Study on modification and applications of recycling PA6 in badminton nets

doi:10.19491/j.issn.1001-9278.2025.09.018

Abstract

Abstract:

In this study， a novel compound additive （DSAE） was developed through physical blending of decanedioic acid bis（benzoylhydrazide）（DSA） and erucamide， which was incorporated into recycled PA6 （rPA6） via melt blending to fabricate high⁃performance composites. Comprehensive characterization revealed that erucamide preserved DSA's molecular structure while DSA functioned as an effective heterogeneous nucleating agent， elevating the crystallization temperature， crystallinity degree， and crystallization rate of rPA6. The DSAE formulation further enhanced these effects through improved matrix dispersion. Both additives significantly improved tribological and mechanical properties， with DSAE demonstrating optimal performance： 28.4 % reduction in friction coefficient， along with 51.6 % and 16 % increases in notched impact strength and flexural strength， respectively， compared to commercial badminton net material. The rPA6/DSAE composite achieved an exceptional balance of wear resistance， stiffness， and toughness， making it particularly suitable for high⁃dynamic⁃load applications. This work pioneers a sustainable “net⁃to⁃net” recycling strategy， transforming waste fishing nets into high⁃value sports equipment materials while establishing a circular economy paradigm for engineering plastics.

Key words: polyamide6, recycled, modification, badminton net, applied research

CLC Number:

TQ323

NIU Zhong, WU Zunhong, DONG Haijun. Study on modification and applications of recycling PA6 in badminton nets[J]. China Plastics, 2025, 39(9): 115-120.

Figures/Tables 10

Fig.1. FTIR spectra of the smples

Fig.2. The non⁃isothermal crystallization curves of the composite

样品编号	T_c/℃	T_m/℃	ΔH_m/J·g^-1	X_c/%
rPA6	181.88	220.28	61.24	26.6
rPA6/EA	182.89	220.21	64.56	28.1
rPA6/DSA	184.49	220.49	66.87	29.1
rPA6/DSAE	186.75	220.71	69.82	30.4

Tab.1. Non⁃isothermal crystallization parameters of the composite

Fig.3. The isothermal crystallization curves of the composite at 205 ℃

Fig.4. The relative crystallinity of the composite varies with crystallization time

Fig.5. The isothermal crystallization kinetics curves of the composite

样品名称	T_c/℃	n	K	t_1/2/min
rPA6	205	2.27	3.7×10⁃³	9.6
rPA6/EA	205	2.25	5.0×10⁃³	8.5
rPA6/DSA	205	2.31	6.4×10⁃³	7.3
rPA6/DSAE	205	2.07	1.9×10⁃²	5.5

Tab.2. Isothermal crystallization kinetics parameters of the composites

Fig.6. SEM of the composites

Fig.7. The coefficient of friction of the composite

Fig.8. The mechanical properties of the composite

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