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The investigation of the injection mechanism into the plastic substrate by applying thermal spray technique and it's compound surface treatment

热喷涂塑料基体注射机理及其复合表面处理研究

基本信息

批准号：
11309008
负责人：
OHMORI Akira
金额：
$ 23.97万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11309008/
关键词：
Plastic PET Binolle Recycle Thermal spray Particle Plating 粒子注入再生PET アナターゼ型二酸化チタン

项目摘要

Plating on PET was done for the purpose of recycling of plastic by using thermal spray technique. PET substrate was not melted in heat input due to only plasma, while PET substrate was melted in case plasma spraying with Cu was used. It was observed that Cu particle was injected into the melted zone.In case of low heat input from Cu particle, thermal spray film was formed on the PET substrate. Travers speed of gun was changed in order to get knowledge associating with spraying parameter, consequently, it was found that circle particle was injected into the PET substrate in lowest speed (67mm/s) and Cu particle was piled up on PET substrate in case of non-injected into substrate.TiO2 particle was also (thermal) sprayed into the PET and bionolle substrate in order to add photo -catalytic activity on bionole. The particle having 20μm-30μm diameter was not melted, while particle having less than 10 μm was melted perfectly. It was recognized thermal sprayed film was formed on the injected zone when pass count was increased at 500A. Perfect film was not formed because the peak due to PET substrat e was observed by using XRD pattern in case arc current was 350A, 400A and He gas pressure was OMPa. The anatase ratio was higher because relatively bigger non-melted anatase TiO_2 particle injected into PET substrate in 1 pass at 500A. The rutile ratio was increased with increasing of pass count in all condition and the 100% anatase TiO_2 film has been made on bionolle by using HVOF spray.

采用热喷涂技术在PET上进行电镀，以达到塑料回收的目的。由于仅等离子体，PET基材在热输入中不熔化，而在使用Cu的等离子体喷涂的情况下，PET基材熔化。结果表明，Cu粒子被喷入熔融区，在较低的热输入下，在PET基体上形成了热喷涂膜。通过改变喷枪的横移速度，获得与喷涂参数相关的知识，发现圆形粒子以最低速度（67 mm/s）喷入PET基体，未喷入基体的Cu粒子堆积在PET基体上; TiO 2粒子也以热喷涂方式喷入PET和生物分子基体中，以增加生物分子的光催化活性。粒径为20μm ~ 30μm的颗粒不熔化，粒径小于10 μm的颗粒完全熔化。在500 A下增加道次数时，在注射区形成了热喷涂膜。当电弧电流为350 A、400 A、He气压为0 MPa时，由于PET基体的衍射峰，不能形成理想的薄膜。在500 A下，一次注入PET基体的未熔融TiO_2颗粒较大，导致了较高的包覆率。在所有条件下，金红石比例都随着喷涂道次的增加而增加，并利用HVOF喷涂技术在生物陶瓷表面制备了100%金红石型TiO_2薄膜。