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nylon use color agent tool performance requirements
（1） heat resistant resistant property
迄今 already has many has machine material, machine material and solvent agent material can used for large separation thermoplastic property engineering plastics color.
resin processing temperature degree and for color agent requirements:
resin |
processing temperature degree ( ℃) |
for powder agent requirements |
low density polyethylene (PE) |
150 - 220 |
坚牢 degree excellent 良, 不迁移 |
high density polyethylene (PE) |
160 - 230 |
resistant heat stabilized property high, 不迁移 |
polyvinyl chloride (PVC) |
180 - 250 |
dispersion property good 坚牢, resistant acid |
polypropylene (PP) |
230 - 280 |
heat resistant, dispersion property good |
polystyrene (PS) |
180 - 240 |
坚牢, solvent understanding property good |
ABS |
230 - 310 |
heat resistant, dispersion property good |
polycarbonate (PC) |
150 - 200 |
heat resistant, dispersion property good, water |
polyurethane ester |
210 - 270 |
lightfast, resistant acid, resistant also 原 |
polymethyl methacrylate (PMMA) |
200 - 230 |
坚牢, heat resistant, 不迁移 |
polyamide (PA) |
270 - 290 |
heat resistant, water, dispersion property good |
polyester |
270 - 290 |
heat resistant, 不迁移不呈 acid alkali property |
from table/sheet in can 看出, polyamide (PA) processing temperature degree very high, use color agent need has very high heat resistant property, plastics use has machine material 而言, remove for its heat stabilized property has requirements outer, also need has relatively good resistant degree. less has machine material for polyamide (PA) melt material property can generate obvious negative function, therefore used for polyamide (PA) color has machine material has 一定限 made.
（2） chemical stability property
color agent and resin 两者不应发生 chemical reaction, promote resin separation understanding. for/regarding high active property resin polyamide (PA) resin (PA), its melt 状态显示 also property, easy make color agent color, therefore, has less color agent can selection.
（3） resistant property
color agent main/primary has types type type:
solvent agent 抽出, in water and has machine solvent agent in color;
接触迁移, formed versus material 体污染;
surface 喷霜, in add hot 时, color agent in polymer in solvent understanding degree relatively large, normal temperature lower, color agent solvent understanding degree relatively small.
generally 说, machine material in polymer in dispersion is non versus, generate phenomenon; has machine material in polymer and other has machine material in has different degree solvent understanding, comparison easy 发生迁移.
（4） color force
color force large small is to target/goal color color agent use amount. generally 说, color force color agent decrease small increase. has machine material color force ratio machine material high, color color material and white material use 时, color force can to significantly improve/increase.
（5） dispersion property
color agent in polymer in has micro small pellets uniform dispersion, can has good color 效果. material very more poly pellets, must use high force large poly 集体, formed small poly 体, from to requirements.
