Coloring masterbatch for cold hot water plastic pipe fittings
A plastic pipe and coloring masterbatch technology, applied in the field of plastic additives, can solve problems such as uneven dispersion of antioxidants and failure to meet industry standards, and achieve the goal of increasing oxidation induction period, improving dispersibility, and improving dispersion and wetting effects Effect
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Embodiment 1
[0018] A coloring masterbatch for black PE pipe fittings, consisting of the following raw materials by mass percentage: 25% linear low-density polyethylene, 22% linear polyethylene, 50% carbon black, 2.5% antioxidant, 0.5% functional additive %.
[0019] The linear low-density polyethylene in this embodiment is a powdery resin with a melt mass flow rate greater than 45 g / 10 min and a density less than 0.926, and the model is LLDPE 2605.
[0020] The linear polyethylene in this embodiment is a granular resin with a melt mass flow rate of 1.7-2.3 g / 10 min, and the model of the linear polyethylene in this embodiment is LDPE7042.
[0021] The average particle size of the carbon black in this example is 10-25 mm, and the oil absorption value is ≤7*10 -5 m 3 / kg, ash content <0.5%, thermal weight loss <0.5%, production process is tank method.
[0022] The antioxidant in the present embodiment is SONOX 225, and wherein primary antioxidant 1010 accounts for 47% of antioxidant total...
Embodiment 2
[0025] A coloring masterbatch for gray PPR pipe fittings, consisting of the following raw materials by mass percentage: 40.7% linear low density polyethylene, 25% linear polyethylene, 19.42% carbon black, 0.6% antioxidant, 0.75% functional additive %, GM68 green 0.05%, titanium dioxide 13.48%.
[0026] The linear low-density polyethylene in this embodiment is a powdery resin with a melt mass flow rate greater than 45 g / 10 min and a density less than 0.926, and the model is LLDPE 2605.
[0027] The linear polyethylene in this embodiment is a granular resin with a melt mass flow rate of 1.7-2.3 g / 10 min, and the model of the linear polyethylene in this embodiment is LDPE7042.
[0028] The average particle size of the carbon black in this example is 10-25 mm, and the oil absorption value is ≤7*10 -5 m 3 / kg, ash content <0.5%, thermal weight loss <0.5%, production process is tank method.
[0029] The antioxidant in the present embodiment is SONOX 225, wherein primary antioxida...
Embodiment 3
[0032] A kind of masterbatch for coloring gray PPR pipes and fittings, composed of the following raw materials by mass percentage: 28% linear low density polyethylene, 27% linear polyethylene, 7.9% carbon black, 0.6% antioxidant, 0.5% functional additives %, titanium dioxide 36%.
[0033] The linear low-density polyethylene in this embodiment is a powdery resin with a melt mass flow rate greater than 45 g / 10 min and a density less than 0.926, and the model is LLDPE 2605.
[0034] The linear polyethylene in this embodiment is a granular resin with a melt mass flow rate of 2.3 g / 10 min, and the model of the linear polyethylene in this embodiment is LDPE7042.
[0035] The average particle size of the carbon black in this example is 15 mm, and the oil absorption value is less than or equal to 7*10 -5 m 3 / kg, ash content <0.5%, thermal weight loss <0.5%, production process is tank method.
[0036] The antioxidant in the present embodiment is SONOX 225, and wherein main antioxid...
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