接枝聚合物的合成：聚丁二烯與苯乙烯、丙烯腈接枝是ABS生產(chǎn)工藝中的核心單元。粒徑呈雙峰分布的聚丁二烯膠乳連續送入乳液接枝反應器與苯乙烯和丙烯腈單體混合物進(jìn)行接枝共聚反應。單體與聚丁二烯之比提高則接枝聚合物和SAN共聚物的分子量及接枝度增加，內部接枝率一般隨橡膠粒徑的增加和橡膠交聯(lián)密度的降低而增加。在粒徑和橡膠交聯(lián)密度恒定時(shí)接枝度和接枝密度是決定ABS產(chǎn)品性能的因素。

SAN共聚物的合成：苯乙烯與丙烯晴共聚物合成方法有三種：乳液法、懸浮法和本體法。本體法采用熱引發(fā)、連續聚合，產(chǎn)品純凈、質(zhì)量較高，污染少，在SAN合成中正取代懸浮法，尤其在大型ABS生產(chǎn)裝置上。懸浮法采用引發(fā)劑，間歇聚合、產(chǎn)品不如本體法純凈，產(chǎn)生的廢水對環(huán)境有污染，但工藝簡(jiǎn)單，流程短，投資少，聚合熱易撒出，對中小型裝置而言懸浮法較為經(jīng)濟。乳液法流程長(cháng)，技術(shù)落后，發(fā)達國家已基本淘汰。

特點(diǎn)：

綜合性能較好,沖擊強度較高,化學(xué)穩定性,電性能良好.

Our polycarbonate/acrylonitrile butadiene styrene materials (PC/ABS) combine the outstanding pureness and excellent processability of Trinseo's mass polymerization ABS resins with the superior impact and heat resistance of PC resins.

Trinseo's product families PULSE? PC/ABS Resins and EMERGE? Advanced Resins provide an industry-leading balance of attributes such as toughness (also at low temperatures), heat, ignition, and impact resistance that enable applications re enhanced physical properties and high aesthetic properties.

Our PC/ABS resins are available both pre-colored and as part of a self-coloring system. In close collaboration with our customers, the expert team in the Trinseo Coloring Group develops and implements solutions for all customer-specific coloring needs, whether for pre-colored material or to support the production of color masterbatches to supply together with our natural materials.

Worldwide, customers can benefit from supply security as a result of our compounding assets in each region (EU, NA, China). We offer our high levels of expertise and technical support along with our products around the world.

PC/ABS grades from our EMERGE? Advanced Resins portfolio exhibit a special range of materials optimized to meet the complex needs of the consumer electronics, medical, electrical and lighting industries.