POM-C/H (black, white): represents POM copolymer and POM homopolymer, respectively. POM copolymer has low melting point, thermal stability, chemical corrosion resistance, flow characteristics, hydrolysis resistance, strong alkali resistance and thermal oxidation degradation, and better processability than homoformaldehyde.
POM homopolymer has higher crystallinity, creep resistance, lower thermal expansion rate, better wear resistance, mechanical strength, rigidity, and thermal deformation temperature than co formaldehyde. (Currently, POM-C copolymerization is commonly used for POM semi-finished products on the market)
POM-H+PTFE (dark brown POM-H+TF) is extruded from DuPont POM (DELLIN) raw material and PTFE (Teflon) fibers. It retains most of the inherent strength of POM-H. Due to the addition of PTFE (Teflon) fibers, there are some performance changes, which are slightly soft, less rigid, and smoother than pure polyoxymethylene resin. Compared with pure POM board, this material has better lubricity. The bearings made of POM-H+PTFE have low friction coefficient, wear resistance, and almost no creep phenomenon.
(1) POM is a crystalline plastic with a density of 1.42g/cm3. It has good toughness and is commonly known as "Saigang"
(2) It has excellent properties such as fatigue resistance, creep resistance, wear resistance, heat resistance, impact resistance, etc., and has low friction coefficient and good self-lubrication
(3) POM is not easily hygroscopic, with a water absorption rate of 0.22-0.25%. It has good dimensional stability in humid environments, with a shrinkage rate of 2.1% (relatively large). It is difficult to control the size during injection molding, with a thermal deformation temperature of 172 ℃. There are two types of polyoxymethylene: homopolymer and co polymer, with different properties (homopolymer has better temperature resistance)
Guangzhou Yayan Plastic Products Co., Ltd. Spot supply: PEEK board/rod, PPS board/rod, PVDF board/rod, PTFE board/rod, PSU board/rod, PEI board/rod, PI board/rod, PAI board/rod, PPO board/rod, PBT board/rod, CPVC board/rod, UPE board/rod, PETP board/rod, PC board/rod, POM board/rod, ABS board/rod, PMMA board/rod, PP board/rod, PE board/rod, imported PU board/rod, German PES board/rod, domestic PVC board/rod, Swiss engineering PBI board/rod German PA nylon series board/rod/sheet, MC nylon series board. Insulation materials: Taiwan red and black electric wood boards, cold drawn boards, phenolic laminated cloth rod boards, insulation boards, epoxy glass fiber rod boards, epoxy board (FR-4) asbestos boards, etc. Anti static products: anti static POM board/rod, anti static organic board, anti static PC board, anti static PVC board/rod, anti static nylon board/rod synthetic stone board, etc.
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Imported anti-static POM board, anti-static POM rod, anti-static pressure rod, and anti-static polyformaldehyde board. The anti-static POM board is made of polyoxymethylene as the substrate and added with carbon based fillers. Its impedance value is stable, and it exhibits high performance characteristics in the field of anti-static materials. The anti-static value of all parts of the anti-static POM board is the same, and the overall resistance value is 106-109 Ω. After mechanical processing or surface wear, the anti-static value remains unchanged, resistant to organic solvents, insoluble at room temperature, and has excellent low temperature performance. The use temperature is -40-90 ℃, with excellent friction resistance and anti potential modification, High mechanical strength, high rigidity and hardness. Good sliding performance, non water absorption, high mechanical strength, and excellent processing performance.
Color: Natural/Black
Specification and size of POM board: 0.5mm-100mmX510/610mmX1000/200mm
Specification and size of POM board: 5-300mm
Color: Natural/Black
Process characteristics:
(1) Before POM processing, drying is not necessary. It is best to preheat (around 800 ℃) during the processing, which is beneficial for the stability of product size
(2) The processing temperature of POM is very narrow (0-215 ℃), and it will decompose when it stays in the barrel for a slightly longer time or when the temperature exceeds 220 ℃, producing highly irritating formaldehyde gas
(3) When injecting POM material, the pressure maintaining pressure should be relatively high (similar to the injection pressure) to reduce pressure drop. The screw speed should not be too high and the residual amount should be less;
(4) POM products have a high shrinkage rate and are prone to shrinkage or deformation POM has a high specific heat and high mold temperature (800~100 ℃), making the product very hot during demolding. It is necessary to prevent finger burns
(5) POM should be formed and processed under the conditions of "medium pressure, medium speed, low material temperature, and high mold temperature". When forming precision products, it is necessary to control the mold temperature
(6) High mechanical strength and rigidity
(7) Maximum fatigue strength
(8) Excellent environmental resistance and organic solvent resistance
(9) Strong resistance to repeated impacts, good electrical properties, good resilience, self lubrication, good wear resistance, and excellent dimensional stability
Application of POM:
It can replace most non-ferrous metals, automobiles, machine tools, instrument interiors, bearings, fasteners, gears, spring plates, pipelines, transportation belt accessories, electric water cookers, pump shells, drains, faucets, etc