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1. The mold silicone and the curing agent are evenly stirred. The appearance of the mold silica gel is a flowing liquid, the component A is silica gel, and the component B is a curing agent. For example, 100 g of silica gel is added, and 2 g of a curing agent is added (Note:…
01
Aug
Aug
45# steel, belongs to high-quality carbon structural steel Uses: Commonly used as materials for shaft parts. Mechanical properties: good mechanical processing performance and strength hardness, quenching and tempering treatment, quenching temperature 820°~850°, return water temperature 600°~650°, HRC40°. High-speed SKH-9 (commonly known as wind steel), similar to the mainland brand W6CrM05V2 Uses: It is often used…
31
Jul
Jul
PEI refers to polyetherimide, which is an amber transparent solid. It has inherent flame retardancy and low smoke without adding any additives. The oxygen index is 47%, the combustion level is UL94-V-0, and the density is 1.28. ~1.42g/cm3. PEI has strong high temperature stability, even non-reinforced PEI still has good toughness and strength. The long-term…
31
Jul
Jul
PEEK is a high temperature resistant, high performance thermoplastic special engineering plastic. It has good mechanical properties, chemical resistance, abrasion resistance, hydrolysis resistance, etc.; it has light specific gravity and good self-lubricating performance. Due to its very good processing performance, it can be filled with carbon fiber, molybdenum disulfide, etc. to further improve the lubricating…
31
Jul
Jul
Characteristic: ①General performance: PPS is a white, high crystallinity, hard and brittle polymer. The relative density of pure PPS is 1.3, but it will increase after modification. PPS has a very small water absorption rate, generally only about 0.03%. PPS has good flame retardancy, and its oxygen index is as high as 44%. Compared with…
30
Jul
Jul
Acrylic has good weather resistance and strong hardness, and can be made into various required products, but acrylic is also good or bad, which is directly related to its service life, so what kind of acrylic material to choose becomes a headache for people. So, what are the performance characteristics and uses of acrylic material?…
30
Jul
Jul
1. ABS plastic is a terpolymer of acrylonitrile (A)-butadiene (B)-styrene (S). It combines the properties of three components, among which acrylonitrile has high hardness and strength, heat resistance and corrosion resistance; butadiene has impact resistance and toughness; styrene has high surface gloss, easy coloring and Ease of processing. 2. The structure of ABS resin includes…
30
Jul
Jul
Classification, characteristics and applications of polypropylene (PP) plastics Poly(propylene) (1) Polypropylene (PP) production process Polypropylene is made by addition polymerization of propylene, CH2=CHCH3, under the action of Z-N metal catalyst. (2) Production method of polypropylene (PP) ① Slurry method. Polymerization in a diluent (such as hexane) is the earliest industrialized method and the largest production…
29
Jul
Jul
Nylon is a kind of engineering plastic with excellent performance. It has excellent mechanical properties, outstanding corrosion resistance, oil resistance, heat resistance, high modulus and other advantages. Reinforcement and flame-retardant modification can significantly improve its heat resistance, modulus dimensional stability and flame retardancy, and are widely used in industries such as automobiles, electronic and electrical,…
29
Jul
Jul
The characteristics of pc material bai are: 1. Amorphous material, good thermal stability, wide molding temperature range and poor fluidity. zhi absorbs little moisture, but is sensitive to water, so it must be dried. Molding shrinkage is small, melting cracking and stress concentration are easy to occur, so molding conditions should be strictly controlled, and…