Whether sandy pillows are harmful to the human body

Polystyrene (PS) is a colorless and transparent thermoplastic. It has a glass transition temperature of more than 100 degrees Celsius, so it is often used to make various disposable containers that need to withstand the temperature of boiling water, as well as disposable foam lunch boxes.

Chemical properties. Polystyrene has poor chemical stability, can be dissolved by a variety of organic solvents, will be corroded by strong acids and alkalis, is not resistant to grease, and is easy to change color after being exposed to ultraviolet light.

Physical. Polystyrene is hard and brittle, colorless and transparent, and can be mixed with a variety of dyes to produce different colors.

Ordinary polystyrene (GPPS).

Ordinary polystyrene resin is non-toxic. Odorless. Colorless transparent particles, like glassy brittle materials.

Its products have extremely high transparency, light transmittance can reach more than 90, good electrical insulation performance, and easy coloring. Good processing fluidity, good rigidity and good chemical corrosion resistance. The disadvantages of ordinary polystyrene are brittleness, low impact strength, easy stress cracking, poor heat resistance and not resistant to boiling water.

Structure and properties of polystyrene plastics.

Structure. The arrangement of phenyl groups on the molecular chain is disordered, resulting in polystyrene being an amorphous polymer with high transparency. The side group of polystyrene is a large benzene ring, the molecular structure is asymmetrical, and the movement of the macromolecular chain is difficult, so the ethylene is rigid and brittle, and the product is prone to internal stress.

Due to the high transparency, the internal stress of the product can be checked by polarized light.

The macromolecular backbone of polystyrene is a saturated hydrocarbon polymer, which has good electrical insulation, and can be used in humid environments because of its low moisture absorption. Due to the presence of phenyl group, the A hydrogen atom on the main chain is activated, which is easily oxidized by the oxygen in the air, and the product becomes yellow and brittle after long-term outdoor use. However, at the same time, the presence of phenyl group gives it high radiation resistance, and the performance changes very little at the radiation dose of 10 to the 6th power.

Performance. Ordinary polystyrene resin particles are colorless and transparent, smoke and turpentine smell when burning, blowing out can pull out the filament, the quality is hard like glass, and there will be a metal-like sound when landing or knocking: it can be broken but not bent, and the fracture is a clamshell-colored silver light.

The water absorption rate of polystyrene is slightly greater than that of polyethylene, which has little effect on the strength and dimensional stability of the product.

So there is no poison.

The harm is not very great. Strictly speaking, there is a shout.

The glow-in-the-dark pillow is a new addition to the pillow. The luminous pillow follows the concept of humanized and environmentally friendly product design and production. The light source uses our common light-emitting diodes, which have no radiation effect on the human body.

The control module of the luminous pillow adopts microelectronic control technology, which is not only radiation-free but also energy-saving. The fabric of the luminous pillow is made of high-grade fabric, which is soft and comfortable. Luminous pillow can also be ****, in leisure and entertainment can get more relaxation and happiness, the general material of filial piety calendar ** between 50 60, high-quality luminous pillow ** in 100 yuan or more, fully functional generally around 158, the use of super soft peacock down fabric, filled with high transparent polypropylene cotton, comfortable and soft feel smooth, peacock down material, delicate, soft, hug more warm, wet hair calendar or towel drying, natural drying and finishing;

The benefits of bamboo charcoal to the human body are:

Bamboo charcoal has a strong adsorption capacity, which can purify the air and reduce the harm of methanol to the human body.

Bamboo charcoal can eliminate odor, absorb moisture and prevent mildew, and can remove moisture and sweat in contact with the human body.

Bamboo charcoal can relieve human fatigue and promote the function of blood circulation and metabolism of the human body.