PPS plastic polyphenylene sulfide Phenylenesulfide glass fiber reinforced grade

PPS plastic polyphenylene sulfide Phenylenesulfide glass fiber reinforced grade

Product Description Product Description	PPS enhancement level
Product grade	Injection Molding Grade
Product appearance	Character / black / other colors / particles

PPS plastic polyphenylene sulfide Phenylenesulfide glass fiber reinforced grade

English name: Phenylenesulfide Specific gravity: 1.36 g / cubic centimeter Shrinkage: 0.7% Molding temperature: 300-330 ℃. It is a comprehensive performance excellent thermoplastic special engineering plastics , its prominent feature is high temperature, corrosion resistance and superior mechanical properties. PPS is a sulfur-containing aromatic polymer, linear PPS at 350 ℃ after the cross-linked thermosetting plastic , branched-type structure PPS for the thermoplastic. , Pps has very excellent thermal performance. Adding glass fiber reinforced thermal performance index higher, at 232 degrees C after 5000h heat aging, such as glass fiber, carbon fiber, filler, etc. to enhance its mechanical properties, modified pps in the long-term workload and heat load The role of maintaining high mechanical properties and dimensional stability, which can be applied to the high temperature of the stress environment.

Chemical resistance: At present, it has not been found that solvents that can dissolve polyphenylene sulfide below 200 ℃ are highly resistant to inorganic acids, alkalis and salts. Resistant to chlorinated biphenyls and oxidizing acids, oxidants, aqua regia, hydrogen peroxide and sodium hypochlorite.
PPS resistance to radiation is good, radiation resistance to Gy 1 × 108, other engineering plastics can not match the new materials, in the electronics, electrical, mechanical, instrumentation, aviation, aerospace, military, especially in the atomic bomb, The only ideal material for radiation.
PPS itself is quite stable chemical structure, but also contains the flame retardant element - sulfur, therefore, PPS has excellent flame resistance. The test piece was ignited and the flow rate of oxygen and nitrogen was adjusted to observe the combustion conditions. And just let the test piece continued to burn the oxygen concentration is the limit oxygen index, the higher the value that the better the fire resistance. Pure PPS limit oxygen index can be as high as 44, also has excellent flame resistance. PPS containing filler or glass fiber has a higher limit oxygen index and a higher flame resistance.
Pure PPS can be passed through UL-94 V0 at a thickness of 0.8mm. Basically, the UL94 flammability of the various grades of PPS, except for a few grades, such as the super toughness series, belong to the V-0 level and is the best grade in the UL 94 flammability. Super tough series PPS contains some toughening agent, will sacrifice some of the flammability.
Pure PPS and no added conductivity of the PPS grade are excellent electrical insulation properties. The addition of carbon fiber to the PPS grade has a relatively low volume resistivity.

PPS Features:

(1) general performance: PPS is a white appearance, high crystallinity, hard and brittle polymer, pure PPS relative density of 1.3, but after modification will increase. PPS has a very small water absorption, generally only about 0.03%. PPS has a good flame retardancy, and its oxygen index is as high as 44%. Compared with other plastics, it is a high flame retardant material in plastic (47% for pure PVC, 30% for PSF, 29% for PA66, MPPO was 28% and PC was 25%).

(2) mechanical properties: pure PPS mechanical properties are not high, especially the impact strength is relatively low. With the glass fiber reinforced will greatly improve the impact strength, increased from 27J / m to 76J / m, increased by 3 times; tensile strength increased from 6Mpa to 137Mpa, increased by 1 times. PPS is very rigid, rare in engineering plastics. Pure PPS flexural modulus up to 3.8Gpa, inorganic filling modified up to 12.6Gpa, increased by 5 times. And known for the rigid PPO only 2.55Gpa, PC only 2.1Gpa.

PPS under the load creep resistance is good, high hardness; high wear resistance, the 1000 rpm when the wear is only 0.04g, F4 filled with molybdenum disulfide and then will be further improved; PPS also has a certain self Run. PPS mechanical properties of the temperature sensitivity of the small (3) thermal properties: PPS has excellent thermal performance, short-term resistance to 260 ℃, and can be used at 200 ~ 240 ℃ long-term use; its heat resistance and PI equivalent In F4 plastic, which is rare in thermosetting plastics.

(4) Electrical properties: PPS electrical performance is very prominent, compared with other engineering plastics, the dielectric constant and dielectric loss tangent values ​​are relatively low, and in the larger frequency, temperature and temperature range change is not ; PPS arc resistance is good, comparable with thermosetting plastic. PPS commonly used in electrical insulation materials, the amount can account for about 30%.

(5) environmental performance: PPS one of the most important characteristics of chemical resistance, and its chemical stability after F4; PPS on most acids, esters, ketones, aldehydes, phenols and aliphatic hydrocarbons, aromatic hydrocarbons, And other stable, not resistant to chlorinated biphenyl and oxidizing acid, oxidants, concentrated sulfuric acid, concentrated nitric acid, aqua regia, hydrogen peroxide and sodium hypochlorite. PPS has good radiation resistance. In addition, pps has better heat resistance than nylon, good dimensional stability, excellent resistance to oil and resistance.

1) Automotive industry: PPS for the automotive industry accounted for about 45%, mainly for automotive functional parts, igniter, heater, thermostat, lampholders, bearings; can replace the metal cylinder exhaust valve and pump impeller , Pneumatic signal mediator and so on.

(2) machinery industry: for the shell, structural parts, wear parts and sealing materials, specifically the pump, valves, bearings, bearing bracket, piston rings and gears.

(3) textile fiber: for special industrial dust removal equipment.

(4) film / insulating paper: for motor insulation materials.

Polyurethane (Xiamen) Technology Co., Ltd. long-term supply of various modified PPS engineering plastics, operating plastic products include: enhanced nylon, reinforced flame retardant nylon, flame retardant nylon, toughened nylon, wear-resistant nylon, carbon fiber nylon, ABS, PP , POM, PC, PBT, etc ... The company's products are good, the industry scale is a high level of domestic products with characteristics, complete specifications, quality assurance system norms. Welcome to order, thank you!