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本发明公开了一种抗菌PA,由抗菌PA母粒和增强PA塑料混合制备而成,两种原料的质量配比为抗菌PA母粒:增强PA=1:9~30,所述抗菌PA母粒主要由无机抗菌剂和PA两种原料制成,其中无机抗菌剂占抗菌PA母粒的质量分数为0.5%~50%,PA占抗菌PA母粒的质量分数为45%~95%。本发明抗菌PA的制备采用两步法,第一步制备抗菌PA母粒,第二步将抗菌PA母粒均匀分散在增强PA塑料中制得抗菌PA塑料材料。 相似文献
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将无毒、抗菌谱广、抗菌效率高、热稳定性好的载银无机抗菌剂与PE熔融挤出制备了打孔膜用抗菌母粒,研究了抗菌母粒的添加对打孔膜的抗菌性能、光老化性能、安全卫生性能的影响。研究结果表明:抗菌母粒属实际无毒级物质;随着抗菌母粒的增加,抗菌打孔膜的抗菌性能增加;当抗菌母粒的添加量为4.0%时,即抗菌剂在打孔膜中的质量百分含量为1.0%时,抗菌打孔膜的性价比最佳。 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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对抗菌沸石进行超细化粉碎和表面改性处理,制备了PET纤维抗菌母粒。采用13X沸石,通过气 流粉碎与砂磨或与重力沉降相组合的工艺制得平均粒径约1 μm的沸石,再通过液相离子交换法制备复合 金属离子抗菌沸石,其相对抑菌强度(D值)优于日本AGZ-330抗菌剂;采用硅烷偶联剂及分散剂对沸石进 行了表面改性和包覆处理,通过扫描电镜照片分析,评价了超细沸石颗粒在PET基体中的分散性,其母粒的 DF测试值为0.187 MPa·cm2/g。PET纤维中添加5%的抗菌母粒,纺丝正常。 相似文献
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油酸酰胺改性载银磷酸锆/聚乙烯抗菌薄膜的研究 总被引:2,自引:1,他引:1
以油酸酰胺为改性剂,载银磷酸锆为抗菌剂,线型低密度聚乙烯为载体树脂,制备了抗菌母粒和抗菌聚乙烯薄膜。用吸水性测定法、红外光谱法分析载银磷酸锆的改性效果,用扫描电镜观察载银磷酸锆在聚乙烯基材中的分散情况,检测了薄膜的力学性能、透光率、透气量、抗菌率。结果表明:经油酸酰胺改性的载银磷酸锆疏水性好,在基体中分散均匀;当抗菌母粒含量为5%时,聚乙烯薄膜的纵向拉伸强度和横向直角撕裂强度略有下降,断裂伸长率、横向拉伸强度、纵向直角撕裂强度均有不同程度的提高,透光率下降3.4%,透气量提高30.18%,抗菌率达99%以上。 相似文献
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PP-g-MAH/OMMT阻燃母料的制备及其在PP中的应用 总被引:1,自引:0,他引:1
以聚丙烯接枝马来酸酐(PP-g-MAH)和有机蒙脱土(OMMT)为原料,通过熔融插层制备了PP-g-MAH/OMMT纳米复合阻燃母料,利用X射线衍射(XRD)及热失重分析(TGA)对其进行了表征,并将其与碱式硫酸镁晶须(MOS)复配,制备了阻燃性能及力学性能优良的阻燃PP。结果表明,PP-g-MAH能够插层进入OMMT层间,形成插层型纳米复合物;PP-g-MAH/OMMT中PP-g-MAH的外推起始失重温度由纯PP-g-MAH的269.8℃提高到375.6℃。以PP-g-MAH/OMMT及MOS制备的阻燃PP的热释放速率峰值(PHRR)和平均热释放速率(MHRR)分别为163.7kW/m2和117.9kW/m2,比基体树脂下降了80.3%和70.9%。 相似文献
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以尼龙1012为基体,通过熔融挤出的方法,制备了尼龙1012/MP、尼龙1012/MPP、尼龙1012/RP3种阻燃尼龙,并对这3种阻燃尼龙进行了力学性能研究。 相似文献
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Qi Wang Yinghong Chen Yuan Liu Huan Yin Nico Aelmans Rene Kierkels 《Polymer International》2004,53(4):439-448
A novel way of preparing an intumescent flame retardant (IFR) and its master batch by the reactive extrusion of melamine phosphate and pentaerythritol, together with a polypropylene (PP) carrier, in a twin-screw extruder has been established. The effect of the PP carrier resin on the flame retardancy and water resistance of the intumescent-flame-retarding PP materials was investigated by using the limited oxygen index (LOI), UL94 test, elemental analysis (EA), thermogravimetric analysis (TGA) and water solubility testing, respectively. In addition, the mechanism of the carrier effect was analysed by melt flow index (MFI), scanning electron microscopy (SEM), and TGA. The experimental results show that with increasing content of carrier resin (PP) in the IFR master batch from 0 to 15 wt%, the flame retardancy LOI of the PP/IFR (25 wt% loading) blend increased from 29.5 to 32, and the UL94 level at 1.6 mm thickness was improved from failure to a V-0 rating. In addition, the water resistance of a flame-retarded composite at 25 wt% IFR loading was greatly improved, i.e. after treatment with hot water at 70 °C for 168 h, the reducing rate of element N in the IFR/PP blend decreased from 18.3% with 5 wt% carrier resin to 12.9% with 15 wt% carrier resin, and the LOI reduction rate decreased from 15.3% without any carrier resin to 10.9% with 15 wt% carrier resin, while the flame-retarded PP with an IFR master batch containing 10–15 wt% carrier resin maintained its UL94 V-0 rating at 3.2 mm thickness. The improvement in flame retardancy was attributed to the improved flame-retardant (FR) dispersion due to the carrier resin, while the improved water resistance was explained by the lowered water solubility of the IFR, the improved FR dispersion and the improved compatibility of the FR with the matrix resin due to the carrier resin. Reactive extrusion is a novel way to obtain pelletissed IFRs without powder pollution and their corresponding flame-retarding materials with a number of desired properties. Copyright © 2004 Society of Chemical Industry 相似文献
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将云母、氧化铝、氧化锌制成纳米复合粉体,以聚酯(PET)为载体制成凉感母粒,将凉感母粒与PET切片共混熔纺,开发含有无机纳米粉体的凉感纤维。对凉感母粒的制备、凉爽型聚酯切片的干燥、纺丝、后拉伸工艺进行了讨论。 相似文献
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Sodium fluorohectorite (FH) was dispersed in polystyrene (PS) by direct melt blending with and without a master batch composed of PS and FH and produced by latex compounding. FH was not intercalated by PS when it was prepared by direct melt compounding. In contrast, FH was well dispersed (mostly intercalated) in PS via the PS‐latex‐mediated predispersion of FH following the master‐batch route. The dispersion of FH was studied with transmission and scanning electron microscopy and X‐ray diffraction techniques and discussed. The nanocomposites produced by the master‐batch technique outperformed the directly melt‐compounded microcomposites with respect to stiffness, strength, and ductility according to dynamic mechanical analysis and static tensile tests. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 2007 相似文献
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以三聚氰胺聚磷酸(MPP)/季戊四醇(PT)为复配阻燃剂,氧化锌为催化协效剂,聚乙烯蜡为分散剂,并添加一定量载体树脂,制备了环保膨胀型阻燃聚丙烯(PP)母料,运用氧指数法、UL94垂直燃烧法、热失重分析法和扫描电子显微镜研究了阻燃PP母料的阻燃性能。结果表明:当MPP∶PT=2∶1且MPP与PT占母料总量的72%时,将该类母料添加到PP中制得的复合材料的综合性能最好;阻燃PP母料的最佳载体树脂为PP/PP-g-MAH(1/1),将25%PP/PP-g-MAH基阻燃PP母料添加到PP中,复合材料的阻燃等级可达到UL94V—0级。 相似文献
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竹炭母粒通过干燥、螺杆挤压熔融、注射泵计量进入熔体管道,与聚酯熔体一起进入高效球穴型动态混合搅拌装置,混合均匀后熔体输送至纺丝箱体进行计量纺丝。研究了纺丝工艺条件对竹炭涤纶预取向丝的物理性能的影响,结果表明:竹炭母粒含水率小于0.004%,动态混合器转速35 r/min,纺丝温度283~285℃,环吹风风压28 Pa,环吹风风温20~22℃,无风区高度50 mm,纺丝速度2 560 m/min时,生产稳定,产品物理指标性能较好,满足后道加弹要求。 相似文献