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Degradable foam composition for growing seedlings or flower arrangement and its manufacturing method and application

A composition and foam technology, applied in the field of degradable foam composition, can solve the problems of inelasticity, non-degradation of foam, slag falling, etc., and achieve the effect of increasing the effective collision frequency, accelerating the polymerization speed, and increasing the rate

Inactive Publication Date: 2019-08-30
INST OF FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 2.1 Boiler steam is used for heating, which has high energy consumption, low efficiency and serious pollution
Harmful substances in wastewater seriously endanger the environment and are difficult to treat
[0013] 2.3 At present, the flower mud foam produced by many enterprises has high content of free phenol and free formaldehyde
In terms of quality, the flower mud foam has relatively high hardness, crispness, dregs, inelasticity, and high density, about 35-40kg / m 3 , high production costs
[0014] 2.4 The produced foam does not degrade, it is difficult to handle, and it is harmful to the environment
[0015] 2.5 At present, there is no phenolic foam composition product that can be used for seedling cultivation in China. Although some large flower mud manufacturers in China have tried many times, they have not been successful.

Method used

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  • Degradable foam composition for growing seedlings or flower arrangement and its manufacturing method and application
  • Degradable foam composition for growing seedlings or flower arrangement and its manufacturing method and application
  • Degradable foam composition for growing seedlings or flower arrangement and its manufacturing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 prepares modified thermosetting phenolic resin 1

[0062] The raw material formula of the modified thermosetting phenolic resin in this embodiment is: phenol and polyoxymethylene with a molar ratio of 1:2, the dosage is 25ml of water per mole of phenol, and the additive is urea with an addition amount of 16% of the mass of phenol , an add-on is the pulp board (dry weight, the same below) of 10% phenol quality, an add-on is the starch of 9% phenol quality, and an add-on is 10% polyvinyl alcohol solution of mass percentage of 10% phenol quality. That is, every 94g of phenol reacts with 60g of polyoxymethylene, the amount of water is 25ml, and then add additives (urea 15.04g, starch 8.46g, pulp board 9.4g, mass percent 10% polyvinyl alcohol solution 9.4g).

[0063] A normal-pressure microwave chemical reactor is selected, and a four-port reaction kettle equipped with a stirrer, a condenser and a thermometer is installed in the microwave chemical reactor.

[0...

Embodiment 2

[0080] Embodiment 2 prepares modified thermosetting phenolic resin 2

[0081] The raw material formula of the modified thermosetting phenolic resin of the present embodiment is phenol and polyoxymethylene that the molar ratio is 1:1.4, consumption is the water of 25ml per mole of phenol, then add the additive and be the urea that add-on is 10% of phenol quality, The amount of pulp board added is 6% by mass of phenol, the amount of starch added is 6% by mass of phenol, and the amount of added is 10% polyvinyl alcohol solution of 2% by mass of phenol. That is, every 94g of phenol reacts with 42g of polyoxymethylene, adding water in an amount of 17.5ml, and then adding additives (9.4g of urea, 5.64g of pulp board, 5.64g of starch, 1.88g of polyvinyl alcohol solution of 10% by mass percentage ).

[0082] The specific steps of the reaction are the same as in Example 1, and the end point temperature of the third round of reaction is set at 95°C.

[0083] The product obtained from ...

Embodiment 3

[0084] Embodiment 3 prepares modified thermosetting phenolic resin 3

[0085] The raw material formula of the modified thermosetting phenolic resin of the present embodiment is phenol and polyoxymethylene that the molar ratio is 1:2.5, and consumption is the water of 25ml per mole of phenol, then add the additive and be the urea that add-on is phenol quality 25%, The amount of pulp board added is 15% by mass of phenol, the amount of starch added is 15% by mass of phenol, and the amount of added polyvinyl alcohol solution is 10% by mass of 15% by mass of phenol. That is, every 94g of phenol reacts with 75g of polyoxymethylene, adding consumption is 31.25ml of water, and then adding additives (urea 23.5g, pulp board 14.1g, starch 14.1g, mass percentage composition 10% polyvinyl alcohol solution 14.1g ).

[0086] The specific steps of the reaction are the same as in Example 1, and the end point temperature of the third round of reaction is set at 95°C.

[0087] The product obta...

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Abstract

The invention relates to the field of plant cultivation media, and particularly provides a degradable foam composition for seedling raising or flower arrangement. The degradable foam composition for seedling raising or flower arrangement is prepared from the following raw materials: phenol and polyformaldehyde in a mole ratio of 1:(1.4-2.5), water (24mL for every mole of phenol), urea (accounting for 10-25 wt% of the phenol), pulp board (accounting for 6-15 wt% of the phenol), starch (accounting for 6-15 wt% of the phenol), and 10 wt% polyvinyl alcohol (accounting for 2-15 wt% of the phenol). The invention also provides a preparation method and application of the degradable foam composition for seedling raising or flower arrangement. The reaction speed of the preparation method is greatly higher than that of the traditional method, and no wastewater is generated in the whole process. The free formaldehyde content and free phenol content of the prepared product are lower than the national standard, so the product is completely harmless; and the seedling raising container or flower mud prepared from the degradable foam composition is suitable for demands of plants for physical properties of the nutrient and medium.

Description

technical field [0001] The invention relates to the field of plant planting substrates, in particular to a degradable foam composition for seedling raising or flower arrangement and its manufacturing method and application. Background technique [0002] At present, the foam material composition that is used for plant seedling cultivation, preservation, growth, especially prolonging the life of flowers, keeping flowers fresh for a long time, and helping the growth of flowers is also called flower mud, and most of them belong to phenolic foam compositions. This foam material composition has a high porosity, crispness, breathability, and contains hydrophilic substances inside. It has good water absorption and water retention, making it a flower arrangement foam material composition widely used in domestic and foreign flower markets. It has beautification and appreciation effects. The preservation of fresh flowers for long-distance transportation is of special value. With the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/10C08L61/10C08L1/02C08L3/02C08L29/04C08J9/14
Inventor 许洋许传森张晨
Owner INST OF FORESTRY CHINESE ACAD OF FORESTRY
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