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Nylon Pa6 has chemical and physical properties very similar to nylon 66, but has a lower melting point and a wider processing temperature range. It has better impact and dissolution resistance than nylon 66 plastic, but is also more hygroscopic. Since many quality properties of plastic parts are affected by hygroscopicity, it is important to take this into account when designing products that use nylon 6. In order to improve the mechanical properties of nylon 66 materials, various modifiers are usually added. Glass fiber is the most common additive, and synthetic rubbers like EPDM and SBR are sometimes added to improve impact resistance. For products without additives, the shrinkage of nylon 6 plastic materials is between 1% and 1.5%. Adding glass fiber additives reduces shrinkage to 0.3% (but slightly higher perpendicular to the process). Shrinkage of molded components is primarily affected by the crystallinity and hygroscopicity of the material. Actual shrinkage is also a function of part design, wall thickness and other process parameters. Nylon 6 injection drying treatment Since nylon 6 is easy to absorb moisture, special attention should be paid to drying before processing. If the material is supplied in waterproof packaging, the container should be kept tightly closed. If the humidity is greater than 0.2%, it is recommended to dry in hot air above 80°C for 16 hours. If the material is exposed to air for more than 8 hours, vacuum drying at 105°C for more than 8 hours is recommended
Why choose us:
1. We were established in 1970 and have 50 years of experience in the PA 6 field.
2. 1600 employees
3. Our sales exceeded $400 million in 2020
4. We have ISO9000, ISO14001, IATF16949, REACH, ROHS, TFS certificates.
Specification:
|
NO |
ITEM |
NORM |
DATA |
|
1 |
VISCOSITY |
Q/321200WLB001—2019 |
M±0.04 |
|
2 |
MONOMER CONTENT(% ) |
Q/321200WLB001—2019 |
≤0.6 |
|
3 |
MOISTURE CONTENT(% ) |
Q/321200WLB001—2019 |
≤0.06 |
|
4 |
AMINE END GROUPS(Meg/kg) |
Q/321200WLB001—2019 |
40±3 |
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