醚型高密度网状棉，所制备的制得聚醚型高密度网状棉能有效提高对陶瓷浆料的亲和力以及烧结后能加强陶瓷支撑部分抗冲击强度。

Description

聚醚型高密度网状棉的制备方法
技术领域
本发明涉及一种用于泡沫陶瓷生产的聚醚型高密度网状棉的制备方法。
背景技术
泡沫陶瓷是现代冶金业在冶炼、成型加工时必需的滤渣净洁耗材，它为三维空间网状结构。针对不同材质的治炼、浇铸用途，泡沫陶瓷需要有不同的耐高温、抗冲击性，而作为滤杂的泡沫陶瓷不仅要承耐高温，同时还要承受过滤时很强的液体冲击力，泡沫陶瓷的生产工序是:把三维空间网状通孔基材浸在调配好的黏稠陶瓷浆料里使其完全充实，再对基材进行辗压、排挤出多余的浆料，从而获得己具备通透要求的挂浆坯体。此时基材脉络丝上会粘附连续态的浆料，坯体经风干后进行高温烧结，浆料就转变成可耐高温、具有相当耐冲击性的泡沫陶瓷体。由此可见，基材脉络丝与浆料的亲合性、脉络丝的直径尺寸以及脉络丝的承载强度，将直接决定泡沫陶瓷制品支撑部份的尺寸与耐高温和抗冲击强度。因此研发出能有效提高对陶瓷浆料的亲和力以及烧结后能加强陶瓷支撑部分抗冲击强度的网状基材具有重要的意义。
发明内容
本发明所要解决的技术问题是，克服以上现有技术的缺点：提供一种能有效提高对陶瓷浆料的亲和力以及烧结后能加强陶瓷支撑部分抗冲击强度的聚醚型高密度网状棉的制备方法。
本发明的技术解决方案如下：一种聚醚型高密度网状棉的制备方法，由以下步骤制备而成：
1）称取以下重量份数的各原料：聚醚多元醇120-170份；催化剂0.2-1.0份；匀泡剂0.4-2.0份；水 2.5-3.6份；凹凸棒土粉1-3.6份；白炭黑0.2-1.6份；木质纤维素2-6份；甲苯二异氰酸酯36-50份；
2）首先在成型容器中加入聚醚多元醇、催化剂、水、匀泡剂搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌10-20分钟，最后加入甲苯二异氰酸酯搅拌6-20秒；待反应5-8分钟后取出静置12-24小时固化；
3）将固化后的坯体切割成所需尺寸后开孔处理即可制得聚醚型高密度网状棉。
所述匀泡剂为有机硅酮3901。
所述催化剂为N,N-二甲基苄胺、N,N-二甲基环己胺、辛酸亚锡、二月桂酸二丁基锡中的两种或两种以上。
所述凹凸棒土粉平均粒径为300-800nm。
步骤3）中，所述开孔处理具体为：将坯体置于开孔箱内，抽真空后，充入比例为1:1:2的乙炔、氢气和氧气至常压后静置2-15分钟，然后点火开孔。
作为优选，所述聚醚多元醇为聚醚多元醇3050、聚合物聚醚多元醇2045的混合物。
本发明的有益效果是：本发明通过在泡孔及脉络丝内引入一定粒度及比例的凹凸棒土粉与白炭黑，尤其加入木质纤维素，不但提高了对陶瓷浆料的亲和力，而且在作为三维空间网状通孔基材制备泡沫陶瓷时，所制备的泡沫陶瓷烧结后支撑部分抗冲击强度得到有效加强。
下面用具体实施例对本发明做进一步详细说明，但本发明不仅局限于以下具体实施例。
实施例一
按照以下步骤制备聚醚型高密度网状棉：
1）称取以下重量份数的各原料：聚醚多元醇3050 100份、聚合物聚醚多元醇2045 60份，N,N-二甲基苄胺0.4份，N,N-二甲基环己胺0.15份；辛酸亚锡 0.27份；水 2.7份；有机硅酮3901 0.8份；平均粒径为300-800nm凹凸棒土粉2份；白炭黑0.8份；木质纤维素6份；甲苯二异氰酸酯42份；
2）首先在成型容器中加入聚醚多元醇3050、聚合物聚醚多元醇2045、N,N-二甲基苄胺，N,N-二甲基环己胺，辛酸亚锡；有机硅酮3901搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌10-20分钟，最后加入甲苯二异氰酸酯搅拌6-20秒；待反应5-8分钟后取出静置12-24小时固化；
3）将固化后的坯体切割成所需尺寸后将坯体置于开孔箱内，抽真空后，充入比例为1:1:2的乙炔、氢气和氧气至常压后静置2-15分钟，然后点火开孔即可制得聚醚型高密度网状棉。
实施例二
按照以下步骤制备聚醚型高密度网状棉：
1）称取以下重量份数的各原料：聚醚多元醇3050 90份、聚合物聚醚多元醇2045 40份，N,N-二甲基苄胺0.5份，N,N-二甲基环己胺0.2份；辛酸亚锡 0.22份，水 3.0份，有机硅酮3901 1.0份；平均粒径为300nm凹凸棒土粉2份；白炭黑0.8份；木质纤维素2份；甲苯二异氰酸酯45份；
2）首先在成型容器中加入聚醚多元醇3050 、聚合物聚醚多元醇2045 、N,N-二甲基苄胺，N,N-二甲基环己胺，辛酸亚锡，水，有机硅酮3901搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌20分钟，最后加入甲苯二异氰酸酯搅拌8秒；待反应7分钟后取出静置24小时固化；
3）将固化后的坯体切割成所需尺寸后将坯体置于开孔箱内，抽真空后，充入比例为1:1:2的乙炔、氢气和氧气至常压后静置2-15分钟，然后点火开孔即可制得聚醚型高密度网状棉。
实施例三
按照以下步骤制备聚醚型高密度网状棉：
1）称取以下重量份数的各原料：聚醚多元醇120份，N,N-二甲基苄胺0.3份，N,N-二甲基环己胺0.25份；辛酸亚锡 0.24份，水 3.3份；有机硅酮3901 0.6份；平均粒径为300-800nm凹凸棒土粉2份；白炭黑0.8份；木质纤维素5份；甲苯二异氰酸酯48份；
2）首先在成型容器中加入聚醚多元醇、N,N-二甲基苄胺，N,N-二甲基环己胺，辛酸亚锡，水；有机硅酮3901搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌20分钟，最后加入甲苯二异氰酸酯搅拌7秒；待反应8分钟后取出静置24小时固化；
3）将固化后的坯体切割成所需尺寸后将坯体置于开孔箱内，抽真空后，充入比例为1:1:2的乙炔、氢气和氧气至常压后静置2-15分钟，然后点火开孔即可制得聚醚型高密度网状棉。
以上仅是本发明的特征实施范例，对本发明保护范围不构成任何限制。凡采用同等交换或者等效替换而形成的技术方案，均落在本发明权利保护范围之内。

Claims (5)

1.一种聚醚型高密度网状棉的制备方法，其特征在于：由以下步骤制备而成：
1）称取以下重量份数的各原料：聚醚多元醇120-170份；催化剂0.2-1.0份；匀泡剂0.4-2.0份；水 2.5-3.6份；凹凸棒土粉1-3.6份；白炭黑0.2-1.6份；木质纤维素2-6份；甲苯二异氰酸酯36-50份；
2）首先在成型容器中加入聚醚多元醇、催化剂、水、匀泡剂搅拌均匀，再加入凹凸棒土粉、白炭黑、木质纤维素搅拌10-20分钟，最后加入甲苯二异氰酸酯搅拌6-20秒；待反应5-8分钟后取出静置12-24小时固化；
3）将固化后的坯体切割成所需尺寸后开孔处理即可制得聚醚型高密度网状棉。
2.根据权利要求1所述的聚醚型高密度网状棉的制备方法，其特征在于：所述匀泡剂为有机硅酮3901。
3. 根据权利要求1所述的聚醚型高密度网状棉的制备方法，其特征在于：所述催化剂为N,N-二甲基苄胺、N,N-二甲基环己胺、辛酸亚锡、二月桂酸二丁基锡中的两种或两种以上。
4.根据权利要求1所述的聚醚型高密度网状棉的制备方法，其特征在于：所述凹凸棒土粉平均粒径为300-800nm。
5.根据权利要求1所述的聚醚型高密度网状棉的制备方法，其特征在于：步骤3）中，所述开孔处理具体为：将坯体置于开孔箱内，抽真空后，充入比例为1:1:2的乙炔、氢气和氧气至常压后静置2-15分钟，然后点火开孔。
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CN110872196A (zh) * 2019-12-10 2020-03-10 萍乡市恒升特种材料有限公司 一种空间网状泡沫陶瓷的制备方法

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Publication number Priority date Publication date Assignee Title
CN110862269A (zh) * 2019-12-10 2020-03-06 萍乡市恒升特种材料有限公司 一种高强度泡沫陶瓷的制备方法
CN110872196A (zh) * 2019-12-10 2020-03-10 萍乡市恒升特种材料有限公司 一种空间网状泡沫陶瓷的制备方法

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