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material features and selection standards
generally 说, machine material ratio has machine material for light, temperature degree, chemical material and large gas effect/influence more stability, 无 machine material also tool has production cost relatively low advantages. has machine material production usually need more stage/phase combined formed and raw materials, this factors 都导致 has machine material market price versus for relatively high. however, and machine material versus ratio, has machine material usually color more concentrated, therefore for various application more tool force. and 染 material 一样, and outer 线辐射 or large gas effect/influence versus function 时, has machine material upper relatively low stability property usually 会导致 it time 推移而 degradation. application has machine color agent use 紫 outer absorption agent is long its in application in use lifespan has methods.
针 for application selection material can below/following several standards: 颜 material selection standards and for application very important 特定颜 material features
| 颜 material application standards | 特定颜 material features |
| color standards | color, color strong/high degree （衡 amount material other material color can force ）, increase can force （衡 amount white material increase other material can force ）, cover/cap force （衡 amount material surface can force ） |
| chemical and material standards | chemical formed separation, 粒径, distribution, density, water separation and salt content, water solvent property and acid solvent property formed separation content, hardness |
| stability property standards | for light （ especially is outer 线）, hot, wet, chemical product stability property |
| in bonding agent and other application in is | dispersion is, and bonding agent separation versus function |
color system by is material pellets in semi transparent combined in dispersion 体, combined most is liquid 体, and in bonding agent hard rear excellent is solid 体. in large more 数情况 lower, formed thick degree is micron 至数百 micron film, paint 层. in certain lower, in product formulation in, application using/adopting liquid dispersion 体 形式. light in and dispersion versus function 时会发生反射, and absorption, from formed color 介质 视觉 appearance. color system optical property can main/primary below/following factors 决定:
●颜 material features, 如粒径, distribution, pellets 形状, rate, dispersion 射系数 and absorption and other.
● application 介质（ bonding agent ） features, 例如折射 rate and absorption rate.
● color system in material concentrated degree.
粒径（直径）, distribution and and other parameters is material especially important features. pellets usually by is material or powder most small mono mono 位. pellets structure, large small and can in very large degree upper 变化. material in 出现 典 type pellets mono is grade pellets, poly and poly 集体:
●初 grade pellets （ mono pellets ）: use formed methods （ optical micro 镜, electronics micro 镜）时, can is mono mono pellets; from application degree 看, grade pellets is material most mono 元.
●团 poly 体: grade pellets and / or poly 集体 集 combined 体, its in pellets between usually through and 边缘发生; poly usually easy by machine function bad 并转化 is grade pellets or more small mono 元.
● poly 集体: grade pellets poly 集体, pellets between usually is through surface 发生; this pellets 彼此牢牢 viscous in 一起, very difficult or can can versus separation 离; it 们往往 in application technology 方面构 formed issues.
