Flexible thermoplastic film and product thereof
A thermoplastic starch, polar technology, applied in the field of composition of flexible polyolefin base film, can solve the problems of increasing production cost, reducing line speed, poor processability of renewable polymers, etc., to reduce energy input and greenhouse gas Emissions, skin comfort, effect of reducing global warming effect
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Embodiment 1
[0130] 17% thermoplastic starch masterbatch (BL-F, produced by Biograde, Nanjing, China), 38% linear low density polyethylene (LLDPE) (melt flow rate is 1.0 g / 10 min, density is 0.918 g / cc, grade: 118W, supplied by SABIC), 38% low-density polyethylene (LDPE) (melt flow rate: 2.8g / 10min, density: 0.925g / cc, grade: Q281, supplied by SINOPEC Shanghai, Shanghai , China) and a mixture of 7% white masterbatch (Shanghai Ngai Hing Plastic Materials Co., Ltd.) were fed to a single-screw extruder blown film machine. The screw diameter is 150 mm and the length / diameter ratio is 30 / 1. The mold gap is 1.8mm.
[0131] Other process conditions are listed in the table below:
[0132]
Embodiment 2
[0134] 37% thermoplastic starch masterbatch (BL-F, produced by Biograde, Nanjing, China), 28% linear low density polyethylene (LLDPE) (melt flow rate is 1.0 g / 10 min, density is 0.918 g / cc, grade: 118W, supplied by SABIC), 28% low-density polyethylene (LDPE) (melt flow rate: 2.8g / 10min, density: 0.925g / cc, grade: Q281, supplied by SINOPEC Shanghai, Shanghai , China) and a mixture of 7% white masterbatch (Shanghai Ngai Hing Plastic Materials Co., Ltd.) were fed to a single-screw extruder blown film machine. The screw diameter is 150 mm and the length / diameter ratio is 30 / 1. The mold gap is 1.8mm.
Embodiment 3
[0136] 57% thermoplastic starch masterbatch (BL-F, produced by Biograde, Nanjing, China), 18% linear low density polyethylene (LLDPE) (melt flow rate is 1.0 g / 10 min, density is 0.918 g / cc, grade: 118W, supplied by SABIC), 18% low-density polyethylene (LDPE) (melt flow rate: 2.8g / 10min, density: 0.925g / cc, grade: Q281, supplied by SINOPEC Shanghai, Shanghai , China) and a mixture of 7% white masterbatch (Shanghai Ngai Hing Plastic Materials Co., Ltd.) were fed to a single-screw extruder blown film machine. The screw diameter was 150 mm and the length / diameter ratio was 30 / l. The mold gap is 1.8mm.
[0137] Blow molding machine conditions:
[0138] The process conditions of the blown film extruder are as follows:
[0139]
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