BeDensi P는 플라스틱 재료와 성형 재료의 벌크 밀도를 정확하게 측정하기 위해 설계된 장비입니다. 이 장비는 국제 표준 ISO <60>: 플라스틱 - 지정된 깔때기에서 부을 수 있는 재료의 겉보기 밀도 측정에 따른 엄격한 제조 표준을 준수합니다. 세심한 설계를 갖춘 BeDensi P는 확립된 국제 프로토콜에 따라 재료 특성을 정밀하게 평가하고자 하는 산업 분야에서 신뢰할 수 있는 도구로 사용됩니다.
특징 및 장점
- ● 측정: 벌크 밀도
- ● 테스트 샘플: 플라스틱 및 성형 재료
- ● ISO 및 GB/T 표준 준수
개요
1. 측정: 벌크 밀도
BeDensi P는 다음 두 가지 재료의 벌크 밀도를 정확하게 측정하도록 설계된 장비입니다. 플라스틱 재료 정확한 측정을 위해 설계된 장비입니다. 이 장비는 국제 표준 ISO <60>에 따른 엄격한 제조 표준을 준수합니다: 플라스틱 - 지정된 깔때기에서 부을 수 있는 재료의 겉보기 밀도 측정. 세심한 설계를 갖춘 BeDensi P는 재료의 특성을 정밀하게 평가하고자 하는 산업 분야에서 신뢰할 수 있는 도구로 사용됩니다. 특성을 정밀하게 평가하고자 하는 업계에 신뢰할 수 있는 도구입니다.
2. 측정 절차
- 벌크 밀도
3. 응용 예제
다양한 플라스틱 시료의 벌크 밀도 탐색.
국제 표준을 준수하는 BeDensi P는 PMMA, PET, PP, PVC 및 PE 플라스틱 분말의 벌크 밀도를 측정하는 데 매우 효과적인 도구입니다. 세심한 3주기 평가를 통해 각 플라스틱 유형을 종합적으로 평가하여 플라스틱 산업 내 품질 관리 및 공정 개선에 필수적인 귀중한 데이터를 제공합니다. 정밀도와 적응성이 뛰어나 다양한 플라스틱 분말의 벌크 밀도 특성에 대한 심층적인 통찰력을 얻을 수 있는 필수 도구로, 재료 가공 및 제조 분야에서 정보에 입각한 의사 결정을 내릴 수 있도록 도와줍니다.
| 샘플 | 결과(g/cm³) | |||
| No.1 | No.2 | No.3 | 평균 | |
| PMMA (폴리메틸 메타크릴레이트) | 0.7061 | 0.7218 | 0.7117 | 0.7132 |
| PET (폴리에틸렌 테레프탈레이트) | 0.8433 | 0.8217 | 0.8393 | 0.8348 |
| PP (폴리프로필렌) | 0.8875 | 0.8973 | 0.8666 | 0.8838 |
| PE (폴리에틸렌) | 0.9629 | 0.9775 | 0.9732 | 0.9712 |
| PVC (폴리염화비닐) | 1.2784 | 1.2997 | 1.2223 | 1.2338 |
Citations
- Bettersizer 2600
Functional redundancy as an indicator for evaluating functional diversity of macrobenthos under the mussel raft farm near Gouqi Island
DOI: 10.1016/j.aquaculture.2023.740024 Read Article
Zhejiang Ocean University | 2024Biological traits analysis (BTA) helps to evaluate the effects of different environmental variables on the traits-based functional composition of macrobenthos. However, research on functional traits of macrobenthos under mussel farming is limited. We investigated the spatial and temporal response of the benthic system in terms of taxonomic and functional diversity to environmental variables of farming and natural stressors resulting from suspended mussel farming near Gouqi Island of eastern China Sea. The functional traits of macrobenthic assemblages under mussel farming were characterized by “medium adult body size”, “vermiform body form”, “high flexibility”, “infauna”, “semi-motile”, “gonochoristic”, “surface deposit-feeders”, “carnivores”, “semi-motile burrowers”, and “tube-dwellers”. Functional redundancy was stable in response to mussel farming stresses among seasons, whereas species diversity showed efficient to evaluate natural variables. Functional diversity was significantly affected by farming stressors rather than natural variables, Further analysis using multivariate methods together with continuous monitoring were highlighted to evaluate the impacts of mussel farming. Our results reinforce the importance of macrobenthic species and functional traits analysis to evaluate human stresses driven impacts in offshore ecosystems. By analysing the environmental variables with different sources, independently, we concluded the main effects of human pressures on macrobenthic community. Such distinction could be particularly effective to isolate variable environmental descriptors and evaluate their effects on functional diversity, making the current approach promising for the evaluation of ecological effects of anthropogenic stressors in aquaculture areas. - Bettersizer 2600
Degradation characteristics and utilization strategies of a covalent bonded resin-based solid amine during capturing CO2 from flue gas
DOI: 10.1016/j.seppur.2023.125621 Read ArticleChina University of Petroleum | 2024In this study, various types of degradation as well as attrition which are possibly encountered in a circulating fluidized bed temperature swing adsorption (CFB-TSA) process, were conducted experimentally to evaluate the stability of a resin-based solid amine sorbent. Other characterizations methods, such as elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR) etc. were applied to further reveal the degradation mechanisms. The results showed that thermal degradation occurs from 140–160 °C due to the decomposition of amine group. The CO2-induced degradation occurs from a higher temperature of 160–180 °C accompanied by the production of urea. Hydrothermal stability is good below 130 °C, but the ionic impurities in steam crystalized on particle surface can accelerate the degradation. Oxidative degradation is the most harmful, which starts at a lower temperature of 70–80 °C with the formation of aldehyde. The existence of H2O in atmosphere can alleviate the oxidative and CO2-induced degradations. The employed sorbent has a very low attrition index of 0.05, which is 1–2 orders lower than typical commercial fluidized bed catalysts. Based on the results of stability evaluation, some design suggestions for proper utilization of this sorbent or other similar resin-based sorbents have been provided in an industrial CFB-TSA process.
- Bettersizer 2600
De-branching of starch molecules enhanced the complexation with chitosan and its potential utilization for delivering hydrophobic compounds
DOI: 10.1016/j.foodhyd.2023.109498 Read ArticleShihezi University | 2024The current study aimed to prepare the complexes between debranched-waxy corn starch and chitosan polymers (DBS-CS), and then investigated their corresponding structural characteristics, rheological property and potent application in Pickering emulsion. The results indicated that the existence of chitosan significantly inhibited starch short-range molecular rearrangement for all DBS-CS samples, which was manipulated by both debranching treatment and chitosan content. Interestingly, this is the first study to reveal that the outstanding peak at 1.8 ppm in 1H NMR spectrum for sample DBS-CS was gradually shifted towards a lower-field region following an increased chitosan content. Moreover, the debranching treatment shifted the crystallinity pattern from A-type to B-type and the relative crystallinity of DBS-CS decreased gradually with the increased content of CS. All samples had a pseudoplastic fluid and shear-thinning behavior with an enhanced shear resistance following the complexation. The DBS-CS was applied in a Pickering emulsion for showing a greater emulsifying stability and a lower gel strength than native NS-CS prepared emulsion. Importantly, the encapsulation ability of curcumin in the DBS-CS emulsion was significantly improved, followed by an increase of 15.45% for its corresponding bioavailability compared to the control. Therefore, this study might highlight a potential carrier for delivering the bioactive substances in a green pattern. - Bettersizer 2600
Heat-induced aggregation behavior of wheat gluten after adding citrus pectin with different esterification degree
DOI: 10.1016/j.foodhyd.2023.109420 Read ArticleGansu Agricultural University | 2024Wheat gluten aggregation during heat treatment is beneficial to the final quality of gluten-based products. Exogenous pectin can affect gluten aggregation. However, the effect of pectin with different degrees of esterification on the heat-induced aggregation behavior of gluten and its possible mechanism are still unclear. Thus, the heat-induced aggregation behavior of gluten after adding pectin with different esterification degree was studied in this study. When the temperature was raised from 25 °C to 95 °C, pectin affected gluten aggregation and was related to the degree of esterification. Specifically, the results of rheological properties and particle size indicated that low-ester pectin improved the viscoelasticity of gluten and promoted gluten aggregation. Thermal properties revealed that enthalpy of gluten added with low-ester pectin (37%) increased from 92.96 J/g to 95.40 J/g during heating process. Structurally, the fluorescence intensity and surface hydrophobicity of gluten added with low-ester pectin (37%) were lower than those added with high-ester pectin (73%). In addition, low-ester pectin (37%) significantly increased the disulfide bond content (from 15.31 μmol/g to 18.06 μmol/g) and maintained β-sheet content of gluten compared with gluten alone at 95 °C, indicating that low-ester pectin was more likely to induce gluten aggregation. However, scanning electron microscope showed that the gluten added with low-ester pectin (46%) exhibited a denser network structure at 95 °C than that added with low-ester pectin (37%). These results will provide a theoretical base for the regulation of gluten aggregation and the quality of gluten-based products by pectin with different esterification degree.
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