Improvement in mechanical properties and thermal stability of solvent‐based pressure‐sensitive adhesives based on triazine heterocyclic monomer

Chen, Jun Hua; Zhao, Qiang; Wang, Ying; Luo, Fubin; Shen, Lu; Wu, Kun; Li, Liang; Lu, Mangeng

doi:10.1002/app.43281

Cited by 7 publications

(7 citation statements)

References 33 publications

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“…The first method to enhance the thermal stability of acrylic PSA is to improve the cohesion force through molecular design. A typical example is to suppress the mobility of acrylic polymer chains by a crosslinking reaction [ 8 , 9 , 10 , 11 ]. Chen et al designed a triazine heterocyclic monomer and copolymerized it with an acrylic monomer to prepare a crosslinked PSA tape to improve its heat resistance [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…A typical example is to suppress the mobility of acrylic polymer chains by a crosslinking reaction [ 8 , 9 , 10 , 11 ]. Chen et al designed a triazine heterocyclic monomer and copolymerized it with an acrylic monomer to prepare a crosslinked PSA tape to improve its heat resistance [ 9 ]. Pang et al dispersed reactive nanosilica to acrylic PSA and increased thermal stability by crosslinking through UV irradiation [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Heat Resistance of Acrylic Pressure-Sensitive Adhesive by Incorporating Silicone Blocks Using Silicone-Based Macro-Azo-Initiator

et al. 2020

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To improve the heat resistance of acrylic-based pressure-sensitive adhesive (PSA), silicone-block-containing acrylic PSAs (SPSAs) were synthesized using a polydimethylsiloxane (PDMS)-based macro-azo-initiator (MAI). To evaluate the heat resistance of the PSA films, the probe tack and 90° peel strength were measured at different temperatures. The acrylic PSA showed that its tack curves changed from balanced debonding at 25 °C to cohesive debonding at 50 °C and exhibited a sharp decrease. However, in the case of SPSA containing 20 wt% MAI (MAI20), the balanced debonding was maintained at 75 °C, and its tack value hardly changed with temperature. As the MAI content increased, the peel strength at 25 °C decreased due to the microphase separation between PDMS- and acryl-blocks in SPSA, but the shear adhesion failure temperature (SAFT) increased almost linearly from 41.3 to 122.8 °C. Unlike stainless steel substrate, SPSA showed improved peel strength on a polypropylene substrate due to its low surface energy caused by PDMS block. Owing to the addition of 20 wt% silicone-urethane dimethacrylate oligomer and 200 mJ/cm2 UV irradiation dose, MAI20 showed significantly increased 90° peel strength at 25 °C (548.3 vs. 322.4 gf/25 mm for pristine MAI20). Its heat resistance under shear stress assessed by shear adhesion failure test (SAFT) exhibited raising in failure temperature to 177.3 °C when compared to non-irradiated sample.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Heat Resistance of Acrylic Pressure-Sensitive Adhesive by Incorporating Silicone Blocks Using Silicone-Based Macro-Azo-Initiator

et al. 2020

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“…1‐Allylhydantoin and PFA might be mainly grafted on PHB surfaces rather than on PBAT. 1‐Allylhydantoin belongs to N‐heterocyclic monomer, which has good thermal stability . Perfluorooctyl acrylate contains large numbers of C–F bonds, which have high bond energy .…”

Section: Resultsmentioning

confidence: 99%

“…26 The which has good thermal stability. 27 Perfluorooctyl acrylate contains large numbers of C-F bonds, which have high bond energy. 28,29 Therefore, there was a dramatic increase on the thermal performance of electrospun PHB/PBAT fibrous membranes after grafting AH and PFA.…”

Section: Thermal Analysismentioning

confidence: 99%

Preparation and characterization of PHB/PBAT–based biodegradable antibacterial hydrophobic nanofibrous membranes

Lin

Fan

et al. 2017

Polymers for Advanced Techs

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In this study, polyhydroxybutyrate/poly(butyleneadipate-co-terephthalate) (PHB/PBAT) nanofibrous membranes were produced by electrospinning the blends of biodegradable PHB and PBAT. The antibacterial hydrophobic nanofiber membranes were obtained by grafting 1-allylhydantoin and perfluorooctyl acrylate onto the PHB/PBAT membranes. The prepared nanofibrous membranes were chlorinated with chlorine bleach and characterized by scanning electron microscopy, Fourier transform infrared, and thermogravimetric analysis. The chlorinated nanofibrous membranes exhibited efficient antimicrobial activity against Escherichia coli O157:H7 (ATCC 43895) and Staphylococcus aureus (ATCC 6538) with 6.08 and 5.78 log reduction, respectively. The contact angle of this antibacterial membrane was 123.1°± 1.9°. The treated membranes showed good stability and durability towards UV-A light exposure and storage. To effectively block the entry of water and moisture and slow down food spoilage, food packaging materials need to be hydrophobic.Hydrophobic agents including wax, aluminum soap, zirconium soap, | ElectrospinningEight percent (wt) of PHB and PBAT (PHB/PBAT, 1:1, w/w) were dissolved in a mixture of CHCl 3 and DMF (CHCl 3 /DMF, 10:1, w/w).Electrospinning was performed at 20 kV with a flow rate of 1.5 mL·h −1 at ambient temperature. The distance from tip to collector was 15 cm. The electrospun fibrous membranes were collected on a rotating drum covered with an aluminum foil at a speed of 50 rpm. | Grafting AH and PFAThe mechanism scheme of AH and PFA grafting on PHB/PBAT surfaces is shown in Scheme 1. Initially, AH (1, 2, 3, 4, 5, 7, and 9 wt%) and AIBN (10 wt% of AH) were dissolved in ethanol solution in an ultrasonic bath for 20 minutes. Ethanol solution was at a bath ratio of 50:1 on the weight of fibrous membranes. Then, a certain amount of PHB/PBAT fibrous membranes was immersed in the above solution in a water bath at 75°C for 3 hours. Subsequently, fibrous membrane was extracted in ethanol for 24 hours using a Soxhlet extractor.Perfluorooctyl acrylate (3, 5, 7, 9, 11, and 13 wt%), AIBN (10 wt% of PFA), and OP-10 (2 wt% of PFA) were dissolved in ethanol solution by ultrasonic vibration for 20 minutes at room temperature. The PHB/PBAT fibrous membranes were added into the solution in a water bath at 75°C for 3 hours. Subsequently, fibrous membrane was extracted in ethanol for 24 hours using a Soxhlet extractor. | Chlorination and titrationThe PHB/PBAT-AH/PFA fibrous membranes were immersed in a 0.05% of NaOCl solution, pH 7, at ambient temperature for 1 hour to become an antimicrobial material. Then, the chlorinated fibrous membranes were washed thoroughly with deionized water and dried at 45°C for 1 hour to remove the unbound chlorine. The loaded active chlorine content on the membranes was measured by the modified iodometric/thiosulfate titration method. The chlorine weight percent of the membranes was calculated according to the equation below:where Cl + (%) is the weight percent of active chlorine on the sample; N and V are...

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“…There are many kinds of adhesives. The main types of adhesives are solvent-based type, hot-melt type and water-based type [15][16][17][18][19][20][21][22][23][24][25][26][27][28] . Solvent based adhesives use volatile organic compounds as solvents, such as benzene and toluene.…”

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confidence: 99%

Study on a new type of environment-friendly polymer and its preliminary application as soil consolidation agent during tree transplanting

Wang

Wei

Yang

et al. 2021

Sci Rep

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Transplanting trees with rhizospheric soil is an important way to facilitate tree survival in the process of landscaping and reforestation. Traditional way to prevent looseness of rhizospheric soil is forming soil balls around the roots with bags, boxes or rope wrapping, which is cumbersome, laborious and easy to break. This study is aimed to develop a new type of degradable environment-friendly polymer as soil consolidation agent to facilitate tree transplanting. In this paper, the KGM/CA/PVA ternary blending soil consolidation agent was prepared by using Konjac glucomannan (KGM), chitosan (CA) and polyvinyl alcohol (PVA) as raw materials. Through the verification and evaluation, the clay and sandy soil can be consolidated and formed into soil balls by the ternary blend adhesive, which was convenient for transportation. The preliminary application of the ternary blend adhesive in the transplanting process of sierra salvia, Japanese Spindle (Euonymus japonicus) and Juniperus sabina ‘Tamaricifolia’ confirmed that the application of soil consolidation agent can effectively solve the problem that the root ball of seedling is easily broken in the process of transplant. And the application of soil consolidation agent has no adverse effect on the growth of transplanted seedlings. The research and development of ternary blending soil consolidation agent and its preliminary application in seedling transplanting will provide a new solution to solve the problem of soil ball breakage in the process of seedling transplanting. This is an important stage in the development of new seedling transplanting technology. Therefore, the research and development of soil consolidation agent is of great significance.

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Improvement in mechanical properties and thermal stability of solvent‐based pressure‐sensitive adhesives based on triazine heterocyclic monomer

Cited by 7 publications

References 33 publications

Enhanced Heat Resistance of Acrylic Pressure-Sensitive Adhesive by Incorporating Silicone Blocks Using Silicone-Based Macro-Azo-Initiator

Enhanced Heat Resistance of Acrylic Pressure-Sensitive Adhesive by Incorporating Silicone Blocks Using Silicone-Based Macro-Azo-Initiator

Preparation and characterization of PHB/PBAT–based biodegradable antibacterial hydrophobic nanofibrous membranes

Study on a new type of environment-friendly polymer and its preliminary application as soil consolidation agent during tree transplanting

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