Flame Resistant Silicone-Containing Coating Materials

Round 1

Reviewer 1 Report

Manuscript: ID-coatings 784066

Title: Flame resistant silicone-containing coating materials.

Reviewer comments:

The authors have produced an interesting review concerning the preparation of silicone -based coatings with flame resistant behaviour. The work has been undertaken diligently and the references added support the conclusions. I would suggest publishing it on Coatings after minor revisions.

(1) lines 73-78: the explanation of references source is not necessary, and authors should delete this part.

 

(2) lines 78-81: the last sentence is a repetition of abstract. The authors should delete this sentence either in abstract section or in introduction part.

(3) line 107 and 137: the authors underline several time the role of silicone-based compounds molecular weight but no data about it (or a range of molecular weight) is discussed. The authors should revise this part adding some relevant examples and more precise data.

 

(4) section 3.2: the authors describe the use of CNT-based additives as emerging additives for silicone materials. However, the use of CNT should be described exploiting other emerging flame retardant nanotubes-based fillers such as halloysite nanotubes. In this moment, I think that this part is poor.

 

(5) lines 343-346: there is some problems with the text formatting. The last sentence is incomplete.

 

Author Response

Response to Reviewer 1 Comments

We would like to thank the Reviewer for careful and thorough reading of this manuscript and for the thoughtful comments and constructive suggestions, which help to improve the quality of this manuscript. Our response follows:

Point 1: lines 73-78: the explanation of references source is not necessary, and authors should delete this part.

Response 1: According to Reviewer  comment the explanation of references source was deleted.

Point 2: lines 78-81: the last sentence is a repetition of abstract. The authors should delete this sentence either in abstract section or in introduction part.

Response 2: According to Reviewer  comment the sentence in the lines 22-24 in the Abstract section being the repetition from the lines 78-81 was deleted.

Point 3: line 107 and 137: the authors underline several time the role of silicone-based compounds molecular weight but no data about it (or a range of molecular weight) is discussed. The authors should revise this part adding some relevant examples and more precise data.

Response 3: According to Reviewer comment the relevant precise data for the effect of PDMS different  chain length (determining the different molecular weight) on time to ignition and heat release rate with more were added.

Point 4: section 3.2: the authors describe the use of CNT-based additives as emerging additives for silicone materials. However, the use of CNT should be described exploiting other emerging flame retardant nanotubes-based fillers such as halloysite nanotubes. In this moment, I think that this part is poor.

Response 4:  According to Reviewer comment the description of the role of halloysite nanotubes on flame resistance of PDMS was added. The needs of halloysite nanotubes modification to achieve the significant effect was underlined.

Point 5: (5) lines 343-346: there is some problems with the text formatting. The last sentence is incomplete.

Response 5:  According to Reviewer comment this passage incorrectly inserted during formatting was delated. This text is included in Table 2.

Author Response File: Author Response.pdf

Reviewer 2 Report

This work mainly reviews the flame retardancy of PDMS based coating materials, including the thermal degradation of PDMS systems, the effect of additives and crosslinking systems on flame resistance, and flame resistance of hybrid silicone-containing coating materials. The design of this review is quite good, and this review is well-written as well. In the field of fire safety especially in silicone-based coatings, review like this work is seldomly reported. Therefore, this work is meaningful and has the value to guide the research work both in lab and industry. Moreover, I have some suggestions for authors to further perfect this review.

• First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …
• More suitable figures would make it better to help readers to understand.

 

Author Response

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

Response to Reviewer 2 Comments

We wish to thank Reviewer for your constructive comments providing valuable insights to the contents of this manuscript. We try to address the issues raised as best as possible. Our response follows:

Point 1: First, in the classification of the additives, it may be better if the additives are classified by the morphologies, such as one-dimensional including nanotube, rods …, two-dimensional including nanosheets, plates … three-dimensional such as spheres, cubes, clusters …

Response 1:  According to Reviewer  comment the morphological classification of additives was added. The effect of the additives morphology on the flame resistance of PDMS composites was underlined and presented on the diagram. The whole text of this part was restructured.

Point 2: More suitable figures would make it better to help readers to understand.

Response 2:  According to Reviewer comment the figure illustrating the effect of the morphology on flame resistance  of PDMS composites was added.

 

Author Response File: Author Response.pdf