Glass bubble,Hollow glass microspheres , Glass sphere beads, Manufacturer & suppliers

In recent years, the demand for sealant in the construction industry has been increasing, with organic silicone sealant being the most widely used and widely used. Organic silicone sealant is mainly made from polysiloxane as the main raw material, and its molecular chain is composed of silica chains. During the vulcanization process, a network of silica chain skeleton structures is formed through cross-linking. The bond energy of Si-0 (444 kJ/mol) is very high, which is not only much higher than the main chain bond energy of other ordinary polymers, but also higher than the UV light energy (399 kJ/mol). Therefore, it has excellent high and low temperature resistance, weather resistance, and UV light aging resistance.
5235 special silicone modified polyester resin is a specially treated silicone modified polyester resin with excellent film-forming properties, high gloss, high temperature resistance, high hardness baking resin, excellent physical compatibility, and excellent storage stability. The hardness reaches 7H after fully curing on the stainless steel plate (Uni-ball)
1) High hardness and good toughness: the surface hardness of stainless steel substrate can reach 7H after curing and film forming (Uni-ball);
2) Good adhesion: can reach level 0 on metal substrates such as stainless steel, and some substrates can reach level 1; 3) High fullness, high gloss, and smoothness;
4) High transparency: The paint film is colorless and transparent, with a transmittance of ≥ 92%; (Various colors can be modulated by oneself)
5) Good heat resistance: Light oil resin can withstand high temperatures of 350 ℃ for a short period of time;
6) Excellent storage stability, capable of grinding various high-temperature resistant color pastes
7) Excellent compatibility with any other silicone polyester resin
8) Can solidify into a film within the temperature range of 180-280 degrees
Resin application range:
1 Individually used in high temperature resistant coatings, such as hair clip coating, Non-stick surface coating, high temperature resistant industrial coating, etc
2. Grind various high-temperature resistant color pastes
3. Mixing with other resins to improve heat resistance and gloss
Alternative to general nano silicone resin
In addition, silicone sealant is also a good adhesive material, with excellent adhesion performance to glass, and is commonly used for sealing and bonding of double-layer insulating glass. Reinforcement fillers account for a relatively high proportion in the formula of silicone sealant, commonly used include Nanomaterial calcium carbonate, fumed silica, carbon ink, etc. When using nanomaterial calcium carbonate as a reinforcing filler, the dosage can reach 60% of the total mass of the system. In addition, some silicone sealants will add incremental fillers to reduce costs, adjust and improve Thixotropy and fluidity. The common incremental filler is heavy calcium carbonate. The common characteristic of the above fillers is their high density, such as Nanomaterial calcium carbonate with a density of 2.7g/cm3, which also leads to a higher density of the final product sealant. Most silicone sealants have a density of about 1.5g/cm3. Hollow glass microspheres, also known as hollow glass microspheres, are a lightweight inorganic powder material developed in recent years.
Hollow glass microspheres are borosilicate glass formed at high temperatures (>1400 ℃) and have stable chemical properties. Hollow glass microspheres are hollow, thin-walled, closed spherical structures with thin gases inside. This special structure gives them the characteristics of low density, low thermal conductivity, and high compressive strength. The true density of hollow glass microspheres is 0.12-0.70g/cm3, and the thermal conductivity is 0.038-0.085 W/(m · K). They can be used as semi reinforcing fillers in silicone sealant, effectively reducing the density and thermal conductivity of the sealant, and also increasing the thermal deformation temperature of the sealant. In addition, hollow glass microspheres generally do not react with substrates or other substances and are suitable for various systems.