Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spray granulation method and preparation method of microwave medium powder
The invention belongs to the technical field of microwave dielectric materials, particularly relates to a spray granulation method of microwave dielectric powder, and further discloses a preparation method of the microwave dielectric material. According to the spray granulation method of the microwave dielectric material powder, spray granulation treatment is carried out by adopting the mixed gluesolution of the PEG glue, the PVA glue and the polyacrylic acid glue in a proper proportion, and the plasticity of a green body can be effectively improved, the pressing pressure of the green body isreduced and the cracking of the green body is eliminated by utilizing the PEG glue; polyacrylic acid and PVA are matched for use; the viscosity of the slurry can be effectively improved under the condition of high solid content, the strength of the green body is improved, the problem of mold sticking caused by PEG during subsequent dry pressing molding can be effectively solved, the problems of high pressing pressure, easiness in cracking and the like of various microwave dielectric materials during dry pressing molding of porous parts and special-shaped parts can be effectively solved, and the molding performance of spray granulation powder is improved.
本发明属于微波介质材料技术领域，具体涉及一种微波介质粉体的喷雾造粒方法，并进一步公开一种微波介质材料的制备方法。本发明所述微波介质材料粉体的喷雾造粒方法，通过采用以适当配比的PEG胶、PVA胶和聚丙烯酸胶的混合胶液进行喷雾造粒处理，利用PEG胶可有效提高坯体塑性、降低坯体压制压力、消除坯体开裂；利用聚丙烯酸与PVA匹配使用，可在高固含量的情况下有效改善浆料粘度，提高坯体强度，并可有效改善PEG引起的后续干压成型时带来的粘模问题，可有效解决多种微波介质材料在干压成型多孔件、异形件带来的压制压力高、易开裂等问题，提高了喷雾造粒粉体的成型性能。
Spray granulation method and preparation method of microwave medium powder
The invention belongs to the technical field of microwave dielectric materials, particularly relates to a spray granulation method of microwave dielectric powder, and further discloses a preparation method of the microwave dielectric material. According to the spray granulation method of the microwave dielectric material powder, spray granulation treatment is carried out by adopting the mixed gluesolution of the PEG glue, the PVA glue and the polyacrylic acid glue in a proper proportion, and the plasticity of a green body can be effectively improved, the pressing pressure of the green body isreduced and the cracking of the green body is eliminated by utilizing the PEG glue; polyacrylic acid and PVA are matched for use; the viscosity of the slurry can be effectively improved under the condition of high solid content, the strength of the green body is improved, the problem of mold sticking caused by PEG during subsequent dry pressing molding can be effectively solved, the problems of high pressing pressure, easiness in cracking and the like of various microwave dielectric materials during dry pressing molding of porous parts and special-shaped parts can be effectively solved, and the molding performance of spray granulation powder is improved.
本发明属于微波介质材料技术领域，具体涉及一种微波介质粉体的喷雾造粒方法，并进一步公开一种微波介质材料的制备方法。本发明所述微波介质材料粉体的喷雾造粒方法，通过采用以适当配比的PEG胶、PVA胶和聚丙烯酸胶的混合胶液进行喷雾造粒处理，利用PEG胶可有效提高坯体塑性、降低坯体压制压力、消除坯体开裂；利用聚丙烯酸与PVA匹配使用，可在高固含量的情况下有效改善浆料粘度，提高坯体强度，并可有效改善PEG引起的后续干压成型时带来的粘模问题，可有效解决多种微波介质材料在干压成型多孔件、异形件带来的压制压力高、易开裂等问题，提高了喷雾造粒粉体的成型性能。
Spray granulation method and preparation method of microwave medium powder
一种微波介质粉体的喷雾造粒方法及制备方法
FU QINGBO (Autor:in) / LIU GUANGMING (Autor:in) / YANG BIN (Autor:in) / YANG YUEXIA (Autor:in)
29.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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