陶瓷分散劑KR-908主要成分為陰離子型聚合物的鹽,本品能夠吸附在各種微小顆粒表面并產(chǎn) 生靜電斥力使之分散,避免沉降、返粗。KR-908主要用于磁性材料、電子陶瓷、造紙工業(yè)、氧化鋁陶瓷、日用陶瓷等行業(yè)的添加劑,在漿料的研磨加工過程中加入陶瓷分散劑KR-908能極大地降低被加工 物料的粘度,便于物料的加工,且分散后漿料粘度穩(wěn)定。在產(chǎn)品焙燒過程中全部揮發(fā),對產(chǎn)品的物化性能毫無影響。本品泡沫少、無毒、無腐蝕,屬非危險品。
在研磨機或攪拌池(桶)內(nèi)先放置含有一定水分的原料,加入定量的陶瓷分散劑KR-908,研磨加工后可獲得穩(wěn)定性、流動性良好的高固體含量的漿料,減少其用水量,利于研磨和縮短干燥工序的用期。在干壓法或半干壓法生產(chǎn)粉料中,噴霧造粒所得的干粉在壓制過程中,具有很好的強度,大大增強半成品的耐磨損性,減少燒成時收縮不均、開裂等缺陷。
陶瓷分散劑KR-908一般添加量為物料的0.2-2%左右(固體/固體);最佳用量可根據(jù)實驗而定。也可與無機磷酸鹽分散劑混合使用。
The main component of ceramic dispersant KR-908 is the salt of anionic polymer. This product can adsorb on the surface of various small particles and generate electrostatic repulsion to disperse them, avoiding sedimentation and coarsening. KR-908 is mainly used as an additive in industries such as magnetic materials, electronic ceramics, papermaking, alumina ceramics, and daily ceramics. Adding ceramic dispersant KR-908 during the grinding process of the slurry can greatly reduce the viscosity of the processed material, facilitate material processing, and stabilize the viscosity of the slurry after dispersion. All volatilization during the product roasting process has no impact on the physical and chemical properties of the product. This product is a non dangerous product with less foam, no toxicity and no corrosion. Place raw materials containing a certain amount of moisture in the grinder or mixing tank (barrel), add a quantitative amount of ceramic dispersant KR-908, and after grinding, obtain a stable and flowable high solid content slurry, reducing its water consumption, which is beneficial for grinding and shortening the drying process. In the production of powder by dry pressing or semi dry pressing, the dry powder obtained by spray granulation has good strength during the pressing process, greatly enhances the abrasion resistance of semi-finished products, and reduces defects such as uneven shrinkage and cracking during firing. The general addition amount of ceramic dispersant KR-908 is about 0.2-2% of the material (solid/solid); The optimal dosage can be determined based on experiments. It can also be mixed with inorganic phosphate dispersants.
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