最新刊期
期 0 ， 2020
- 摘要：As the shortage of raw materials needed to produce carbon fiber from fossil resources is becoming severe,it is imperative to develop carbon fibers from renewable wood resources,so as to reduce the production cost and expand its application.This paper systemically introduces the kinds,and processing methods of wood-derived rayon carbon fibers,summarizes the relevant research both in China and abroad in recent years,and presents some views for its future development.关键词：wood;carbon fiber;Lyocell fiber;lignin;woodbased resin
- 10
- |
- 349
- |
- 7
发布时间：2021-02-08 - 摘要：A computer color matching technique for wood dyeing has been developed by using the DC color matching and color information management systems produced by the Datacolor Company in Switzerland.The process includes measuring the color of wood samples,determining dyeset,preparing and measuring basic color samples,establishing a basic data pool,and calculating and correcting recipes.It provides quick calculation,high accuracy and is able to calculate the most economical dyeing scheme while ensuring the accuracy of the color match.关键词：wood dyeing;computer color matching;dyeset;recipe calculation;recipe correction
- 10
- |
- 277
- |
- 29
发布时间：2021-02-08 - 摘要：The main agent in Corn Starch adhesive was made with the aid of a reaction between corn starch and dibasic acid to form a liquid corn starch suspension and then stabilized by adding a soluble high molecular weight polymer.A corn starch emulsion was mixed with a corn starch-CaCO3-VAE emulsion under certain conditions to yield the main component A of API.关键词：corn starch;emulsion;main agent;bonding strength;plywood
- 13
- |
- 264
- |
- 10
发布时间：2021-02-08 - 摘要：Using a differential scanning calorimeter（DSC）,an experiment was conducted to determine how the curing process for UF resin could be influenced by adding NH4Cl as a curing agent and various ratios of cotton-stalk to poplar fiber.Results showed that as the addition of NH4Cl increased,up to a maximum of 1.5%（based on UF resin）,the curing rate of UF resin continued to increase.The ratio of cotton stalk to poplar had less effect on the initial curing process for UF resin.However,as the curing process went on,the decomposition of the methylene-ether linkages to methylene-bridges increased.When the ratio of cotton-stalk to poplar was 4∶0,the reaction rate was the highest;followed by 3∶1,0∶4,1∶3,and the lowest was 1∶1.关键词：cotton-stalk;Poplar;mixing ratio;DSC;UF resin;cure
- 8
- |
- 91
- |
- 12
发布时间：2021-02-08 - 摘要：Recycled polypropylene and wood powder were mixed together to make a composite.In this paper,the effects of the amount of wood powder,PP-g-MAH compatilizer and WBG crystalline phase modifier on the properties and morphologies of the composite were studied.The results indicated that PP-g-MAH compatilizer could improve the compatibility and properties of the composite.Suitable amount of wood powder was also helpful for the increase of composite tensile modulus,flexural property and heat distortion temperature, while it might decrease the impact strength and tensile elongation.The addition of WBG crystalline phase modifier improved the crystalline configuration and the plasticity of the composite.关键词：recycled polypropylene;wood powder;wood-plastic composites（WPC）
- 7
- |
- 317
- |
- 28
发布时间：2021-02-08 - 摘要：Acid dye and reactive dye were applied to veneer from Ussuri Poplar and birch respectively;NaOH solution was used as a pretreatment reagent.The pH and buffering capacity of the dyed wood were determined to compare with that of the plain wood.The results demonstrated that the effects of NaOH solution pretreatment and the dyeing process on pH and buffering capacity were similar for the two types of wood.The dyeing process resulted in a small increase of the pH of the wood,but a distinct decrease of the acid buffering capacity.The pretreatment with NaOH solution increased the pH of the wood significantly,and the acid buffering capacity of the wood also increased during the same process.The acid buffering capacity of the Ussuri Poplar decreased significantly by either dyeing directly or dyeing after pretreating with NaOH solution.The acid buffering capacity of birch veneer decreased by dyeing directly and increased by dyeing after pretreating with NaOH solution.关键词：dye;pH;buffering capacity;acid dye;reactive dye;veneer
- 10
- |
- 131
- |
- 7
发布时间：2021-02-08 - 摘要：The effect of mat moisture content on the surface and central layer temperature was investigated.Results showed when the mat moisture content was increased,the temperature in the central layer had a corresponding increase in the rate of rise,and the vaporizing stage was extended.However,the moisture content of the mat had little influence on the surface layer temperature.关键词：particleboard;mat moisture content;hot-pressing;Heat-conduction
- 11
- |
- 238
- |
- 15
发布时间：2021-02-08 - 摘要：The authors conducted an experiment to investigate factors that could influence the tensile strength of scarf-jointed poplar veneer.They made several kinds of scarf-joints differing in scarf length and angle.The behavior of those scarf-jointed veneers under a load was observed.The relation between veneer tensile strength and scarf length and angle,were then analyzed.关键词：plywood;Poplar;lengthwise joint of veneer;slip joint
- 7
- |
- 89
- |
- 7
发布时间：2021-02-08 - 摘要：The production management strategy for plywood companies in China are discussed in this paper.The principle of optimum system design and the decision-making theory are used to analyze the main problems in Chinese plywood companies.The critical issues that are involved are how to make reasonable grades and sorts of the products,a quality tracking and feedback system to ensure high quality management,and building a database for production management.Based on the analysis,the optimum management models of production mix are stated.Finally,two kinds of decision-making methods are recommended for helping plywood companies fulfill more effective management.关键词：plywood;manufacturing;management;optimum
- 10
- |
- 119
- |
- 1
发布时间：2021-02-08 - 摘要：The authors reviewed the development and present situation of the wheat/rice straw particleboard industry in China and analyzed the primary problems involving equipment and technologies used in this industry.They also made suggestions for making further developments in the straw board industry in China.关键词：wheat/rice straw;straw particleboard;equipment;technology;quality
- 14
- |
- 314
- |
- 31
发布时间：2021-02-08 - 摘要：Chitosan metal complex（CMC）,a potential environmentally-friendly wood preservative,is predicted to take the place of CCA in the future.Chitosan zinc complex（CZC）has been proven effective against brown rot fungi（Poria placenta）for masson pine,while Chitosan copper complex（CCC）has been proven effective against white rot fungi（Coriolous versicolor）for Chinese white poplar.The authors of this paper formulated a mixture of CZC and CCC to investigate its resistance against white rot fungi.The results showed that the mixture of the CCC and CZC had effective resistance to white rot fungi（Coriolous versicolor）for Chinese white poplar with an effect equivalent to that of CCA.关键词：chitosan metal complex（CMC）;mixture;Wood preservation
- 12
- |
- 198
- |
- 2
发布时间：2021-02-08 - 摘要：For a quick acting formaldehyde monitoring device,signal collection and processing is a critical step in the detection system.In order to achieve accurate detection datum and results,efficient and effective methods must be adopted to eliminate noise and interference.This paper emphasizes some digital-filtering algorithms in a microchip system,and also illustrates the program applied in this quick acting formaldehyde monitoring device.关键词：rapid monitoring of formaldehyde;random deviation;digital filter;algorithms
- 10
- |
- 126
- |
- 2
发布时间：2021-02-08 - 摘要：The authors researched how to apply Delphi to design wood doors based on CAD software and then developed a system for designing them.In the system,all function modules were established by the object-oriented idea.The design of wood doors could be computerized in two dimensions by using a parameter design method.关键词：wood door;CAD;parameter design;module
- 12
- |
- 95
- |
- 0
发布时间：2021-02-08 - 摘要：According to the characteristics of spruce lumber from Russia,a rapid drying technique for 40mm thick spruce lumber was developed in order to shorten the drying time and to increase production efficiency.Using the results from the drying process,related drying schedules were established.关键词：Russia;spruce;wood drying;drying schedules
- 18
- |
- 102
- |
- 3
发布时间：2021-02-08
- Address：Box 29，Research Institute of Wood Industry, No. 1, Dongxiaofu, Haidian District, Beijing Postal code：100091
- Tel：010-62889419 Email：mckx@caf.ac.cn
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
- Total Visits：16680
0