Modified injection-molding zipper and production technology thereof
A production process and modified technology, which is applied in the field of zipper manufacturing, can solve the problems of unsatisfactory single-teeth strength and single-teeth displacement strength of zippers, and achieves avoiding easy brittle cracking and falling off, good hardness and toughness, and low energy consumption Effect
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Embodiment 1
[0046] Copolyoxymethylene, polyurethane elastomer, diphenylmethane diisocyanate MDI, BASF Chimassorb 2020 light stabilizer, Irganox1010 (ciba) and acrylic hydrazine are mixed to obtain a blended material; the quality of the copolyoxymethylene is 5000g; the polyurethane The content of the elastomer is 8wt% of the content of the polyoxymethylene copolymer; the content of the diphenylmethane diisocyanate MDI is 0.3wt% of the content of the polyoxymethylene copolymer; the BASF Chimassorb 2020 light stabilizer is 0.2%; the Irganox1010 (ciba) is 0.2wt% of the content of the polyoxymethylene copolymer; the acrylic acid hydrazine is 0.15wt% of the content of the polyoxymethylene copolymer.
[0047] After the blended material is obtained, the blended material is stirred and dried in a mixer for 30-60 minutes, and then granulated and extruded on a BP-8177-ZHB POM twin-screw extruder granulator, and then plastic injection molding is used for injection molding , to obtain modified injecti...
Embodiment 2
[0056] Copolyoxymethylene, polyurethane elastomer, diphenylmethane diisocyanate MDI, BASF Chimassorb 2020 light stabilizer, Irganox1010 (ciba) and acrylic hydrazine are mixed to obtain a blended material; the quality of the copolyoxymethylene is 5000g; the polyurethane The content of the elastomer is 4wt% of the content of the polyoxymethylene copolymer; the content of the diphenylmethane diisocyanate MDI is 0.2wt% of the content of the polyoxymethylene copolymer; the BASF Chimassorb 2020 light stabilizer is 0.2wt%; the Irganox1010 (ciba) is 0.2wt% of the content of the polyoxymethylene copolymer; the acrylic hydrazine is 0.15wt% of the content of the polyoxymethylene copolymer.
[0057] After the blended material is obtained, the blended material is stirred and dried in a mixer for 30-60 minutes, and then granulated and extruded on a BP-8177-ZHB POM twin-screw extruder granulator, and then plastic injection molding is used for injection molding , to obtain modified injection ...
Embodiment 3
[0066]Copolyoxymethylene, polyurethane elastomer, diphenylmethane diisocyanate MDI, BASF Chimassorb 2020 light stabilizer, Irganox1010 (ciba) and acrylic hydrazine are mixed to obtain a blended material; the quality of the copolyoxymethylene is 5000g; the polyurethane The content of the elastomer is 4wt% of the content of the polyoxymethylene copolymer; the content of the diphenylmethane diisocyanate MDI is 0.3wt% of the content of the polyoxymethylene copolymer; the BASF Chimassorb 2020 light stabilizer is the content of the polyoxymethylene copolymer 0.15wt%; the Irganox1010 (ciba) is 0.15wt% of the content of the polyoxymethylene copolymer; the acrylamide is 0.2wt% of the content of the polyoxymethylene copolymer.
[0067] After the blended material is obtained, the blended material is stirred and dried in a mixer for 30-60 minutes, and then granulated and extruded on a BP-8177-ZHB POM twin-screw extruder granulator, and then plastic injection molding is used for injection m...
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