cell phone jammer can stop the mobile communication in the specific range

Forming the workpiece in the absorption of water will lead to size changes, so the water can also be seen as a plasticizer or toughening agent. The absorption of water may be evaporated in the injection molding process, resulting in waterlines and bubbles. Some resin may be in the melting temperature and water react. This reaction is called hydrolysis, which is a form of degradation. It makes the molecular weight decrease, leading to the melt viscosity decreases, the loss of impact strength. The sensitivity of the hydrolysis does not depend on how much of the water absorption of the plastic resin. In fact, when the nylon resin to achieve a relative humidity of 100% saturation, they can absorb up to 8% or more moisture. Nylon slow hydrolysis in the melting temperature than polyester or polycarbonate, polyester or polycarbonate water absorption is much less than it. How to determine the installation place of cell phone jammer ?
Common plastic resin according to their sensitivity to moisture and the need for drying shown in Table 3. These polymer structure, crystallinity and water absorption of background information will help us to understand why the engineering plastic injection molding operation is different from other plastic, and different types of engineering plastics in some sense is also different from each other. Acrylic (acrylic) is PMMMA (polymethy-methacrylaye) Plexiglas, is an amorphous thermoplastic material, good optical properties (can be as transparent as glass, transparency can be achieved by 92%) of PMMA hardness moderate-intensity, it is easy to scratch, obvious scratches. The area of meeting room with  cell phone jammer  used is smaller than 300 square meters.
However, it is easy to polish, optical and mechanical degeneration in the outdoors, elegance and sun exposure does not occur. Process on the production of plastic mold - plastic injection - out of - vacuum forming, however whkone of PMMA you can be more than an M As a side note, of PMMA is actually resistance to outdoor exposure performance than PC, but the main drawback is that the temperature low smaller, you can use upper and lower temperature, transparency up to 92% of the theoretical conditions, the actual situation will be affected by the limitations of the manufacturing process. In fact, we all missing the plastic can be modified for applications to be adjusted The advantage of the favorable side of the basic performance of various additives to improve the dark side. GE and BAYER a PC resistant to 230 degrees or more, and DuPont nylon resistant to 250 degrees, durable and stronger than of PBT.  cell phone jammer  can shield the whole meeting room.
Early cell phone case with metal frame, such as Ericsson, the early products of 388, not only shatterproof, shock resistance also increased significantly, but also enables users so far miss the feeling of that heavy heavy. With the development of cell phones, light and love of people, but the metal frame of the "quality" has restricted the development of cell phones, so a new shell material emerged, ABS composite plastic for its good toughness (shock resistance), sealed high mechanical strength, resistance to chemical corrosion, get in the hands of the very texture of the characteristics of people of all ages.  mobile phone jammer  can also be mounted in a certain corner or a wall.
ABS plastic shell cell phone can be swept one o'clock, when young people decorate cell phone to show off the personality to become the first choice for their love of the plastic shell of the sense of perspective, favorite plastic unlimited color changes, because it represents their colorful and unfettered life they can become an important symbol of the city flow flashing bright spot. Then, Nokia metallic paint on in 8810, silver chrome-plated shell, set off the metal color in the boom in the market, then the application of new material seems to pause for some time. However, with the SONY UV coating paint used in the shell of the cell phone, allowing users to feel in the cell phone without leaving fingerprints, bright as new, a better feeling. Reducing interference with outside environment caused by  cell phone jammer  is needed.