About ZhengZhou Quartz Master New materials Co., Ltd. Introduction

ZhengZhou Quartz Master New Materials is a high-tech enterprise engaged in the research, development, production, and sales of high-molecular-weight ceramic precursors, ceramic-based composites, and high-performance ceramic fibers. Our solid polynitrogen silane series products are ternary (SiCN) ceramic precursors, distinct from the binary (SiC) ceramic precursor polycarbosilane. This diversity of elements results in a diverse composition, which in turn provides high-temperature stability. Our solid polynitrogen silane series products are industry leaders in achieving mass production.

Polysilane products are new cutting-edge materials in the 21st century. They are new basic materials for upgrading and replacing dual-use military and civilian products that are monopolized by foreign countries, lack in the industry, are the focus of military industry, and are urgently needed by the country. The finished products after ceramicization have multiple properties such as high temperature resistance, high strength, high hardness, high toughness, ultra-thinness, wear resistance, corrosion resistance, adhesion, and waterproofness.

Product Performance:

It is non-evaporable due to strong hydrogen bonding between molecules. It can adhere to most substrates, forming chemical bonds. In the temperature range of 100-300°C, crosslinking occurs between molecules, transforming them into a transparent hard plastic. In the temperature range of 400-700°C, the organic groups on the molecules decompose, accompanied by the release of small hydrocarbon molecules, ammonia, and hydrogen. In the temperature range of 700-1200°C, a three-dimensional amorphous network structure is formed, called SiCN ceramic, with a density of ~2 g/cm³. Above 1500°C, a Si3N4/SiC crystalline phase is formed, with a density of ~3 g/cm³.

Product Application:

1. A precursor for advanced ceramics used in the preparation of ceramic-based composites, ceramic fibers, ceramic coatings, porous ceramic materials, and ceramic films.
2. An organic resin used in the preparation of high-temperature-resistant, flame-retardant, high-strength engineering plastics and organic glass, and in corrosion-resistant, anti-graffiti, and abrasion-resistant coatings.
3. An adhesive used for high-strength bonding of all materials, including metals, ceramics, glass, plastics, rubber, wood, stone, cement, fibers, and fabrics.
4. Used in porous materials to prepare macroporous, mesoporous, and microporous materials for catalyst support and thermal insulation.

Product application scenarios

The difference between PDC ceramics and traditional ceramics

Traditional ceramic materials are manufactured through powder processing and sintering, resulting in a crystalline structure that is brittle and restricts the shape of the resulting products.

PDC ceramics form a nano-network structure (an amorphous structure, similar to the structure of polymers), making them tough. Like plastics, their shapes are unrestricted, allowing them to be used to create complex mechanical components.

PDC ceramics not only overcome the brittleness of traditional ceramics, but are also lightweight, high-strength, and can be used in extreme environments with high temperatures and strong corrosion. They perform better than traditional metal alloys at extreme high temperatures and can uniquely combine high-temperature stability, corrosion resistance, and necessary strength.

Ceramic-based composites prepared with polysilane

Ceramic matrix composites (CMCs) are a significant technological advancement because they can address a wide range of high-temperature military and defense needs.

Due to the high strength of ceramic fiber reinforcement, smooth surface coatings, and high-temperature resistance of the ceramic matrix, they can even outperform the most advanced exotic refractory metals or alloys in the manufacture of next-generation turbine engines, missiles, rocket propulsion, high-temperature heat shields, and high-efficiency energy (nuclear energy).

They weigh approximately one-third of their metallic counterparts.

While metals and alloys led the way in the 19th and 20th centuries, CMCs are a game-changer in the 21st century.

In continuous fiber-reinforced ceramic matrix composites (CFCCs), embedded fibers enhance the mechanical properties of the matrix material, particularly by inhibiting crack propagation. These composites exhibit pseudoplastic behavior, resulting in increased damage tolerance in ceramic components. CFCCs are used in high-performance aerospace and military applications, such as heat shields, aircraft exhaust systems, and rocket nozzles.

SiCN ceramic fiber and carbon fiber coating prepared by polynitrogen silane

SiCN ceramics made from polysilazane are particularly interesting materials for high-temperature applications because their amorphous structure can be maintained up to relatively high temperatures.

This structure enables SiCN ceramics to maintain good mechanical properties and creep resistance up to 1500°C. Ceramic fiber processing involves four main steps:

First, a low-cost polymer with good spinnability and sufficient stability to air and moisture must be synthesized.

The second step is melt spinning to produce raw fibers.

The third step is solidification of the raw fibers to produce non-melting fibers.

The fourth step is pyrolysis and ceramicization.

Resin coatings and ceramic coatings prepared with polysilane

Ceramic coatings prepared with polynitrogen silane can modify the surface of base materials (metals, plastics, bones), including changing the surface’s oxidation resistance, wear resistance, antibacterial activity, hardness, optical behavior, water resistance, catalytic activity, thermal conductivity, friction properties, chemical resistance, and electrical conductivity, thereby expanding the material’s application areas.

Polysilane is used as an anti-graffiti coating. The free surface of the coating reacts with moisture to form a siloxane-like structure, which makes it easy to clean. For example, German railway carriages use polysilane as an anti-graffiti coating.

Polysilane is used as a thermal barrier coating. Polysilane thermal barrier coating has the following advantages: high temperature resistance, low surface energy, easy cleaning, chemical resistance, corrosion resistance, fluorine-free, excellent thermal oxidation resistance, and no scaling (delamination, peeling).

Polysilane is used as an anti-corrosion coating. Polysilane coating has anti-corrosion effect and can withstand the erosion of sunlight radiation, moisture, chemical gases, and storms. In particular, the coating used on metal can protect the metal from oxidation corrosion and chemical corrosion.

Polysilane as an automotive paint coating. Environmental factors challenge automotive paint coatings in several ways: wind, weather, sand, rainstorms, car washes, and sun exposure. Polysilane coatings provide a lasting shine and long-lasting color, as well as resistance to abrasion and scratching.

If you need to order our materials or have other cooperation, please contact our headquarters or us. We look forward to our cooperation.