Highly cold-resistant and toughening color masterbatch and preparation method thereof
A technology of cold-resistant toughening and cold-resistant toughening agent, applied in the field of color masterbatch, can solve the problems of restricting the promotion and application of polypropylene, low notched impact strength, large shrinkage rate, etc., and achieves improved processing rheology, obvious toughening effect, The effect of increasing rigidity
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Embodiment 1
[0051] A high cold-resistant and toughened color masterbatch, comprising the following raw materials in parts by weight:
[0052] 45 parts polypropylene resin
[0053] Toner 32 parts
[0054] Dispersant 2 parts
[0055] 1 part of cold-resistant toughening agent;
[0056] Wherein, the polypropylene is a mixture of copolymerized polypropylene and homopolypropylene with a weight ratio of 1:1.4;
[0057] The copolymerized polypropylene is a copolymerized polypropylene whose melt index is 10g / 10min under the test conditions of 230°C and 2.16KG; homopolypropylene.
[0058] The cold-resistant toughening agent is a mixture composed of an amide-based β-crystal nucleating agent and a dicarboxylate-based β-crystal-form nucleating agent at a weight ratio of 1:1.2.
[0059] The dispersant is a mixture of polyethylene wax and spreading oil in a weight ratio of 1:1.
[0060] It also includes 1 part of coupling agent, which is a mixture of titanate coupling agent and aluminate coupling ...
Embodiment 2
[0074] A high cold-resistant and toughened color masterbatch, comprising the following raw materials in parts by weight:
[0075] Polypropylene resin 49 parts
[0076] Toner 7 parts
[0077] Dispersant 3.5 parts
[0078] 2 parts of cold-resistant toughening agent;
[0079] Wherein, the polypropylene is a mixture of copolymerized polypropylene and homopolypropylene with a weight ratio of 1:1.6;
[0080] The copolymerized polypropylene is a copolymerized polypropylene with a melt index of 30g / 10min under the test conditions of 230°C and 2.16KG; the homopolymerized polypropylene is 35g / 10min with a melt index of 230°C and 2.16KG homopolypropylene.
[0081] The cold-resistant toughening agent is a mixture composed of an amide-based β-crystal nucleating agent and a dicarboxylate-based β-crystal-form nucleating agent at a weight ratio of 1:1.4.
[0082] The dispersant is a mixture of polyethylene wax and spreading oil in a weight ratio of 2:1.5.
[0083] It also includes 1.5 p...
Embodiment 3
[0097] A high cold-resistant and toughened color masterbatch, comprising the following raw materials in parts by weight:
[0098] Polypropylene resin 53 parts
[0099] Toner 42.5 parts
[0100] Dispersant 4.5 parts
[0101] 3 parts of cold-resistant toughening agent;
[0102] Wherein, the polypropylene is a mixture of copolymerized polypropylene and homopolypropylene at a weight ratio of 1:1.8;
[0103] The copolymerized polypropylene is a copolymerized polypropylene whose melt index is 50g / 10min under the test conditions of 230°C and 2.16KG; the homopolymerized polypropylene has a melt index of 50g / 10min under the test conditions of 230°C and 2.16KG homopolypropylene.
[0104] The cold-resistant toughening agent is a mixture composed of an amide-based β-crystal nucleating agent and a dicarboxylate-based β-crystal-form nucleating agent at a weight ratio of 1:1.5.
[0105] The dispersant is a mixture of polyethylene wax and spreading oil in a weight ratio of 2.5:2.
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