Evidence map›Paper›PMID 39771435›Full record

ArticlePolymers2024

The Catalytic Degradation of Waste PU and the Preparation of Recycled Materials.

Xiaohua Gu, Jiahao Xu, Shangwen Zhu, Qinglong Zhao, Shaochun Sun, Yanxun Zhang, Qingyong Su, Canyan Long

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Polymers, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Xiaohua GuSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Jiahao XuSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Shangwen ZhuSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.ORCID 0009-0008-0415-9445
Qinglong ZhaoCollege of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China.
Shaochun SunSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Yanxun ZhangSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Qingyong SuSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.
Canyan LongSchool of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this paper, we investigated the efficient metal-free phosphorus-nitrogen (PN) catalyst and used the PN catalyst to degrade waste PU with two-component binary mixed alcohols as the alcohol solvent. We examined the effects of reaction temperature, time, and other factors on the hydroxyl value and viscosity of the degradation products; focused on the changing rules of the hydroxyl value, viscosity, and molecular weight of polyols recovered from degradation products with different dosages of the metal-free PN catalyst; and determined the optimal experimental conditions of reaction temperature 180 °C, reaction time 3 h, and PN dosage 0.08%. The optimal experimental conditions were 180 °C, 3 h reaction time, and 0.08% PN dosage, the obtained polyol viscosity was 3716 mPa·s, the hydroxyl value was 409.2 mgKOH/g, and the number average molecular weight was 2616. The FTIR,

Indexed as

alcoholysisPN catalystrecycled materialswaste polyurethane

Identifiers

PMID39771435
PMCPMC11679310

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.