8 c& q+ c. ]; F*机械性能为干态条件测得。8 c0 z4 |3 e. a. A$ t 化学和物理特性: ! b% B) n2 O/ J7 O9 c! T
PA66在聚酰胺材料中有较高的熔点。它是一种半晶体-晶体材料。PA66在较高温度也能保持较强的强度和刚度。PA66在成型后仍然具有吸湿性，其程度主要取决于材料的组成、壁厚以及环境条件。在产品设计时，一定要考虑吸湿性对几何稳定性的影响。 # N- l \( H5 d为了提高PA66的机械特性，经常加入各种各样的改性剂。玻璃就是最常见的添加剂，有时为了提高抗冲击性还加入合成橡胶，如EPDM和SBR等。 2 U, I+ b T. N |- @$ ?2 P/ iPA66的粘性较低，因此流动性很好（但不如PA6）。这个性质可以用来加工很薄的元件。它的粘度对温度变化很敏感。PA66的收缩率在1%~2%之间，加入玻璃纤维添加剂可以将收缩率降低到0.2%~1% 。收缩率在流程方向和与流程方向相垂直方向上的相异是较大的。 5 Z ?9 v) V) _0 Z4 B: oPA66对许多溶剂具有抗溶性，但对酸和其它一些氯化剂的抵抗力较弱 。9 k5 F2 {8 z$ b3 l
附件为杜邦公司PA66的资料！/ v3 D+ n- }* i+ f5 C& c6 j' w
PA66, mineral reinforced.! V, D0 f2 w; b/ d. W( b# T
Identification: ISO 1043: PA66-MD40 P2 Y" }' ? c6 y% }5 LCommon features of Minlon® nylon resin include mechanical and physical properties such as high mechanical strength, excellent balance of stiffness /toughness, high temperature performance, chemical resistance, paintability, dimensional stability and low warpage. Grades with improved electrical and flammability properties are available within the Zytel® nylon resin product line. In addition, Minlon® nylon resin is available in different modified and reinforced grades to create a wide range of products with tailored properties for specific processes and end-uses. The melt stability of Minlon® nylon resin normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-31kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed. Minlon® nylon resin typically is used in demanding applications in the automotive, electrical, electronic, domestic appliances and construction industries. # i$ n! @# g; x/ F5 vMinlon® 10B140 is a 40% mineral reinforced polyamide 66 for injection molding. It has a very low warpage.7 B7 L* D# D* t5 t, W4 p. q
Typical applications: Small mechanical components, instrument housings and handles. / @& ?: @& q2 E& W C1 J E ! n4 Z( Z5 M1 h5 ~[ 本帖最后由 richardlian 于 2008-9-22 12:43 编辑 ]
发表于 2008-9-11 20:02:57
楼主