Heat-conducting silicone grease with low oil separation rate and long storage life and preparation method of heat-conducting silicone grease

The invention discloses heat-conducting silicone grease with low oil separation rate and long storage life and a preparation method thereof. The heat-conducting silicone grease with the low oil separation rate and the long storage period is prepared from the following raw materials in parts by weight: 100 parts of dimethyl silicone oil, 800 to 1200 parts of heat-conducting filler, 0.3 to 0.8 part of surface treating agent and 0.1 to 0.2 part of accelerant. The invention further provides a preparation method of the heat-conducting silicone grease, and the heat-conducting silicone grease is low in oil separation rate, long in storage life, low in viscosity and good in insulativity, can enable electronic products to be longer in service life, more stable, more reliable and easy to brush in application, and can also be normally used at positions with dense electrodes. 本发明公开了一种油离率低储存期长的导热硅脂及其制备方法。该油离率低储存期长的导热硅脂的原料组成包括：二甲基硅油100份，导热填料800～1200份，表面处理剂0.3～0.8份，促进剂0.1～0.2份。本发明还提供了上述导热硅脂的制备方法，本发明的导热硅脂的油离率低、储存期长、黏度低、绝缘性良好