Moreover, the unconfined compressive strength (UCS), resilience modulus, splitting strength, and frost resistance performance of the specimens decreased with increase of the amount of crushed clay brick aggregate.
However, the addition of 5 wt.% Laponite nanoclay to the formulations considerably increased the compressive modulus and resilience of the hydrogels; swollen nanocomposite networks with compressive modulus and toughness values of up to 67 kPa and 200 kJ m−3, respectively, could then be obtained.
We determined differences in compressive modulus, yield strength, resilience, fracture strength, and strain at fracture between PMMA coupons (n = 5), PMMA coupons incorporating vancomycin 10 wt% (n = 5), VPA 3400) 10 wt% (n = 5), PEG 3000 -Acrl 5 wt% (n = 5), PEG 3000 -Acrl 10 wt% (n = 5), and VA-2 10 wt% (n = 3) using the one-way ANOVA in combination with the Tukey test for pairwise comparisons.
Mechanical testing of antibiotic-loaded bone cements (Table 1) confirms that adding vancomycin at 10 wt% decreases compressive modulus, yield strength, resilience, and fracture strength, which is consistent with previous reports [ 12, 26, 35]; for example, Klekamp et al. [ 35] showed that, in fatigue tests, loading vancomycin at 7.5 wt% decreased the number of cycles to failure by 50%.
We asked whether polymerizable derivatives of vancomycin might be useful to (1) surface modify Ti-6Al-4V andoy and to surface/bulk modify PMMA bone cement to prevent Staphylococcus epidermidis biofilm formation and (2) whether the process altered the compressive modulus, yield strength, resilience, and/or fracture strength of cement copolymers.
It quantified the physical properties of sponges (density, fibre width, fibre length, absorbency, and water retention efficiency) and their mechanical properties (firmness, compression modulus, compressive strength, tensile strength, elastic limit, elastic strain, modulus of elasticity, and modulus of resilience).
The results indicated that the sintering temperature ranging from 1500 to 1600 °C was suitable for yielding mullite fiber matrix porous ceramics which had a low thermal conductivity (0.19 0.22 W/m K), a relatively high compressive strength (3 13 MPa) and a high resilience (66 70%) for applications in the thermal insulators and high-temperature elastic seal field.
A high porosity (74.2 78.3%), a low thermal conductivity (0.231 0.248 W/m K), a relatively high compressive strength (1.3 3.2 MPa) and a high rebound-resilience (90 98%) measured from samples indicate that this fibrous ceramics is a potential material for the high-temperature sealing.
The hydrogels exhibit a high modulus (~ 700 kPa), compressive strength (45 MPa at ~ 90% strain), good resilience, and self-healing.
