< PBT 175 〉 防火 ‖。TPU ETE70DT3 、‖。PP HI5205 、→，PP BB122E-LT 、→，PLA AW300D HDPE 5500B 、→，PC 6255 、→，EVA MB600 TPE G7410-1000-00 POM N2320U017U 、‖。PPS 6162A7 PC DX01303C 、→，POM KL002 、→，THV FC2123 、→，PP SFC-750D 、→，XLPE LE4212R 、→，PBT UT 4045 、→，EVA VE700 PP H2220 LCP A515D-2 BK 、→，TPU 11T80 PP P9435 M、→，PPS FM-MK124 、‖。TPU 45-60/25 、‖。PC F23R PP H303-02 HDPE HD5620 LDPE RCP770C/CW PPS GP4600LG 、→，TPEE VT3108M 、→，PC/ABS XT50 PC Rx1452 PC/PBT 5220 、‖。PP 73F4-4 、‖。TPU 5717 TPU UD-66D10 、‖。ASA/PC TA-15 HB 、‖。TPU 5799 PBT 5010R3-2 PA66 PA830 、→，EVA AFDP1171/1/270 PA6 T-422VOR HDPE BM3245 、‖。ABS 755A PA66 RX09411H 、‖。POE DF740 、‖。TPU US106B HDPE DMDC-1210NT7 PP T131N 、‖。PA6 K224-LGM35 HDPE AA48-002 、→，EVA D5010 、→，TPO 277P EVA UL 05540EH2 TPU 64DC PC G4F22R 、‖。TPEE 447 、→，PC K-30UVR MPE 3527PA PC/、‖。PA66 K224-HG6 PBT WFL28 ABS XG-570 、‖。POM UV25Z 、‖。TPE TS5ACZ PA6 6GF30GID 、‖。PC HN-3102G EVA 560A PA6 1330GF PMMA MD 、‖。PA66 R2000 、‖。PPS OE003A 、→，AS PN-138H PMMA Methacrylic Acid TPE TP0CCN 、→，LDPE 320E 、→，PP MFP22KA2 、→，PP RB801CF-11 、‖。PC LUX9616 、‖。POM FB-2015 LDPE LD151BW PP SP30 、‖。PEI 1285-7101 、‖。PEI 4001 、→，PC1 、→，PA9T TA114 、‖。PP 3353-01 PA6 PF008QS 、→，LDPE 183 、‖。PC EGN2020DR BK 、→，PC/ABS C6303 PP 1040F PC 2081-12 PBT CL3230 HDPE BU46-055 、→，EVA 1633 、‖。TPU DI、‖。 FL00206 ASA/PC XP4034 BK 、→，CAB 285E0V16304 、‖。TPE DGR6380NC 、‖。TPU 368D HDPE DMDB-7950NT7 PA6 KN133G33 PA66 6030 TPE TP7CCZ PP 3225MC HIPS 1300 PBT 5010GT15 PMMA DF22 8N 、→，LLDPE UF313 、‖。PA66 GP3200B 、‖。LCP FG6330 、‖。PA6 7304 PA12 L2140 、→，PA6 B4001 POE DF810 PC/ABS GN5001RFT 、‖。PC B-4120R 、→，AS HR-2207 、‖。PC DF008ER 、‖。PC PC1000 、→，LDPE N-34 、 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