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Antibacterial starch-based melt spinning resin and application thereof

A melt-spinning, starch-based technology, applied in the manufacture of rayon, conjugated rayon, textiles and papermaking, etc., can solve the problem of not explaining the origin of polyols and oligomers, being easily contaminated by harmful bacteria, and unable to judge practicality. problems, such as low production cost, small footprint, and energy saving

Inactive Publication Date: 2019-08-16
苏州回蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with other polymer resin materials, since PVA resin cannot be melt-spun, its application range is greatly limited.
[0004] Chinese patent CN102776597 relates to a high-strength and high-modulus polyvinyl alcohol fiber and its melt spinning method, which can be melt-extruded, but the PVA powder uses water as a plasticizer and adds polyols, which is still a solution spinning method in essence, but uses water as the Solvent, and is produced and unstable due to the low boiling point of water
At present, the prior art mentions the modification of polyols and oligomers, but a large amount of water is still used as a solvent, and the origin of polyols and oligomers is not explained, and its practicability cannot be judged
[0005] Due to the natural biodegradability of starch-based resins and fibers, they are also easily contaminated by harmful bacteria in actual use. Therefore, the development of starch-based resins with antibacterial properties has great practical significance

Method used

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  • Antibacterial starch-based melt spinning resin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 10 parts of pentaerythritol, 15 parts of 1,4-butanediol, 10 parts of diethylene glycol, 5 parts of PEG2000, and 25 parts of deionized water into the reaction kettle and stir evenly. Add 30 parts of propylene oxide dropwise , and add 0.02 parts of phosphoric acid catalyst to carry out the addition reaction, the rotation speed is 80-100 rpm, the stirring time is 100-120 minutes, the temperature is 60-85 ° C, and the addition reaction product 1 is obtained.

[0029] 20 parts of 400 mesh cornstarch, 10 parts of PVA0599, 30 parts of PVA1299, 20 parts of addition reaction product 1, 5 parts of glycerol, 5 parts of polyglycerin, 5 parts of deionized water, 1-butyl-3-methyl 2.0 parts of imidazotetrafluoroborate, 1.0 parts of dodecyl sultaine, anatase TiO 2 2.0 parts, 0.45 parts of zinc stearate, 1.0 parts of oleic acid amide, DuPont FSO-100 / 1.5 parts, antioxidant 1010 / 0.4 parts, antioxidant 300 / 0.5 parts, SiO 2 0.2 parts and 0.5 parts of graphene dispersion liquid were p...

Embodiment 2

[0033] Add 25 parts of glycerol monoacetate, 25 parts of glyceryl diacetate, 20 parts of glycerol triacetate, 15 parts of glycerin, and 15 parts of polyglycerin into the reaction kettle and stir evenly, add 0.02 parts of phosphoric acid catalyst for addition reaction, The rotation speed is 80-100 rpm, the stirring time is 100-120 minutes, and the temperature is 60-85° C. to obtain the addition reaction product 2.

[0034] 20 parts of tapioca starch of 450 mesh, 20 parts of PVA0899. 3-Methylimidazine chloride, 1.5 parts, 1.0 parts of dodecyl sultaine, 0.05 parts of 1-vinyl 3-ethylimidazine sniffing salt, anatase TiO 2 2.0 parts, zinc stearate 0.45 parts, solution amide 1.5 parts, DuPont FS-31 1.5 parts antioxidant 1010 0.6 parts, antioxidant 300 0.3 parts, SiO 2 0.5 parts and 1.0 parts of graphene dispersion liquid were respectively put into a high-speed mixer, heated while stirring, pre-plasticized at 40°C-120°C / 40min, left for 24 hours, and then put into a granulator for g...

Embodiment 3

[0037]With 30 parts of 600 mesh potato starches, 15 parts of PVA0599, 15 parts of PVA2099, 30 parts of the addition reaction product of Example 2, 5 parts of glycerol, 5 parts of polyethylene glycol 2000, 5 parts of deionized water, 1- 1.5 parts of butyl-3-methylimidazine tetrafluoroborate, 1.5 parts of 1-butyl-3-methylimidazine chloride, 1.0 parts of dodecyl sultaine, anatase TiO 2 2.0 parts, 0.1 parts of 1-vinyl 3-ethyl imidazole sniffing salt, 0.45 parts of zinc stearate, 1.0 parts of oleic acid amide, 1.5 parts of DuPont FSO-100, 0.6 parts of antioxidant 1010, 0.3 parts of antioxidant 300 Parts, SiO 2 0.5 parts and 3.0 parts of graphene dispersion liquid were respectively put into a high-speed mixer, heated while stirring, pre-plasticized at 40°C-120°C / 40min, left for 24 hours, and then put into a granulator for granulation. A starch-based melt-spinning resin is obtained.

[0038] Use this resin to carry out trial spinning on a single-head spinning machine. The melting...

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Abstract

The invention relates to antibacterial starch-based melt spinning resin and an application thereof. The antibacterial starch-based melt spinning resin is prepared from components in parts by weight asfollows: 15-65 parts of starch, 35-85 parts of PVA, 20-45 parts of a plasticizer, 1.0-2.5 parts of a decomposition inhibitor, 0.5-5 parts of a fluorocarbon activator, 1.0-10 parts of a processing aidand 0.1-5 parts of a graphene dispersion solution. The starch-based resin system is modified, the graphene dispersion solution is added, so that graphene is uniformly dispersed in the starch-based resin, the initial thermal decomposition temperature of the resin is effectively improved, the melt index is increased, small-molecular plasticizer migration is inhibited, and the obtained starch-basedmelt spinning resin has good antibacterial property, antibacterial starch-based fiber is prepared with a melt spinning method, and the obtained antibacterial starch-based fiber contains uniformly dispersed nano graphene and can be well combined with the starch-based resin, thereby endowing the starch-based fiber with good antibacterial property.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to an antibacterial starch-based melt-spinning resin and its application. Background technique [0002] In recent years, with the improvement of people's awareness of environmental protection, it is imminent to develop biodegradable packaging materials to solve the white pollution caused by the discarded ordinary plastic packaging. Starch-based plastics have attracted extensive attention due to their biodegradability and recycling of raw materials. If the melt spinning process can be realized, its application range will be greatly expanded. At present, there is no report about the melt spinning of starch-based resin and the compound system of starch and PVA. [0003] Due to its good biodegradability, PVA (polyvinyl alcohol) has broad application prospects in solving the white pollution caused by the waste of plastic products. However, compared with other polymer resin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/10D01F8/18D01F1/10
CPCD01F1/10D01F1/103D01F8/10D01F8/18
Inventor 李芳丽朱春英张兆洋孙文奇张万虎
Owner 苏州回蓝环保科技有限公司
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