PP K4715~TPEE耐由 ‖。PP MS65G20、HDPE ME2500、→，EVA 40-55、→，TPU DP1485A‖。 20D855、→，LLDPE CEL-9200、→，EVA N1012、‖。LCP NC-301-B、‖。PBT V4860HR、‖。PPO GTX8721、TPU STR/F-375、PP H343T4BK11、PC BFL2000、→，PA66 73G30L 、‖。PC 301-58LT、‖。EPDM S600F、PBT 3020-104、‖。POM F20-73R1、‖。PP 571P、PBT B4520、→，PPE AX300、‖。ABS BF-777B、‖。ASA XAR187 、‖。PA12 L16GM、‖。LCP MG-350-B、PP 1005PETG AN014、ABS PA-763A、→，LDPE 24F760、‖。PA66 RFL-4033、PA6 1011C45、PC/ABS HI-1001BP、TPE XG6029、LDPE LGA105NEXXSTAR、‖。PC ML-6500ZAL、‖。POM LV450、→，PPO SE100X、‖。PMMA A200、LCP E471iTPEE HTR6108 ETFE C-88AX、→，PBT 5220-BK、PBT B4040G10BK、→，LLDPE LL0209AA、‖。PA66 CR302、TPV 7100-73、→，POM GF304 BK COP 1420R、PP F680、PBT SV1120M、TPU D40-70/33、→，LDPE 820、‖。PBT 1100-211S、PA66 RA843、PP ERG320N、→，IXEF 1313、→，PP HX3900、PP 3825WZ 、→，FKM VPL85540、→，LDPE LD144BR、TPE API IA 65 SV/P、‖。PP 3275、→，TPU 2103-70A、→，EVA 9F1、‖。PC L-1250R、HDPE F00952J、‖。PP 7533、PA66 SP10S、‖。PA66 KDP1200、→，EAA 5050、‖。PA66 KDT1030、‖。PP R6400、→，MDPE ME3445AG、PPS PPS is a themopltic engineeing pltic containing zyl sulfide on the main chain of the molecule, which is a polyethe. It w industialized in the United States in 1968. The main methods of poduction in the industy wee solution polymeization and self condensation. The molecula stuctue of PPS can be seen, it is in the zene and sulfu atoms composed of altenately aanged linea o slightly banched polyme, the molecula chain of egulatoy integity, connected by a igid ing with flexible thioethe chain h a pimay key featues so PPS can move among foce and soft, cystalline, high melting point; secondly, because the zene and sulfu atoms conjugate fomation. And the sulfu atom is not in satuation, afte oxidation the thioethe bond into sulf goup, o the adjacent molecules to fom oxy bidge banched o cosslinked, the heat and oxy stability is outstanding; thid, due to the pola sulfu atoms ae conjugated and bound with high cystallinity, the (2) mechanical poties: the mechanical poties of pue PPS ae not high, especially the impact stength is low. Afte the gls fibe einfoced, the impact stength will be geatly inceed, fom 27J/m to 76J/m, inceing 3 times, the tensile stength is inceed fom 6Mpa to 137Mpa, inceing 1 times. The igidity of PPS is vey high and is ae in engineeing plt. The flexual modulus of pue PPS can each 3.8Gpa, and the inoganic fille can be modified to 12.6Gpa, and incee by moe than 5 times. The PPO, known fo its igidity, is only 2.55Gpa, and PC is only 2.1Gpa. PPS h good ceep esistance, high hadness and high wea esistance unde load. The wea ate of the 1000 tun time is only 0.04g. Afte filling F4 and molybdenum disulfide, it will futhe impove. PPS also h cetain self moistening poty. The mechanical poties of PPS ae less sensitive to tematue.(3) themal poties: PPS h excellent themal poties, shot-tem esistance at 260 DEG C, and can be used fo a long time at 200~240 DEG C; its heat esistance is compaable to that of PI afte F4 pltic, which in etting plt is also ae.(4) the electicity fomance: PPS's fomance is vey pominent, compaed with othe engineeing plt, the dielectic constant and dielectic loss tant values ae elatively low, and little change in high fequency, tematue and tematue ange; PPS ac esistance, compaable with etting plt. PPS is commonly used in electical insulation mateials, the amount of which can account fo about 30%.(5) chemical poties: one of the biggest chaacteistic of PPS is good esistance to chemical coosion, its chemical stability afte F4; PPS fo most acid, este, ketone, aldehyde, phenolic and aliphatic cabons, aomatic cabons, ated cabons such stable, not esistant to ated biphenyl and oxidig acid, oxidant, sulfuic acid, nitic acid, aqua egia, and hypochloite. The adiation esistance of PPS is good.(6) PPS h good flame etadancy and its oxy index is high 44%. Compaed with othe plt, it h high flame etadancy in plt. The oxy index of pue PVC is 47%, PSF is 30%, PA66 is 29%, MPPO is 28%, PC is 25%.Poduct use(1) automotive industy: PPS accounts fo about 45% of the automotive industy. It is mainly used fo automotive functional pats, ignite, heate, tat, lampholde and beaings. Fo example, it can eplace exhaust valves, pump impelle and pneumatic signal mediato instead of metal.ABS (1) the technological pocess of pltic coatingAnneal o whole face teatment, goline whing, chemical degeing, wate whing, wate whing, pue wate whing, moistue dying, electicity and dust emoval, spayed ABS pltic coating, flat ai dying o dying (60 C, 30min).(2) the condition of spaying constuctionThe spaying tematue is (25 + 5) C. The elative humidity of the constuction is not moe than 80%. When the humidity is too lage, CHA - 13 o F - 1 moistuepoof at is added to the paint to pevent the coating fom whitening.(3) constuction pocess paametesThe viscosity of the constuction w adjusted to 11-13s with the diluent in the spaying constuction, and the filte w filteed with 74 mu m (200 mesh) cop wie mesh. Using a small calibe spay gun, the pessue of the spay compessed ai is 0.35~0.50MPa. The distance between the spay gun and the wokpiece is 30~50cm.(4) paint dyingThe thickness of the pltic ABS coating is 15~20 m, and the 2~3 channel is usually spayed to complete. Dy 15min afte spaying, and spay it second times. Tanspaent coatings must also be spayed on the bight suface. Afte coating, it can be died at oom tematue and bake 30min at 60 C.Though the suface teatment and coating of ABS plt, the compehensive poties of ABS plt can be effectively impoved.Pospects fo developmentABS is a eal themopltic engineeing plt developed in the 40s of lt centuy. It is a pltic vaiety with excellent mechanical poties. It h not only good igidity, hadness and pocessing fluidity, but also high toughness, which can be molded, extuded o themofoming. Most automobile pats ae pocessed by injection molding. The advantages of ABS esin ae punching esistance, sound insulation, scatch esistance, bette heat esistance, and moe beautiful than PP, especially fo tansvese punching esistance and tematue. ABS esin is the thid lagest esin in automobile, which is second only to polyuethane and polypopylene. ABS esin can be used in the oute shell of the ca and the ca, the steeing wheel, the guide oil pipe and the handle and the button and othe small pats. The outside of the ca includes the font adiato gatings and the lampshade.PP ModifiedGaft modificationIn the ealy 1990s, the United States advanced the advanced solid phe gafting modification method, and now developed elated poducts, such ation modified PP (mCPP) esin poduced by Etman company, which sells fo about 500000 yuan ton in ou maket. Modified PP (MPP) and mCPP ae used special PP special mateials, which geatly expand the application ange of PP and have geat economic efits. MPP w obtained by solid phe gaft copolymeization of pee-to-pee (PP), and then mCPP solid powde esin w obtained by ation of MPP. The esin modified by ation h stong adhesion, high elongation modulus and ey to blend with othe esins. Moeove, due to modification, the cystallization of PP is destoyed, the polaity is inceed, so it can be dissolved in e solvents, and mCPP solution with diffeent concentation is pepaed.Thee ae fou main pects of the use of MPP. One is to impove the impact esistance of engineeing plt. Using MPP compatibilize, the impact stength of blends pepaed by PP and othe plt to enhance 2~3 times, can be used anti impact shell mateial; two dexpo exfe pltic alloy development company, is a polyamide and PP compatibilize in the pesence of alloy, h been commecialized; thee is used themopltic powde coatings and fo the metal substate suface to esist coosion and esistance effect of chemicals. The nozagl-giz band poducts of Japan ae PP and nylon alloy mateials. They ae highly esistant to chemicals and oil esistance, especially with excellent esistance to potsium chloide. The thee is to enhance the adhesion of PP filles. The intoduction of MPP can impove the compatibility of filles and PP, impove the poties of composites, impove the oveall themal stability and local heat esistance of the composites. Fou, MPP is also applied to the solidification of fee adical active wte. In addition, MPP can also be used to impove the dyeability of PP fibes and the decoation of pltic poducts, and to make steamed packaging mateials. Fom the maket, the total domestic demand of PP yea is about 3500000 tons, of which PP special mateial is moe than 1 million tons. Gafting modification of PP demand to 100 thousand tons / yea, mainly used with othe polyme mateials such nylon, polyca, ubbe blend, pepaation of novel polyme mateial; adding filles such inoganic powde, gls fibe, natual fibe, pepaation of high stength PP; futhe pocessing poducts, used in powde paint, paint and othe liquids. At pesent ou county isotactic PP solid phe gafting modification method is still blank, thee is no such poducts into the maket, the vacancy mainly ely on impots, Gemany Hoechst company in China to pomote the modified PP poduct is piced at 15000~18000 yuan / ton.The use of mCPP ae mainly: one is used fo the pepaation of pltic poducts with adhesion pime and decoative coatings fo pltic suface of the pomote, especially fo ca bum, wheel cove, TV cabinet of civil and industial pltic coating appaatus; two is used the pltic suface pinting ink esin; thee is used coating esin. Fo steel, aluminum and othe mateials Tu field of heavy-duty.
