CN109423230A - Organic covering pad and preparation method thereof - Google Patents
Organic covering pad and preparation method thereof Download PDFInfo
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- CN109423230A CN109423230A CN201710472769.7A CN201710472769A CN109423230A CN 109423230 A CN109423230 A CN 109423230A CN 201710472769 A CN201710472769 A CN 201710472769A CN 109423230 A CN109423230 A CN 109423230A
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- covering pad
- organic covering
- afforestation waste
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- curing agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/30—Presence of wood
- C09J2400/303—Presence of wood in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
Abstract
The present invention provides a kind of organic covering pads and preparation method thereof.The raw material of organic covering pad includes afforestation waste, Aqueous Polyurethane Adhesives and curing agent.Afforestation waste can be consolidated in the formation organic covering pad of polyurethane/afforestation waste in polyurethane matrix by Aqueous Polyurethane Adhesives and curing agent.Polyurethane adhesive performance is good, while it does not have inhibiting effect for plant growth, and can increase soil nutrient content, and the base material component as organic covering pad can provide nutriment for plant growth.And the afforestation waste in organic covering pad contains a large amount of mineral elements and organic matter, equally can provide growth elements for vegetation.Meanwhile organic covering pad compression strength also with higher provided by the invention, satisfactory mechanical property, and stability with higher, it is particularly suitable for being laid on above bare soil.
Description
Technical field
The present invention relates to organic coverings to pad technical field, in particular to a kind of organic covering pad and preparation method thereof.
Background technique
Afforestation waste is primarily referred to as ornamental plant and withers and falls naturally or manually trim generated plant residue, mainly
Including leaf, grass cuttings, trees and shrub beta pruning etc..With the continuous rising of afforestation coverage in the city, afforestation waste
Quantity increasingly increases, if any processing, not only influences appearance of city, but also may cause environmental pollution.Green garbage
Processing mode is fairly simple, technology tradition fall behind, mainly with burning, landfill, directly recurrence greenery patches and arbitrarily be discarded as it is main
The case where processing mode, recycling, is less, and green garbage problem does not obtain enough attention.
Under the environmental protection main trend of " reducing carbon emission, reduce pollution ", more and more public begin to focus on carbon row
Put the relationship with global warming, it is clear that burn and landfill afforestation waste will cause a large amount of carbon emission, be pole
It falls behind, disposal options not environmentally, and according to " whole, coordination, circulation, regeneration " principle, it is carried out with modern means of science and technology
Afforestation waste recycles, and realizes innoxious, minimizing, recycling treatment, makes the best use of everything, turns waste into wealth, tool
There is very significant social benefit.
Afforestation waste contains the value for the characteristics of a large amount of mineral elements and organic matter determining its recycling how
The problem of effective use becomes urgent need to resolve is carried out to it.
Summary of the invention
The main purpose of the present invention is to provide a kind of organic covering pads and preparation method thereof, to solve garden in the prior art
The problem of woods greening waste can not efficiently use.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of organic covering pad, raw material packet
It includes: afforestation waste, Aqueous Polyurethane Adhesives and curing agent.
Further, the weight ratio between afforestation waste and Aqueous Polyurethane Adhesives is 1~5:1.
Further, the weight ratio between afforestation waste and Aqueous Polyurethane Adhesives is 2~3:1.
Further, curing agent accounts for the 1~5% of Aqueous Polyurethane Adhesives weight.
Further, curing agent is addition product, biuret polyisocyanate, the trimerization figure of TDI and trimethylolpropane
One of polyisocyanates is a variety of.
Further, afforestation waste includes one of fallen leaves, grass cuttings, trees beta pruning and shrub beta pruning or more
Kind.
Further, the partial size of afforestation waste is 0.5~4cm, preferably 1~3cm.
Further, the humidity of afforestation waste is 10~25%.
According to another aspect of the present invention, a kind of preparation method of organic covering pad is additionally provided comprising following steps:
Glue is formed after Aqueous Polyurethane Adhesives and curing agent are mixed；Glue is sprayed on the surface of afforestation waste,
Obtain mixture to be solidified；And cure under pressure is carried out to mixture to be solidified, obtain organic covering pad.
Further, in the step of carrying out cure under pressure to mixture to be solidified, mixture to be solidified is placed in mold,
Solidify 6~12h under the pressure of 10~30KPa, obtains organic covering pad.
It applies the technical scheme of the present invention, provides a kind of organic covering pad, the raw material of organic covering pad includes gardens
Afforest waste, Aqueous Polyurethane Adhesives and curing agent.It can be green by gardens by Aqueous Polyurethane Adhesives and curing agent
Change waste and is consolidated in the formation organic covering pad of polyurethane/afforestation waste in polyurethane matrix.Polyurethane adhesive performance
It is good, while it does not have inhibiting effect for plant growth, and can increase soil nutrient content, the substrate as organic covering pad
Ingredient can provide nutriment for plant growth.And the afforestation waste in organic covering pad contains a large amount of mineral elements
And organic matter, equally growth elements can be provided for vegetation.Meanwhile organic covering pad provided by the invention is also with higher anti-
Compressive Strength, satisfactory mechanical property, and stability with higher are particularly suitable for being laid on above bare soil.In short, utilizing this
Organic covering pad of invention, not only efficiently solves the Utilizing question of afforestation waste, additionally it is possible to provide largely for soil
Nutriment, have broad application prospects.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
The application is described in further detail below in conjunction with specific embodiment, these embodiments should not be understood as limitation originally
Apply for range claimed.
As described in background technology part, asking for afforestation waste can not be efficiently used by existing in the prior art
Topic.
In order to solve this problem, the present invention provides a kind of organic covering pad, the raw material of organic covering pad includes: garden
Woods afforests waste, Aqueous Polyurethane Adhesives and curing agent.
Afforestation waste can be consolidated in shape in polyurethane matrix by Aqueous Polyurethane Adhesives and curing agent
The organic covering pad of generating polyurethane/afforestation waste.Polyurethane adhesive performance is good, while it does not inhibit plant growth
Effect, and soil nutrient content can be increased, the base material component as organic covering pad can provide nutrients for plant growth
Matter.And the afforestation waste in organic covering pad contains a large amount of mineral elements and organic matter, can equally provide for vegetation
Growth elements.Meanwhile organic covering pad compression strength also with higher provided by the invention, satisfactory mechanical property, and have
Higher stability is particularly suitable for being laid on above bare soil.In short, using organic covering pad of the invention, not only effectively
Solves the Utilizing question of afforestation waste, additionally it is possible to provide a large amount of nutriment for soil, there is wide application
Prospect.
In a preferred embodiment, afforestation waste and aqueous polyurethane gluing in above-mentioned organic covering pad
Weight ratio between agent is 1~5:1, preferably 2~3:1.It will be between afforestation waste and Aqueous Polyurethane Adhesives
Weight ratio controls within the above range, on the one hand can make to mix afforestation waste as much as possible in organic covering pad,
So that organic covering pad is capable of providing more biological prime elements.On the other hand, afforestation waste can also be made more in this way
It is steadily coated in polyurethane base material, is crosslinked Aqueous Polyurethane Adhesives more fully, to improve the machine of organic covering pad
Tool performance and stability.
Above-mentioned Aqueous Polyurethane Adhesives can be bought, and can also voluntarily be configured.In a preferred embodiment, on
It states Aqueous Polyurethane Adhesives and is selected from the 300C type Aqueous Polyurethane Adhesives that Hefei Hua Yue new material Science and Technology Ltd. provides.
The Aqueous Polyurethane Adhesives have more suitable viscosity, can be improved the processing performance of organic covering pad.
Those skilled in the art can be according to the dosage of the dosage adjustment curing agent of Aqueous Polyurethane Adhesives.A kind of excellent
In the embodiment of choosing, curing agent accounts for the 1~5% of Aqueous Polyurethane Adhesives.It can make Aqueous Polyurethane Adhesives more in this way
Full cross-linked solidification, to be conducive to further increase the mechanical performance and stability of organic covering pad.Specific curing agent kind
Class can use the Common Curing Agents of polyurethane, and in a preferred embodiment, curing agent includes but is not limited to TDI and three
One or more, these types solidification of the addition product, biuret polyisocyanate, trimerization type polyisocyanate of hydroxymethyl-propane
Agent curing time is more suitable, and the cross-linking properties of polyurethane is more preferably.
In a preferred embodiment, afforestation waste includes fallen leaves, grass cuttings, trees beta pruning and shrub beta pruning
One of or it is a variety of, preferably the partial size of afforestation waste be 0.5~4cm.By these afforestation wastes smash at
Particle in above-mentioned particle size range can be such that it is more fully dispersed in polyurethane base material, can make organic covering pad in this way
With higher compression strength.The partial size of more preferable afforestation waste is 1~3cm.
In the actual operation process, these afforestation waste gatherings, crushing and naturally dry need to can only be applied.
In a preferred embodiment, the humidity of afforestation waste is 10~25%.Under the damp condition, garden waste
It can be more sufficiently mixed with Aqueous Polyurethane Adhesives, the more uniform organic covering pad of forming properties.That states herein is " wet
Degree " is water content, is mass content.
According to another aspect of the present invention, a kind of preparation method of above-mentioned organic covering pad is additionally provided comprising following
Step: glue is formed after Aqueous Polyurethane Adhesives and curing agent are mixed；Glue is sprayed to the table of afforestation waste
On face, mixture to be solidified is obtained；And cure under pressure is carried out to mixture to be solidified, obtain organic covering pad.
The glue that Aqueous Polyurethane Adhesives and curing agent are formed is sprayed on the surface of afforestation waste, then
Cure under pressure is carried out, afforestation waste can be consolidated in formation polyurethane/afforestation waste in polyurethane matrix
Organic covering pad.Polyurethane adhesive performance is good, while it does not have inhibiting effect for plant growth, and can increase soil nutrient
Content, the base material component as organic covering pad can provide nutriment for plant growth.And the gardens in organic covering pad
Greening waste contains a large amount of mineral elements and organic matter, equally can provide growth elements for vegetation.Meanwhile prepared by the present invention
Organic covering pad compression strength also with higher, satisfactory mechanical property, and stability with higher is particularly suitable for being laid with
Above bare soil.In short, not only efficiently solving the utilization of afforestation waste using organic covering pad of the invention
Problem, additionally it is possible to provide a large amount of nutriment for soil, have broad application prospects.
In specific operating process, on the surface that glue is sprayed at afforestation waste after, preferably treat
Solidification mixture is stirred, and can be made glue and afforestation waste mixedly more uniform in this way, be made glue and gardens
It is more uniform to afforest waste contact, to be conducive to improve the mechanical performance of organic covering pad.It is highly preferred that by aqueous poly- ammonia
After ester adhesive, curing agent and the mixing of optional modifying agent, stirred 10 minutes or more in blender, so as to be mixed between component
More evenly.
It in a preferred embodiment, will be to be solidified mixed in the step of carrying out cure under pressure to mixture to be solidified
It closes material to be placed in mold, solidifies 6~12h under the pressure of 10~30KPa, obtain organic covering pad.It can make water under this condition
Property adhesive for polyurethane more fully crosslinking curing.It is highly preferred that after solidification, at shady and cool drying certainly by organic covering pad
It so air-dries 48 hours or more, with the organic covering pad of drying.
Beneficial effects of the present invention are further illustrated by the following examples:
Afforestation waste source: it is derived from park administration office, Xiangshan.The main tree in afforestation waste source
Kind there are locust tree, tree-of-heaven, smoke tree, paper mulberry, willow, poplar and a small amount of Chinese pine, lacebark pine etc..The pH value of waste is 6.25,
EC value is 0.82mS/cm, and full nitrogen (TN) content is 0.81%, and full phosphorus (TP) content is 0.42%, and full potassium (TK) content is
0.72%, organic carbon content 46.78%.By the afforestation waste of collection by pulverizing and sieving, different grains is screened out
Diameter is placed spare in a cool and dry place after natural air drying.
Aqueous Polyurethane Adhesives: 300C type, Hefei Hua Yue new material Science and Technology Ltd. provide；
Embodiment 1
Aqueous Polyurethane Adhesives, biuret polyisocyanate are mixed into (account for Aqueous Polyurethane Adhesives 4%), stirred
It mixes and forms glue after stirring 10min in machine；Glue is sprayed at the afforestation waste that partial size is 1~3cm, humidity is 15%
Surface on, wherein the weight ratio of afforestation waste and Aqueous Polyurethane Adhesives be 2:1, stir to get mixing to be solidified
Material；Mixture to be solidified is placed in plastic mould and carries out cure under pressure, pressurize 12.5KPa, and curing time 10h is had
Machine covering pad.
Embodiment 2
The preparation method is the same as that of Example 1, the difference is that, the weight of afforestation waste and Aqueous Polyurethane Adhesives
Than for 3:1.
Embodiment 3
The preparation method is the same as that of Example 1, the difference is that, the weight of afforestation waste and Aqueous Polyurethane Adhesives
Than for 1:1.
Embodiment 4
The preparation method is the same as that of Example 1, the difference is that, the weight of afforestation waste and Aqueous Polyurethane Adhesives
Than for 5:1.
Embodiment 5
The preparation method is the same as that of Example 1, the difference is that, the weight of afforestation waste and Aqueous Polyurethane Adhesives
Than for 6:1.
Embodiment 6
The preparation method is the same as that of Example 1, the difference is that, the partial size of afforestation waste is 0.5~1cm, and humidity is
10%.
Embodiment 7
The preparation method is the same as that of Example 1, the difference is that, the partial size of afforestation waste is 3~4cm, and humidity is
25%.
Embodiment 8
The preparation method is the same as that of Example 1, the difference is that, the partial size of afforestation waste is 4~6cm, and humidity is
30%.
Embodiment 9
The preparation method is the same as that of Example 1, the difference is that, curing agent accounts for the 1% of Aqueous Polyurethane Adhesives weight.Pressurization
30KPa, curing time 6h.
Embodiment 10
The preparation method is the same as that of Example 1, the difference is that, curing agent accounts for the 5% of Aqueous Polyurethane Adhesives weight.Pressurization
10KPa, curing time 12h.
Embodiment 11
The preparation method is the same as that of Example 1, the difference is that, curing agent accounts for the 0.8% of Aqueous Polyurethane Adhesives.Pressurization
8KPa, curing time 5h.
Test characterization is carried out to the performance of the organic covering pad prepared in embodiment 1 to 11:
(1) compression strength:
It is measured according to GB/T 17657-1999, the results are shown in Table 1.
(2) influence of organic covering pad for soil physico-chemical property:
Test takes the three hectares of gardens in Beijing nursery natural soils, 2mm sieve is crossed after natural air drying, a quarter method is packed into system after mixing
The white plastic bucket of one specification (upper diameter 45cm, lower diameter 35cm, high 58cm), soil height 46cm in bucket, carry out respectively with
The organic covering pad covering treatment prepared in embodiment 1 to 11, and handled as a comparison with no covering (CK), covering mat thickness is equal
It for 3cm, is designed using randomized block experiment, each processing in triplicate, carries out after covering carries out 3 months and 6 months respectively
Collecting soil sample analysis.
Test soil types is moisture soil, each grade grogs content are as follows: sand grains (1~0.05mm) 25.40%, coarse dust
(0.05~0.01mm) 36.00%, thin sticking grain (< 0.01mm) 38.60%, making the classification soil texture according to China is middle clay,
Bulk density 1.44g/kg, pH8.32, organic matter 13.43g.kg-1, alkali-hydrolyzable nitrogen 24.08mg.kg-1, rapid available phosphorus 15.62mg.kg-1, speed
Imitate potassium 171.91mg.kg-1。
Wherein, different embodiments and without covering comparative example in, changes of pH is shown in Table 2；
Different embodiments and without covering comparative example in, soil organic matter content variation is shown in Table 3；
Different embodiments and without covering comparative example in, soil alkali-hydrolyzable nitrogen changes of contents is shown in Table 4；
Different embodiments and without covering comparative example in, content of soil available phosphor variation is shown in Table 5；
Different embodiments and without covering comparative example in, soil available nitrogen changes of contents is shown in Table 6.
(3) toxotest is padded in organic covering
The preparation method of organic covering pad leaching liquor: at room temperature, covering pad prepared by embodiment 1 to 11 and
Untreated afforestation waste (1~3cm of partial size) is fitted into flowerpot, and flowerpot size is 8.5 × 7cm, the covering pad of loading
Quality is 125g, and organic covering pad is made to be fully filled with flowerpot, and every kind of processing is repeated 3 times.It is first organic with 50ml distillation water-soaked
Covering is padded, and each processing adds 150ml distilled water after 1h, the leaching liquor oozed out from flowerpot bottom is collected, using fixed
Property filter paper filtering, transfer save.Same treatment is carried out using distilled water simultaneously, as blank control.Test is in triplicate.It is all
Leachate is sealed in refrigerating box with tinfoil, spare in 2h.
120h leachate germination test: upper primary qualitative filter paper is padded in the culture dish bottom that diameter is 90mm, chooses seed
Full Chinese cabbage seed 150 is randomly assigned in 3 culture dishes, 50 × 3 wares, and every kind of test process in triplicate, amounts to
18 wares.Seed is uniformly placed on the filter paper in culture dish, one layer of qualitative filter paper is then covered on seed, each culture dish adds
Enter 7ml leachate.22 DEG C of temperature, humidity 60%~65% constant incubator in, cultivate 120h (Chen Yuanyuan, 2009), often
It keeps 12h dark, 12h illumination, and the every germination by observing seed for 24 hours of ventilation 5min daily, measures germinative number,
The bud fresh weight of seed is measured after 120h.
It is calculated using the following equation germinating energy, the germination percentage index of seed:
Germinating energy=(SDay/SAlways) × 100%
Germination percentage=(Smax/SAlways) × 100%
In formula: SDay- average daily germinative number reaches chitting piece number when highest；SAlwaysThe sample seeds sum of-measurement；
Smax- highest germination grain number.
Data in test are duplicate average value three times；
Under different embodiments and untreated afforestation waste comparative example, distilled water comparative example, the germination of Chinese cabbage seed
Gesture, germination percentage and fresh bud weight situation are as shown in table 7.
(4) organic covering pad tests petunia growth effect
Organic covering pad pot experiment material preparation: choosing No. 8 flowerpots (diameter 18cm, high 16cm plant bore 17cm),
10cm element soil is filled in flowerpot, soil types is moisture soil, each grade grogs content are as follows: sand grains (1~0.05mm) 25.40%,
Coarse dust (0.05~0.01mm) 36.00%, thin sticking grain (< 0.01mm) 38.60%, making the classification soil texture according to China is
Middle clay, bulk density 1.44g/kg, pH8.32, organic matter 13.43g.kg-1, alkali-hydrolyzable nitrogen 24.08mg.kg-1, rapid available phosphorus
15.62mg.kg-1, available potassium 171.91mg.kg-1。
The organic covering pad of Aqueous Polyurethane Adhesives prepared by the embodiment 1 to 11 prepared is covered each by plain soil,
With blank test (CK) for comparative example.It hits exactly and drills in organic covering pad, hole diameter 3cm.It is colonized in hole in the same size
Petunia (Petunia hybrida Vilm) Plug seedling (use 2 weeks Plug seedlings), moisture is watered on the day of plantation and is existed later
It is placed in greenhouse, periodically watering is not applied fertilizer, and is measured flowers and plants form and physical signs after planting 60d and is investigated its situation of blooming, unites
Percentage shared by the strain number of blooming of each experimental group is counted, every 5d investigation is primary.The morphological feature assessment of plant uses plant shape
State index comprehensive evaluation system.Measurement item includes that plant height, hat width, knot spend number.Utilize UV-vis double beam spectrophotometer
(UV-4802, UNICO company) carries out chlorophyll quantitative analysis.Each experimental group is repeated 3 times, and the data in test are to weigh three times
Multiple average value.The results are shown in Table 8.
1 compression strength of table
| Compression strength (MPa) | Compression strength (MPa) | ||
| Embodiment 1 | 0.73 | Embodiment 7 | 0.75 |
| Embodiment 2 | 0.69 | Embodiment 8 | 0.66 |
| Embodiment 3 | 0.76 | Embodiment 9 | 0.70 |
| Embodiment 4 | 0.66 | Embodiment 10 | 0.74 |
| Embodiment 5 | 0.61 | Embodiment 11 | 0.65 |
| Embodiment 6 | 0.70 |
2 changes of pH table of table
| 3 months pH | 6 months pH | 3 months pH | 6 months pH | ||
| Embodiment 1 | 8.38 | 8.42 | Embodiment 7 | 8.40 | 8.44 |
| Embodiment 2 | 8.34 | 8.40 | Embodiment 8 | 8.39 | 8.44 |
| Embodiment 3 | 8.32 | 8.38 | Embodiment 9 | 8.37 | 8.42 |
| Embodiment 4 | 8.33 | 8.37 | Embodiment 10 | 8.41 | 8.45 |
| Embodiment 5 | 8.38 | 8.43 | Embodiment 11 | 8.43 | 8.47 |
| Embodiment 6 | 8.39 | 8.42 | Comparative example (CK) | 8.36 | 8.44 |
3 soil organic matter content of table changes table
| 3 months amplification | 6 months amplification | 3 months amplification | 6 months amplification | ||
| Embodiment 1 | 18.35% | 28.03% | Embodiment 7 | 18.19% | 28.00% |
| Embodiment 2 | 20.14% | 30.69% | Embodiment 8 | 17.84% | 27.43% |
| Embodiment 3 | 17.51% | 27.43% | Embodiment 9 | 18.15% | 27.96% |
| Embodiment 4 | 20.52% | 30.71% | Embodiment 10 | 18.09% | 27.91% |
| Embodiment 5 | 20.63% | 31.02% | Embodiment 11 | 17.61% | 27.03% |
| Embodiment 6 | 18.40% | 28.41% | Comparative example (CK) | - 0.60% | - 1.71% |
4 soil alkali-hydrolyzable nitrogen changes of contents table of table
| 3 months amplification | 6 months amplification | 3 months amplification | 6 months amplification | ||
| Embodiment 1 | 12.7% | 16.7% | Embodiment 7 | 10.2% | 14.8% |
| Embodiment 2 | 14.8% | 19.2% | Embodiment 8 | 9.5% | 14.0% |
| Embodiment 3 | 10.6% | 14.6% | Embodiment 9 | 11.9% | 16.4% |
| Embodiment 4 | 17.3% | 21.4% | Embodiment 10 | 11.2% | 16.0% |
| Embodiment 5 | 18.1% | 22.0% | Embodiment 11 | 11.0% | 15.5% |
| Embodiment 6 | 13.1% | 17.3% | Comparative example (CK) | - 3.00% | 0.78% |
5 content of soil available phosphor of table changes table
| 3 months amplification | 6 months amplification | 3 months amplification | 6 months amplification | ||
| Embodiment 1 | - 17.7% | - 17.5% | Embodiment 7 | - 18.0% | - 17.8% |
| Embodiment 2 | - 15.2% | - 14.9% | Embodiment 8 | - 18.1% | - 17.9% |
| Embodiment 3 | - 18.0% | - 17.9% | Embodiment 9 | - 17.5% | - 17.2% |
| Embodiment 4 | - 14.7% | - 15.1% | Embodiment 10 | - 17.6% | - 17.4% |
| Embodiment 5 | - 14.2% | - 14.9% | Embodiment 11 | - 18.1% | - 18.0% |
| Embodiment 6 | - 17.8% | - 17.5% | Comparative example (CK) | - 18.9.00% | - 25.8% |
6 soil available nitrogen changes of contents table of table
| 3 months amplification | 6 months amplification | 3 months amplification | 6 months amplification | ||
| Embodiment 1 | - 0.97% | 2.23% | Embodiment 7 | - 1.36% | 1.87% |
| Embodiment 2 | 0.31% | 4.05% | Embodiment 8 | - 1.98% | 1.51% |
| Embodiment 3 | - 1.24% | 1.92% | Embodiment 9 | - 0.86% | 2.07% |
| Embodiment 4 | 0.45% | 5.07% | Embodiment 10 | - 0.92% | 2.46% |
| Embodiment 5 | 0.49% | 5.68% | Embodiment 11 | - 1.50% | 1.43% |
| Embodiment 6 | 0.07% | 2.08% | Comparative example (CK) | - 10.2% | - 6.87% |
7 Chinese cabbage seed germinating energy of table, germination percentage and fresh bud weight situation
| Germinating energy (%) | 2nd day germination percentage (%) | 4th day germination percentage (%) | Fresh bud weight (mg) | |
| Embodiment 1 | 46 | 95 | 97 | 37.0 |
| Embodiment 2 | 47 | 96 | 98 | 37.2 |
| Embodiment 3 | 47 | 93 | 97 | 36.8 |
| Embodiment 4 | 46 | 97 | 98 | 37.1 |
| Embodiment 5 | 46 | 97 | 98 | 37.0 |
| Embodiment 6 | 48 | 96 | 97 | 37.1 |
| Embodiment 7 | 46 | 96 | 97 | 37.0 |
| Embodiment 8 | 46 | 95 | 96 | 36.9 |
| Embodiment 9 | 45 | 96 | 97 | 36.9 |
| Embodiment 10 | 47 | 96 | 98 | 37.2 |
| Embodiment 11 | 46 | 97 | 98 | 37.0 |
| Untreated waste | 46 | 96 | 97 | 37.3 |
| Distilled water blank test | 47 | 97 | 97 | 37.1 |
8 petunia growing state of table
It can be seen from the above description that the above embodiments of the present invention realized the following chievements: the present invention mentions
The organic covering pad supplied, compression strength with higher, and the pH value for soil, the content of organic matter, alkaline hydrolysis nitrogen content, speed
Effect phosphorus quick-acting potassium content tool has a greater degree of improvement, and shows that organic covering pad provided by the invention not only has preferable machinery
Performance, and be conducive to inhibit the growth of weeds, the loss of nutrient is reduced, also can increase soil nutrient while covering pad decomposes
Content, on the one hand efficiently solve the Utilizing question of afforestation waste, be on the one hand conducive to improve soil fertility.Together
When, organic covering pad provided in the present invention is nontoxic, the growth to the no inhibiting effect of the germination of Chinese cabbage seed, for petunia
There are also preferable facilitations.Particularly, by the grain of the dosage relation of each component and afforestation waste in organic covering pad
Diameter is controlled in preferred scope, organic covering pad can be made to have both good compression strength and soil modification ability, and for plant
Growth is advantageously.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of organic covering pad, which is characterized in that the raw material of organic covering pad includes: afforestation waste, aqueous
Adhesive for polyurethane and curing agent.
2. organic covering pad according to claim 1, which is characterized in that the afforestation waste and described aqueous poly-
Weight ratio between urethane adhesive is 1~5:1.
3. organic covering pad according to claim 2, which is characterized in that the afforestation waste and described aqueous poly-
Weight ratio between urethane adhesive is 2~3:1.
4. organic covering pad according to any one of claim 1 to 3, which is characterized in that the curing agent accounts for the water
The 1~5% of property adhesive for polyurethane weight.
5. organic covering pad according to claim 3, which is characterized in that the curing agent is TDI and trimethylolpropane
Addition product, biuret polyisocyanate, one of trimerization type polyisocyanate or a variety of.
6. organic covering pad according to any one of claim 1 to 5, which is characterized in that the afforestation waste
Including one of fallen leaves, grass cuttings, trees beta pruning and shrub beta pruning or a variety of.
7. organic covering pad according to any one of claim 1 to 5, which is characterized in that the afforestation waste
Partial size be 0.5~4cm, preferably 1~3cm.
8. organic covering pad according to claim 7, which is characterized in that the humidity of the afforestation waste be 10~
25%.
9. a kind of preparation method of organic covering pad described in any item of the claim 1 to 8, which is characterized in that including following
Step:
Glue is formed after Aqueous Polyurethane Adhesives and curing agent are mixed；
The glue is sprayed on the surface of afforestation waste, obtains mixture to be solidified；And
Cure under pressure is carried out to the mixture to be solidified, obtains organic covering pad.
10. preparation method according to claim 9, which is characterized in that carry out cure under pressure to the mixture to be solidified
The step of in, the mixture to be solidified is placed in mold, solidifies 6~12h under the pressure of 10~30KPa, is obtained described
Organic covering pad.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472769.7A CN109423230A (en) | 2017-06-20 | 2017-06-20 | Organic covering pad and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710472769.7A CN109423230A (en) | 2017-06-20 | 2017-06-20 | Organic covering pad and preparation method thereof |
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| CN109423230A true CN109423230A (en) | 2019-03-05 |
Family
ID=65497026
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| CN201710472769.7A Pending CN109423230A (en) | 2017-06-20 | 2017-06-20 | Organic covering pad and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113416379A (en) * | 2021-07-09 | 2021-09-21 | 动向国际科技股份有限公司 | Organic covering pad and preparation method thereof |
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