Method for preparing organic small molecule hybrid damping material

Abstract

The invention relates to a method for preparing organic small molecule hybrid damping material. the current methods for preparing organic small molecule hybrid damping material have high production cost, and obtain the damping material with poor damping performance and mechanical properties. The raw material in the invention comprises: inorganic filling material, filling material surface treatment agent, organic small molecule auxiliary agent and polymer with polarity side group. The invention is characterized in comprising the following processes: high speed mixing by mixing machine; low speed mixing by mixing machine; extruding by conical double screws extruder; and forming by clothes hanger type dies with width of 1.2 meters; and quenching by three-rollers calendar. The invention has a low production cost and simple preparation process, and can be used in large-scale high efficient continuous production; and the prepared damping material has high vibration absorption efficiency and excellent mechanical properties.

Description

technical field [0001] The present invention relates to a preparation method of an organic small molecule hybrid damping material, in particular to a preparation method of a high performance organic small molecule hybrid damping material. The present invention mainly prepares a damping material for vibration reduction and noise reduction. The damping material It is mainly used in the noise reduction layer of the front floor of the car and the vibration and noise reduction device of the engine. Background technique [0002] Vibration and noise reduction damping materials in damping materials, as a kind of environmentally friendly products, have a wide range of applications and are widely used in the fields of conveying machinery, industrial machinery, civil machinery, construction civil engineering and precision instruments. The demand for materials is increasing, and the market prospect is very broad. [0003] When preparing the preparation process of organic small molecule...

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Problems solved by technology

[0004] When using conventional production methods to prepare organic small molecule hybrid damping materials, it is difficult to achieve large-scale and efficient continuous production, and the production cost is high, and the fixed investment of equipment is large

At the same time, the damping performance and mechanical properties of the damping material prepared are poor

[0005] There are also some relatively new methods of preparing damping materials at present, such as the Chinese patent whose publication date is July 28, 2004, and whose publication number is CN1515622, which discloses a new type of damping material and its manufacturing method and its use. Styrene butadiene styrene block copolymer is mixed for rubber, and then the refined product is put into a rubber mixer for mixing, and after mixing, mica powder and silica are added for mixing, thereby preparing organic Polymer damping material, the damping material prepared by this patent is an organic polymer damping material with poor performance and small application area

Another example is that the publication date is March 16, 2005, and the Chinese patent publication number CN1594436 discloses a polymer hot-melt damping material and its preparation method. The damping material prepared by this patent is also polymer, Therefore, the performance of the damping material is poor

[0006] Another example is that the publication date is March 20, 2002, and the Chinese patent publication number CN1340562 discloses a production method of an organic mixture-based damping material and a damping modifier for the damping material. This patent discloses an organic Mixture-based damping structural material; the publication date is April 16, 2003, and the Chinese patent publication number CN1412485 discloses a preparation method of a wide temperature and broadband polyacrylate / polysiloxane composite damping rubber. This patent is It involves the preparation method of polyacrylate / polysiloxane composite damping rubber with wide temperature and wide frequency; the publication date is September 1, 2004, and the Chinese patent with publication number CN1524887 discloses a kind of acrylic copolymerized polymer damping material. Synthesis methods, etc., the production costs in these patents are high, and the performance of the prepared damping material is poor, which cannot meet the high performance requirements of the damping material field, such as the application in the noise-absorbing layer of the front floor of the car, engine vibration and noise reduction Device etc.

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