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Preparation and application method for novel super absorbent phenolic flower paste resin

A technology of high water absorption and phenolic flower mud, which is applied in the synthesis and application of polymer phenolic resin, can solve the problems of short fresh-keeping time, poor reusability, and low side wall strength of flowers, and achieve extended storage time, good strength, high The effect of water retention effect

Inactive Publication Date: 2019-07-23
爱克太尔新材料(南京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the current phenolic resin flower mud such as low water retention rate, low water absorption rate, low side wall strength, root burnt, short flower preservation time, and poor reusability, the present invention provides a preparation of a new type of highly water-absorbent phenolic flower mud resin and application method

Method used

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  • Preparation and application method for novel super absorbent phenolic flower paste resin
  • Preparation and application method for novel super absorbent phenolic flower paste resin
  • Preparation and application method for novel super absorbent phenolic flower paste resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 2.36kg of phenol (99%) and 30g of NaOH solution (50%) into a 3L four-necked flask with a stirrer, thermometer, condenser tube and constant pressure funnel, stir and heat up to 50~55°C and start dropwise addition 2.3kg of formaldehyde solution (54%) was added dropwise for 1h, the dropwise addition was completed, and the exothermic temperature was raised to 60~65℃ for 1h. After the heat preservation, the temperature was continued to 80~85°C. The polycondensation process detects water solubility. When the water solubility is expected to reach 0.5, immediately cool down to 35~40℃, add urea and adjust pH=6.8~7 with sulfuric acid, and distill under reduced pressure at 40~50℃ until the viscosity is 4500~5500cps (25℃), that is, get The phenolic resin provided by the present invention.

[0035] (2) Take 650g of the above phenolic resin, add 45g of n-pentane, 2.2g of sodium dodecylbenzenesulfonate, 6g of penetrant, 12g of surfactant Dow Corning OFX-0193, 6g of pigment, M...

Embodiment 2

[0038] (1) Add 2.5kg of phenol (99%) and 25g of NaOH solution (50%) into a 3L four-necked flask with a stirrer, thermometer, condenser tube and constant pressure funnel, stir and heat up to 40~45°C for one-time use 2.2 kg of formaldehyde solution (54%) was added, and the dropwise addition was completed to allow the exothermic temperature to rise to 60-65 °C for 1.5 h. After the heat preservation, the temperature was continued to 80~85°C. The polycondensation process detects water solubility. When the water solubility is expected to reach 1.0, the temperature is immediately lowered to 35~40°C, and urea is added at the same time, and formic acid is used to adjust pH=6.8~7, and the viscosity is 4500~5500cps (25°C) by vacuum distillation at 40~50°C. The phenolic resin provided by the present invention.

[0039] (2) Take 650g of the above phenolic resin, add 40g of isopentane, 1.8g of sodium dodecylbenzenesulfonate, 4.5g of penetrant, 10.8g of surfactant Dow Corning DC-193, 6g of ...

Embodiment 3

[0042](1) Add 2.36kg phenol (99%) and 40g CaO (99%) to a 3L four-necked flask with a stirrer, thermometer, condenser tube and constant pressure funnel, stir and heat up to 50~55°C and start adding 2.5% dropwise. kg formaldehyde solution (54%), the dropwise addition time was 1.5h, the dropwise addition was completed, and the exothermic temperature was raised to 60~65°C for 1.5h. After the heat preservation, the temperature was continued to 80~85°C. The polycondensation process detects water solubility. When the water solubility is expected to reach 1.5, immediately cool down to 35~40℃ and add urea and adjust pH=6.8~7 with hydrochloric acid. Distill under reduced pressure at 40~50℃ until the viscosity is 4500~5500cps (25℃), that is, get The phenolic resin provided by the present invention.

[0043] (2) Take 650g of the above phenolic resin, add 35g of HCFC-141b, 1.5g of sodium dodecylbenzenesulfonate, 4.5g of penetrant, 13g of surfactant castor oil, 6g of pigment, and 14g of Ca...

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PUM

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Abstract

The invention belongs to the field of macromolecular resin synthesis and discloses a method for preparing a super absorbent phenolic flower paste by utilizing condensation polymerization of formaldehyde solution and phenol through a foaming process. The super absorbent phenolic flower paste is mainly applied to the fields of flower preserving, plant cultivation, and the like. The preparation process is as follows: (1) adding phenol and catalyst into a flask at one time, adding formaldehyde solution in batches at 50-55 DEG C, and then slowly rising temperature to 60-65 DEG C; (2) controlling temperature at 60-65 DEG C and keeping for 1-2 hours, and then rising temperature to 80-85 DEG C and reacting; (3) performing polycondensation till achieving an expected water solvent, and then quicklycooling and adding a certain amount of urea, keeping temperature at 40 DEG C and stirring for 1-2h; (4) using an acid for regulating pH to 7, dewatering by reduced pressure distillation till reachinga required viscosity, and then quickly cooling to 20 DEG C; (5) adding a foaming agent, a surface active agent, a penetrant, a pigment, an acidic neutralizer, and the like, in proportion into the resin, and then stirring till the mixture is uniform; (6) adding a certain amount of mixed curing agent into the mixed resin, immediately stirring till the mixture is uniform, and then pouring into a foaming box at 40-50 DEG C for foaming.

Description

technical field [0001] The invention belongs to the field of polymer phenolic resin synthesis and application, and in particular relates to a preparation and application method of a novel high water-absorbing phenolic resin. Background technique [0002] Water-absorbing high molecular polymers have the characteristics of absorbing and retaining a large amount of water, so they are widely used in medical, skin care, hygiene, agriculture and other fields. In recent years, with the development of flowers and green plants, using phenolic flower mud as the base material to cultivate plant seedlings is simple, low cost, high seedling survival rate, well-preserved root system, and high transplant rate. Used for preserving and transporting flowers, it can prolong the life of flowers, improve the ornamental effect of flowers, and has high practical value and huge market prospects. Phenolic flower mud was invented by American Smithers Oasis in 1954. It is simple to use, that is, put ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/10C08J9/14C08L61/10
CPCC08G8/10C08J9/141C08J9/144C08J2203/14C08J2203/142C08J2361/10
Inventor 吕飞张茜耿红涛
Owner 爱克太尔新材料(南京)有限公司