ASA是由苯乙烯、ing和压克力橡胶共聚合而成。在技术上而言，ASA不仅维持了ABS之主要特性，并结合压克力耐候之优点，使得产品之应用上可延伸至户外之用途。ASA分为：一般级、押出级和耐热

ASA是由苯乙烯、ing和压克力橡胶共聚合而成。在技术上而言，ASA不仅维持了ABS之主要特性，并结合压克力耐候之优点，使得产品之应用上可延伸至户外之用

ASA的优点

1、ASA具有良好的机械物理性能

ASA和ABS的结构相似，由ing和丁二烯橡胶组成，其保留了ABS作为工程塑料所具有的机械物理性能

2、ASA具有很强的耐候性

高分子聚合物中若含有双键，则双键*被能量强度较大的太阳光中的紫外线所打开，由此造成高分子聚合物的耐老化性能下降，而ASA正是用不含不饱和双键的丙烯酸橡胶替代了ABS中含有不饱和双键的丁二烯橡胶，因此，不但可抵抗紫外线照射引起的降解、老化、褪色，同时对大气中的氧化加工过程中的高温引起的分解或变色有了坚强**，由此*大的提升了材料的**与耐侯性能。根据测试结果，ASA的**性能是ABS的10倍以上。

3、ASA具有比较好的耐高温性能

4、ASA是一种防静电材料，能使表面少积灰尘

ASA的应用领域

汽车领域：ASA在持续长时间的风蚀后，也不会像经特殊处理的耐老化的ABS那样渐成灰色（由于风蚀或水流造成表面许多显微裂缝和气蚀）。ASA的典型应用是外视镜、散热器格栅、尾部档板、灯罩等承受日晒和雨淋、强风吹等恶劣条件下的外部部件。目前，*是逐步延伸到了摩托车面板、野营汽车、小型船壳、冲浪板等领域。

园艺领域：ASA被证明特别适用于园艺灌溉设备以及草坪切割机外壳等。

ASA is made by copolymerization of styrene, ing and acrylic rubber. Technically speaking, Asa not only maintains the main properties of ABS, but also combines the advantages of acrylic weathering resistance, making the application of the product can be extended to outdoor use. ASA is divided into: general grade, extrusion grade and heat-resistant ASA is made of styrene, ing and acrylic rubber copolymerization. Technically speaking, Asa not only maintains the main properties of ABS, but also combines the advantages of acrylic weathering resistance, 1. ASA has good mechanical and physical properties. The structure of ASA is similar to that of ABS. It is composed of ing and butadiene rubber, it retains the mechanical and physical properties of ABS as engineering plastics2. ASA has strong weatherability if there is a double bond in the polymer, the double bond * will be opened by the ultraviolet ray in the sunlight with high energy intensity, thus the anti-aging property of the polymer will decrease, aSA replaces butadiene rubber with unsaturated double bond in ABS with acrylic rubber without unsaturated double bond, so it can resist degradation, aging and discoloration caused by UV irradiation, at the same time, the oxidation process in the atmosphere caused by high temperature decomposition or discoloration has a strong * * , thus greatly improve the material * * and weather resistance. According to the test results, the performance of ASA is more than 10 times that of ABS. ASA is an antistatic material, which can reduce the dust on the surface. The application of ASA is in the field of automobile, nor does it fade to grey (many microscopic cracks and cavitation on the surface due to wind or water flow) like specially treated anti-aging ABS. The typical applications of ASA are exterior mirrors, radiator grille, rear baffle, lampshade and other external components under harsh conditions such as exposure to the sun and rain, strong wind blowing. At present, * is gradually extended to motorcycle panels, camping cars, small hull, surfboard and other fields. In the field of horticulture: ASA is proven to be particularly suitable for gardening irrigation e and lawn mower enclosures