Poplar Wood Veneer Stain Retardant Study the Integration Process

2014 ◽  
Vol 548-549 ◽  
pp. 233-236
Author(s):  
De Jun Shen
Keyword(s):  
Flame Retardant ◽  
Process Optimization ◽  
Treatment Time ◽  
Orthogonal Experiment ◽  
Fire Retardant ◽  
Mixed Solution ◽  
Poplar Wood ◽  
Integration Process ◽  
Wood Veneer ◽  
Optimal Technology

In this study, the use of fire retardant, stain mixed solution using heat, pressure processing poplar veneer, the use of orthogonal experiment to determine the optimal technology mix rationale for poplar veneer: processing retardant, stain veneer process optimization flame retardant concentration of 20%; dye concentration of 0.5%; retardant treatment time 60min.

Synthesis, Application of a Novel Halogen-Free Intumescent Flame Retardant Agent for Poplar Wood Veneer

2014 ◽  
Vol 1004-1005 ◽  
pp. 1022-1025
Author(s):  
Wang Wang Yu ◽  
Tao Huang ◽  
Wen Lei
Keyword(s):  
Flame Retardant ◽  
Oxygen Index ◽  
Raw Materials ◽  
Orthogonal Experiment ◽  
Influence Factors ◽  
Intumescent Flame Retardant ◽  
Limit Oxygen Index ◽  
Poplar Wood ◽  
Wood Veneer ◽  
Halogen Free

A novel non-halogen intumescent flame retardant agent (IFR) was prepared by using phosphoric acid, pentaerythritol and aniline as raw materials, a flame-retardant poplar wood veneer was prepared by treating the veneer with IFR. The influence factors of flame retardant processing technology on poplar wood veneer were studied by the orthogonal experiment. Flammability of the veneer was investigated by Limit Oxygen Index (LOI) test. The optimal impregnated time, impregnated temperature and impregnated concentration of IFR treated poplar wood veneer were 3h, 80°C and 18% respectively, which can make the veneer get the highest LOI of 46.7%.

Flame Retardancy Research of Rubber Powder Modified Asphalt

2013 ◽  
Vol 561 ◽  
pp. 19-24
Author(s):  
Chuan Sheng Wang ◽  
Xing Wei Li
Keyword(s):  
Flame Retardant ◽  
Silicone Oil ◽  
Orthogonal Experiment ◽  
Fire Retardant ◽  
Dosage Level ◽  
Zinc Borate ◽  
Gray Relational Analysis ◽  
Decabromodiphenyl Ether ◽  
Rubber Powder ◽  
Modified Asphalt

Based on the tunnel pavement flame retardantcy requirement, flame retardant is added into rubber powder modified asphalt, and then study the flame retardant performance.For flame retardant we chose Decabromodiphenyl ethane instead of decabromodiphenyl ether, silicon is dimethyl silicone oil of flame retardant ,which can improve the flame retardant material performance,we also choose the zinc borate and aluminum hydroxide, through the orthogonal experiment and gray relational analysis method, fire retardant best species composition and dosage level is concluded.

scholarly journals Study on Properties of Flame-Retardant Plywood Made with Eucalyptus, Birch and Poplar Wood

2021 ◽  
Vol 1885 (2) ◽  
pp. 022053
Author(s):  
Chaolu Yin ◽  
Xiang Zhang ◽  
Pingli Li ◽  
Fuxin Fu
Keyword(s):  
Flame Retardant ◽  
Poplar Wood

scholarly journals Effects of Graphene Nanoplatelets on Mechanical and Fire Performance of Flax Polypropylene Composites with Intumescent Flame Retardant

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4094
Author(s):  
Imran Ali ◽  
Nam Kyeun Kim ◽  
Debes Bhattacharyya
Keyword(s):  
Flame Retardant ◽  
Decomposition Rate ◽  
Natural Fiber ◽  
Fire Retardant ◽  
Graphene Nanoplatelets ◽  
Intumescent Flame Retardant ◽  
Fume Hood ◽  
Fire Dynamics ◽  
Polypropylene Composites ◽  
Set Up

The integration of intumescent flame-retardant (IFR) additives in natural fiber-based polymer composites enhances the fire-retardant properties, but it generally has a detrimental effect on the mechanical properties, such as tensile and flexural strengths. In this work, the feasibility of graphene as a reinforcement additive and as an effective synergist for IFR-based flax-polypropylene (PP) composites was investigated. Noticeable improvements in tensile and flexural properties were achieved with the addition of graphene nanoplatelets (GNP) in the composites. Furthermore, better char-forming ability of GNP in combination with IFR was observed, suppressing HRR curves and thus, lowering the total heat release (THR). Thermogravimetric analysis (TGA) detected a reduction in the decomposition rate due to strong interfacial bonding between GNP and PP, whereas the maximum decomposition rate was observed to occur at a higher temperature. The saturation point for the IFR additive along with GNP has also been highlighted in this study. A safe and effective method of graphene encapsulation within PP using the fume-hood set-up was achieved. Finally, the effect of flame retardant on the flax–PP composite has been simulated using Fire Dynamics Simulator.

The Study of Melamine Modified by Imidazolium Based Ionic Liquid [BMIM]PF6 on the Flame Retardancy of Rigid Polyurethane Foam

2014 ◽  
Vol 1030-1032 ◽  
pp. 241-245 ◽  
Author(s):  
Yan Wei Li
Keyword(s):  
Ionic Liquid ◽  
Flame Retardant ◽  
Polyurethane Foam ◽  
Fire Retardant ◽  
Rigid Polyurethane Foam ◽  
Flame Resistance ◽  
Initial Decomposition Temperature ◽  
Noticeable Effect ◽  
Rigid Foam ◽  
Flame Retardant Properties

In this paper, the effect of C3H6N6modified by imidazolium based Ionic Liquid 1-butyl-methylimidazolium hexafluorophosphate ([BMIM]PF6) on polyurethane rigid foam flame retardant properties was conducted.The results show that the flame retardant properties of C3H6N6 modified with Ionic Liquid significantly increased and the LOI increased form 22.3 to 24.5. In the modification process, the ionic liquid mass have a very noticeable effect to the flame retardant property and when [BMIM]PF6 and C3H6N6 in quality was 4:6, Fire-retardant effect was best.Compared with the prior to the modification, C3H6N6 modified can increase effective Flame resistance of materials, horizontal burning speed from 67.6mm/min down to 33.4mm/min.Thermal degradation data show that C3H6N6 modified could improve initial decomposition temperature and reminder yield of rigid polyurethane foam,and then heat release reduced, the decomposition controlled,thermal stability increased.

scholarly journals RESEARCH OF FEATURES AND COMPOSITIONS OF VERMICULITE FOR USE AS SUSPENSION FIRE RETARDANT FOR TEXTILE MATERIALS

2020 ◽  
Vol 2020 (2) ◽  
pp. 64-69
Author(s):  
I Khaidarov ◽  
◽  
R Ismailov
Keyword(s):  
Mechanical Properties ◽  
Flame Retardant ◽  
Fire Resistance ◽  
Orthophosphoric Acid ◽  
Fire Retardant ◽  
Physical And Mechanical Properties ◽  
Textile Materials ◽  
Dispersed Particles ◽  
Expanded Vermiculite ◽  
Smoke Generation

This article presents studies of fire resistance in the treatment of expanded vermiculite, which depends on the size of the dispersed particles and the orientation of the granules, their moisture and temperature. It has been studied that one of the interesting and important in practice properties of vermiculite is its ability to swell and turn into a lightweight effective material for imparting fire resistance. The properties and compositions of vermiculite from the Tebinbulak deposit are studied, from which a flame-retardant suspension is prepared for processing textile materials based on vermiculite dissolved in orthophosphoric acid and alkali in an aqueous medium. When modifying materials with developed flame-retardant suspensions, it is possible to obtain fire-resistant textile materials that meet the requirements of GOST for fire resistance, smoke generation and other physical and mechanical properties.

scholarly journals Enhancement of Wood Biological Resistance and Fire Retardant Properties after Laccase Assisted Enzymatic Grafting

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1102
Author(s):  
Cristian Bolaño ◽  
Sabrina Palanti ◽  
Luigi Benni ◽  
Diego Moldes
Keyword(s):  
Silver Nanoparticles ◽  
Flame Retardant ◽  
Toxic Substance ◽  
Treated Wood ◽  
Fire Retardant ◽  
Wood Preservative ◽  
Decay Resistance ◽  
Kraft Lignin ◽  
Fire Retardant Properties ◽  
Wood Surfaces

Several treatments of wood, based on laccase assisted grafting, were evaluated in this paper. Firstly, the efficacy of lignosulfonate and kraft lignin from Eucalyptus spp. as a wood preservative was assessed. Both ligno products were anchored to wood surfaces via laccase treatment in order to avoid leaching. Moreover, some of these wood preservative treatments were completed with the addition of silver nanoparticles. For comparison, a commercial product was also analyzed in terms of its fungal decay resistance during surface application, in accordance to use class 3, CEN EN 335. Secondly, the anchoring of a flame retardant based on tetrabromobisphenol-A (TBBPA) was attempted, to limit the dispersion of this toxic substance from treated wood. In both cases, kraft lignin and lignosulfonate showed an improvement in wood durability, even after leaching. However, the addition of silver nanoparticles did not improve the efficacy. On the other hand, the efficacy of TBBPA as a flame retardant was not improved by grafting it with laccase treatment or by adding O2, a co-factor of laccase.

Optimization of Agar Preparation Based on Transparency

2021 ◽  
Vol 1033 ◽  
pp. 103-108
Author(s):  
Ying Cai ◽  
Zhan Xia Wu ◽  
Zhao Yu Zhang ◽  
Zhang Hu
Keyword(s):  
Activated Carbon ◽  
Treatment Time ◽  
Orthogonal Experiment ◽  
Economic Benefits ◽  
Experimental Results ◽  
Practical Significance ◽  
Process Conditions ◽  
Processing Temperature ◽  
Experimental Conditions ◽  
Filtration Method

To meet the requirement for high transparency of agar gel used in tissue culture, bacteriological applications, and high-quality cosmetics and food, this study on improving the transparency of agar products was carried out by using activated carbon for decolorization and perlite for aiding filtration. The results showed that the pre-coating filtration method was better than that of the mixed slurry filtration, so an orthogonal experiment optimization was conducted using the pre-coating filtration method based on the single factor experimental results. The experimental results showed that the optimal process conditions based on the transparency index were: concentration of agar of 1.30%, activated carbon dosage of 0.80%, processing temperature of 95 °C, and treatment time of 20 min. Agar products with gel transparency of 58.93% and blue-ray whiteness value of 93.82 could be obtained under these experimental conditions. The order of the factors influencing the decolorization ratio of agar was as follows: activated carbon dosage > concentration of agar > processing temperature > treatment time. The experimental results provided effective procession methods for the production enterprises based on transparency and increased economic benefits, and it was of practical significance.

Process Optimization of Hardening on H13 Die Steel by Diode Laser Based on Orthogonal Experiment

Applied laser ◽  
2015 ◽  
Vol 35 (3) ◽  
pp. 314-318
Author(s):  
林继兴 Lin Jixing ◽  
曹洪钢 Cao Honggang ◽  
牛丽媛 Niu Liyuan ◽  
童先 Tong Xian ◽  
李光玉 Li Guangyu ◽  
...  
Keyword(s):  
Diode Laser ◽  
Process Optimization ◽  
Orthogonal Experiment ◽  
Die Steel ◽  
H13 Die Steel
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