What Is The Material Of Silicone

Literally speaking, silica gel is a porous solid silica material with a large specific area. Silica gel is an amorphous substance and is a highly active adsorption material. Compared with other similar materials, silica gel has many advantages, such as high adsorption performance, stable chemical properties (does not react with any substances except strong alkalis and strong acids), good thermal stability, and higher mechanical strength.

According to the size of its pore size, silica gel can be divided into: macroporous silica gel, type B silica gel, coarse pore silica gel, and fine pore silica gel; according to its composition and shape, it can be divided into extruded silica gel and molded silica gel; according to its nature and composition, it can be divided into organic silica gel and There are two major categories of inorganic silica gel.

The pc cup can't put hot water below 80 degrees, but can't let the water go. The plastic cup with the number 7 seen at the bottom of the cup. PC plastic materials are widely used in daily necessities such as water bottles, plastic cups, and baby bottles.

PC7 can withstand a high temperature of up to 80 degrees, which means that even 100 degrees Celsius boiling water can not be filled, because the PC is easy to release the toxic substance bisphenol A under high temperature conditions, which is harmful to the human body. Do not heat it when using it and do not expose it to direct sunlight.

Under high heat and high temperature conditions, the pc material will undergo a chemical reaction and produce toxic and harmful substances. Long-term accidental ingestion will cause great damage to the human body. Therefore, when using pc material plastic cups, please avoid high temperature and heat as much as possible. Fill the plastic cup made of pc with boiling water, and don't put it directly into the microwave or oven.

The pp plastic water cup is made of polypropylene, which has good heat resistance. The product can be sterilized at a temperature above 100°C, and will not deform at 150°C without external force. The embrittlement temperature is -35℃, and embrittlement will occur below -35℃, and the cold resistance is not as good as polyethylene. The reported value of the glass transition temperature of polypropylene is 18qC, OqC, 5℃, etc. This is also due to the use of different samples. To.

The melting temperature of polypropylene is about 40-50% higher than that of polyethylene, which is about 164-170℃, and it is 100% isotactic polypropylene. Experts suggest that it is best to use stainless steel vacuum flasks, glass cups or ceramic cups for drinking water. This is more conducive to healthy drinking. However, it is strongly opposed to using plastic cups for boiling water or tea. For example, bisphenol A will be released at high temperatures above 100 degrees Celsius. come out. The material of the vacuum flask is generally divided into pc (food grade plastic), pp (general plastic), stainless steel, etc.

The above is about the development of silicone. If you want to know more news and trends, you can follow and click here. Our company also sells Silicone Molds, Silicone kitchenware, Silicone pet tags, Silicone Baby Products, Silicone wearable gifts and Silicone Healthy Products. You can click here if you are interested. Link or consult us.