Degradable antifouling thermoplastic micro-airbag polymer elastomer material and preparation method thereof

Abstract

The invention relates to a degradable antifouling thermoplastic micro-airbag polymer elastomer material and a preparation method thereof. The preparation method specially comprises the following steps: (1) feeding a polymer raw material, a nucleating agent and an environment-friendly degradable organic perfluorinated material from a feed opening in the front end of a twin-screw extruder, feeding afoaming agent from a feeding opening in the middle section of the twin-screw extruder, after all the raw materials are hot-melted and mixed sufficiently, feeding the mixture into a static mixer for further homogenizing, and then performing pressure control and quantitative transporting by a melt pump; and (2) enabling a hot melt pumped out from the melt pump to enter an underwater granulating chamber for granulating through a die head, separating the granulated hot melt from process water, and screening and drying the obtained particles, thereby forming a target product. Compared with the prior art, the performances of the antifouling property, the dirt resistance, the oil resistance, the contamination prevention property, the aesthetic appearance, and good tactile impression of the material can be effectively realized, and the degradable antifouling thermoplastic micro-airbag polymer elastomer material is especially suitable for being applied in the fields such as shoe materials andfood package.

Description

technical field

[0001] The invention relates to the field of polymer material preparation, in particular to a degradable antifouling thermoplastic micro-airbag polymer elastomer material and a preparation method thereof. Background technique

[0002] Thermoplastic polymer elastic materials are widely used in the manufacture of production and living facilities, equipment, tools and consumables. With the development of society to meet the requirements of environmental protection, energy saving and consumption reduction, the demand for lightweight materials has become more and more urgent. Thermoplastic polymer elastic materials have also begun a large number of lightweight experiments and verifications and continued to promote their applications. However, when thermoplastic foamed polymer elastomers are directly applied to direct consumer goods, without modification and special preparation, the conductivity of thermoplastic foamed polymers is generally greater than 10 to the 1...

Examples

preparation example Construction

[0064] The preparation method of degradable antifouling thermoplastic micro-airbag polymer elastomer material may preferably comprise the following steps:

[0065] (1) Feed polymer raw materials, nucleating agents and environmentally friendly degradable organic perfluorinated materials from the feed port at the front end of the twin-screw extruder, and feed the foaming agent from the feed port in the middle of the twin-screw extruder, so that the raw materials are heated After the melting and mixing are sufficient, it enters the static mixer for further homogenization, and then is pressure-controlled and quantitatively transported by the melt pump;

[0066] (2) The hot melt pumped out by the melt pump enters the underwater pelletizing chamber through the die head to be pelletized, and is taken out by the process water for separation, and the obtained pellets are screened and dried to form the target product.

[0067] More preferably as the preferred technical solution above, t...

Embodiment 1

[0076] According to the above as figure 1 The technical process prepares the thermoplastic micro-airbag polymer elastomer material of the present invention according to the following raw material formula and process conditions:

[0077] Among them, molecular weight M w In 150K~300K (here K represents the unit thousand) polyether thermoplastic polyurethane, the addition ratio is 75% (weight percentage, the same below), the molecular weight M w For 50K-100K polyether thermoplastic polyurethane, the addition ratio is 20%, the addition amount of environmentally friendly and degradable organic perfluorinated materials is 2.5%, and the foaming agent is CO 2 , the addition amount is 2%, and the nucleating agent is calcium carbonate, and the addition amount is 0.5%. Twin-screw extruder length-to-diameter ratio L / D=40, screw heating temperature 160-220°C, static mixer temperature 140-180°C, melt pump inlet pressure 100-150bar, process water pressure about 12bar, just entering the und...

Embodiment 2

[0080] According to the above as figure 1 The technical process prepares the thermoplastic micro-airbag polymer elastomer material of the present invention according to the following raw material formula and process conditions:

[0081] Among them, molecular weight M w In 300K~500K polyether thermoplastic polyurethane, the addition ratio is 70% (weight percentage, the same below), and the molecular weight is M w For 150K-250K polyether thermoplastic polyurethane, the addition ratio is 18.1%, the addition amount of environmentally friendly and degradable organic perfluorinated materials is 10%, and the foaming agent is N 2 , the addition amount is 1.4%, and the nucleating agent is carbon black, and the addition amount is 0.5%. Twin-screw extruder length-to-diameter ratio L / D=56, screw heating temperature 160-220°C, static mixer temperature 140-180°C, melt pump inlet pressure 100-150bar, process water pressure about 6bar, just entering the underwater cutting The temperature o...

technical field

[0001] The invention relates to the field of polymer material preparation, in particular to a degradable antifouling thermoplastic micro-airbag polymer elastomer material and a preparation method thereof. Background technique

[0002] Thermoplastic polymer elastic materials are widely used in the manufacture of production and living facilities, equipment, tools and consumables. With the development of society to meet the requirements of environmental protection, energy saving and consumption reduction, the demand for lightweight materials has become more and more urgent. Thermoplastic polymer elastic materials have also begun a large number of lightweight experiments and verifications and continued to promote their applications. However, when thermoplastic foamed polymer elastomers are directly applied to direct consumer goods, without modification and special preparation, the conductivity of thermoplastic foamed polymers is generally greater than 10 to the 1...

Examples

preparation example Construction

[0064] The preparation method of degradable antifouling thermoplastic micro-airbag polymer elastomer material may preferably comprise the following steps:

[0065] (1) Feed polymer raw materials, nucleating agents and environmentally friendly degradable organic perfluorinated materials from the feed port at the front end of the twin-screw extruder, and feed the foaming agent from the feed port in the middle of the twin-screw extruder, so that the raw materials are heated After the melting and mixing are sufficient, it enters the static mixer for further homogenization, and then is pressure-controlled and quantitatively transported by the melt pump;

[0066] (2) The hot melt pumped out by the melt pump enters the underwater pelletizing chamber through the die head to be pelletized, and is taken out by the process water for separation, and the obtained pellets are screened and dried to form the target product.

[0067] More preferably as the preferred technical solution above, t...

Embodiment 1

[0076] According to the above as figure 1 The technical process prepares the thermoplastic micro-airbag polymer elastomer material of the present invention according to the following raw material formula and process conditions:

[0077] Among them, molecular weight M w In 150K~300K (here K represents the unit thousand) polyether thermoplastic polyurethane, the addition ratio is 75% (weight percentage, the same below), the molecular weight M w For 50K-100K polyether thermoplastic polyurethane, the addition ratio is 20%, the addition amount of environmentally friendly and degradable organic perfluorinated materials is 2.5%, and the foaming agent is CO 2 , the addition amount is 2%, and the nucleating agent is calcium carbonate, and the addition amount is 0.5%. Twin-screw extruder length-to-diameter ratio L / D=40, screw heating temperature 160-220°C, static mixer temperature 140-180°C, melt pump inlet pressure 100-150bar, process water pressure about 12bar, just entering the und...

Embodiment 2

[0080] According to the above as figure 1 The technical process prepares the thermoplastic micro-airbag polymer elastomer material of the present invention according to the following raw material formula and process conditions:

[0081] Among them, molecular weight M w In 300K~500K polyether thermoplastic polyurethane, the addition ratio is 70% (weight percentage, the same below), and the molecular weight is M w For 150K-250K polyether thermoplastic polyurethane, the addition ratio is 18.1%, the addition amount of environmentally friendly and degradable organic perfluorinated materials is 10%, and the foaming agent is N 2 , the addition amount is 1.4%, and the nucleating agent is carbon black, and the addition amount is 0.5%. Twin-screw extruder length-to-diameter ratio L / D=56, screw heating temperature 160-220°C, static mixer temperature 140-180°C, melt pump inlet pressure 100-150bar, process water pressure about 6bar, just entering the underwater cutting The temperature o...

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