The flammability and mechanical properties of poly (lactic acid) composites containing Ni-MOF nanosheets with polyhydroxy groups

Wang, Xingguo; Wang, Shuheng; Wang, Wenjia; Li, Hongfei; Liu, Xiaodong; Gu, Xiaoyu; Bourbigot, Serge; Wang, Zhongwei; Sun, Jun

doi:10.1016/j.compositesb.2019.107568

Cited by 77 publications

(27 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But, the LOI and UL‐94 levels of the polymer composites cannot be improved obviously by the addition of MOFs. Also, it has been reported that the combination of Ni‐MOF and APP was used to improve the flame retardancy of PLA 33 . To the best of our knowledge, copper as a transition metal has a positive effect on flame retardancy of TPU.…”

Section: Introductionmentioning

confidence: 89%

Copper metal‐organic framework toward flame‐retardant enhancement of thermoplastic polyurethane elastomer composites based on ammonium polyphosphate

Chen

et al. 2021

Polymers for Advanced Techs

View full text Add to dashboard Cite

In this article, copper metal‐organic framework (MOF‐Cu) was synthesized and used as synergism with ammonium polyphosphate (APP) to prepare flame‐retardant thermoplastic polyurethane (TPU) composites. The synergistic flame‐retardant effects between MOF‐Cu and APP in TPU composites were studied by cone calorimeter (CCT), limiting oxygen index tests (LOI), vertical burning tests (UL‐94), smoke density test, etc. The results showed that MOF‐Cu had some flame‐retardant effects on TPU, and APP had good flame retardancy in TPU/APP composites. And, the flame retardancy of TPU/APP was further enhanced when MOF‐Cu was used as synergism with APP. It has been found that the peak heat release rate (pHRR) and total heat release (THR) values of TPU/Cu0.0625 sample were reduced by 26.0% and 1.3% compared with pure TPU, respectively. And the pHRR and THR values of TPU/APP sample were reduced by 70.3% and 15.8% compared with pure TPU. In the case of TPU/APP/Cu0.0625 sample, the pHRR and THR values were furtherly reduced by 19.2% and 63.4% compared with TPU/APP, because of the minor amount of MOF‐Cu. It has been found MOF‐Cu cannot suppress the smoke release and reduce the total smoke release (TSR) value. However, 0.125 wt% MOF‐Cu can make the TSR value of TPU/APP/Cu0.125 sample reduce to 227.8 m2/m2, which was 23.4% lower than that of TPU/APP. The good synergistic flame‐retardant effect between MOF‐Cu and APP was obtained by the catalyzing carbonization process to form the char residue layer with high graphitization and expansion degree.

show abstract

Section: Introductionmentioning

confidence: 89%

Copper metal‐organic framework toward flame‐retardant enhancement of thermoplastic polyurethane elastomer composites based on ammonium polyphosphate

Chen

et al. 2021

Polymers for Advanced Techs

View full text Add to dashboard Cite

show abstract

“…Reproduced from Ref. [74] with permission from Elsevier 1 3 PLA composites were achieved, which achieved UL-94 V0 rating [43]. They also reported that the dehydration and crosslink of polyhydric resulting from the decomposition of Ni-MOF are beneficial to the formation of the thermal stable char residue with the presence of more P and N elements, which act as a physical barrier in the condensed 4.00 mm 1.40 mm 1.20 mm 1.00 mm 0.80 mm 0.60 mm 0.40 mm 0.20 mm 0.00 mm 3.00 mm 2.00 mm 1.00 mm 0.00 mm 0.00 mm 1.00 mm Fig.…”

Section: Mofs or Mof Derivatives As Synergistsmentioning

confidence: 99%

“…The melt blending method mentioned here includes the physical mixing of both thermoplastic and thermosetting polymer. By using this method, thermoplastic polymers such as PLA [ 43 ] or polypropylene (PP) were directly mixed with the melted polymer in a chamber followed by the physical mixing with the twin-screw extruder. The thermosetting polymers such as epoxy (EP) [ 44 ] or unsaturated polyesters (UP) [ 45 ] were melt-mixed with the fillers at high temperature followed by the curing process.…”

Section: Preparation Of Mof/polymer Compositesmentioning

confidence: 99%

“…Firstly, the modified MOF (α-Phenyl- N -(2-propyl-2-hydroxymethyl-1, 3-dihydroxy)-imine-nickel (II), labeled as Ni-MOF) was prepared, which contained polyhydroxy groups. With the addition of total loading at 5 wt% (1.7% Ni-MOF and 3.3% APP), the fire safety PLA composites were achieved, which achieved UL-94 V0 rating [ 43 ]. They also reported that the dehydration and crosslink of polyhydric resulting from the decomposition of Ni-MOF are beneficial to the formation of the thermal stable char residue with the presence of more P and N elements, which act as a physical barrier in the condensed phase.…”

Section: Mof Applied In Fire Retardancy Researchmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress on Metal–Organic Framework and Its Derivatives as Novel Fire Retardants to Polymeric Materials

Zhang

et al. 2020

Nano-Micro Lett.

View full text Add to dashboard Cite

High flammability of polymers has become a major issue which has restricted its applications. Recently, highly crystalline materials and metal–organic frameworks (MOFs), which consisted of metal ions and organic linkers, have been intensively employed as novel fire retardants (FRs) for a variety of polymers (MOF/polymer). The MOFs possessed abundant transition metal species, fire-retardant elements and potential carbon source accompanied with the facile tuning of the structure and property, making MOF, its derivatives and MOF hybrids promising for fire retardancy research. The recent progress and strategies to prepare MOF-based FRs are emphasized and summarized. The fire retardancy mechanisms of MOF/polymer composites are explained, which may guide the future design for efficient MOF-based FRs. Finally, the challenges and prospects related to different MOF-based FRs are also discussed and aim to provide a fast and holistic overview, which is beneficial for researchers to quickly get up to speed with the latest development in this field.

show abstract

“…The direct addition of flame retardant is more widely‐used because of its simple operation and low cost. The hot research direction of those added flame retardants is the intumescent flame retardant system with phosphorus/nitrogen synergistic effect 9‐12 . The combination of ammonium polyphosphate (APP) and charring agent is one of the most general and efficient intumescent flame retardant systems 13 .…”

Section: Introductionmentioning

confidence: 99%

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Zhang

Jiang

Sun

et al. 2021

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

This work reports our recent efforts on the preparation of functionalized multi‐walled carbon nanotubes (f‐CNTs) and its application in improving the fire, conductive, and mechanical performance of epoxy resin (EP) composites in combination with graphite sheets (GSs). The addition of hybrid carbon nanomaterials can effectively improve the mechanical properties of epoxy. Consequently, when the mass fraction of f‐CNTs/GSs is 3.9 wt%, the limiting oxygen index (LOI) value is increased to 27.4%, and the tensile strength and notched impact strength of epoxy are increased by 33.5% and 44.8%, respectively. Increasing the content of carbon nanomaterials can further improve the flame retardancy and electrical conductivity of EP composites. For the sample containing 11.0 wt% f‐CNTs/GSs, the electrical conductivity is further increased to 1.7 × 10−3 S/cm, which can be regarded as conductive materials. The LOI value is reached to 28.6%, with peak heat release and total heat release reduced by 26.4% and 16.4%, respectively.

show abstract

The flammability and mechanical properties of poly (lactic acid) composites containing Ni-MOF nanosheets with polyhydroxy groups

Cited by 77 publications

References 42 publications

Copper metal‐organic framework toward flame‐retardant enhancement of thermoplastic polyurethane elastomer composites based on ammonium polyphosphate

Copper metal‐organic framework toward flame‐retardant enhancement of thermoplastic polyurethane elastomer composites based on ammonium polyphosphate

Recent Progress on Metal–Organic Framework and Its Derivatives as Novel Fire Retardants to Polymeric Materials

Preparation of flame retardant and conductive epoxy resin composites by incorporating functionalized multi‐walled carbon nanotubes and graphite sheets

Contact Info

Product

Resources

About