Traditionally polyester production is done in a batch reactor equipped with a separation column for batch distillation. A promising alternative for the intensification of this process is reactive distillation. In this paper, a reactive distillation model is developed for the synthesis of an unsaturated polyester process. The simulation results are compared with the industrial batch reactor outp...

The well-known key problem with concrete is that its compressive strength and the compression modulus are insufficient for a variety of applications. Our polymer concrete (PC) consists of an unsaturated polyester resin as the polymeric matrix, silica sand as the inorganic aggregate, plus atactic polypropylene (PP) fibers. A further property improvement can be achieved by gamma irradiation and w...

The materials of the given article are devoted to problem solution associated with one processing plastic waste methods by adding various fillers in order obtain final product for thermal insulation manufacture. researches were conducted using UPR (unsaturated polyester resin) samples made EPS (expanded polystyrene) and crushed recycled polyethylene from greenhouse film types wood carpentry wor...

In this study, the effect of usage additives at different initiator ratios as well fillers types and grain distributions on resin consumption compressive strength polyester matrix composites were investigated. Orthophthalic unsaturated (UP) was used a matrix. The (methyl ethyl ketone peroxide) ratio 1.0%, 1.5%, 2.0% accelerator (cobalt octoate) 1.0% by weight to start polymerization. Silica, ba...

It was aimed to produce GRP pipes, having less resin consumption and higher mechanical properties by changing the grain distribution of fillers used in core region. American Foundry Society (AFS) fineness number currently pipe production, determined Fuller equation, exponent which is 0.8 (F0.8), were study. Chopped glass fibers, unsaturated polyester resin, silica filler used. manufactured thre...

Proof of concept for the in vivo bacterial production of a polyester resin displaying various customizable affinity protein binding domains is provided. This was achieved by engineering various protein binding domains into a bacterial polyester-synthesizing enzyme. Affinity binding domains based on various structural folds and derived from molecular libraries were used to demonstrate the potent...