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我们 need understanding PPA plastics which 方面?
我们 need understanding PPA plastics which 方面?
PPA poly 邻苯二甲酰 amine | technology 文章 | Daoqin plastics raw materials
本文 will detailed introductionpoly 邻苯二甲酰 amine （PPA）material property can features, application areas and processing process, is material selection and product design provide 参考.
detailed introduction
for/regarding plastics this industry 说, very more 人 印象 very has can can is non 常 普遍, for/regarding plastics in 我们 生 active in is can non 常普遍运 use. is also need 知道 就 is, for/regarding this plastics types type is non more, and also has non more product, 而我们 for/regarding this product is non has necessary understanding 一.
its in PPA plastics is must need understanding type product, for/regarding this type of plastics 说我们生 active in can can to comparison less, main/primary is 我们没 has method it. its this type of plastics property can also has features is non obvious, therefore in market upper is non 常受欢迎.
首先 it and market upper its it plastics versus comparison 说, it wet property can is comparison low, and can is can upper 名号. therefore this for/regarding it stability property 说就起 to non important function, but also in dimensions issues upper is non stability.
this in 一 精 fine industrial upper is can to relatively good application, but also chemical resistance can and hydrolysis resistant property can is non to and market 欢迎, positive is is this 两 方面, it can by application more more chemical industry industrial, and in production process in is non to 欢迎.
but also PPA plastics in 一定程 degree upper also can suitable for welding, therefore application scope is non 常广泛, and it material content is non high, that this is non important features, according to related data can understanding to it material content to separation 之五十 above.
[材 material basic parameters ]
| density | 1.15~1.25 g/cm³ |
| melting point | 295~315°C |
| heat deflection temperature (HDT) | 280~300°C |
| tensile strength | 80~120 MPa |
| flexural modulus | 3000~10000 MPa |
| 连续 use temperature degree | 150~190°C |
| water absorption | 0.5~1.5% |
| flame retardant rating | UL 94 V-0（部 separation grade ） |
core advantages
- high heat resistant property: melting point can 达295-315°C, heat deflection temperature (HDT) ultra- 280°C
- excellent force property can: tensile strength and rigid property excellent 于普通 nylon
- low water property: versus ratio PA6 and PA66, water absorption large reduce, dimensional stability more good
- good chemical resistance: for large more automotive liquid and chemical product has excellent 良 抵 resistant can force
- good dimensional stability: in temperature wet degree large ring in property can stability
- can resistant SMT回流焊: suitable for surface technology （SMT） process
application areas
SMT connectors, 开关, electrical appliances, LED支架, ring framework
发动 machine parts, cooling system, system, speed parts
泵体, 阀门, bearings maintain 架, gears
sports equipment, power tools housing/shell
injection molding processing process
- drying 处理: 120°C drying 8-12 small 时, moisture content ≤0.1%
- material temperature degree: 300~330°C
- mold temperature degree: 120~160°C
- injection pressure: 80~150 MPa
- injection speed degree: in speed
- precautions: PPA熔 melt temperature degree high, ensure injection molding machine tool 备足够 add hot can force
above inner 容由Daoqin plastics raw materials has companytechnology 部整理 editor | 如需 understanding more more PPA poly 邻苯二甲酰 amine material 信息, electrical inquiry
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