Since the advent of silicone elastomer in the 1940s, its applications have been continuously developed by engineers to meet the various needs of human development, from traditional keyboard buttons, medical catheters, kitchen utensils, to the recently popular mascots"Bing Tuntun" .Silicone elastomer connects closely with peoples's life. During its production, various functional additives need to be added to achieve its designed performance. Among them, one of the additives called Filler treatment agents plays an important role in maintaining the excellent physical and chemical properties of silicone elastomer especially the excellent processability after long-term storage.
名詞解讀:結(jié)構(gòu)化
硅橡膠在存放過程中,由于白炭黑表面羥基相互作用形成團(tuán)聚,或者與基礎(chǔ)聚合物相互作用形成立體網(wǎng)絡(luò)結(jié)構(gòu),從而使膠料產(chǎn)生凝膠,粘度上升,力學(xué)性能下降,甚至失去加工性能的現(xiàn)象統(tǒng)稱為“結(jié)構(gòu)化”。
名詞解讀:結(jié)構(gòu)控制劑
為解決這種影響硅橡膠使用壽命和性能的“結(jié)構(gòu)化”問題,對白炭黑表面處理,減少填料表面活性羥基的處理劑稱為結(jié)構(gòu)控制劑。常見的結(jié)構(gòu)控制劑有羥基硅油、烷氧基硅烷、硅氮烷等。羥基硅油和烷氧基類結(jié)構(gòu)控制劑對低比表面積的白炭黑具有較好的處理效果和成本優(yōu)勢,但也存在著體系穩(wěn)定性差,膠料易發(fā)粘,用量大等缺陷。具有高反應(yīng)活性的小分子硅氮烷在高端應(yīng)用中具有更突出的性能優(yōu)勢,接下來小編為大家介紹新亞強(qiáng)在粉料處理領(lǐng)域深受國內(nèi)外客戶好評的兩款產(chǎn)品XY-602 和 XY-803。
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