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The Winter Solstice, also known as Nichinan Solstice, Winter Festival, and Asian Sui, has two connotations of nature and humanity. It is not only an important solar term in the twenty-four solar terms, but also a traditional Chinese folk ancestor worship festival. The winter solstice is one of the four o'clock and eight festivals. It is regarded as a big winter festival. In ancient people, there was a saying that "winter solstice is as big as a year". The customs of the winter solstice ...

Because there is relatively stable molecular structure Si-O-Si similar to inorganic acid salt in silicone polycondensate, no matter it is liquid, solid or elastomer polymer, it has high heat resistance and chemical stability. , Excellent electrical insulation and very good hydrophobicity.1) High temperature resistanceGenerally, the heat-resistant temperature of synthetic resin paint is below 150°C, while silicone paint can be used for a long time at 200°C. If high-temperature pigments are adde ...

Textile waterproofing agents are generally processed on textile fabrics or clothes. The specific methods of use are as follows: 1. Padding method: The waterproofing agent is formulated into working fluid, and the working fluid is passed through the rolling groove on the setting machine, dried, and shaped (the setting temperature is based on Fabrics of different materials have different temperature requirements); 2. Dipping method: mix the water-repellent agent into a working fluid in a certain p ...

Resin usually refers to an organic polymer that has a softening or melting range after being heated, and has a tendency to flow under the action of external force during softening. It is a solid, semi-solid, or liquid organic polymer at room temperature. In a broad definition, any polymer compound that can be used as a raw material for the processing of plastic products is called a resin.The relative molecular weight is uncertain but usually high. It is a solid, medium solid, pseudo-solid, and s ...

The application technology of silicone in coatings (including inks) has developed from professional, high-performance coatings to a wider range of fields. Through the application of silicone technology, the insulation, heat resistance, weather resistance, antifouling, abrasion resistance and other properties of the coating can be improved. The following is introduced according to its use.Insulation MaterialsThe first application technology of silicone resin as a coating was silicone resin-impreg ...

According to the chemical structure and composition of the coupling agent, it is divided into four categories: organic chromium complexes, silanes, titanates and aluminates:Folded chromium complex couplingAgent Chromium complex coupling agent was developed in the early 1950s. The metal chromium complex formed by unsaturated organic acid and trivalent chromium ion has mature synthesis and application technology and low cost, but the variety is relatively single.Folding titanate coupling agentAcco ...

Coupling agent is also called surface modifier. It can reduce the viscosity of the synthetic resin melt in the plastic processing process, improve the dispersion of the filler to improve the processing performance, and then make the product obtain good surface quality and mechanical, thermal and electrical properties.1. Classification of coupling agentAccording to the chemical structure and composition of the coupling agent, it is divided into four categories: organic chromium complexes, silanes ...

Silicone resin is a collective term for a type of polymer in which silicon atoms and oxygen atoms are alternately connected to form a skeleton, and different organic groups are connected to silicon atoms. The structure of silicone resin contains both "organic group" and "inorganic structure". This special composition and molecular structure make it a combination of organic and inorganic functions. The following editor introduces the properties of silicone resins and the uses ...

Quaternary ammonium salts used as softeners, according to theirIn terms of learning structure, there are mainly the following:Among the above four quaternary ammonium softeners, except for the first type of alkyl trimethyl quaternary ammonium salt, which tends to be eliminated, the other three are full of vitality. Their applications on textiles are divided into three types, namely; washing softener, household softening conditioner and fabric softener. The softening effect of dialkyl dimethyl qu ...