CN103946177A - 包含芳族聚酰胺浆和填充材料的团粒 - Google Patents
包含芳族聚酰胺浆和填充材料的团粒 Download PDFInfo
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Abstract
本发明涉及包含芳族聚酰胺浆和填充材料的团粒，其中团粒包含至多90重量％芳族聚酰胺浆和至少10重量％填充材料。本发明还涉及生产该团粒的方法。
Description
本发明涉及包含芳族聚酰胺浆和填充材料的团粒。
由浆和其它材料构成的团粒是现有技术已知的。在文件US2004/0043217中，将浆与辅助剂混合，由此对于混合方法，使用液体。所得团粒中辅助剂的量是小的且在该文件中没有提到芳族聚酰胺。文件DE102004027239描述了制粒的方法。在该方法中，也使用液体。
现有技术的缺点是团粒含有少量填充材料且由于生产方法中液体的使用，团粒是难以在另一工艺步骤中破裂。
因此，本发明的目的是提供在其它加工步骤中容易分离成其单独组分的团粒。
该目的通过具有权利要求1的特征的团粒实现。
该目的还通过由芳族聚酰胺浆、填充材料和水分组成的团粒实现，其中团粒包含至多90重量％芳族聚酰胺浆和至少10重量％填充材料。
由于相对于芳族聚酰胺浆的量，高量的填充材料，浆的小纤维分裂，且团粒的浆在其它加工步骤中可比现有技术团粒容易地破裂。
优选团粒包含至多80重量％芳族聚酰胺浆和至少20重量％填充材料。还优选团粒包含至多70重量％芳族聚酰胺浆和至少30重量％填充材料。团粒可包含至少70至至多90重量％芳族聚酰胺浆和至少10至至多30重量％填充材料。
优选，团粒包含25-75重量％芳族聚酰胺浆和25-75重量％填充材料。在另一实施方案中，团粒包含40-90重量％芳族聚酰胺浆和10-60重量％填充材料。
如果填充材料的量是高的，则芳族聚酰胺浆更好的分裂，且与团粒中具有较低填充材料浓度的团粒相比，团粒在其它加工步骤中容易地破裂。
优选，团粒包含小于10重量％水分。在优选实施方案中，团粒仅通过芳族聚酰胺浆和填充材料制备，这意指在生产方法中不具有其它液体。因此，团粒仅包含大气水分且不包含其它水分。优选填充材料以及芳族聚酰胺浆包含小于10重量％水分，因此，团粒也包含小于10重量％水分。在优选实施方案中，团粒包含小于8重量％水分，尤其优选小于6重量％水分。本领域技术人员清楚水分的量、芳族聚酰胺浆的量和填充材料的量基于团粒的重量为100％。在优选实施方案中，在产生团粒以前将浆和填充材料干燥。在该实施方案中，团粒大约不含水分，这意指团粒包含小于5重量％，尤其优选小于2重量％水分。为使团粒防止水分，优选向团粒提供隔离涂层，因此具有不透水涂层。由于团粒的涂层，而不是浆和填充材料的涂层，浆性能以及填充材料性能不受涂层影响。
在优选实施方案中，填充材料为硫酸钡、碳酸钙、云母、蛭石、碱金属钛酸盐、三氧化钼、腰果粉、橡胶粉、石墨、金属硫化物、金属氧化物、金属硅酸盐或其混合物。
在优选实施方案中，团粒具有球形式或冰球(puck)形式。球形式或冰球形式具有这一优点：在团粒的运输期间，保护团粒以防损害。这意指团粒不具有在团粒运输期间可能破坏的角。
优选，芳族聚酰胺浆为对芳族聚酰胺浆。
在优选实施方案中，团粒具有等于或高于芳族聚酰胺浆的高岭土保持力的高岭土保持力。浆的高岭土保持力如US2010/0310868所述测定。在高速立式混合机中制备97％高岭土(Laude SP20)与3％芳族聚酰胺浆的混合物。将20g混合物在粗筛装置上使用250目筛筛分。作为初始量的百分数给出的筛上的剩余材料测定为高岭土保持力。
为测定团粒的高岭土保持力，必须考虑存在于团粒中的填充材料的量。如果团粒包含基于团粒的总重量为x重量％的量的填充材料，则团粒和高岭土的混合物由(97-3·x/100)重量％高岭土和(3+3·x/100)重量％团粒制备，这相当于3重量％浆。也如上文所述测试该混合物。
高岭土保持力为芳族聚酰胺浆保留作为填充材料的高岭土的能力。优选，该能力至少由团粒保持，且芳族聚酰胺浆的高岭土保持力不会通过制备团粒的步骤而降低。
本发明的另一目的是制备团粒的方法。
在制备团粒的方法中，将至多90重量％芳族聚酰胺浆与至少10重量％填充材料混合，其后压制成团粒，由此，芳族聚酰胺浆和填充材料的混合物的含水量为小于10重量％，并在不存在液体下将混合物压制成团粒。在生产方法中，团粒由芳族聚酰胺浆和填充材料的干混合物压制，由此，团粒中小于10重量％的含水量由大气水分产生。
优选，芳族聚酰胺浆和填充材料的混合物包含至多80重量％芳族聚酰胺浆和至少20重量％填充材料，更优选70重量％芳族聚酰胺浆和30重量％填充材料。
在一个优选实施方案中，将芳族聚酰胺浆和填充材料干燥，由此，分别将芳族聚酰胺浆和填充材料干燥或者将芳族聚酰胺浆和填充材料的混合物干燥。在另一优选实施方案中，将获得的团粒干燥。术语“干燥”意指芳族聚酰胺浆、填充材料、芳族聚酰胺浆与填充材料的混合物或者获得的团粒包含小于5重量％水分，更优选小于2重量％水分。优选将隔离涂层施涂于获得的团粒上。隔离涂层保护团粒以防水分。
优选在压制步骤中使用至少2巴且至多7巴，优选至多5巴的压力。由于压制步骤中的低压力，团粒对团粒的运输而言是足够刚性的，但团粒的密度不是极高的。由于低密度，芳族聚酰胺浆以及填充材料在团粒的破裂以后是“松软的”。
优选，方法在约20℃的温度下进行。20℃的温度涉及正常室温。有利地，对于团粒生产方法，不需要热能，这保护环境且节约生产成本。
混合步骤可在装配有混合叶片和高旋转装置，也称为切碎机的混合机中进行。该机器可由德国的公司得到。混合时间可以为1-5分钟。向团粒形成装置中供入混合物并在室温下施加压力。在压制步骤以后，还可将团粒在加热室中在优选105℃的温度下干燥以除去残留水分。还将隔离涂层施涂于团粒上以防潮。
Claims (16)
1.包含芳族聚酰胺浆和填充材料的团粒，其中团粒包含至多90重量％芳族聚酰胺浆和至少10重量％填充材料。
2.由芳族聚酰胺浆、填充材料和水分组成的团粒，其中团粒包含至多90重量％芳族聚酰胺浆和至少10重量％填充材料。
3.根据权利要求1或2的团粒，其中团粒包含至多80重量％芳族聚酰胺浆和至少20重量％填充材料。
4.根据权利要求1或2的团粒，其中团粒包含至多70重量％芳族聚酰胺浆和至少30重量％填充材料。
5.根据权利要求1或2的团粒，其中团粒包含25-75重量％芳族聚酰胺浆和25-75重量％填充材料。
6.根据权利要求1或2的团粒，其中团粒包含40-90重量％芳族聚酰胺浆和10-60重量％填充材料。
7.根据前述权利要求中至少一项的团粒，其中团粒包含小于10重量％水分。
8.根据前述权利要求中至少一项的团粒，其中芳族聚酰胺浆为对-芳族聚酰胺浆。
9.根据前述权利要求中至少一项的团粒，其中填充材料为硫酸钡、碳酸钙、云母、蛭石、碱金属钛酸盐、三氧化钼、腰果粉、橡胶粉、石墨、金属硫化物、金属氧化物、金属硅酸盐或其混合物。
10.根据前述权利要求中至少一项的团粒，其中团粒为球形式或冰球形式。
11.根据前述权利要求中至少一项的团粒，其中团粒具有隔离涂层。
12.根据前述权利要求中至少一项的团粒，其中团粒具有等于或高于芳族聚酰胺浆的高岭土保持力的高岭土保持力。
13.制备团粒的方法，其中将至多90重量％芳族聚酰胺浆与至少10重量％填充材料混合，其后压制成团粒，其中芳族聚酰胺浆和填充材料的混合物的含水量为小于10重量％，并将混合物在不存在液体下压制成团粒。
14.根据权利要求13的方法，其中使用至少2巴且至多7巴，优选至多5巴的压力。
15.根据前述权利要求13-14中任一项的方法，其中方法在约20℃的温度下进行。
16.根据前述权利要求13-15中任一项的方法，其中将隔离涂层施涂于团粒上。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11188011 | 2011-11-07 | ||
| EP11188011.8 | 2011-11-07 | ||
| PCT/EP2012/072014 WO2013068390A1 (en) | 2011-11-07 | 2012-11-07 | Pellet comprising aramid pulp and filler material |
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| Publication Number | Publication Date |
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| CN103946177A true CN103946177A (zh) | 2014-07-23 |
| CN103946177B CN103946177B (zh) | 2017-05-10 |
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|---|---|
| US (1) | US9023178B2 (zh) |
| EP (1) | EP2776375B1 (zh) |
| JP (1) | JP5926811B2 (zh) |
| KR (1) | KR20140096050A (zh) |
| CN (1) | CN103946177B (zh) |
| DK (1) | DK2776375T3 (zh) |
| ES (1) | ES2550985T3 (zh) |
| RU (1) | RU2606438C2 (zh) |
| WO (1) | WO2013068390A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529210A (zh) * | 2014-12-08 | 2015-04-22 | 江苏奥米建材科技有限公司 | 一种亲水性保坍矿物复合纤维颗粒及其制备方法 |
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| CN104529210A (zh) * | 2014-12-08 | 2015-04-22 | 江苏奥米建材科技有限公司 | 一种亲水性保坍矿物复合纤维颗粒及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US9023178B2 (en) | 2015-05-05 |
| DK2776375T3 (en) | 2015-10-19 |
| ES2550985T3 (es) | 2015-11-13 |
| KR20140096050A (ko) | 2014-08-04 |
| EP2776375A1 (en) | 2014-09-17 |
| JP5926811B2 (ja) | 2016-05-25 |
| US20140299285A1 (en) | 2014-10-09 |
| EP2776375B1 (en) | 2015-09-16 |
| RU2606438C2 (ru) | 2017-01-10 |
| WO2013068390A1 (en) | 2013-05-16 |
| RU2014118471A (ru) | 2015-12-20 |
| JP2015504376A (ja) | 2015-02-12 |
| CN103946177B (zh) | 2017-05-10 |
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