共查询到19条相似文献,搜索用时 171 毫秒
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以纺丝级聚酰胺(PA)6为载体树脂,酞菁蓝9680,K7090,BGSP–3SD为颜料,A–C540A,AClyn295A,A–C6A为分散剂制备纤维用蓝色母粒,并将制得的蓝色母粒用于PA6着色。用Datacolor测色仪测定材料的着色性能,用光学显微镜观察颜料的分散性,研究了三种颜料及三种分散剂对PA6纤维母粒色彩性能及分散性的影响。结果表明,三种颜料的着色力度相差不大,其中酞菁蓝9680分散相对较好;分散剂A–C540A相对更适用于PA6纤维原液着色,当其添加量为7%时,着色力达到119.73%,着色性能提高显著。 相似文献
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采用扫描电镜及粒径分析仪研究了水磨法超细BaSO4的形态及粒径分布,并将其应用于聚烯烃色母粒,探讨了超细BaSO4对红黄蓝3种色母粒彩色性能的影响,井将国内外颜料进行了对比。结果表明,用超细BaSO4替代20%颜料制备的色母粒,其颜料在塑料制品中的着色性能和分散性良好。其中BaSO4用于替代红颜料制备的色母粒效果最好。 相似文献
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《合成纤维工业》2015,(6):35-37
以酚类植物提取液为抗菌剂,聚己内酰胺(PA 6)为载体,制备抗菌母粒;采用抗菌母粒与PA 6切片共混纺丝,制备抗菌PA 6纤维,研究了其可纺性及抗菌性能。结果表明:该抗菌剂具有较好的抗菌效果,且对纺丝过程无明显影响;抗菌母粒中酚类植物提取液质量分数为10%,260℃时热失重率为4.2%,纺丝温度应小于260℃;共混纺丝时,抗菌母粒质量分数为3%,纺丝温度230~255℃,拉伸倍数5.3,纺丝顺利,无断头现象,所得抗菌PA 6纤维断裂强度为5.95 c N/dtex,断裂伸长率为35.3%,对大肠杆菌和金黄色葡萄球菌的抗菌率均达99%以上;抗菌PA 6纤维经高温染色后,抗菌性能略有下降,高温热水条件下耐久性欠佳,宜采用原液着色。 相似文献
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宋云华;范闯;王成忠;徐德胜;李革 《中国塑料》2010,24(2):21-25
用超分散剂在分散介质中预处理炭黑,然后将预处理后的炭黑与聚酰胺6(PA6)在转矩流变仪中共混,制备了PA6/炭黑色母料,并将该色母料添加到PA6中制备了PA6/炭黑复合材料。考察了不同超分散剂和分散介质对色母料加工性能的影响,通过扫描电子显微镜考察了超分散剂和分散介质对炭黑分散性能的影响,并对PA6/炭黑复合材料进行了力学性能测试。结果表明,N,N'-二甲基甲酰胺对炭黑粒子有很好的润湿性能;用超分散剂聚氨基甲酸酯预处理的炭黑在PA6中分散良好,分布均匀,平均粒径为50~70 nm;添加5 %色母料的PA6/炭黑复合材料的拉伸强度可达105.1 MPa,比纯PA6提高了38.72 %。 相似文献
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通过X射线光电子能谱仪、X射线衍射仪及扫描电镜对钴蓝颜料元素种类及含量、结晶性能、颜料粒子形貌及分布的研究,了解两种钴蓝颜料的微观差异;将两种钴蓝颜料应用于色母粒,采用积分球式测色仪、显微镜和熔体流动速率仪,分析了色母粒及其着色制品的着色力、分散性能、遮盖性能及色母粒的加工流动性能差异。结果表明,恰当的钴铝含量可以使钴蓝颜料在制品中有良好的着色效果;颜料表面元素中碳含量高有利于颜料在塑料中的分散,制备的色母粒加工流动性能更好;原生粒子小的钴蓝颜料充分分散后其着色效果比原生粒子大的更好;而对于40%钴蓝颜料含量的色母粒,采用5%的蜡作为分散剂,可以达到很好的分散效果。 相似文献
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The toughness behavior of 30 wt % glass fiber reinforced PA6/PA66 blends colored with different masterbatches containing carbon black (CB) was characterized by the instrumented Charpy impact test. Two different CB types with different particle diameters as well as two different polymers, PE and PA6, were used to prepare the masterbatches. The CB concentration was varied from 0 to 1.2 wt % in the compounds and all materials were examined dry and after water absorption. The toughness of the compounds significantly decreased when CB was incorporated. Moisture conditioning of the materials led to increased toughness and ductility but did not compensate for the negative influence of CB. Using PE as a masterbatch polymer succeeded in limiting the influence of CB on toughness whereas the largest particle diameter led to the highest reduction in toughness. By taking into account crack resistance curves, it could be shown that there is a significant change in crack propagation behavior when the concentration of the larger particle CB exceeds a certain level; this was ascribed to the existence of complex CB structures at this concentration. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 相似文献
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针对三聚氰胺氰尿酸盐(MCA)粉体对尼龙(PA)进行阻燃改性时,MCA分散性差,材料阻燃性能不稳定的问题,运用特殊的包覆工艺成功制得了PA基MCA母粒。将制得的MCA母粒及MCA粉体分别与PA6或PA66共混挤出,制得阻燃PA材料。对比分析了MCA母粒及MCA粉体阻燃PA6或PA66的垂直燃烧性能和力学性能。结果表明,与MCA粉体相比,MCA母粒可在MCA含量较低的情况下使厚度为0.8 mm及1.6 mm的阻燃PA6或PA66试样的垂直燃烧等级达到V–0级。MCA母粒及粉体对阻燃PA6的弯曲强度和PA66的拉伸强度影响很小,MCA母粒阻燃PA6的拉伸强度较粉体阻燃的高,而阻燃PA66的弯曲强度低;MCA母粒使阻燃PA的缺口冲击强度降低,而MCA粉体对PA的缺口冲击强度影响较小,当MCA含量较低时,MCA母粒阻燃PA的缺口冲击强度明显高于MCA粉体阻燃的PA。制备的MCA阻燃母粒对PA的阻燃效果不受黑色母料的影响,且具有较好的阻燃稳定性。 相似文献
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将多壁碳纳米管(MWNT)氧化后,酰氯化处理,在氨基封端的PA6聚合时加入,制备PA6/MWNT母粒,将母粒同PA6切片熔融共混纺丝,制备PA6/MWNT纤维。用INSTRON 1122型万能材料试验机测定纤维的力学性能。结果表明,改性MWNT的加入提高了PA6纤维的断裂强度,纤维中MWNT质量分数仅为0.05%时,纤维的断裂强度和初始模量最大,分别增加了60%和86%。用扫描电镜观察复合纤维的结构,发现MWNT均匀地分布在PA6中,并与PA6基体间有相互作用,沿纤维轴向取向。 相似文献
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Phase morphology evolution and compatibilization of immiscible polyamide 6/polystyrene blends using nano‐montmorillonite
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Jianbing Guo Yang Xu Weidi He Na Wang Mengqi Tang Xiaolang Chen Shijun Hu Min He Shuhao Qin 《Polymer Engineering and Science》2018,58(5):752-758
Nanocomposites of organic nano‐montmorillonite (nano‐OMMT)‐filled immiscible polyamide 6 (PA6)/polystyrene (PS) blends were prepared by three different processing methods. Masterbatch M1 of OMMT/PA6 and masterbatch M2 of OMMT/PS were prepared as separate masterbatchs by melt mixing with PA6 or PS, and then either mixed together or each mixed individually with appropriate amounts of PS or PA6, respectively. The effects of nano‐OMMT content and processing method on the structure, phase morphology, and mechanical properties of the PA6/PS/OMMT nanocomposites were investigated by X‐ray diffraction, transmission electron microscopy, scanning electron microscopy, and mechanical properties tests. The results showed that the nano‐OMMT by M1 and M2 masterbatches dispersed primarily as exfoliated platelets in the PA6 matrix in the final composites regardless of the method of preparation. A drastic decrease of dispersed PS phase size and a very homogeneous size distribution were observed with the addition of nano‐OMMT. The PA6/PS/OMMT nanocomposites prepared from the M2 displayed the smallest dispersed PS phase size and best distribution of OMMT. The improvement of the mechanical properties of the PA6/PS/OMMT nanocomposites was attributed to the enhanced compatibilization of the immiscible PA6/PS blends by using nano‐OMMT. POLYM. ENG. SCI., 2017. © 2017 Society of Plastics Engineers 相似文献
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High Density Polyethylene (HDPE) was melt extruded with different amounts of expanded graphite (EG) based masterbatches. Conductive composites were obtained by diluting PE and PS masterbatches with 60 wt% content of expanded graphite. These masterbatches were readily dispersed into the molten HDPE matrix yielding well‐dispersed HDPE/EG nanocomposites which couldn't be done by direct melt extrusion process under the same conditions. Electrical conductivity measurements showed a reduced percolation threshold by this masterbatch filling technique while the resulting composites were 2–3 orders of magnitude lower than that of direct melt extrusion because EG sheets were effectively encapsulated by PE or PS carriers in these masterbatches which leads to a better EG dispersion in composites. Both scanning electron microscopy (SEM) and X‐Ray diffraction (XRD) proved an excellent dispersion of EG in polymer matrix with the worm‐like structure tended to break into pieces under intensive rolling. The improvements in mechanical and thermal properties have been studied for the nanocomposites as prepared by masterbatch process. The results depended greatly on the dispersion of EG and the compatibility between masterbatch and HDPE matrix. POLYM. ENG. SCI., 47:882–888, 2007. © 2007 Society of Plastics Engineers 相似文献