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flame retardant and anti-dripping properties of polylactic acid

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flame retardant and anti-dripping properties of polylactic acid

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flame retardant and anti-dripping properties of polylactic acid

2017-1-23 · Intumescent flame retardants (IFRs) are well known as new generation of flame retardants due to their merits, such as low emission of smoke and toxic gases produced during burning and anti-dripping properties [5]. The conventional IFR system is usually composed of three active ingredients, including acid source, blowing agent, and carbon source.


PET-3-hydroxyphenylphosphinyl-propanoic acid (HPP) copolymer was used as the flame-retardant (FR) agent to improve the thermal stability and flammability of the nanofiber mats. HPP is a commercial FR for polyesters which was studied from the viewpoint of chemical reactivity and reaction mechanism.


2015-9-4 · Fig. S1. Chemical structure of SPB-100. In Fig. S2, the absorption peak at 3418 cm-1 corresponds to O-H vibration adsorption and of H2O.The absorption peaks at 2958, 2924 and 2856 cm-1 are assigned to the vibration adsorption of -CH3 and -CH2-.The absorption peak at 1635


2004-7-9 · 1. A flame retardant polylactic acid polymer composition which comprises a polylactic acid polymer substrate and a synergistic mixture of (i) at least one sterically hindered amine stabilizer and (ii) at least one conventional flame retardant selected from the group consisting of the organohalogen, phosphorus containing, isocyanurate and melamine based flame retardants.


This was 78% higher than the LOI of neat PLA alone. Furthermore, PLA containing 10 wt% PKL_DS and 3–5 wt% SiRHA attained a V-0 rating on UL-94 type tests with anti-dripping behavior. It was found that there was synergism between PKL_DS and SiRHA, and this was very effective in improving the flame retardant performance of PLA.


2015-9-4 · Flame retardant and anti-dripping properties of polylactic acid/poly(bis(phenoxy)phosphazene)/expandable graphite composite and its flame retardant …


2018-8-27 · LING Q F, LI X G, JI X Y, et al. Properties of Flame Retardant and Smoke Suppression Polylactic Acid/Bamboo Flour Composites [J]. China Plastics, 2014,28(7):44-48. [4] Ke C H, Li J, Fang K Y, et al. Synergistic Effects Between a Novel Hyperbranched Charring Agent and Ammonium Polyphosphate on the Flame Retardant and Anti-dripping Properties of Polylactide [J].


Abstract An efficient flame retardant polymeric synergist poly[ N 4 -bis(ethylenediamino)-phenyl phosphonic- N 2 , N 6 -bis(ethylenediamino)-1,3,5-triazine- N -phenyl phosphonate] (PTPA) was designed and synthesized from cyanuric chloride, ethylenediamine and phenylphosphonic dichloride. It was characterized by Fourier Transform Infrared (FTIR), 1 H NMR and 31 P NMR, Elemental Analysis …


What is claimed is: 1. A heat resistant, flame retardant, polylactic acid compound, comprising: (a) polylactic acid in an amount from about 30 to about 35 weight percent of the compound; (b) polycarbonate in an amount from about 50 to about 60 weight percent of the compound; (c) talc in an amount from about 2 to about 5 weight percent of the compound; and (d) resorcinol bis (diphenyl …


2019-10-1 · Only 11.5 wt% IFR is needed to get excellent flame retardant properties, which is the lowest IFR addition for flame retarded PLA that has been reported so far [6,30]. The high flame retardant efficiency of this IFR should be attributed to the high melt strength of PLA toughened by VBUP, which can suppress the generation of droplets.


The addition of TCP and MMT produced excellent anti-dripping and self-extinguishing behaviors of the blends, achieving Ⅴ-0 rating. For the PLA/PBS blends, the synergistic combination of PBS and additives led to an acceleration of cold crystallization, a significant increment of flexibility and impact toughness, and an improvement of flame ...


2020-1-20 · This was 78% higher than the LOI of neat PLA alone. Furthermore, PLA containing 10 wt% PKL_DS and 3–5 wt% SiRHA attained a V-0 rating on UL-94 type tests with anti-dripping behavior. It was found that there was synergism between PKL_DS and SiRHA, and this was very effective in improving the flame retardant performance of PLA.


2019-10-1 · Considering the amount of flame retardant (11.5 wt%) and anti-dripping properties, it owns the best performance. Download : Download high-res image (1MB) Download : Download full-size image; Fig. 8. Dependence of flame retardant content on the mechanical properties of flame retarded PLA with UL-94 V-0 rating.


What is claimed is: 1. A heat resistant, flame retardant polylactic acid compound, consisting of: (a) from about 30 to about 39 weight percent, by weight of the compound, of polylactic acid; (b) a carbonate polymer selected from the group consisting of (i) polycarbonate, (ii) polyphosphonate-co-carbonate, and (iii) a combination of them; (c) a non-halogenated flame retardant selected from the ...


2019-5-10 · A new coating improves the flame retardant and hydrophilic properties of PA66 fabrics. Image source: HG-Fotografie / Pixabay. (Symbol image) A hybrid methodology, including a few layer deposition of bio-based polyelectrolytes, chitosan (CS) and phytic acid (PA), along with a sol-gel treatment from (3-Aminopropyl) triethoxysilane (APTES) and ...


2021-6-30 · charcoal (BC) and chitosan (CS) was developed for polylactic acid (PLA) with improved flame retardancy and minimal decline in strength properties. Chitosan (CS) as an adhesion promoter


Silicon/nitrogen synergistically reinforced flame-retardant PA6 nanocomposites with simultaneously improved anti-dripping and mechanical properties† Shuo Fan ab , Ruchao Yuan ab , Dequn Wu * ab , Xueli Wang c , Jianyong Yu c and Faxue Li * ab a Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua ...


2017-7-14 · The flammability and melt dripping of the widely used bio-based polyamide 11 (PA 11) have attracted much attention in the last decade, and they are still a big challenge for the fire science society. In this work, a novel single macromolecular intumescent flame retardant (AM-APP) that contains an acid source and a gas source was prepared by supramolecular reactions between melamine and p ...


2021-1-1 · This indicates that the GPA coating improves the anti-dripping phenomenon of PET fabrics, promotes char formation, and exerts a slight intumescent flame retardant function. Char residues have a physical insulation barrier effect, which isolates heat and oxygen to protect the fibers [ 51 ].


A series of flame-retardant anti-dripping polyester( PET) with different phosphorus-and-nitrogen ratio was prepared by adding an intumescent flame retardant system of 2-carboxyethyl phenyl phosphinic acid( CEPPA) and melamine cyanurate( MCA) into the reaction system during the esterification stage of PET synthesis process. The thermal properties,char formation and combustion characteristics of ...


2019-5-25 · Flame-retardant and Anti-dripping Properties of Intumescent Flame-retardant Polylactide with Different Synergists. Polymer-Plastics Technology and Engineering 2014, 53 (4) , 387-394. DOI: 10.1080/03602559.2013.844826. M. Murariu, F. Laoutid, Ph.


retardant polylactic acid† ... tant materials exhibited a heavy dripping phenomenon and became more brittle as compared to the neat PLA. Considering ... tensile properties of neat PLA and the ame retardant composites. 3 Results and discussion 3.1 Dispersion of M-GO in PLA


2009-2-20 · Jing Zhan, Lei Wang, Ningning Hong, Weizhao Hu, Jian Wang, Lei Song, Yuan Hu, Flame-retardant and Anti-dripping Properties of Intumescent Flame-retardant Polylactide with Different Synergists, Polymer-Plastics Technology and Engineering, 10.1080/03602559.2013.844826, 53, 4, …


Significant disadvantages of the use of polylactic acid (PLA), lack of good heat stability and flame retardance, have been overcome by the use of an aryl phosphate in combination with talc. The compound achieves a threshold of 65° C. in heat deflection temperature and V-0 flame …


A significant disadvantage of the use of polylactic acid (PLA), lack of flame retardance, has been overcome by the use of polyphosphonate-co-carbonate in combination with an impact modifier, a drip suppressant, and optionally, an epoxy functional styrene-acrylate oligomeric chain extender. The compound achieves a UL 94 rating of V-0 or V-1 and a Notched Izod value of more than about 5 ft-lbs/in.


2020-11-2 · ZnO-intumescent flame retardant (IFR) system has been reported to be effective in flame retardancy property of the polypropylene-ethylene-propylene-diene monomer (PP-EPDM) polymer blend. 52 The IFR used here was self-designed out of poly ammonium phosphate (acid source), dipentaerythritol (carbonization agent), and melamine (blowing agent ...


2019-4-22 · Intumescent Flame Retardant on Flame Retardancy of Biopolymer Composites and Investigation of ... to 36.6–37.8% and also endowed PLA/FR/KL composites with improved anti-dripping properties. ... PLA = Polylactic acid, APP = Ammonium polyphosphate, KL = Kraft lignin, LOI = Limiting Oxygen Index, N/Y ...


2015-9-4 · Flame retardant and anti-dripping properties of polylactic acid/poly(bis(phenoxy)phosphazene)/expandable graphite composite and its flame retardant mechanism Xiaowei Mu, Bihe Yuan, Weizhao Hu, Shuilai Qiu, Lei Song,* Yuan Hu* State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China


Xiaowei Mu,Lei Song, Yuan Hu, et al. Flame retardant and anti-dripping properties of polylactic acid/poly (bis (phenoxy)phosphazene)/expandable graphite composite and its flame retardant mechanism....


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2017-1-1 · Wang et al. investigated the flame-retardant properties of PLA/microencapsulated APP/starch composites: LOI value reached 41.0% and UL 94 V-0 was achieved at the loading of 20 wt% microencapsulated APP and 10 wt% starch. 39 Starch was also applied as a natural charring agent in PLA foams, showing improved flame resistance and antidripping properties. 40 Urea-modified lignin …


A cooperative flame-retardant system based on natural intumescent-grafted bamboo charcoal (BC) and chitosan (CS) was developed for polylactic acid (PLA) with improved flame retardancy and minimal decline in strength properties. Chitosan (CS) as an …


2016-6-15 · Phytic acid was applied in the flame retardant functionalization of poly(lactic acid) nonwoven fabric. • Phytic acid was applied by a pad-dry-cure technique. • A condensed-phase flame retardant mechanism was applicable to the treated poly(lactic acid) nonwoven fabric. • Phytic acid can be used as a sustainable and cleaner phosphorus flame retardant agent.


2018-6-11 · On the premise of maintaining good flame-retardant performance, we improved the toughness of flame-retardant PLA composite, and the impact strength of flame-retardant PLA composite was more than tripled (8.08 kJ/m 2) by adding thermoplastic urethanes (TPU). This work offers an innovative method for the design of the unique integration of ...


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