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Biodegradable PVA melt-spinning resin and application thereof

A technology of melt spinning and biodegradation, which is applied in the direction of melt spinning, conjugated synthetic polymer rayon, rayon manufacturing, etc. Instability and other problems, to achieve the effect of low production cost, small footprint, and low investment in equipment

Inactive Publication Date: 2019-08-02
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

[0005] 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 to add polyols, which still belongs to the solution spinning method in essence, but uses water as a solvent , and because of the low boiling point of water, the production and instability
[0006] 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

Method used

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  • Biodegradable PVA melt-spinning resin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 15 parts of pentaerythritol, 15 parts of 1,4-butanediol, 10 parts of diethylene glycol, and 25 parts of deionized water into the reaction kettle, stir evenly, add 35 parts of propylene oxide dropwise, and add 0.015 parts of phosphoric acid catalyst The addition reaction is carried out, 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 1.

[0026] 20 parts of PVA0599, 40 parts of PVA1299, 10 parts of the addition reaction product of Example 1, 15 parts of glycerol, 10 parts of polyglycerol 6, 5 parts of deionized water, 1-butyl-3-methylimidazole 1.5 parts of tetrafluoroborate, 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, 1.5 parts of Dupont FSO-100, 0.4 parts of antioxidant 10100, 0.5 parts of antioxidant 300, SiO 2 0.2 parts were put into the high-speed mixer, heated while stirring, pre-plasticized a...

Embodiment 2

[0029] Add 25 parts of glyceryl monoacetate, 25 parts of glyceryl diacetate, 25 parts of glyceryl triacetate, and 25 parts of glycerol into the reaction kettle and stir evenly, add 0.01 part of phosphoric acid catalyst for addition reaction, and the speed is 80-100 rotation per minute, the stirring time is 100-120 minutes, and the temperature is 60-85° C. to obtain the addition reaction product 2.

[0030] 20 parts of PVA0899, 40 parts of PVA1799, 15 parts of the addition reaction product of Example 2, 10 parts of glycerol, 10 parts of PEG800, 5 parts of deionized water, 1-butyl-3-methylimidazole chloride , 1.5 parts, 1.0 parts of dodecyl sultaine, 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, put them into the high-speed mixer, heat while stirring, pre-plasticize at 40°C-120°C / 40min, leave it for 24 hours, and then put it into the granulator for gra...

Embodiment 3

[0033] 20 parts of PVA0599, 40 parts of PVA2099, 25 parts of the addition reaction product of Example 2, 5 parts of glycerol, 5 parts of PEG2000, 5 parts of deionized water, 1-butyl-3-methylimididine tetrafluoro 1.0 parts of borate, 1.0 parts of 1-butyl-3-methylimidazine chloride, 1.0 parts of dodecyl sultaine, anatase TiO 2 2.0 parts, zinc stearate 0.45 parts, oleic acid amide 1.0 parts, DuPont FSO-100 1.5 parts, antioxidant 1010 0.6 parts, antioxidant 300 0.3 parts, SiO 2 0.5 parts were put into the high-speed mixer, heated while stirring, pre-plasticized at 40°C-120°C / 40min, left for 24 hours, and then put into the granulator for granulation to obtain biodegradable PVA melt spinning resin.

[0034] The biodegradable PVA melt-spinning resin was used for trial spinning on a single-head spinning machine, and the performance parameters are shown in Table 1.

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Abstract

The invention discloses biodegradable PVA melt-spinning resin and application thereof. The PVA melt-spinning resin is prepared from the following components in parts by weight: 55 to 80 parts of PVA,20 to 45 parts of a plasticizer, 1.0 to 2.5 parts of a decomposition inhibitor, 0.5 to 5 parts of a fluorocarbon active agent and 1.0 to 10 parts of a processing aid. According to the invention, by modifying the PVA, the distance between a melting point and a decomposition point of the resin are widened, the initial thermal decomposition temperature is increased, a melting index is improved and the migration of a small molecular plasticizer is inhibited; the obtained PVA melt-spinning resin has the advantages of full biodegradability, high temperature water solubility, capability of being directly used for melt-spinning, simple process, less equipment investment, no use of organic solvents or coagulation baths, energy conservation, and no pollution to the environment caused by three wastes.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a biodegradable PVA melt-spinning resin and an application thereof. Background technique [0002] 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 materials, PVA resin cannot be melt-spun, so its application range is greatly limited. [0003] Since PVA (polyvinyl alcohol) has a chemical structure with multiple hydroxyl groups and strong hydrogen bonds, its melting point is very close to its decomposition temperature. Therefore, the processing window is very small, so PVA spinning generally cannot be carried out by melt spinning. So far, PVA spinning mostly adopts wet spinning, gel spinning, or dry spinning. These spinning methods are all solution methods, with complex processes, large investment, and seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/10D01F1/10D01D5/08D04H3/007
CPCD01D5/08D01F1/10D01F8/10D04H3/007
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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