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The invention discloses a well body and well lid material for an assembly type electric power working well and a preparation method thereof, the well body and well lid material comprises a sandwich structure, and the upper and lower layers and the middle layer of the sandwich structure are combined by adopting a compression molding process. Furthermore, multiple layers of sandwich structure plates can be combined through a compression molding process to form the multi-layer sandwich structure plate. According to the plate prepared by the method, the respective performance characteristics of the continuous glass fibers and the short glass fibers can be exerted to the greatest extent, and the glass fibers which are arranged in a crossed and laminated manner according to a certain angle (the simplest manner is x-y axial crossing) in the middle layer can enhance the tensile strength and the bending modulus of a sandwich structure; the upper and lower layers of short glass fiber compounded ionic liquid reinforced polypropylene plates can improve the Young modulus and conductivity of the material, and prevent electrostatic accumulation. When the ionic liquid containing double bonds is selected, the ionic liquid is grafted to a polypropylene chain segment in the melt blending process, so that migration loss of the ionic liquid in the use process is prevented.
本发明公开了用于装配式电力工作井的井体、井盖材料及其制备方法，包括三明治结构，三明治结构的上下两层与中间层之间，采用模压成型工艺结合。进一步地，可以将多层三明治结构板材通过模压成型工艺结合，形成多层三明治结构板材。该方法制备的板材，可以最大程度发挥连续玻纤与短玻纤各自性能上的特点，中间层按照一定角度交叉层叠(最简单的是x‑y轴向交叉)排列的玻纤，可以增强三明治结构的拉伸强度，弯曲模量；上下两层短玻纤复配离子液体增强的聚丙烯板材，可以提高材料的杨氏模量，以及导电性能，防止产生静电积累。当选用含有双键的离子液体时，在熔融共混过程中，将离子液体接枝到聚丙烯链段上，防止使用过程中离子液体发生迁移损耗。
The invention discloses a well body and well lid material for an assembly type electric power working well and a preparation method thereof, the well body and well lid material comprises a sandwich structure, and the upper and lower layers and the middle layer of the sandwich structure are combined by adopting a compression molding process. Furthermore, multiple layers of sandwich structure plates can be combined through a compression molding process to form the multi-layer sandwich structure plate. According to the plate prepared by the method, the respective performance characteristics of the continuous glass fibers and the short glass fibers can be exerted to the greatest extent, and the glass fibers which are arranged in a crossed and laminated manner according to a certain angle (the simplest manner is x-y axial crossing) in the middle layer can enhance the tensile strength and the bending modulus of a sandwich structure; the upper and lower layers of short glass fiber compounded ionic liquid reinforced polypropylene plates can improve the Young modulus and conductivity of the material, and prevent electrostatic accumulation. When the ionic liquid containing double bonds is selected, the ionic liquid is grafted to a polypropylene chain segment in the melt blending process, so that migration loss of the ionic liquid in the use process is prevented.
本发明公开了用于装配式电力工作井的井体、井盖材料及其制备方法，包括三明治结构，三明治结构的上下两层与中间层之间，采用模压成型工艺结合。进一步地，可以将多层三明治结构板材通过模压成型工艺结合，形成多层三明治结构板材。该方法制备的板材，可以最大程度发挥连续玻纤与短玻纤各自性能上的特点，中间层按照一定角度交叉层叠(最简单的是x‑y轴向交叉)排列的玻纤，可以增强三明治结构的拉伸强度，弯曲模量；上下两层短玻纤复配离子液体增强的聚丙烯板材，可以提高材料的杨氏模量，以及导电性能，防止产生静电积累。当选用含有双键的离子液体时，在熔融共混过程中，将离子液体接枝到聚丙烯链段上，防止使用过程中离子液体发生迁移损耗。
Well body and well lid material for assembly type electric power working well and preparation method of well body and well lid material
用于装配式电力工作井的井体、井盖材料及其制备方法
WANG LEI (author)
2023-04-04
Patent
Electronic Resource
Chinese
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| European Patent Office | 2023