tailieunhanh - Wheat Straw as a Paper Fiber Source

Two approaches were selected for the study, both of which were based on an initial hot water treatment: the “chemical” where bleached pulp is produced for printing and writing papers by hot water treatment and the following alkaline peroxide bleaching (Paper II–IV) and the “mechanical” where the unbleached material from the hot water treatment stage is mechanically refined (Paper II, V) to produce fibres for packaging grade papers. In the future, the straw fibre could be considered as a raw material for biocomposites. In both approaches, the idea is that the lower quality material produced, such as dissolved solids or. | Wheat Straw as a Paper Fiber Source NIST MEP Environmental Program ẴEPA L z . 0 4 A Q o TECHNOLOGY ASSISTANCE PARTNERSHIP ReTAP Wheat Straw as a Paper Fiber Source Prepared for Recycling Technology Assistance Partnership ReTAP A program of the Clean Washington Center June 1997 Prepared by The Clean Washington Center A Division of the Pacific Northwest Economic Region PNWER 2200 Alaskan Way Suite 460 Seattle Washington 98121 and Domtar Inc. Dr. W. T. Mckean R. S. Jacobs Paper Science and Engineering University of Washington Copyright 1997 by Clean Washington Center This recycled paper is recyclable. PA-97-1 Funding Acknowledgment This report was prepared by the Clean Washington Center with funding from the state of Washington and the . Commerce Department s National Institute of Standards and Technology NIST . The Clean Washington Center is the Managing Partner of the Recycling Technology Assistance Partnership ReTAP an affiliate of NIST s Manufacturing Extension Partnership MEP . Disclaimer ReTAP and the Clean Washington Center disclaim all warranties to this report including mechanics data contained within and all other aspects whether expressed or implied without limitation on warranties of merchantability fitness for a particular purpose functionality data integrity or accuracy of results. This report was designed for a wide range of commercial industrial and institutional facilities and a range of complexity and levels of data input. Carefully review the results of this report prior to using them as the basis for decisions or investments. Copyright This report is copyrighted by the Clean Washington Center. All rights reserved. Federal copyright laws prohibit reproduction in whole or in part in any printed mechanical electronic film or other distribution and storage media without the written consent of the Clean Washington Center. To write or call for permission Clean Washington Center 2200 Alaskan Way Suite 460 Seattle Washington 98121. 206 .