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(xù)送入乳液接枝反應(yīng)器與苯乙烯和丙烯腈單體混合物進(jìn)行接枝共聚反應(yīng)。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(nèi)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(xù)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(jì)。乳液法流程長，技術(shù)落后，發(fā)達(dá)國家已基本淘汰。

特點(diǎn)：

綜合性能較好,沖擊強(qiáng)度較高,化學(xué)穩(wěn)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.