张峻岭.二氧化钛对PP/SPTW复合材料性能的影响[J].包装工程,2016,37(19):59-63.
ZHANG Jun-ling.Effect of TiO2 on PP/SPTW Composite Properties[J].Packaging Engineering,2016,37(19):59-63. |
| 二氧化钛对PP/SPTW复合材料性能的影响 |
| Effect of TiO2 on PP/SPTW Composite Properties |
| 投稿时间：2016-04-05 修订日期：2016-10-10 |
| DOI： |
| 中文关键词: 聚丙烯 二氧化钛 六钛酸钾晶须 包装容器 |
| 英文关键词: polypropylene titanium dioxide six potassium titanate whisker packaging containers |
| 基金项目:东莞市社会发展计划（2014106101036） |
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| 中文摘要: |
| 目的 研究不同质量分数的二氧化钛(TiO2)对聚丙烯/六钛酸钾晶须复合材料力学性能的影响，并找出TiO2的最佳质量分数。方法 首先采用硅烷偶联剂KH550改性二氧化钛和六钛酸钾晶须(SPTW)，然后将改性过的二氧化钛与改性过的六钛酸钾晶须、马来酸酐接枝聚丙烯(PP-g-MAH)、聚丙烯(PP)通过熔融共混法制得PP/PP-g-MAH/SPTW/TiO2复合材料。结果 比较了不同含量二氧化钛对聚丙烯/钛酸钾晶须复合材料性能的影响。研究表明，二氧化钛能够明显改善复合材料的力学性能，随着二氧化钛含量的递增，复合材料的力学性能总体呈先增加后降低的趋势。当二氧化钛质量分数为1%时，复合材料的弯曲强度、拉伸强度和冲击强度分别增大了35.2%，41.2%和33.7%。随着TiO2质量分数的继续增加，复合材料的弯曲强度逐渐开始下降，拉伸强度和冲击强度在其质量分数超过2%时逐渐开始减小。结论 当TiO2质量分数约为2%时，复合材料的综合力学性能最佳。 |
| 英文摘要: |
| The work aims to study the effect of titanium dioxide on the mechanical properties of polypropylene/six potassium titanate whisker composite, and work out the optimal mass fraction of TiO2. Firstly, titanium dioxide (TiO2) and potassium hexatitanate whisker (SPTW) were modified by silane coupling agent KH550. Then, PP/PP-g-MAH/ SPTW/TiO2 composite was prepared by melt blending of modified TiO2, potassium hexatitanate whisker, maleic anhydride grafted polypropylene (PP-g-MAH) and polypropylene (PP). Finally, the influences of different content of titanium dioxide on properties of polypropylene/potassium titanate whisker composite were compared. The research showed that titanium dioxide could significantly improve the mechanical properties of the composite. With the increase of the content of titanium dioxide, the mechanical properties of the composite increased at first and then decreased. The bending strength, tensile strength and impact strength of the composite increased by 35.2%, 41.2% and 33.7% respectively when the amount of titanium dioxide was 1%. Subsequently with the increase of TiO2 content, the flexural strength of the composite gradually began to decline, and the tensile strength and impact strength gradually began to decrease when the amount of the composite was added for more than 2%. In conclusion, when the TiO2 mass fraction is about 2%, the composite has the best mechanical properties. |
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