Modified hydrolysis-resistant polyvinyl alcohol high polymer material and production method and application

A polymer material, polyvinyl alcohol technology, used in flexible coverings, coatings, packaging and other directions, can solve problems affecting product appearance, affecting product processing performance, etc., to achieve excellent fragrance retention, excellent anti-oxidation, easy to use The effect of adjustment

Inactive Publication Date: 2013-04-10
刘长龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a modified hydrolysis-resistant polyvinyl alcohol polymer material and its production method and application, in order to solve the problem that the color of the existing modified hydrolysis-resistant polyvinyl alcohol solution changes from yellow to reddish-brown over time, which seriously affects The appearance of the product and the problems affecting the processing performance of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) The formula consists of the following raw materials in parts by mass:

[0027] Polyvinyl alcohol, polymerization degree 1500~2000, alcoholysis degree ≥ 99%: 8 parts

[0028] Purified water: 65 parts

[0029] 2-butanol or methanol: 5 parts

[0030] Organic titanate: 0.2 parts

[0031] Glycerol: 0.5 parts

[0032] Sodium lauryl sulfate: 0.08 parts

[0033] Alkoxysilane: 2 parts

[0034] Melamine resin: 2 parts

[0035] ⑵ Production method

[0036] Add pure water into the reaction kettle with a reflux tower, add sec-butanol or methanol from the liquid surface under stirring conditions; start heating, slowly add polyvinyl alcohol into the reaction kettle from the feeding port, when the temperature rises to 45°C , The temperature rise rate is 100 degrees / hour, open the water inlet and outlet valves of the reflux tower, when the temperature rises to 98°C, the temperature rise rate is 100 degrees / hour, keep stirring at a constant temperature for 2 hours, and the sti...

Embodiment 2

[0038] (1) The formula consists of the following raw materials in parts by mass:

[0039] Polyvinyl alcohol, polymerization degree 1500~2000, alcoholysis degree ≥ 99%: 10 parts

[0040] Purified water: 70 parts

[0041] 2-butanol or methanol: 6 parts

[0042] Organic titanate: 0.225 parts

[0043] Glycerol: 1.75 parts

[0044] Sodium lauryl sulfate: 0.115 parts

[0045] Alkoxysilane: 3 parts

[0046] Melamine resin: 3.5 parts

[0047] ⑵ Production method

[0048] Same as Example 1

Embodiment 3

[0050] (1) The formula consists of the following raw materials in parts by mass:

[0051] Polyvinyl alcohol, polymerization degree 1500~2000, alcoholysis degree ≥ 99%: 12 parts

[0052] Purified water: 75 parts

[0053] sec-butanol or methanol: 7 parts

[0054] Organic titanate: 0.25 parts

[0055] Glycerol: 3 parts

[0056] Sodium lauryl sulfate: 0.15 parts

[0057] Alkoxysilane: 4 parts

[0058] Melamine resin: 5 parts

[0059] ⑵ Production method

[0060] With embodiment 1.

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Abstract

The invention relates to a modified hydrolysis-resistant polyvinyl alcohol high polymer material, a production method and application, which belongs to the field of high polymer materials. The modified hydrolysis-resistant polyvinyl alcohol high polymer material is composed of the following components: by weight parts, 8 to 12 parts of polyvinyl alcohol with the polymerization degree ranging from1500 to 2000 and alcoholysis degree larger than or equal to 99%, 65 to 75 parts of purified water, 5 to 7 parts of sec-butyl alcohol or methyl alcohol, 0.2 to 0.25 part of organic titanate, 0.5 to 3 parts of glycerol, 0.08 to 0.15 part of lauryl sodium sulfate, 2 to 4 parts of alkoxy silane and 2 to 5 parts of melamine resin. Rubber preparation and coating at normal temperature are realized, solution is transparent, and coatings of the modified hydrolysis-resistant polyvinyl alcohol high polymer material have excellent printing and compositing adaptation performance and can meet the requirements of composite of various material structures.

Description

technical field [0001] The invention belongs to polymer materials, in particular to a modified hydrolysis-resistant polyvinyl alcohol polymer material. Background technique [0002] The existing modified hydrolysis-resistant polyvinyl alcohol solution is yellow and opaque, and the end surface of the roll diameter of the substrate after coating is yellow. As time goes by, the color changes from yellow to reddish brown, which seriously affects the appearance of the product. At the same time, the solution is greatly affected by temperature, time and pH value. The lower the temperature, the longer the time, and the lower the pH value, the easier it is for the modified PVA solution to gel, which affects the processing performance of the product. [0003] At present, the high barrier packaging materials on the market mainly include polyvinylidene chloride (PVDC), ethylene-vinyl alcohol copolymer (EVOH) and polyvinyl alcohol (PVA). With the increase of packaging functions in the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/04C08L61/28C08K5/10C08K5/053C08K5/41C08K5/541C09D129/04C09D7/12B65D65/42
Inventor 刘长龙侯立臣庞志鹏马英俊
Owner 刘长龙
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