Due to its high compressive strength and low cost, concrete is the most used building material in the construction field. However, due to its large brittleness, easy cracking, low impact resistance and other shortcomings, it restricts its further development. The use of organic synthetic fibers t...
Concrete is a brittle material with high compressive strength and relatively low tensile strength. With the continuous development of modern construction technology, higher requirements have been put forward for cement concrete, the largest building material. Therefore, ...
30s is a specification of polypropylene, mainly used in the production of membrane crack fiber (agricultural rope, string, spinning, etc.) monofilament, stretch film, tube film, etc. T30s is the lightest of the general-purpose resins, with good rigidity, light transmission, corrosion resistance, ...
Hydraulic Filter also called hydraulic screen changer. It can be divided into: single plate double station screen changer, double plate double station screen changer, single column double station screen changer, double column double station screen changer, double column four station screen change...
Strap is also called packing belt, strapping belt and packing tape. Divided into PP strap (also known as polypropylene packing belt) and PET strap (also known as plastic steel packing belt), they are produced by using polypropylene and PET polyester as raw materials, respectively, and is suitable...
After more than a century of research and practice, concrete technology has made rapid progress, and concrete materials have become the largest and most widely used engineering materials in engineering construction today. Over the years, in the development of concrete te...
The main materials for brush monofilament are nylon (PA), PBT and PP and PET. Different materials have their own advantages.
1. Nylon brush filament has excellent mechanical properties, high softening point, heat resistance, low friction coefficient, wear resistance, anti-aging, oil resistance, a...
3. LLDPE
LLDPE is non-toxic, tasteless and odorless, and its density is between 0.915 and 0.935g/cm3. It is a copolymer of ethylene and a small amount of high-grade α-olefin under the action of a catalyst, which is polymerized by high pressure or low pressure. The molecular structure of conventio...
1. High-density polyethylene (HDPE)
HDPE is non-toxic, tasteless and odorless, with a density of 0.940-0.976g/cm3. It is the product of polymerization under low pressure under the catalysis of Ziegler catalyst, so high density polyethylene is also called low pressure polyethylene.
Advantage:
HD...
Nylon molecular formula contains amido group, amido group can form hydrogen bond with water molecule, so it has great water absorption. The various properties of nylon will vary depending on the amount of water absorbed. When the moisture absorption increases, the yield strength of nylon will de...
Plastic packaging twine, also called pp twine, binding twine and binding rope, is a plastic material that is melted and extruded or blown into a film, and then cut into narrow strips of a certain width. After stretching and shaping, it can become a material with high strength.
The raw material of...
As a green and environmentally friendly strapping and packaging belt, PET strap band packing belt has great advantages compared with PP packing belt and iron sheet packing belt, which can be distinguished from the following five aspects.
First, environmental protection ...