Category: 15625-89-5

Huang, Minzhong published the artcileThree dimensional -printing of polymer-derived SiCN ceramic matrix composites by digital light processing, Recommanded Product: Trimethylolpropane triacrylate, the publication is Journal of the European Ceramic Society (2022), 42(13), 5476-5483, database is CAplus.

In this study, we present a DLP 3D-printing strategy for the fabrication of SiCN ceramic matrix composites (CMCs). The polysilazane-based preceramic polymer containing inert fillers was UV-cured into a green body and then converted to SiCN CMCs after pyrolysis. The introduced fillers (Si₃N₄ particles and Si₃N₄ whiskers) as reinforcements are well dispersed in the matrix, which can not only effectively reduce the linear shrinkage and weight loss, but also greatly improve the mech. properties of the SiCN CMCs. The bending strength of the SiCN CMCs reinforced with 10 wt% Si₃N₄ whiskers (without surface polished) reached 180.7 ± 15.6 MPa. Furthermore, the effect of fillers content on microstructure and porosity of the SiCN CMCs are discussed, and it was found that the excessive fillers led to increased pore defects and decreased continuity of the matrix, thereby reducing the mech. properties of the SiCN CMCs. This strategy provides a promising ceramic manufacturing technique to fabricate polymer-derived CMCs with complex-shaped and high-performance for potential demanding applications.

Journal of the European Ceramic Society published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Recommanded Product: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Feng, Wanru published the artcileTransformation of Al-CDC from 3D crystals to 2D nanosheets in macroporous polyacrylates with enhanced CH₄/N₂ separation efficiency and stability, Name: Trimethylolpropane triacrylate, the publication is Chemical Engineering Journal (Amsterdam, Netherlands) (2022), 132285, database is CAplus.

Development of materials with high efficiency and long-life cycles for CH₄/N₂ separation is of importance for coal-bed methane purification Herein, a composite was prepared by in-situ growing the specific aluminum-based metal-organic framework (MOF) with trans-1,4-cyclohexanedicarboxylicacid as ligand (Al-CDC) on the internal macroporous surface of polyacrylates (PA). Due to the surface-induced low-energy-barrier orientation crystallization, the morphol. of Al-CDC was transformed from three-dimensional (3D) crystals to two-dimensional (2D) nanosheets, forming ultrathin films with higher adsorption efficiency and lower diffusion barrier. As a result, the adsorption efficiency can be increased by 1.73 times compared with bulk Al-CDC and the selectivity of CH₄/N₂ (50/50, volume/volume) mixed gas is 13.75, which is the highest value reported so far. Furthermore, the hydrophobic feature of PA enhanced the water and recycling stability of composite, providing promising adsorbent for coal-bed methane purification using pressure swing adsorption process.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Name: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wu, Kaiyun published the artcileOne-pot efficient preparation of microcapsules based on photopolymerization for self-healing coatings, Name: Trimethylolpropane triacrylate, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2022), 128660, database is CAplus.

Self-healing microcapsules are currently one of the most promising functional materials due to their excellent performance. The preparation of self-healing microcapsules via photopolymerization is quite attractive considering its efficiency and environmental-friendliness. However, the influence of the preparation process and shell-formation materials on the formation and the morphol. of microcapsule have not been systematically researched. This work combines photopolymerization technol. and solvent evaporation to prepare microcapsule, and comprehensively explores the influence of process conditions and shell-formation materials on the microcapsules. Two preparation processes, UV-SR (photopolymerization first and then solvent removal) and SR-UV (solvent removal first and then photopolymerization), have been employed to prepare microcapsules. The SR-UV method is more suitable for preparing microcapsules with high core content and spherical core-shell morphol. The particle size distribution of microcapsules is related to the shear strength during initial emulsion preparation, and the size of microcapsules can be effectively controlled. At the same time, the effect of the shell-formation materials is also systematically studied. The method is universal for the preparation of microcapsules based on com. UV-curable prepolymers, but the introduction of UV-curable monomers may lead to the transformation of microcapsules from core-shell structure to multi-core structure. Microcapsules can be uniformly dispersed in water-borne epoxy, and the coating based on microcapsules exhibits excellent self-healing properties.

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C8H10O2, Name: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Gong, Jian published the artcileDigital light processing of SiC ceramic from allylhydridopolycarbosilane with limited acrylate monomers, COA of Formula: C15H20O6, the publication is Ceramics International (2022), 48(13), 18468-18474, database is CAplus.

Digital light processing of ceramic precursor was used to prepare SiC rich ceramic parts in this study. In order to achieve appropriate light curing rate, the ceramic precursor allylhydropolycarbosilane (LHBPCS) was mixed with acrylate monomers tripropylene glycol diacrylate and trimethylolpropane triacrylate. The content of acrylate monomers was optimized to increase the ceramic yield and reduce the shrinkage during pyrolysis. According to the results of thermogravimetric anal. and photolithog. experiment, 15 wt% acrylate monomers was appropriate. 330 mJ/cm2 UV irradiation dose was selected for every layer with a thickness of 25 μm, and green bodies with different shapes were successfully printed. During pyrolysis, these printed parts changed from transparent yellow to black accompanying uniform shrinkage. At 1000 °C, the shrinkage was 24.0-26.0%, and crack-free SiC rich ceramic parts with d. of 2.11 g/cm3 and chem. formula of SiC1.31O0.26 were obtained.

Ceramics International published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, COA of Formula: C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wu, Hao published the artcileDesign of High-Humidity-Proof Hierarchical Porous P-ZIF-67(Co)-Polymer Composite Materials by Surface Modification for Highly Efficient Volatile Organic Compound Adsorption, COA of Formula: C15H20O6, the publication is Industrial & Engineering Chemistry Research (2022), 61(10), 3591-3600, database is CAplus.

The ubiquitous water vapor in industrial gas is a challenge for volatile organic compound (VOC) adsorbents. Herein, we have developed a strategy to improve the hydrophobicity and water stability of ZIF-67(Co) through internal and external modification. Through amine modification of the carrier surface rich in nanoscale roughness, the shape and size of ZIF-67(Co) are changed. ZIF-67(Co) is uniformly anchored on the macroporous surface of polyacrylates (PA) through interface coordination, forming a unique hierarchical porous structure. Compared with the original ZIF-67(Co), the toluene adsorption efficiency of ZIF-67(Co)@PA is increased by 2.75 times at 298 K and at a toluene partial pressure of P/P₀ = 0.005. Furthermore, to inhibit undesired water adsorption due to the rich defect sites, hydrophobically modified ZIF-67(Co)@PA (yielding P-ZIF-67(Co)@PA) has also been prepared, which exhibits a slight decrease in toluene adsorption and maintains the advantages of low water vapor adsorption and high hydrophobicity to improve the water stability of ZIF-67(Co).

Industrial & Engineering Chemistry Research published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C8H8O3, COA of Formula: C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Liang, Shaofeng published the artcileRecyclable, UV-Blocking, and Radiative Cooling Multifunctional Composite Membranes, HPLC of Formula: 15625-89-5, the publication is ACS Omega (2022), 7(29), 25244-25252, database is CAplus and MEDLINE.

It is well known that UV radiation can cause human health problems and that energy consumption can lead to human survival problems. Here, we prepared a composite membrane that can block UV radiation as well as reduce energy consumption. Carbon dots (CDs) and acrylates were prepared from xylose and epoxidized soybean oil as biomass feedstocks, resp., and the composite membrane was prepared by a self-assembly strategy. The first layer of the membrane is composed of CDs and epoxy resin. Its main function is not only to weaken UV rays and the aggregation-induced quenching effect of CDs but also to reduce the absorption of UV rays by the second layer of the membrane. The second layer consists of barium sulfate (BaSO₄) and acrylate. Compared to TiO₂ (3.2 eV), BaSO₄ (~6 eV) has a higher electronic band gap, which reduces the absorption of UV light by the membrane. The composite membrane exhibits excellent UV-blocking and radiative cooling performance, shielding 99% of UV rays. In addition, the membrane can reduce 4.4°C in radiative cooling tests, achieving a good cooling effect. Finally, the recyclability of the BaSO₄/acrylate membrane is discussed, and 95% recovery rate provides sustainable utilization of the membrane. The composite membrane is expected to be popularized and used in low latitudes and areas with high temperature and high UV radiation near the equator.

ACS Omega published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, HPLC of Formula: 15625-89-5.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Sun, Bingyan published the artcileFully cross-linked UV-induced peelable acrylic PSA prepared from a dual curable castor oil based urethane acrylate oligomer for wafer dicing, Category: esters-buliding-blocks, the publication is Progress in Organic Coatings (2022), 106680, database is CAplus.

For UV-induced peelable PSA used in the wafer dicing process, improving the peel performance can effectively increase the process reliability and the yield of subsequent packaging process. In this work, a NCO-containing castor oil-based urethane acrylate oligomer called CO-PUB with dual curable functions (UV-induced polymerization and NCO/OH reaction) was obtained by partially sealing a castor oil-based urethane oligomer with hydroxyethyl acrylate. Fourier transform IR spectroscopy (FTIR) and NMR spectrometer (NMR) results indicated that CO-PUB was successfully prepared CO-PUB, OH-containing acrylic copolymer, multifunctional acrylate monomer and photo-initiator were used to construct a UV-induced peelable adhesive for silicon wafer dicing. The results showed that NCO groups in CO-PUB underwent the NCO/OH reaction with the acrylic copolymer to obtain a vinyl pendant cross-linked acrylic copolymer. The peel strength of this peelable adhesive before UV irradiation could exceed 20 N/25 mm. After UV irradiation, the unsaturated vinyl bonds contained in it were copolymerized with the multifunctional acrylate monomer to form a fully cross-linked adhesive film and the peel strength could be reduced to below 1 N/25 mm. Compared with UV-induced peelable adhesives prepared by other reported curing agents, the adhesive prepared from CO-PUB reduced UV dose required for curing. The crosslinking degree of cured adhesive film was also increased and the gel content was up to 95%. The residual adhesive after peeling off could be reduced to about 0.32%. In addition, CO-PUB used renewable castor oil as polyol and did not need to add any organic solvent during the preparation process, providing a new idea for the green preparation of UV-induced peelable adhesive with excellent performances.

Progress in Organic Coatings published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C3H8N2S, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Pan, Zhenxue published the artcileHigh strength and microwave-absorbing polymer-derived SiCN honeycomb ceramic prepared by 3D printing, Application of Trimethylolpropane triacrylate, the publication is Journal of the European Ceramic Society (2022), 42(4), 1322-1331, database is CAplus.

The combination of 3D printing technol. and polymer-derived ceramic route provides an attractive strategy to construct microwave-absorbing honeycomb with fine structure through flexible process. However, preparation of honeycomb ceramics with both excellent mech. and microwave-absorbing properties is still challenging. Herein, SiCN honeycomb ceramic was fabricated by stereolithog. from UV curable polymeric precursor consisting of polysilazane and multifunctional acrylates. By optimizing the multifunctional acrylates and its ratio, the decomposition of organic moiety and the ceramization process of precursor are matched, rendering the achieved ceramic with high compactness. The hardness and specific compressive strength of SiCN honeycomb ceramic reach as high as 14.3 GPa and 333.3 MPa/(g·cm3), resp. Meanwhile, at low pyrolysis temperature, the copolymerized acrylate and polysilazane that formed during curing process was converted to free-carbon nanodamins in-situ, which endows SiCN honeycomb ceramic with the min. reflection loss of -49.0 dB, namely microwave absorption rate over 99.99%.

Journal of the European Ceramic Society published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Application of Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Deng, Lin published the artcileNovel chalcone-based phenothiazine derivative photoinitiators for visible light induced photopolymerization with photobleaching and good biocompatibility, Formula: C15H20O6, the publication is Progress in Organic Coatings (2022), 106859, database is CAplus.

Two novel visible light photoinitiators 4-(10-methyl-10H-phenothiazin-3-yl) but-3-en-2-one (PBO) and (1E,4E)-1,5-bis(10-methyl-10H-phenothiazin-3-yl)-1,4-pentadien-3-one (BMPPO) were successfully designed and synthesized. PBO and BMPPO have broad absorption range from 350 to 500 nm with the maximum absorption wavelength at 400 nm and 440 nm resp. Three-component photoinitiating system of BMPPO/iodonium/amine was developed for free radical polymerization of acrylates. The results demonstrated that the photoinitiating system displayed rapid polymerization and high final vinyl group conversions under the irradiation of UV-LED (365 nm), blue LED (440) nm and solar light resource. Moreover, photopolymerization kinetics was studied by real-time FT-IR spectrum, the double band conversion was achieved up to 90% for BMPPO. The photocuring mechanism was identified via steady state photolysis and ESR spin-trapping experiments The possible photoinduced mechanism of PBO and BMPPO in the presence of a co-initiator occurred through electron transfer. In addition, BMPPO possesses rapid photobleaching and good biocompatibility performance tested by photoinduced degradation and cytotoxicity experiments resp., which exhibited that BMPPO has potential for light-color coatings and food packaging field.

Progress in Organic Coatings published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Formula: C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ulriksdotter, J. published the artcileAllergic contact dermatitis caused by dipropylene glycol diacrylate in the Omnipod insulin pump, Application of Trimethylolpropane triacrylate, the publication is British Journal of Dermatology (2022), 186(2), 334-340, database is CAplus and MEDLINE.

Cases of allergic contact dermatitis (ACD) caused by isobornyl acrylate (IBOA) in the Omnipod insulin pump have previously been reported. To present three cases of patients with ACD caused by a new allergen in the pump, and results from chem. analyses. Omnipod pumps from different batches were analyzed by gas chromatog.-mass spectrometry. Aimed testing, with the department’s medical device (MD) series and substances identified in the pump including dipropylene glycol diacrylate (DPGDA) at 0·01% and 0·1% in petrolatum (pet.), was performed. Patch testing also included extracts from the device, the adhesive patch as is, and allergens from baseline series. All patients tested pos. to 0·1% DPGDA in pet., and two patients addnl. to a 0·01% concentration DPGDA was found in extracts of the Omnipod pumps brought by the patients. An Omnipod pump from an earlier batch contained tripropylene glycol diacrylate, IBOA, N,N-dimethylacrylamide, di(ethylene glycol)ethyl ether acrylate (DEGEA) but no DPGDA. One of the patients reacted pos. to all of these allergens except DEGEA, which was not tested. When suspecting ACD to MDs, DPGDA at 0·1% in pet. should be tested. The contents of Omnipod have changed over time. Patch testing with updated test series and relevance assessment of pos. reactions is a delicate task. Children, with lifelong use of MDs, risk contracting many allergies with potential cross-allergies. A question should be raised as to whether these low mol. weight acrylates should be used at all in devices constantly worn on the skin.

British Journal of Dermatology published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C10H18O, Application of Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics