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第六百四十九章 物理脱色法的局限(1 / 2)

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活性炭的吸附能力实在太变态,一碗黑乎乎的墨水,丢上三两块活性炭,眨眼,墨水就变澹下去了。

关羽面前放了一只碗,关羽一手拿笔往碗里滴墨,一手抓了一把炭块,时不时往碗里滴几滴墨,再丢一块炭进去,看着炭迅速把墨色吸干净,关羽玩的乐此不彼,啧啧称奇。

活性炭成功制备乃是重大突破,有了活性炭就意味着有了超强的脱色剂,李孟羲迫不及待的想看看用活性炭来脱色,到底纸浆能白到何种程度。

一番忙碌,新的一锅纸浆开煮,至天色将晚之时,停火开锅,煮浆结束。

待纸浆稍冷,李孟羲立刻将用麻布包好的活性炭包丢入到了锅中。

一段时间后,脱色结束,活性炭用去了几十包,估计总共有用了数斤之多。

李孟羲和关羽两人凑到锅边看,一眼就看的出来,锅里的纸浆前所未有澄澈透明。

看到纸浆清澈如此,李孟羲眼睛就是一亮,抬头看向关羽,关羽眼睛也是亮的。

立刻,不用任何交流,李孟羲和关羽立刻忙碌起来。

关羽去拿抄浆的纱网,李孟羲去拿盛浆勺子,工具找来,两人默契配合着,捞浆抄网一气呵成。

很快,纸浆经火烘烤一阵之后迅速干燥,关羽揭下了这张新纸。

“让我看看,让我看看!”李孟羲跳脚要先看。

关羽笑着将纸递给了李孟羲。

纸拿到手中,从手感上来说,与之前所造的纸并无太大区别,但这张新纸整张纸没有一点杂色,通体纯净,色泽净白,看起来漂亮无比。

李孟羲认为的最好的纸,应该是那种白的跟墙腻子一样,白的能反光的纸,白的一点其他颜色都没有。

这次的纸浆用了活性炭来吸附色素,纸果然白了不少,可仔细看,李孟羲发现纸虽然更白了,虽然没有杂色了,虽然通体一色协调的很,但纸的颜色还有些偏灰黄的颜色,这应该是麻纤维本来的颜色。

活性炭可以吸附掉胶质等其他杂质中的色素,而麻纤维中本身也有色素,纤维中的色素难以祛除掉。

这让李孟羲又不满意了,他挠头,纤维素中的色素又该怎么去除,活性炭是物理除色手段,活性炭几乎是最强的物理除色手段了。

既然物理手段除不了纤维素中的颜色,那化学手段如何,可化学手段除色,该用什么化学手段,又是什么原理,又该用到怎样的化学药品,李孟羲一概不知。

再如之前一般推理一下,造纸术乃低级工业,既然是低级工业,那就用不到太复杂的化学技术,也用不到太复杂的化学药品,既然用不到太复杂的化学药品,那说明低级化学药品就够了。

而低级化学药品,不过酸碱盐,油脂,酒精,之类。

可之前测试时,酸也用了,碱也用了,酸用的醋酸代替,碱用的草木灰溶液代替,酸碱都用了,然而纤维素中色素并未能除去。

这说明,化学中能除色的药品,不是简单的酸或碱,而是其他的。

会是什么……

关羽见李孟羲拿着纸看了良久,见李孟羲眉头渐渐皱了起来,关羽调侃到,“羲儿,这回的纸,总够好了吧?”

回过神来,李孟羲瞅了一眼手中这张严格意义来讲已经算是白纸的纸,他皱眉道,“好虽好,不算最好。还能更好。”

果然,又是如此。

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