POM.MR270B.－

东莞市千泰塑胶原料有限公司为您提供pom.mr270b.－。pom.mr270b.－
pa66
it is widely used in manufacturing machinery, automobile, chemical&electrical devices parts, such as gears, rollers, pulley, roller shaft, impeller, fan blade, high pressure seal, valve seat, gasket, bushing, various handles, support frame, inner layer of electric wire&so on.
injection molding condition
injection pressure
it is usually in 750~1250bar, depending on the design of materials&products.
injection speed
high speed (for reinforced material should be slightly lower).
runner&gate: the location of the gate is very important because of the short solidification time of the pa66. the gate diameter of the gate should not be less than 0.5*t (here t is the thickness of the plastic part).
production method
pa66 the first section
polyamide resin, the english name is polyamide, referred to as pa. it is commonly known as niron (nylon), which is contained in the repeating unit of the main chain of the macromolecule
the general name of the polymer of the amide group. among the five major engineering plastics, the highest yield, the most variety&the most widely used are the varieties. main varieties of nylon
nylon 6&nylon 66 dominant, nylon 6&nylon 66 nylon, polyhexamethylene adipamide, nylon 66
it is more hard l2% than nylon 6, followed by nylon 11, nylon 12, nylon 610, nylon 612,&nylon 1010, nylon 46,&nylons.
long 7, nylon 9, nylon 13, new varieties of nylon 6i, nylon 9t&spe---l nylon mxd6 (barrier resin), nylon modified varieties
there are many kinds, such as reinforced nylon, monomer casting nylon (mc nylon), reaction injection molding (rim) nylon, aromatic nylon, transparent nylon,
high impact (super toughened) nylon, electroplated nylon, conductive nylon, flame retardant nylon, nylon with other polymer blends&alloys,&so on, meet different characteristics.
it is widely used as a substitute for metal, wood&other traditional materials.
the characteristics&application of the second section
first, characteristic
as a large amount of engineering plastics, nylon is widely used in the fields of machinery, automobiles, electrical appliances, textile equipment, chemical equipment, aviation, metallurgy&so on.
it has become an indispensable structural material in various industries. its main features are as follows:
1. excellent mechanical properties. the mechanical strength of nylon is high&the toughness is good.
2. self moistening, good friction resistance. nylon has a good self - moistening, small friction coefficient, so it has a long service life as a transmission component.
3. excellent heat resistance. the thermal deformation temperature of high crystalline nylon, such as nylon 46, is very high. it can be used for a long period at 150. pa66 passes through
after glass fiber reinforced, the thermal deformation temperature is above 250 degrees centigrade.
pbt 2. esterification is continuously fed at low temperature/normal reaction temperature, easy to control, safe&reliable.
design scale
the single line capacity of industrial design is 3-40 tons per day, with an annual output of 1000 tons -15000 tons.
continuous synthesis
process desc ription
1. 1-4 butanediol mixing&conveying system
2. slurry preparation system
3. esterification reaction system
4. process tower system
5. precondensation reaction system
6. prepolycondensation filtration system
7. terminal condensation reaction system
8. end polycondensation filtration system
9. slice cutting&packing system
10. catalyst preparation&continuous addition control system
11. filter cleaning system
12. thf recovery system
13. heat medium system
14. computer integrated control system
characteristic
1. low temperature, low mole ratio, mild reaction
2. reliable stay time
3. maintain reasonable material consumption at different reaction stages
4. low consumption, energy saving&economy
5. good melt rheological property
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