木質素的應用及其市場趨勢

什麼是木質素?

木質素(Lignin)是一種芳香族高聚物,亦是地球上第二豐富的有機聚合物[1],屬於可再生原料[2]。木質素(Lignin)是木質材料的一個組成部分,存在於木材和樹皮中,有助於植物防禦害蟲和病原體[3] ,其化學成分因植物物種而異。

木質素的市場價值

木質素(Lignin)可利用簡單且低成本方式將其提取,並已被證明可替代其他昂貴且不可再生的芳香族聚合物[2]。最為關鍵的是可作為石油酚類聚合物的替代品[4]。加之木質素(Lignin)部分衍生物符合永續化學、循環再利用的價值,使其近幾年在市場上重新被關注。

木質素的應用領域

木質素(Lignin)的應用領域極其廣泛,在分散劑、黏合劑、乳化劑、鑽井液、化妝品、鋰離子電池或生產聚氨酯的填料等眾多領域上,皆表現出亮眼的應用成果。

木質素的種類

木質素是一種不溶於水的長鏈異質聚合物,而自不同植物品種或不同產業之工業副產物所提取之木質素結構可能不同,因此種類相對豐富,包含硫酸鹽木質素、木質素磺酸鹽、蘇打木質素、以及牛皮紙木質素[5]…等等。

由於木質素化學性質大多疏水,使其起初並未得到廣泛的應用,故需透過改質以提高其利用度。如近幾年產出量提升的牛皮紙造紙工業副產物—牛皮紙木質素,若將其與1,4-BS合成,可改質為具有較長烷基鏈的磺丁基木質素 (Sulfobutylated lignin, SBL),可提升其親水性與分散性[7]。

 

除此之外,因木質素中的羥基很容易被氧化成羰基或轉化為醌型結構,致使木質素外觀呈深色而無法應用於淺色染料分散劑[4]。此時可透過將其減色來拓展應用範圍。根據研究指出:由於1,4-butane sultone (1,4-BS) 的酚羥基封閉,若將1,4-butane sultone (1,4-BS)與桉樹硫酸鹽木質素合成為淺色木質素磺酸鹽,便可同時達到磺化與優異的減色效果[6]。

 

在環境永續觀念越加被注重的全球趨勢下,木質素的市場前景相當被看好。若您有木質素改質需求,HOPAX作為1,4 BS(1,4-butane sultone)製造商與供應商,非常樂意為您提供高品質的服務與1,4-BS。

歡迎聯繫我們取得1,4-BS產品資訊。

了解更多關於 Hopax 1,4-BS

 

延伸閱讀: 1,4-BS(1,4-Butane Sultone) 應用於生物醫藥

參考資料:

[1] https://doi.org/10.1590/S0100-84042012000400003

[2] Lignin: A Renewable Raw Material
(https://doi.org/10.1016/B978-0-12-803581-8.11517-6)

[3] Lignin-based barrier restricts pathogens to the infection site and confers resistance in plants
https://doi.org/10.15252/embj.2019101948

[4] Basic understanding of the color distinction of lignin and the proper selection of lignin in color-depended utilizations
(https://doi.org/10.1016/j.ijbiomac.2020.01.105)

[5]Comprehensive approach on the structure, production, processing, and application of lignin

[6] Color reduction of sulfonated eucalyptus kraft lignin
(https://doi.org/10.1016/j.ijbiomac.2017.01.031)

[7] Using Sulfobutylated and Sulfomethylated Lignin as Dispersant for Kaolin Suspension
(https://doi.org/10.3390/polym12092046)

[8] Global lignin supply overview and kraft lignin potential as an alternative for petroleum-based polymers
(https://doi.org/10.1016/j.rser.2020.109768)

[9] Nano-Structured Lignin as Green Antioxidant and UV Shielding Ingredient for Sunscreen Applications
(https://doi.org/10.3390/antiox10020274)

[10] High-value utilization of kraft lignin: Color reduction and evaluation as sunscreen ingredient
(https://doi.org/10.1016/j.ijbiomac.2019.04.092)

[11] Kraft lignin as filler in PLA to improve ductility and thermal properties
(https://doi.org/10.1016/j.indcrop.2015.01.055)

[12] Highly Robust Lithium Ion Battery Anodes from Lignin: An Abundant, Renewable, and Low-Cost Material
(https://doi.org/10.1002/adfm.201301420)

[13] The Application of Ferric Chloride-Lignin Sulfonate as Shale Inhibitor in Water-Based Drilling Fluid
(https://doi.org/10.3390/molecules24234331)

[14] High-value utilization of eucalyptus kraft lignin: Preparation and characterization as efficient dye dispersant
(https://doi.org/10.1016/j.ijbiomac.2017.11.118)

發佈日期:2021.06.25