エス・ピー・ジーテクノ List of Products and Services

In 1981, the Miyazaki Prefectural Industrial Technology Center developed a porous glass called SPG (Shirasu Porous Glass) that utilizes the micro-phase separation of glass made from shirasu (volcanic ash), which is abundantly deposited in southern Kyushu. This glass can be freely designed with uniform continuous pores on the micron order. - It contains countless precisely controlled continuous pores (monolithic structure). - The size of the pores can be designed arbitrarily within a wide range from 0.1 μm to relatively macro-sized pores of 50 μm. - It has a narrow pore distribution. - There is no deformation of the pores under pressure. - It has excellent heat resistance (max 500°C). - Surface chemical modification allows for hydrophilization or hydrophobization of the surface, as well as the introduction of various organic functional groups. - Despite being porous, it has very high mechanical strength and excellent heat resistance and thermal insulation. - It is resistant to most reagents except for strong alkalis and hydrofluoric acid.

• Glass

This is a disposable type SPG device that allows for monodisperse and adjustable particle size emulsions with just a few milliliters and a small amount of sample. SPG emulsification is characterized by its ability to adjust the particle size of monodisperse emulsions, and it is also very static compared to other high-speed stirring or high-pressure emulsifications, making it suitable for emulsifying sensitive polymer materials and pharmaceuticals. Additionally, it can emulsify with a very small amount, so it is ideal for emulsifying expensive drugs or reagents. The "pumping connector" allows for manual emulsification in a short time using the SPG permeation emulsification method. We also offer a lineup of "direct connectors" and "filter kits" that utilize the SPG direct emulsification method to prepare highly precise monodisperse emulsions.

• Other laboratory equipment and containers

- Monodisperse emulsions can be easily adjusted for particle size. - Both "direct emulsification" and "transmembrane emulsification" can be performed with a single unit. - Since only the SPG membrane can be replaced, various sizes of emulsions can be prepared with one device. - Emulsions can be prepared in sizes ranging from submicron to over 100 μm. - It is suitable for preparing emulsions in the range of several dozen ml to about 2 liters. - The wetted parts are made of stainless steel and fluororubber, allowing emulsification of corrosive liquids such as organic solvents. - Specifications can be modified to meet customer needs.

• Other laboratory equipment and containers