Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a permanent magnetic ferrite, and relates to the field of ferrites, and the permanent magnetic ferrite is prepared from the following components by weight: 68-80 parts of powdery ferrite; 12 to 18 parts of attapulgite; 1-2 parts of a silane coupling agent; 6-8 parts of a plasticizer; 10 to 15 parts of a binder; 5-8 parts of a dispersant; and 35-45 parts of a solvent. The preparation method comprises the following steps: adding a silane coupling agent into water, adding attapulgite, heating to 50 DEG C, adding powdery ferrite, heating to 80 DEG C, mixing for 10-20 minutes, filtering and drying to obtain a powdery mixture; adding the powdery mixture, a plasticizer, a binder and a dispersant into a solvent, and carrying out ball milling for 5-8 hours to obtain slurry; and carrying out casting to prepare a sheet shape, and carrying out sintering molding to obtain the permanent magnetic ferrite. The magnetic conductivity of the permanent magnetic ferrite prepared according to the formula and the preparation method disclosed by the invention is greatly improved, and the crack resistance and the bending strength are also greatly improved.
本申请公开了一种永磁铁氧体，涉及铁氧体领域，永磁铁氧体由以下按重量份数计的组分制备得到：粉状铁氧体68～80份；凹凸棒土12～18份；硅烷偶联剂1～2份；增塑剂6～8份；粘结剂10～15份；分散剂5～8份；溶剂35～45份。将硅烷偶联剂加至水中，加凹凸棒土升温至50℃，加粉状铁氧体升温至80℃，混合时间为10～20min，过滤并烘干得到粉末状混合物；将粉末状混合物、增塑剂、粘结剂以及分散剂加入至溶剂中，球磨5～8h，得到浆料；通过流延制成片状，烧结成型，得到永磁铁氧体。按照本申请配方及制备方法制备得到的永磁铁氧体的磁导率有较大幅度的提高，并且在裂纹抗力以及抗弯曲强度上同样有较大幅度的提升。
The invention discloses a permanent magnetic ferrite, and relates to the field of ferrites, and the permanent magnetic ferrite is prepared from the following components by weight: 68-80 parts of powdery ferrite; 12 to 18 parts of attapulgite; 1-2 parts of a silane coupling agent; 6-8 parts of a plasticizer; 10 to 15 parts of a binder; 5-8 parts of a dispersant; and 35-45 parts of a solvent. The preparation method comprises the following steps: adding a silane coupling agent into water, adding attapulgite, heating to 50 DEG C, adding powdery ferrite, heating to 80 DEG C, mixing for 10-20 minutes, filtering and drying to obtain a powdery mixture; adding the powdery mixture, a plasticizer, a binder and a dispersant into a solvent, and carrying out ball milling for 5-8 hours to obtain slurry; and carrying out casting to prepare a sheet shape, and carrying out sintering molding to obtain the permanent magnetic ferrite. The magnetic conductivity of the permanent magnetic ferrite prepared according to the formula and the preparation method disclosed by the invention is greatly improved, and the crack resistance and the bending strength are also greatly improved.
本申请公开了一种永磁铁氧体，涉及铁氧体领域，永磁铁氧体由以下按重量份数计的组分制备得到：粉状铁氧体68～80份；凹凸棒土12～18份；硅烷偶联剂1～2份；增塑剂6～8份；粘结剂10～15份；分散剂5～8份；溶剂35～45份。将硅烷偶联剂加至水中，加凹凸棒土升温至50℃，加粉状铁氧体升温至80℃，混合时间为10～20min，过滤并烘干得到粉末状混合物；将粉末状混合物、增塑剂、粘结剂以及分散剂加入至溶剂中，球磨5～8h，得到浆料；通过流延制成片状，烧结成型，得到永磁铁氧体。按照本申请配方及制备方法制备得到的永磁铁氧体的磁导率有较大幅度的提高，并且在裂纹抗力以及抗弯曲强度上同样有较大幅度的提升。
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