Pure PPO materials have the disadvantages of poor melting fluidity and high price. The products sold in the market are all improved products with excellent comprehensive performance. They are widely used in: electronics and electrics: they can meet the requirements of good electrical insulation under wet, load, and high temperature conditions. They are used to prepare tuning chips, coil cores, microwave insulation parts, shielding sleeves High frequency printed circuit board, various high-voltage electronic components, TV, computer, fax machine, copier shell, etc. Automotive industry: applicable to instrument panel, window frame, shock absorber, pump filter screen, etc. Machinery industry: used for gears, bearings, pump impellers, blower impellers, etc. Chemical industry: It is used to make corrosion-resistant parts such as pipes, valves, filters and submersible pumps.
1. It is a white particle. It has good comprehensive performance, can be used in 120 ℃ steam, good electrical insulation, small water absorption, but has a tendency to stress cracking. The modified polyphenylene oxide can eliminate stress cracking. 2. It has outstanding electrical insulation and excellent water resistance, good wear resistance and electrical performance, and good dimensional stability. Its dielectric properties rank first in plastics. 3. MPPO is a modified material made by blending PPO and HIPS, which is the material on the market. 4. It has high heat resistance. The glass transition temperature is 211 ° C and the melting point is 268 ° C. When heated to 330 ° C, it tends to decompose. The higher the content of PPO, the better the heat resistance. The thermal deformation temperature can reach 190 ° C. The hot deformation temperature can continuously change from 75-170 ℃ at 1.82 MPa. With the increase of PPO content, the temperature of the material is constantly rising, which is used to meet the performance requirements of different occasions. 5. Good flame retardancy, self breathing, and medium flammability when mixed with HIPS. It is light and non-toxic and can be used in food and drug industries. The light fastness is poor, and it will change color if used in the sun for a long time. 6. It can be blended with ABS, HDPE, PPS, PA, HIPS, glass fiber, etc. Properties of PPO plastic raw materials A, PPO plastic raw materials are non-toxic, transparent, and have low relative density, and have excellent mechanical strength, stress relaxation resistance, creep resistance, heat resistance, water resistance, water vapor resistance, and dimensional stability. B、 Good electrical performance in a wide range of temperature and frequency variation, non hydrolysis, small molding shrinkage, flame retardant, self extinguishing, poor resistance to inorganic acid, alkali, aromatic hydrocarbon, halogenated hydrocarbon, oil, etc., easy to swell or stress crack. C、 It has the advantages of high rigidity, high heat resistance, flame resistance, high strength and excellent electrical performance. D、 The polyether also has the advantages of wear resistance, non-toxic and pollution resistance. E. The dielectric constant and dielectric loss of PPO plastic raw materials are one of the smallest varieties in engineering plastics. They are almost unaffected by temperature and humidity, and can be used in low, medium and high frequency electric fields. F. The load deformation temperature of PPO can reach above 190 ℃, and the embrittlement temperature is - 170 ℃. G、 The main disadvantages are poor melting fluidity and difficult processing and molding.