Preparation and rheological studies on the solvent based acrylic pressure sensitive adhesives with different crosslinking density

et al. 2019

Soft Matter

Section: Introductionmentioning

confidence: 99%

An ultra-durable icephobic coating by a molecular pulley

Zhuo

et al. 2019

Soft Matter

“…The position and length of the LVR indicate the ability of the sample to resist flow as well as its stability over a range of stresses (6). When the stress was greater than the LVR, the G* values for all the grades decreased significantly, indicating that structures formed had been destroyed, resulting in decreased stability.…”

Section: Rheological Testingmentioning

confidence: 99%

Rheological Characterization of Cataplasm Bases Composed of Cross-Linked Partially Neutralized Polyacrylate Hydrogel

Zhang

et al. 2014

AAPS PharmSciTech

Abstract. Viscoelasticity is a useful parameter for characterizing the intrinsic properties of the cross-linked polyacrylate hydrogel used in cataplasm bases. The aim of this study was to investigate the effects of various formulation parameters on the rheological characteristics of polyacrylate hydrogel. The hydrogel layers were formed using a partially neutralized polyacrylate (Viscomate ™ ), which contained acrylic acid and sodium acrylate in different copolymerization ratios, as the cross-linked gel framework. Dihydroxyaluminum aminoacetate (DAAA), which produces aluminum ions, was used as the crosslinking agent. Rheological analyses were performed using a "stress amplitude sweep" and a "frequency sweep". The results showed that greater amounts of acrylic acid in the structure of Viscomate as well as higher concentrations of DAAA and Viscomate led to an increase in the elastic modulus (G′). However, greater amounts of acrylic acid in the structure of Viscomate and higher concentrations of DAAA had an opposite on the viscous modulus (G″); this might be owing to higher steric hindrance. The results of this study can serve as guidelines for the optimization of formulations for cataplasms.

“…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.…”

mentioning

confidence: 99%

“…Solvent based adhesives use volatile organic compounds as solvents, such as benzene and toluene. These solvents will directly volatilize to pollute the environment and harm the health of human body [15][16][17][18][19] . For the environmental protection our soil consolidation agent should not pollute the soil and groundwater and neither impair normal growth of the seedlings.…”

mentioning

confidence: 99%

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

Wei

Yang

et al. 2021

Sci Rep

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.