Colloid and Polymer Science最新文献_第2页

Determination of the Hamaker constant for polymers using their Hansen solubility parameters 用汉森溶解度参数测定聚合物的Hamaker常数

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-02-11 DOI: 10.1007/s00396-025-05386-8

Hiroyuki Ohshima, Shin-ichi Takeda

引用次数: 0

Biocompatible Zr-based nanoscale MOFs coated with hyaluronic acid as promising drug delivery system for sports injuries 透明质酸包覆zr基纳米mof作为运动损伤药物递送系统前景广阔

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-02-11 DOI: 10.1007/s00396-025-05385-9

Fei Zhang, Mingzhu Xie, Jing Zhao

{"title":"Biocompatible Zr-based nanoscale MOFs coated with hyaluronic acid as promising drug delivery system for sports injuries","authors":"Fei Zhang, Mingzhu Xie, Jing Zhao","doi":"10.1007/s00396-025-05385-9","DOIUrl":"10.1007/s00396-025-05385-9","url":null,"abstract":"<p>With the rapid development of nanotechnology, nanocarriers play an important role in achieving precise drug delivery and controlled release. Among them, nanoscale metal organic frameworks (NMOFs) have shown great potential due to ultra-high specific surface area, controllable size, tunable structure and open metal sites. The aim of this study is to enhance the multifunctionality of UiO-66-NH<sub>2</sub> NMOFs, such as physiological stability, biocompatibility, pH responsiveness, and targeting, by post-synthetic modification with hyaluronic acid-dopamine (HA-DA) functional material. The structure, size, and morphology were characterized by IR, XRD, DLS, and SEM, and the stability, drug-loading capacity, controlled release, and biocompatibility under different conditions were evaluated. The results showed that the particle size distribution and surface properties were improved after modification. This modification not only enhanced the stability in physiological environment, but also accelerated drug release in the acidic environment and improved drug bioavailability, which was of great significance for targeting acidic microenvironments. Cytotoxicity experiments further showed that the introduction of HA-DA effectively reduced the cytotoxicity and provided more suitable environment for cell growth. This study can achieve responsive release, alleviate inflammatory response, and promote tissue repair, especially for sports injuries, which provides a new approach for developing efficient and safe drug delivery systems.</p><p>Based on the structural properties of NMOF, a UiO-66-NH<sub>2</sub> NMOF drug delivery system was constructed by the post-synthetic modification of hyaluronic acid-dopamine (HA-DA). This kind of drug delivery system exhibits excellent stability and biocompatibility, and achieves responsive release, which may alleviate inflammatory response and promote tissue repair. This study provides a new approach for developing efficient and safe drug delivery systems.\u0000</p>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"831 - 844"},"PeriodicalIF":2.2,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and properties of silicone hydrogel contact lens based on PDMS-PU macromer PDMS-PU高分子硅水凝胶隐形眼镜的制备及性能研究

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-02-03 DOI: 10.1007/s00396-025-05379-7

Jiaxin Zeng, Qianrui Xu, Yingrui Nie, Xuelian Han, Yong Jiang

{"title":"Preparation and properties of silicone hydrogel contact lens based on PDMS-PU macromer","authors":"Jiaxin Zeng, Qianrui Xu, Yingrui Nie, Xuelian Han, Yong Jiang","doi":"10.1007/s00396-025-05379-7","DOIUrl":"10.1007/s00396-025-05379-7","url":null,"abstract":"<div><p>The production of highly oxygen-permeable hydrogel materials is usually accomplished by incorporating highly oxygen-permeable silicon chain segments into the hydrogel system. Silicone hydrogels are prepared using two types of monomers: small molecule siloxanes and macromeric siloxanes. However, while small-molecule siloxane monomers have limited improvement in oxygen permeability, macromer siloxane monomers such as polydimethylsiloxane (PDMS) have better oxygen permeability but are poorly compatible with hydrophilic monomers, and direct copolymerization is not able to obtain transparent and homogeneous materials. To address this issue, PDMS was modified to synthesize polydimethylsiloxane-polyurethane (PDMS-PU) macromers, which were characterized by GPC and 1H NMR. UV-initiated free-radical polymerization was used to prepare silicone hydrogel contact lenses by copolymerizing PDMS-PU macromer, bis(trimethylsiloxane)methylsiliconpropylglycerol methacrylate (SIGMA), DMA, NVP, PEGMA, and HEMA in various ratios. The resulting copolymers were characterized using various methods including thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), refractive index (RI), equilibrium water content (EWC), oxygen permeability (Dk), optical transparency, contact angle, mechanical properties, protein deposition, and cytotoxicity. The results showed that the silicone hydrogels were resistant to protein deposition and noncytotoxicity, the Dk could be increased from 65 to 91 barrers when the percentage of PDMS-PU was increased from 0 to 20 wt%, and the properties of the synthesized silicone hydrogel polymers, such as RI, EWC, and oxygen permeability, Dk, showed a linear dependence on the percentage of PDMS-PU. This study suggests a possible idea for the preparation of highly oxygen permeable silicone hydrogel contact lens materials with tunable properties.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"793 - 804"},"PeriodicalIF":2.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the water absorption properties of bacterial cellulose by in-situ and ex-situ modifications for use in CMC-graft-sodium acrylate superabsorbent 通过原位和非原位改性提高细菌纤维素在cmc -接枝丙烯酸钠高吸水性中的吸水性能

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-02-01 DOI: 10.1007/s00396-024-05371-7

Maryam Nasresfahani, Valiollah Babaeipour, Mohammad Imani

{"title":"Improving the water absorption properties of bacterial cellulose by in-situ and ex-situ modifications for use in CMC-graft-sodium acrylate superabsorbent","authors":"Maryam Nasresfahani, Valiollah Babaeipour, Mohammad Imani","doi":"10.1007/s00396-024-05371-7","DOIUrl":"10.1007/s00396-024-05371-7","url":null,"abstract":"<div><p>Hydroxyl functional groups along the bacterial cellulose (BC) chains serve as sites for BC modification sites. This study focuses on in-situ and ex-situ modifications of BC to enhance its rehydration and equilibrium swelling ratio. In-situ modification of BC was achieved by adding carboxymethyl cellulose (CMC), sodium bicarbonate, and rapeseed oil to the culture medium of <i>Acetobacter xylinum</i>. Following this, BC ex-situ modification was conducted using sodium bicarbonate (5, 10, and 15 wt%) and glycerol (1, 2.5, and 5 v.v<sup>−1</sup>%) solutions, utilizing the in-situ modified samples as starting materials. The final modified BC (MBC) exhibited an impressive increase of up to 2329.67% in its equilibrium swelling ratio and a 62.69% increase in rehydration compared to the unmodified sample. In the study’s second phase, two superabsorbents were synthesized through the polymerization of partially neutralized acrylic acid on the CMC backbone, both with and without MBC. The swelling ratio of these superabsorbents was investigated, and the amount of sodium acrylate, CMC, aluminum hydroxide (Al(OH)<sub>3</sub>, used as an inorganic cross-linker), and ammonium persulfate ((APS, as an initiator) was optimized using the central composite design (CCD) method to achieve a high swelling ratio. The resulting superabsorbents showed swelling ratios of 306 (g water.g<sup>−1</sup> dry superabsorbent) and 326 (g water.g<sup>−1</sup> dry superabsorbent), without and with MBC, respectively. This study represents one of the first attempts to explore both BC in-situ and ex-situ modifications of BC aimed at improving its rehydration and swelling ratios and its application in superabsorbent.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"759 - 777"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supramolecular gels from phosphonic acid-containing two-component gelators: efficient phase-selective gelation of aromatic and aliphatic hydrocarbons 含膦酸双组分凝胶的超分子凝胶：芳香烃和脂肪烃的高效相选择凝胶

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-31 DOI: 10.1007/s00396-025-05381-z

Thoudam Johnson Singh, Leishangthem Roshnita Devi, Ayekpam Thoungamba Meitei, Wangkhem Paikhomba Singh, Ningombam Yaiphaba, Rajkumar Sunil Singh

{"title":"Supramolecular gels from phosphonic acid-containing two-component gelators: efficient phase-selective gelation of aromatic and aliphatic hydrocarbons","authors":"Thoudam Johnson Singh, Leishangthem Roshnita Devi, Ayekpam Thoungamba Meitei, Wangkhem Paikhomba Singh, Ningombam Yaiphaba, Rajkumar Sunil Singh","doi":"10.1007/s00396-025-05381-z","DOIUrl":"10.1007/s00396-025-05381-z","url":null,"abstract":"<div><p>We report the efficient supramolecular gelation of multiple organic solvents by the two-component gelators comprising of phenyl phosphonic acid and the two amino acid derivatives – (<i>S</i>)-2-amino-<i>N</i>-hexadecyl-3-phenylpropanamide and (<i>S</i>)-2-amino-<i>N</i>-hexadecyl-3-methylbutanamide. Significantly, these gelators induced phase-selective gelation of several types of aromatic, aliphatic, and mixed aromatic/aliphatic hydrocarbon solvents from the respective two-phase aqueous mixtures. Thus, these gelators can separate aromatic and aliphatic hydrocarbons from aqueous mixtures. Detailed characterisations of some selected gels were performed using SEM, FTIR, rheology, and XRD techniques. We propose that multiple non-covalent interactions – H-bonding, ionic, hydrophobic, π–π interactions – are responsible for self-aggregation, gel formation and stabilization. Interestingly, a closely related analogue phenyl phosphinic acid in combination with the same amino acid derivatives displayed modest gelation ability. In these two-component systems, the diprotic phenyl phosphonic acid is considerably more effective than the monoprotic phenyl phosphinic acid. This study convincingly demonstrates that phosphonic acid derivatives are highly promising for developing efficient functional two-component gelators and will provide an invaluable method for designing new small-molecule gelators.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"779 - 792"},"PeriodicalIF":2.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nano-Al2O3 obtained the best tribological properties than similar hardness nanoparticles filled into epoxy resin 与相同硬度的纳米颗粒填充在环氧树脂中相比，纳米al2o3获得了最好的摩擦学性能

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-31 DOI: 10.1007/s00396-025-05383-x

Jiankai Cui, Ying Tian, Ruojia Li, Jianjun Zhang, Shaomei Zheng, Feng Guo, Qinglun Che

{"title":"Nano-Al2O3 obtained the best tribological properties than similar hardness nanoparticles filled into epoxy resin","authors":"Jiankai Cui, Ying Tian, Ruojia Li, Jianjun Zhang, Shaomei Zheng, Feng Guo, Qinglun Che","doi":"10.1007/s00396-025-05383-x","DOIUrl":"10.1007/s00396-025-05383-x","url":null,"abstract":"<div><p>To meet the challenges associated with friction and wear in mechanical moving components, the tribological performance of a class of nanoparticles (Si<sub>3</sub>N<sub>4</sub>, ZrO<sub>2</sub>, SiC, and Al<sub>2</sub>O<sub>3</sub>) filled into epoxy resin was investigated in this study. Compared with the pure epoxy resin, the mechanical strength and tribological properties of the prepared composites significantly improved. More encouragingly, the resulting epoxy resin composites filled by Al<sub>2</sub>O<sub>3</sub> demonstrated outstanding lubricating properties; the improvement in tribological performance under boundary lubrication is attributed to a robust friction film containing nanocrystalline iron oxide and abundant Al<sub>2</sub>O<sub>3</sub> nanoparticles. Moreover, the tribological behaviors of four types of nanoparticles were primarily dependent on the tribo-film. Overall, this study provides valuable insights into the application of polymer composites for a wide range under harsh lubrication condition.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"735 - 745"},"PeriodicalIF":2.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption and dilational rheology of polyacrylamide at interfaces: Implication on the stability of polymer-containing foamulsions 聚丙烯酰胺在界面上的吸附和膨胀流变性：对含聚合物泡沫乳液稳定性的影响

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-31 DOI: 10.1007/s00396-024-05370-8

Feng Lin

{"title":"Adsorption and dilational rheology of polyacrylamide at interfaces: Implication on the stability of polymer-containing foamulsions","authors":"Feng Lin","doi":"10.1007/s00396-024-05370-8","DOIUrl":"10.1007/s00396-024-05370-8","url":null,"abstract":"<div><p>Understanding and developing a stable oil-laden foam (foamulsion) with targeted properties is important for many industrial applications including mineral flotation and resource recovery. In this work, the adsorption and interfacial viscoelasticity of polyacrylamide (PAM) and Triton X-100 (TX100) systems at the oil–water and air–water interfaces were investigated using dynamic tensiometry and dilational rheology measurements. For comparison, the TX100-alone systems were also examined at identical conditions. Pentane and dodecane were employed as representative oils. Dynamic surface/interfacial tension data for both mixed TX100/PAM and TX100-alone solutions could be well described by an empirical kinetic model. Although PAM itself in water was interface-inactive, the presence of TX100 surfactant with an onset concentration or above would induce the adsorption of PAM into the interfaces, as indicated by slower adsorption kinetic constant and higher viscoelastic moduli. A more concentrated surfactant in water was required for the oil–water interface than that for the air–water interface to trigger a significant impact of PAM on dynamic tensiometry and dilational viscoelasticity data. In addition, foam height decay profiles in oil–water mixture at two surfactant concentrations with or without PAM were monitored, from which the stability of foamulsion was quantified by foam half-life. It was found that at a low surfactant concentration, PAM had a negligible influence on the stability of foamulsions. However, PAM boosted the stability of foamulsions at relatively higher surfactant concentration (0.06 wt%), regardless of solvent types and contents. Correlation of foamulsion stability with interfacial tension and dilational viscoelasticity data is discussed.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"747 - 758"},"PeriodicalIF":2.2,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00396-024-05370-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physicochemical and DFT insights into streptomycin sulfate and cetrimonium bromide interactions 硫酸链霉素和西曲溴铵相互作用的物理化学和DFT见解

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-30 DOI: 10.1007/s00396-025-05382-y

Naved Azum, Malik Abdul Rub, Anish Khan, Mohammad Asad, Aftab Aslam Parwaz Khan, Khalid Ahmed Alzahrani, Hadi M. Marwani

{"title":"Physicochemical and DFT insights into streptomycin sulfate and cetrimonium bromide interactions","authors":"Naved Azum, Malik Abdul Rub, Anish Khan, Mohammad Asad, Aftab Aslam Parwaz Khan, Khalid Ahmed Alzahrani, Hadi M. Marwani","doi":"10.1007/s00396-025-05382-y","DOIUrl":"10.1007/s00396-025-05382-y","url":null,"abstract":"<div><p>Electrical conductivity measurements at 298.15 K were conducted to study the formation of mixed micelles with the antibiotic streptomycin sulfate (SMS) and the cationic surfactant cetrimonium bromide (CB) at various mole fraction (<i>α</i><sub>1</sub>) of SMS. It was observed that the critical micelle concentration (cmc) values decreased in the mixed system, with experimental cmc values being lower than the ideal cmc values (cmc*), indicating non-ideal behavior. We used theoretical models from Clint, Rubingh, Motomura, and Rodenas to analyze micellar mole fractions (<i>X</i><sub>i</sub>) and activity coefficients (<i>f</i><sub>i</sub>). The interaction parameter (<i>β</i>) calculated via Rubingh’s model revealed a synergistic effect, attributed to hydrophobic interactions between the drug and surfactant. Thermodynamic parameters confirmed that mixed micellization is spontaneous and more stable than individual micelles. Additionally, computational simulations helped optimize our molecules, enhancing our understanding of drug-surfactant interactions. This study underscores the significance of electrical conductivity measurements and density functional theory (DFT) in examining drug behavior in the presence of surfactant.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 5","pages":"723 - 734"},"PeriodicalIF":2.2,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic effect of organo-modified montmorillonite and intumescent flame retardant on improving flame retardancy and thermal stability of polypropylene composites 有机改性蒙脱土与膨胀型阻燃剂对提高聚丙烯复合材料阻燃性和热稳定性的协同作用

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-22 DOI: 10.1007/s00396-025-05374-y

Nana Tian, Fanjin Meng, Yiming Wang, Qing He, Shixin Liu, Shaolan Zou, Fengmin Jin, Tao Tang

{"title":"Synergistic effect of organo-modified montmorillonite and intumescent flame retardant on improving flame retardancy and thermal stability of polypropylene composites","authors":"Nana Tian, Fanjin Meng, Yiming Wang, Qing He, Shixin Liu, Shaolan Zou, Fengmin Jin, Tao Tang","doi":"10.1007/s00396-025-05374-y","DOIUrl":"10.1007/s00396-025-05374-y","url":null,"abstract":"<div><p>It is still a great challenge to increase the efficiency of intumescent flame retardant (IFR) in polypropylene (PP) system. Here, the synergistic effects of organo-modified montmorillonite (OMMT) on flame retardancy and thermal degradation of a novel halogen-free intumescent flame retardant PP system, which was composed of the charring agent (SBCPO), ammonium polyphosphate (APP) and PP matrix, were investigated. The experimental data indicated that a small amount of OMMT (3 wt%) could significantly improve the limiting oxygen index (LOI) value of PP/IFR system to 29.5%, and the composites could pass the UL-94 V-0 rating. Meanwhile, the cone calorimeter test (CCT) results demonstrated that the peak of heat release rate (PHRR), total heat release (THR), smoke produce rate (SPR), and mass loss rate (MLR) values of PP/IFR20/OMMT3 sample was much lower than those of PP/IFR system without OMMT. According to the char structure analysis, the flame retardant mechanism was mainly contributed to the synergistic effect of OMMT and IFRs on promoting the forming more compact and continuous char layer, which increased the barrier action to heat, oxygen, and flammable gases. Furthermore, the TGA data further demonstrated that OMMT could efficiently increase the thermal stability of PP/IFR composites. Thus, this work provides a cost-efficient method to prepare high-performance PP composites and expands their applications in the field of flame retardancy required.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 4","pages":"713 - 721"},"PeriodicalIF":2.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High thermal reliability melamine resin phase change microcapsules based on chain extender modification: design, preparation and application evaluation of thermal insulation coatings 基于扩链剂改性的高热可靠性三聚氰胺树脂相变微胶囊：保温涂料的设计、制备及应用评价

IF 2.2 4区化学

Colloid and Polymer Science Pub Date : 2025-01-20 DOI: 10.1007/s00396-025-05380-0

Baolian Zhang, Dongrui Ji, Qi Fang, Hongbin Zhao, Yan Wang, Yan Ma

{"title":"High thermal reliability melamine resin phase change microcapsules based on chain extender modification: design, preparation and application evaluation of thermal insulation coatings","authors":"Baolian Zhang, Dongrui Ji, Qi Fang, Hongbin Zhao, Yan Wang, Yan Ma","doi":"10.1007/s00396-025-05380-0","DOIUrl":"10.1007/s00396-025-05380-0","url":null,"abstract":"<div><p>Architectural coatings containing phase change microcapsules are promising for building energy conservation and other applications, but their limited thermal reliability hinders broader use and development. In this study, a modified melamine resin phase change microcapsule with enhanced stability and high heat storage capacity was designed and prepared via in-situ polymerization. The core material was 28<sup>#</sup> paraffin, the wall material was methyl etherified melamine resin prepolymer (MMF), and the chain extenders were tetraethylenepentamine (TEPA) and polyetheramine (D230). The chemical structure, surface morphology, melt permeability, and thermal stability of the microcapsules were characterized and analyzed. The results indicated that the optimal performance of the microcapsules was achieved under the following conditions: a reaction temperature of 65 °C, a core-wall ratio of 1.5:1, and a modifier ratio of TEPA: D230 = 1:1.5. The product appeared as a powder, with a core material content of 86.25%, a phase change enthalpy of 97.21 J/g, and a 50.03% reduction in melt permeability. The microcapsules also exhibited high thermal stability. The coating containing 12.5% microcapsules demonstrated the best overall performance. In a simulated indoor environment, the modified coating system prolonged the cooling time from 35 °C to 20 °C by 37.02%.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"303 4","pages":"679 - 692"},"PeriodicalIF":2.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0