scholarly journals Lignin modifications and perspectives towards applications of phenolic foams: A Review

BioResources ◽  
2018 ◽  
Vol 13 (4) ◽  
pp. 9158-9179
Author(s):  
Carolina Londoño-Zuluaga ◽  
Jing Du ◽  
Hou-Min Chang ◽  
Hasan Jameel ◽  
Ronalds Gonzalez
Keyword(s):  
Thermal Properties ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Synthetic Polymers ◽  
Pulp And Paper ◽  
The State ◽  
Mechanical And Thermal Properties ◽  
Polymeric Foams ◽  
Natural Polymer ◽  
Renewable Feedstocks

Lignin is a complex natural polymer and by-product of the pulp and paper industry. Currently, the increasing interest in bio-based products has motivated the search for alternative renewable feedstocks that can sustainably replace synthetic polymers. Because of the phenolic functionalities of lignin, this natural polymer has attracted interest for application in biomaterials. Among various products, polymeric foams stand out as a potential product in which lignin incorporation has resulted in improved mechanical and thermal properties. This paper reviews the state of lignin foam development, with emphasis placed on phenol-lignin types.

scholarly journals PROSPECTS OF PINUS AND EUCALYPTUS PRODUCING COMPANIES IN THE STATE OF PARANÁ

FLORESTA ◽  
2021 ◽  
Vol 51 (2) ◽  
pp. 303
Author(s):  
Ailson Augusto Loper ◽  
Vitor Afonso Hoeflich ◽  
João Carlos Garzel L. da Silva ◽  
Joésio Deoclécio Pierin Siqueira ◽  
Alexandre Nascimento de Almeida
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
The State ◽  
Raw Material ◽  
New Employees ◽  
Forest Production ◽  
E Mail ◽  
Legal Entities

The objective of this work was to analyze the prospects for the next five years in relation to planted area, forest production, investment intention and hiring of employees. The research had as its area of coverage the state of Paraná and as a source of data, companies (legal entities) producers of forest raw material of planted origin that operate in the state. The contacts with the companies were obtained from the Paraná Association of Forest Based Companies (APRE), the Organization of Cooperatives of the State of Paraná (OCEPAR), SINPACEL and ABIMCI. The questionnaires were sent by e-mail to the entire contact base, aiming at the census. Thus, the resulting sample is made up of 41 companies, segmented between integrated and non-integrated companies, which corresponds to 17 and 24 companies. The evaluation answers were carried out. For the identification of the companies’ prospects, it was requested to fill in a table indicating a percentage (0 to 100%) that reflects the projections for the next 5 years. The prospects related to the planted area, production and investments were positive, however, the panoramas related to hiring new employees by the pulp and paper industry (integrated companies) presents a prospect of reduction. The Timos are the group that has the most positive expectations, being responsible for the expansion of the planted area, volume produced, investment and hiring of employees.

Co-cooking nonwoods with hardwoods

TAPPI Journal ◽  
2014 ◽  
Vol 13 (6) ◽  
pp. 19-24
Author(s):  
TROY RUNGE ◽  
CHUNHUI ZHANG
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Strength Properties ◽  
Agricultural Residues ◽  
Kraft Pulping ◽  
Pulp And Paper ◽  
Strength Increase ◽  
Xylan Content

Agricultural residues and energy crops are promising resources that can be utilized in the pulp and paper industry. This study examines the potential of co-cooking nonwood materials with hardwoods as means to incorporate nonwood material into a paper furnish. Specifically, miscanthus, switchgrass, and corn stover were substituted for poplar hardwood chips in the amounts of 10 wt %, 20 wt %, and 30 wt %, and the blends were subjected to kraft pulping experiments. The pulps were then bleached with an OD(EP)D sequence and then refined and formed into handsheets to characterize their physical properties. Surprisingly, all three co-cooked pulps showed improved strength properties (up to 35%). Sugar measurement of the pulps by high-performance liquid chromatography suggested that the strength increase correlated with enriched xylan content.

Application of VSEP for Pulp and Paper Industry.

1999 ◽  
Vol 53 (10) ◽  
pp. 1334-1338 ◽  
Author(s):  
Yoshiya Kuide ◽  
Kazuyoshi Yamamoto
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper
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