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本文叙述了阴极电泳涂装的成膜机理,研究并确定了利用阴极电泳清漆作为防护装饰的彩色涂装工艺.讨论了影响电泳漆膜的质量因素,测定了漆膜的性能,提供了防护装饰性涂层的新途径. 相似文献
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重点介绍了汽车车身电泳漆膜在梯度膜厚下的性能,采用SEM、X射线转靶衍射仪、NSS等研究手段分析了板材在相同前处理方式下磷化膜的结构形貌,以及梯度电泳漆膜的耐中性盐雾性能特征,为分析电泳漆膜厚度对涂装耐腐蚀性能的影响提供了参考,也可作为车身电泳漆膜厚度的设计依据。 相似文献
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介绍了阴极电泳涂料基料树脂的制备方法,并将两种改性树脂以不同的比例共混,制备了稳定的阴极电泳复合乳液;通过测定混合树脂及复合电泳漆膜的凝胶含量,确定了复合乳液的最佳配方,电泳涂装漆膜具有较好的综合性能. 相似文献
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紫外光固化阴极电泳涂料用丙烯酸树脂的合成及应用 总被引:7,自引:0,他引:7
以甲基丙烯酸二甲胺乙酯(DMAEMA)、甲基丙烯酸羟乙酯(HEMA)、丙烯酸异辛酯(EHA)、甲基丙烯酸甲酯(MMA)和苯乙烯(St)为共聚单体制备了阳离子型丙烯酸树脂,再利用含异氰酸根的不饱和单体对其进行接枝改性得到光敏树脂,合成了紫外光(UV)固化阴极电泳涂料.红外光谱表征证明得到了目标产物.考察了电泳工艺对漆膜厚度、闪蒸条件对漆膜性能以及光固化条件对双键转化率的影响,获得了最佳电泳工艺为、闪蒸工艺和固化条件,分别为:电泳电压80 V,电泳时间90 s;闪蒸温度80 ℃,闪蒸时间5min;引发剂用量3%(质量分数),固化时间70 s,此条件下固化所得漆膜平整、光亮,性能优异. 相似文献
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环氧树脂阴极电泳涂料的研究 总被引:1,自引:0,他引:1
阴极电泳涂料作为一种环保型的水性涂料,具有广阔的应用前景.在此采用半封闭的甲苯二异氰酸酯作为固化剂制得了环氧树脂阴极电泳涂料.探讨了合成树脂的反应条件,并对所得阴极电泳涂料的性能进行了测试.结果表明,在适宜的电泳工艺参数下,可以得到外观光滑平整,综合性能优良的漆膜. 相似文献
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用溶胶—凝胶法制备掺杂酞菁蓝的玻璃表面装饰膜 总被引:1,自引:0,他引:1
采用溶胶-凝胶法,以正硅酸乙酯,异丙醇,水为原料制备了掺杂有机颜料酞菁蓝的玻璃表面装饰膜,利用随圆偏振光测厚仪,分光光度计,色度计测量了装饰膜的性质,研究了装饰膜的耐紫外线照射的稳定性,耐酸性和耐碱性,结果表明此装饰膜是稳定的。 相似文献
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家装用易打磨单组分水性木器底漆的研制 总被引:1,自引:1,他引:0
介绍了选择合适的水性乳液,采用混拼的成膜助剂,加入硬脂酸锌制得水性木器底漆。产品成本低、涂刷性能好、易打磨、成膜效果优良,适合普通家庭装修用。 相似文献
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塑料产品表面装饰新工艺--模内复膜 总被引:1,自引:0,他引:1
简要介绍了模内复膜工艺的分类、工艺特性对比、各类模内复膜工艺的工艺过程.同时讨论了模内复膜产品设计原则以及装饰膜的预成型工艺及其公差经验值. 相似文献
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A hybrid film of graphene decorated with poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) nanoparticles is fabricated by a simple non-solvent induced precipitation method. The structure of the graphene film and graphene/MEH-PPV hybrid film are investigated by scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. The large specific surface area of graphene sheets makes it an ideal support for depositing MEH-PPV nanoparticles as well as preventing aggregation of the nanoparticles. The graphene/MEH-PPV hybrid film is superhydrophobic, which is attributed to the increase in surface roughness as a result of random decoration of MEH-PPV nanoparticles on the graphene sheets. The MEH-PPV nanoparticles endow the graphene hybrid film with strong photoluminescence. The hybrid film also shows excellent conductivity and high thermal stability. The graphene/MEH-PPV hybrid film thus prepared may find potential applications in various devices where integrated properties of superhydrophobicity, conductivity and luminescence are required. 相似文献
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介绍了丙烯腈丁二烯苯乙烯共聚物(ABS)电子音响外壳产品模内装饰聚对苯二甲酸乙二醇酯(PET)薄膜的注塑模具设计过程,设计了倒装模具结构,实现了薄膜输送的自动化;采用潜伏顶针进胶系统,防止了冲墨、气纹等缺陷;设计了内外环气路用于吸气,实现了薄膜的良好定位。 相似文献
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In-mold decoration is an integrated process for plastic processes, such as printing, hot pressing, and injection molding. The process has simpler steps, the production time is shorter, products are more durable, and manufacturing costs are less than traditional methods. In-mold decoration is affected by shape, mold design and the parameters for forming, and cracking, wrinkling or stress concentration can occur. A large curvature can produce cracks and wrinkles. This study designs a series of experimental methods for film forming, hot press forming, and injection molding. The effects of various features on the quality of the hot press forming and injection molding processes are determined. A three-dimensional film forming process uses pressure thermoforming technology to form either without pretensioning, with pretensioning, and with local heating. The local heating method gives the best results. For injection molding processes, the mold temperature, the melt temperature, the injection speed, and the holding pressure are the parameters. The injection molding process is optimized using the Taguchi method, and the factor with the highest contribution is determined to be the holding pressure. The conductive line of the finished in-mold decoration product can be formed smoothly by hot pressing using local heating, and the measured resistors are almost the same after each process. 相似文献
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以聚丙烯(PP)为薄膜材料,对鼠标外壳进行模外装饰(Out side Mold Decoration,OMD)贴膜,采用有限元方法对该成型过程进行模拟仿真,获得了薄膜厚度的分布及其在X、Y方向变形分布,分析了影响薄膜成型的工艺参数,以成型后薄膜厚度平均值的标准偏差及其在X、Y方向变形量的标准偏差同时最小为目标,采用试验设计(DOE)中的正交数组法对其各项工艺参数进行优化分析,得到了最优的工艺参数,达到了薄膜厚度分布更均匀和其变形精度更高的目的。 相似文献