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how to can made as 出专业 PC plastics products
how to can made as 出专业 PC plastics products
PC polycarbonate (PC) | technology 文章 | Daoqin plastics raw materials
本文 will detailed introductionpolycarbonate (PC) （PC）material property can features, application areas and processing process, is material selection and product design provide 参考.
detailed introduction
in plastics industry inner, PC plastics property can is outer excellent, versus ratio other type product, is in property can upper, also is use scope/range upper PC plastics is can 代替, it advantages non obvious, transparent degree 搞, impact resistant can force strong/high, use scope/range 广, this 都决定 this future time will is PC plastics lower, that how to can made as 出专业 PC plastics 呢? need attention/notes which 方面呢?
首先, 我们 看看 Taiwan Formosa Chemicals PC plastics to has which value 我们购买 专业 features. transparent degree high, impact force strong/high, resistant temperature and wear resistant, can used for multiple combined, ratio industrial, use electrical appliances, day active and other and other. from PC process features upper 里 看, PC plastics is has defect, that is for temperature degree property large, obvious melting point, and water easy solvent understanding, easy cracking. need 想避免 this 情况, must need in made as process in 严格进行.
for this issues, need in made as process in especially need attention/notes: focus/key point is increase melt flow property, is improve/increase injection temperature degree, requirements mold runner and gate need for property design, currently gate short, coarse is more can decrease/reduce pressure loss 失, another also need improve/increase injection pressure.
need Taiwan Formosa Chemicals PC plastics cracking issues, main/primary is from reduce water amount 入手, plastics in molding front need drying 处理, water separation control in 0.02% below/following, another is need 采取一 保 temperature measures, anti wet, can decrease/reduce water separation content.
rear, need attention/notes products design, remove need positive positive molding process outer, also need for mold temperature degree, products rear 续处理都 need good, can relatively large degree upper remove internal force, decrease/reduce cracking phenomenon.
[材 material basic parameters ]
| density | 1.20 g/cm³ |
| 玻璃化转变 temperature degree | 147°C |
| heat deflection temperature (HDT) | 130~140°C |
| tensile strength | 55~75 MPa |
| notched impact strength | 600~850 J/m |
| light transmittance | 88~91% |
| flame retardant rating | UL 94 V-2 |
| molding shrinkage | 0.5~0.7% |
core advantages
- high transparency degree: light transmittance can 达89% above, is excellent transparent engineering material
- 卓越 impact resistant property: notched impact strength high 达600-850 J/m, is 普通玻璃 250倍
- excellent dimensional stability: molding shrinkage low （0.5-0.7%）, products dimensions 精确
- wide use temperature degree scope/range: can in -60°C至120°C scope/range inner long use
- excellent electrical insulation property can: volume resistivity high, suitable for electronics electrical field/area
- good flame retardant property: tool has self-extinguishing property, can UL 94 V-2 grade
application areas
electrical outer housing/shell, machine outer housing/shell, LED lamp covers, light 盘, connectors, 开关
lamp covers, table/sheet sheet/plate, 保险杠, 天窗, 车窗玻璃
cationic light sheet/plate, light sheet/plate, 隔音屏障, safety anti 护窗
liquid device, device 械, bottle, 婴儿保育箱
眼镜 sheet/slice, versus machine 镜头, micro sheet/slice, light
injection molding processing process
- drying 处理: 120°C drying 4-6 small 时, moisture content ≤0.02%
- material temperature degree: 260~310°C（ according to molecular weight adjustment ）
- mold temperature degree: 80~120°C（ high mold temperature can obtain more good surface quality ）
- injection pressure: 80~140 MPa
- injection speed degree: in and other slow, 避免喷射 and scorching/burn marks
- precautions: PC for 缺口敏感, products design 应避免尖角
above inner 容由Daoqin plastics raw materials has companytechnology 部整理 editor | 如需 understanding more more PC polycarbonate (PC) material 信息, electrical inquiry
联系 electrical 话: 19279864570（ micro 信同号）
