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CN101348601B 塑钢打包带用纳米SiO2增强增韧PET复合材料的制备方法 失效 - 权利终止

塑钢打包带用纳米SiO2增强增韧PET复合材料的制备方法
摘要：
本发明公开了一种塑钢打包带用纳米SiO2增强增韧的PET复合材料，采用熔融共混法制备纳米SiO2增强PET复合材料母料，气相SiO2的质量百分含量为25-40％。熔融体系始终保持高速剪切分散，并在20KHz的超声环境中进行混合。熔融体系中还加入了偶联剂KH550或A1120，其用量为SiO2用量的2.5-4％。将母料按一定比例与PET共混投料，得到纳米SiO2增强增韧的PET复合材料，其纳米SiO2的含量为1-3.5％。利用本发明，纳米SiO2粒子在PET中分散均匀、结晶性能好、增强效果明显，与PET相容性好，同时又操作简单、成本较低。本发明PET母料与PET共混生产塑钢打包带，能较好地提高PET的强度、韧性等。
摘要（英）：

The invention discloses a nanometer SiO2 strengthening-toughening PET compound material for plastic-steel packing straps. A melt-blending method is adopted to prepare a master batch of the nanometer SiO2 strengthening PET compound material; the weight percentage content of gas-phase SiO2 is between 25 and 40 percent; a melting system always maintains high-speed shearing dispersion and carries outmixing in a 20KHz ultrasonic environment; a coupling agent KH550 or A1120 is added to the melting system, and the dosage of the coupling agent is 2.5-4 percent of that of the SiO2; the master batch is blended with PET and fed in certain proportion, and then the nanometer SiO2 strengthening-toughening PET compound material can be obtained, wherein the content of nanometer SiO2 is between 1 to 3.5 percent. Due to the adoption of the compound material, nanometer SiO2 particles in PET are uniform in dispersion, good in crystallization property, obvious in strengthening effect, good in the compatibility with the PET, simple to operate and low in cost. The PET master batch is blended with the PET for producing the plastic-steel packing straps, which can raise the strength, toughness, etc. of the PET.

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