Performance and Application of MQ Silicone Resin

MQ silicone resin is a very unique type of polysiloxane. The cheap and easily available water glass is its main raw material. Its wide range of uses makes it a promising new silicone polymer compound. MQ silicone resin is a kind of silicone resin composed of monofunctional Si-O unit (M unit) and four-functional Si-O unit (SIQZ referred to as Q unit), which has a double-layer structure and compact spherical shape. Generally, MQ silicone resin is a powder, which is not easy to disperse when used directly. It has the characteristics of heat resistance, film formation, adhesion, water repellency, aging resistance, and ultraviolet radiation resistance.

Main Technical Indicators

Appearance: colorless transparent liquid or white powder

MQ ratio: 0.5~0.8:1

Solid content (150℃*2H, %): 60%

Scope Of Application

1. Make high-temperature coatings for insulation, bonding and sealing of H-class motors.

2. It can be used to make various waterproof coatings and is an ideal material for making lipsticks in the daily chemical industry.

3. Can be used to make release agents for a variety of materials.

4. As a basic raw material added to the defoaming agent, it can improve the defoaming and foam suppression capabilities.

5. Improve and adjust the peeling force of pressure-sensitive adhesive, used to make pressure-sensitive tapes, etc.

6. Reinforcing filler: can be used for RTV glue, HTV glue, addition liquid silicone rubber products, hot vulcanized silicone rubber compound, and shellless potting of semiconductor components.

Application Prospect

MQ silicone resin has great industrial application value. First of all, it is the only type of organosilicon polymer compound that does not start from expensive raw materials such as organosilicon metal compounds and silicon, but actually starts from water glass for mass production. Meanwhile, practical progress has been made by introducing various organic groups into methyl MQ silicone resins or extending them into silicone resins with MDQ or MTQ structures. For example, epoxy-modified MQ silicone resin can be used as a tackifier and adhesive surface treatment agent for organic resin coatings; chloromethyl-modified MQ silicone resin is sensitive to ultraviolet rays, electron beams and X-rays; highly alkyl-modified MQ silicone resin MQ silicone resin can be used as an additive to organic resins to reduce its internal stress and as an internal mold release agent. In addition, the consumption of silicone resin in the electronic/electrical industry has grown rapidly in recent years, which is also an important driving force for the development of global silicone resin in the future, and the market prospects are very broad.

MQ silicone resin products can be widely used as reinforcement materials for LED patch or LED top film. Of course, this new silicone product has excellent viscosity, so it can also be used as a tackifier to achieve material synthesis and processing, good film-forming properties, excellent flexibility, and anti-aging.

MQ silicone products need to be blended with other chemical ingredients to enhance the properties of certain materials. For example, the LED patches sold on the market use silicone resin products. This product has good film-forming performance, and the liquid substance can quickly form a film after simple processing. In addition, the product also has excellent flexibility and anti-aging properties, so it serves as a protective function as an LED patch. Its flexibility is relatively good, so it will not crack under strong stimulation and pressure from the outside. Likewise, the service life is guaranteed. Excellent weather resistance, can be used normally under high temperature and low temperature.

MQ silicone resin products have excellent weather resistance. Under different climate conditions, the physical properties are still relatively stable and will not melt or decompose. Of course, even if the product is burned at high temperature, it will not undergo chemical deterioration, and even if it is stored at low temperature, it will not affect the performance of elasticity and toughness. Someone once did a simple test and found that the product's physical form is still very stable at an ultra-low temperature of minus 60 degrees, and the chemical molecules are arranged very tightly. Of course, when the product is at a high temperature of 40 degrees, the chemical molecules will not disperse, and the liquid will not melt. From this perspective, it is obvious that this silicone product can be used as an important reinforcing material for the development of tough and elastic products. Of course, these products can still achieve normal performance even when used in relatively harsh environments.

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