Synthesis and properties of phenolic modified enzymatic hydrolysis Lignin-epoxy Resin/epoxy resin Composites

fang Wang


With the enzymatic hydrolysis lignin (EHL) as the raw materials , And the phenol-sulfuric acid method

Was used to modify EHL. Under alkaline conditions,lignin-epoxy resin (L-EP) was Synthesized by phenolated lignin (PL) reacted with Epichlorohydrin (ECH). The structure of EHL and its modification and the synthetic resin were by FT-ir. The effects of factor reaction conditions on the process of phenolation were dis cussed.­The results indicate that the effect of modification s the best under the condition of 3. 0 h, 95 C and 4 ml/g h2so4 (2 MOL/L), and thecontent of phenolic hydroxyl group reaches 4 632 , which increases by 42% compared with EHL. The effects of different L-EP adding amount on the mechanical properties and thermal properties of L-</b3 1>ep/epoxy E-51 Composites were investigated. The results show this tensile strength of L-ep/epoxy E-51 Composites is the best when amount of L-EP I s 5 %,which increases by % The compared with the pure E-51 epoxy resin. withthe Increase Intheamountofl-ep,thermal stability of L- ep/e-51 composites s enhanced. The Non-sothermal method is used to analyze the curing kinetics of epoxy E-51 and L-ep/e-51 compos</b32 >ites. The results reveal that L-EP has a certain effect on the curing of L-ep/epoxy resin Composites.</b20 >


enzymatichydrolysislignin ; Epoxy Resin ; Composites ; mechanicalproperties ; thermalproperties

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Auvergne R , caill0l s,david g,et al. biobased thermosetting epoxy : Present and Future[j]. Chemical reviews, 2014, 114 (2): 1o82-1115.

Gao Kun , Shan , Sun Baogang , , and so on . Hot and humid aging on fiberglass / Epoxy Effects of composite per-formance []. Journal of Composite Materials , 2016,6:1147-1152.

GA0 K,shi H Q,sun B g,et al. Effects of Hydro-ther mal aging on properties of Glass Fiber/epoxy composites[j].¬

Acta materiae compositae sinica , 2016 , (6): 1147-1152 (inchinese)

as ADA C, BASNET S, 0TSUKA M , et al. Epoxy resin synthesis using low molecular weight lignin separated from various lignocellulosic [J]. International Journal of biological macromolecules,2015 ,74:413-419.

laurichesse S,aver0us L. Chemical modification of lignins b20>: towards BioBased polymers[j]. Progress in polymerscience,2014, 7:1266-1290.

Liu Wenjun , Meng Lingjun , Lu Ling , , and so on . alkali lignin hydroxyl methylation modified []. East North Forestry University journal ,2013, 6: 130-134.

LIU W J , MENG L J , LU Q , et al. Soda ligninhydroxym-ethylation [J]. Journal of Northeast forestry University, 2013, 41 (6 ): 130-134 (Inchinese).

Yang L, WANG X F, CUI Y , et al. Modification of renewable Resources-lignin-by three chemical methods and its

applications to polyurethane foams [J ] polymers for Advanced Technologies , 2014 , (): 1089-1098.

SUN y s,qiu X q,liu y Q. Chemical reactivity of alkali lignin modified with laccase[j]. Biomass & Bioenergy,2013,

: 198-204.

PAN H,sun G,ZIIA0 T. Synthesis and characterization of aminated lignin [J]. International Journal of biological macromolecules,2013 , 2 (): 221-226.

P0dschun J, saake B, Lehnen R reactivity enhancement of organosolv lignin by Phenolation for im-proved bio-based]. European polymer Journal, 2015, : 1-11.

MA Y J , ZHA0 X « CHEN X, et al. An approach to improve the application of acid-insoluble lignin from Rice hull in PHE-

Nol-formaldehyde Resin[j]. Colloids and Surfaces A-physico- chemical and Engineering Aspects, /b11> on, [* * []] 377 (1-3 ):


al0ns0 M V , 0LIET M , R0driguez F,et al. moditi-cation of ammonium lignosulfonate by Phenolation for use in phenolic resins [J]. Bioresource Technology, on $ , 9:


Yang S , WEN J L , YUAN T Q , et al. characterization and phenolation of Biorefinery technical lignins for lignin-

Phenol-formaldehyde Resin adhesive Synthesis [J ]. RSC advances, 2014, 4 (): 57996-58004 .

P0dschun j,stucher a,saake b,et al. Structure function Relationshipsin the phenolation of Lignins from b11>

different sources [J]. ACS Sustainable Chemistry & engi-neering, 2015,3 (Ten): 2526-2532.

Sail , Huangpingping , Guo Minghui . Study on the method of improving lignin phenol hydroxyl content into show []. Journal of Southwestern Forestry University , 2014, 6 (): 98-103.

ZHANG F,huang p p, GU0 M. Progress in increasing phenolic hydroxyl content of lignin[j]. Journal of Southwest for-estry University, 2014, (6): 98-103 (in Chinese ) .

Li Wenting . Ionic liquids [Bmim]cl Synthesis of lignin lignin-based epoxy resins in and cured [D]. Huainan : Anhui Polytechnic University , 2015.

LI W-Synthesis of lignin-based epoxy resin in ionic liquid [BMIM]CL and Characterization[d]. Huainan: Anhui Uni-versity of Science and Technology , 2015 (in Chinese).

Raiyurong , Zhang Zeng , yellow thousand strong , , and so on . FC method for determination of phenolic hy-droxyl in lignin and paper plasma base []. China paper Journal ,2007, 1: 54-58.

LAI Y r,zhang Z,huang G Q,et Al Determination the content of phenolic hydroxyl groups in lignin and pulp wit H Fc-method[j]. Transactions of Pulp and Paper, 2007, 22 (1 ): 54-58 (Inchinese).

Zhao Jianbing , Wang Shibing . optimization of synthesis conditions for lignin epoxy resins []. Chemical

and Bioengineering , 2015, 2: 63-66.

zha0j B,wang B. 0ptimization of Synthenic Condi¬tions of lignin epoxy resin[j]. Chemistryand Bioengineering,

, 2: 63-66 (Inchinese).

China National Standardization Administration Committee . Determination of tensile properties of plastics : GB/t 1040- 2006[s]. Beijing : China Standard Publishing house , 2006. Standardization Administration The "for" ten-sile properties of plastics : GB/ T 1040-2006[s]. Beijing:standards Press of china,2006 (in Chinese).

Ferd0sian f,zhang Y S,yuan Z s,et al. Curing Kinetics and mechanical properties of bio-based epoxy composites Comprising lignin-bised epoxy resins [J]. European,2016, polymerjournal : 153-165.

XIA0 X, LU S,qi b,et al. Enhancing thermal and mechanical properties of epoxy resins by addition of a hy-per- b30>branched aromatic polyamide grown on microcrystalline cellu lose fibers[j].¬ Rscadvances,2014, 4 (+) : 14928-14935.

CHEN M Q , LIU S M , I F , et al. The study on curing kinetics of lignin-based epoxy resin system using Non-isother- MALDSC method[j]. Advanced materials, 2013, 788:223-227.

Li Xiaoying , Chai Chunpeng , Li Changfeng , , and so on . non-isothermal DSC Research Adding class liquid Crystal pbpcs Curing Kinetics of modified epoxy resins [].Journal of Polymers ,

(9) : 1190-1196.

lixj , CHAICP , LICF, et¬al. Non-isothermal Cure kinet ICS to mesogen-jacketed liquid crystal polymer pbpcs Modi1>fied Epoxy resin[j]. Acta Polymer sinica, 2013 (9 ):11901196 (inchinese)

Li Heng , Wang Dehai , Chan Xiaqing . non-isothermal DSC Study of epoxy resin system solid

Kinetics []. Solid rocket technology , 2013, (2): 266-270.

LI H,wang D H , QIAN X Q. Curing Kinetics of epoxy resin by non-isothermal DSC method [J]. Journal of Solid

rocket Technology , 2013 , (2) : 266-270 (in Chinese).

DOI: http://dx.doi.org/10.1828/cmr.v6i1.202


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