Poly(propylene)/aspen/liquid polybutadiene composites: maximization of impact strength, tensile and modulus by statistical experimental design

Abstract

A systematic study of the effect of concentration of maleated poly(propylene) (MAPP), dicumyl peroxide (DCP), polyisobutadiene isocyanate (PBNCO) and fiber content on the mechanical properties of aspen-poly(propylene)(PP) composite was undertaken with the objective to maintain or increase the impact strength without losing tensile strength reinforcement. Using STAGRAPHIC Plus it was possible to determine the optimum concentration of additives and to maximize both the impact as well as tensile properties well above that of pure PP.

Biocomposites From Switchgrass and Lignin Hybrid and Poly(butylene succinate) Bioplastic: Studies on Reactive Compatibilization and Performance Evaluation

“…The addition of 5% ITPB into the pMDI compatibilized composite decreased the tensile strength which obtained nearly same value as obtained by the composites without any additive and was nearly 16% lower than that of PBS blend. Researchers have reported improvement in the tensile strength due to the incorporation of ITPB. Formation of urethane linkages between the OH group of biofiber and the NCO group of ITPB was considered as the cause of improvement in the reported literature.…”

“…Compatibilizers such as maleic anhydride grafted polymers, titanates, silanes, and isocyanates are used to improve the performance of composites. Isocyanate compatibilizers have been used in polymer composites in order to improve material properties . Reactive compatibilization using polybutadiene and free radical initiator also has resulted in improved morphology and tensile impact strength of the polymer blends .…”

Some properties of composites based on vulcanized liquid polybutadiene matrix and inorganic particulate fillers

“…For the concept of reinforcement, the filler must improve compound properties such as tensile strength or abrasion resistance 1, 2. Currently, various inorganic materials such as calcium carbonate, mica, and so forth are frequently used as reinforcing particulate fillers in composite materials and their positive effect on mechanical properties of resulting composites is well documented in the literature 3–8…”

“…1,2 Currently, various inorganic materials such as calcium carbonate, mica, and so forth are frequently used as reinforcing particulate fillers in composite materials and their positive effect on mechanical properties of resulting composites is well documented in the literature. [3][4][5][6][7][8] Highly promising materials applicable as polymeric matrices of composite materials are the crosslinked elastomers based on low-molecular weight polybutadiene rubbers. Their hydrocarbon chains are very resistant against hydrolysis, acids, alkalies, and aqueous salt solutions.…”

Sulphur‐vulcanized polybutadiene as a matrix in glass fiber‐reinforced composite materials

“…Composite materials created by combining two ore more components achieve properties, which could not be attained with the separate components. Generally, reinforcing fillers have a positive influence on mechanical properties2−5 and reduce the cost of final products 6. Currently, various inorganic materials such as talc, clay, calcium carbonate, mica, and glass fiber are frequently utilized as reinforcing fillers in composite materials 7−10.…”