A Plastic material

In this study, a thermosetting benzoxazine was successfully prepared from environmentally friendly sources to be used as an adhesive. The phenolic component used for the synthesis of the benzoxazine monomer is cardanol derived from the cashew nutshell, while the amine fractions are terephthalamide, which is a product of the amination process of used polyethylene terephthalate plastic bottles (PET).

11p xuanphongdacy06 18-09-2024 3 1   Download

This research project explores the negative environmental impacts of anthropogenic debris by investigating these found materials within the medium of contemporary jewellery objects. Contemporary jewellery objects are a powerful artistic medium. We can wear jewellery on our bodies and carry it with us. Jewellery can sit on or through the body, and at the same time extend beyond our bodies. Jewellery objects can resonate their own space, to be watched, observed publicly or privately, inviting the wearer or voyeur to think, to enquire, to remember and to investigate.

509p runthenight04 02-02-2023 8 2   Download

The numerical wedge splitting tests show that in the case of brittle materials, the lower post-failure stress limit defined in the concrete damaged plasticity model resulted in energy consumption for crack propagation exceeding the defined fracture energy (114% higher in the case of a brittleness number of 4.4).

9p guernsey 28-12-2021 12 0   Download

Both the epoxy strength and internal compressive strength were employed as factors in a compound law to numerically estimate the low-temperature tensile strength. This work presents a systematic analysis for changes in the CFRP material properties at low temperatures.

7p tamynhan4 06-09-2020 7 1   Download

In the current context of eco-pollution, the substitute of conventional plastics with bioplastics is a big confront. On account of that, a non-growth associated PHB production study was conducted using Zobellella species under submerged fermentation process. As a result, Zobellella species showed the ability to accumulate 2.2g/L of PHB at pH 8. 0, temperature 37oC, salt concentration 2% in modified growth medium containing vitamins. Then, primary structural characterization of extracted polymer was conducted by FTIR analysis. The high intense peak was obtained at 1720.

7p nguaconbaynhay6 24-06-2020 38 3   Download

The purpose of this work is to make computer aided engineering (CAE) analysis of mono parabolic leaf spring and to see the effect of change of material in the optimized leaf. A mono steel leaf spring and a mono leaf spring made of composite material have been selected for this comparative analysis.

8p tohitohi 19-05-2020 28 1   Download

Plastic material made with the following contents: Differentiate plastic and rubber, place of origin, application of rubber, medical, thermoplastic, plastic elastomers. To better grasp the contents invite you to consult the documentation.

21p danhnakg 23-09-2016 54 8   Download

The technological conditions of obtaining the polylactic acid-Vietnamese cassava starch blend on the mix-brabender were investigated. The optimal conditions were: temperature 160o C, reaction time 6 minutes, screw speed 45 r/min., initial material ratio in weight percentage PLA80- PEG10-TB20. Polyethyleneglycol (PEG) as a plasticizer, PN-47 as a distribution agent was used. It showed that the optimal starch content was 20 wt%. Increase in starch content lead to increase in water absorbability and weight loss of the materials.

7p uocvong01 24-09-2015 76 9   Download

Choose the word or phrase that best completes the sentence. Circle A, B, C or D 1. People … to enter the house need protecting from the weather. a. wait b. waiting c. to wait d. waited 2. The post-and-lintel structure is… of straight members. a. composed b. included c. consisted d. used 3. Bitumen can be dented or scratched easily because it is… a. elastic b. plastic c. flexible d. soft 4. The… of the block material is 500kg/m3. a. density b. stress c. mass d. illumination 5. The cross-section of a cone is… in shape. a. circular b. triangular c. rectangular d.

2p leaf_90 03-07-2013 140 17   Download

Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics to calculate the driving force on a crack and those of experimental solid mechanics to characterize the material's resistance to fracture.In modern materials science, fracture mechanics is an important tool in improving the mechanical performance of materials and components.

56p beobobeo 01-08-2012 95 13   Download

Modified release coatings John E.Hogan SUMMARY Relevant aspects of the composition and performance of modified release coatings are considered in this chapter. Initially, the basic characteristics of multiparticulate systems are described and comparisons are made with the performance of whole tablets intended for modified release. The properties and effects of the polymers and plasticizers which are used in modified release coatings are illustrated with examples from the literature. This further develops the basic treatment of these materials provided in Chapter 2.

30p bigbaby87 01-09-2010 81 10   Download