POM 900P╚ POM 900P ‖。TPU D11H95S PA610 QCL-4036 BK 、TPU D16N60D PETG T95 PA46 KS200 、TPU GP95AE 、→，PTFE 150 、LCP E130i 、PC S-2000UVR WH 、→，PPS CF30 、TPU DP3690AU 、PC/ABS T85 XF 、PP AV161 、PP R01A-00 、→，PTFE D-46 AES HW610HT 、PP H14A-00 、‖。PP MS-1002BK8-075-5 、‖。PC 303-22 、TPE 9007 、→，MBS BTA-780S 、PC DX06313-701 、PMMA ST25H8 、TPE TC7NYZ 、TPU AH-660 PA12 L2170 、→，POM GF702WH 、PC GP1000MR 、PP J-3000GP 、PP J-560K 、‖。PC/ABS SN-280-G30-V0 、PP HP480S 、PBT 3210 、‖。PPS 714 、‖。TPE TPSD333-60A 、‖。TPU U-95AU20 、→，PP R370F 、‖。TPE HX-086AB 、→，PA66 RX03013 、LDPE LD123.LNFilm 、‖。PP RB4404 、‖。TPE TO-1088A 、PA66 A30H3.0 、‖。TPU 2103-55D 、→，TPE TO1192A MV、PBT 419 、→，PP R35C-02 、PC/ABS 7210A 、‖。PC GN2101FC 、→，TPU 3065D 、‖。TPE HX-145DB EPDM 3090E 、→，PP 5350T 、PA6 1013G45-1 、TPE 6003-75AUV 、PP LW-4407 、‖。PP PHP120G 、‖。PBT LW9320 BK 、→，EVA UL04331EL ‖。 420A 、‖。POM FG311DP 、PMMA V825-HID 、PC DF003E 、PC/、LDPE 8000AP 、‖。POM C9021GV1/30 、→，ASA U500 、‖。PC/ABS GP-5001RF 、HDPE FD60-018 、→，TPU V2821 、→，PC/、‖。PBT F202G30 、‖。PPS A515 、→，PA610 3261THSLBK 、‖。PP HF-3308 、 POM performance parameter Performance index homopolymer POM copolymerization POM 25%GFPOM relative density One point four three One point four one One point six one Water absorption rate,% Two point five Two point one - Molding shrinkage rate,% 1.5 ~ 3 1.5 ~ 3.5 - Tensile strength, MPa Seventy Sixty-two One hundred and thirty Elongation at break,% Forty Sixty - Bending strength, MPa Ninety Ninety-eight One hundred and eighty-two Tensile modulus of elasticity, MPa Three thousand one hundred and sixty Two thousand eight hundred and thirty Eight thousand and three hundred Flexural modulus of elasticity, MPa Two thousand eight hundred and eighty Two thousand and six hundred Seven thousand and six hundred Compression strength, MPa One hundred and twenty-seven One hundred and ten - Shear strength, MPa Sixty-seven Fifty-four - Notch impact strength, (J/m) Seventy-six Sixty-five Eighty-six Rockwell hardness M94 M80 - Friction factor - Zero point one five - Fatigue limit, MPa Thirty-five Thirty-one - Thermal deformation temperature (1.82MPa), centigrade One hundred and ten One hundred and twenty-four One hundred and sixty-three Long term use temperature, centigrade Eighty One hundred - Coefficient of linear expansion (x 10K) Seven point five Eight point five Two point six Thermal conductivity [W/ (m ? K)] Zero point two three Zero point two three - Volume resistivity, Omega cm Ten Ten 3.8 x 10 Dielectric constant (10Hz) Three point eight Two point seven PPO L) non crystalline material, moisture absorption is small, the PPO water absorption rate is very low, but the water will make the product appear on the surface of silver, bubbles and other defects, therefore, can be placed in the oven raw 80~1OOC Shen, dry 1-2h after use. 2) the molecular bond of PPO is very rigid, and the glass conversion temperature is high, and it is not easy to orientate, but it is difficult to relax after forced orientation. Therefore, the residual internal stress in the product is high, and it should be treated after the post. 3) PPO is an amorphous material. The rheological properties of the material in the melting state are close to the Newton fluid, but the greater the degree of deviation from the Newton fluid as the temperature rises. 4) the viscosity of PPO melt is large, so the temperature should be improved and the injection pressure should be improved to improve the filling ability. 5) the reuse of PPO can be reused, and it is used repeatedly 3 times, and its performance is not significantly reduced. 6) the PPO melt should be molded by a screw injection molding machine. The nozzle has a good straight through, and the aperture is 3-6mm 7) in PPO injection molding, high pressure and high speed injection should be taken, and the time of pressure protection and cooling should not be too long. 8) the sprue mold should adopt large taper?or?by pulling hook, sprue to stub as well. 9) the gate should be directly, fanned?or?flat, and the diameter should be increased properly when the needle gate is used, and the structure of the hot runner can be used for the long cast. 10) the forming shrinkage rate of PPO is small, which is generally 0.2% 1 0.7%, so the product has good size stability. 11) poor fluidity, which is similar to Newton fluid, the viscosity is more sensitive to the temperature, and the thickness of the product is generally above 0.8 mm. It is very easy to decompose, and the corrosion gas is produced when decomposing. The molding temperature should be strictly controlled. The mold should be heated and the flow resistance of the feed system should be small. 12) water polyphenylene ether's low rate of about 0.06%, but the trace moisture can lead to smooth silver and other phenomena appear on the surface of the product, it is best for the drying process, the temperature can not be higher than 150 degrees, otherwise the color will change. 13) the molding temperature of polyphenylene ether is 280-330 degrees, and the molding temperature of the modified polyphenylene ether is 260-285 degrees. PPO plastic raw material injection process melting temperature: 270-290 C application area