Polyvinyl alcohol (PVA) fiber is a fiber with high modulus of elasticity, high tensile strength and high alkali resistance, and has been widely used in cement-based reinforcements. The research indicates that PVA fiber has good dispersibility in cement co
From the perspective of the cost and usage of the materials, the foam concrete can better meet the engineering quality requirements during the construction process, and can also make various construction materials according to the shape of the molding die
Muffling grease is different from low-noise grease, although both are designed to reduce mechanical noise, but low-noise grease is the noise that reduces its own composition, while muffling grease directly reduces or eliminates mechanical noise.
As a member of two-dimensional nanomaterials, Boron nitride is a honeycomb layered material in which boron atoms and nitrogen atoms are hybridized by sp2. Due to the polar boron-nitrogen bond between the layers, BN has excellent high temperature resistanc
Fiber, right, that is the fiber that is commonly used in textiles, medicine, and plastic products.
Due to the increasingly stringent environmental regulations, in order to reduce emissions, catalytic converters are widely used in engines. Since phosphorus can poison the catalyst therein, it is required to limit the phosphorus content in the engine oil