CN106832215A - Polyurethane water holding controlled release fertilizer and preparation method thereof - Google Patents

Polyurethane water holding controlled release fertilizer and preparation method thereof Download PDF

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Publication number
CN106832215A
CN106832215A CN201710104025.XA CN201710104025A CN106832215A CN 106832215 A CN106832215 A CN 106832215A CN 201710104025 A CN201710104025 A CN 201710104025A CN 106832215 A CN106832215 A CN 106832215A
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CN
China
Prior art keywords
component
controlled release
water holding
polyurethane water
fertilizer
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710104025.XA
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Chinese (zh)
Inventor
耿佃勇
荆晓东
董伟
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Individual
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Individual
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Priority to CN201710104025.XA priority Critical patent/CN106832215A/en
Publication of CN106832215A publication Critical patent/CN106832215A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G1/00—Mixtures of fertilisers belonging individually to different subclasses of C05
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Fertilizers (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The present invention relates to a kind of polyurethane water holding controlled release fertilizer and preparation method thereof, it is made up according to following parts by weight of component A and B component：Component A：PPG ED-2810~20 part；PPG DEP-505S25~75 part；0.2~3 part of water；0.6~0.8 part of foam stabiliser；0.02~0.50 part of amine catalyst；0.02~0.50 part of tin catalyst；B component：Polyisocyanates TDI-802~19 part；Component C：70~90 parts of composite fertilizer.The present invention has water-absorbing-retaining ability; the characteristics of " controlled release " is also achieved to moisture, improve China's most area and the uneven problem of drought and waterlogging often occur, increase grain yield, environment-friendly; simultaneously to " controlled release " of soil moisture; the water holding controlled release fertilizer of making can be degradable; fertilizer degraded can improve the gas permeability of soil, protection soil property, environment-friendly.

Description

Polyurethane water holding controlled release fertilizer and preparation method thereof
Technical field
The invention belongs to chemical field, and in particular to a kind of polyurethane water holding controlled release fertilizer and preparation method thereof.
Background technology
Release and release control fertilizer, is the advanced form of slow release fertilizer, and the release of nutrient is mainly controlled by coating, reach safety, The purpose such as long-acting, efficient, is the Main way of modern Fertilizer development, and suitable mechanization production particularly meets seed manure with the need broadcast Wait.
Controlled Release Fertilizer extends the decomposition of fertilizer, release time by modes such as coating, parcel, addition inhibitor, is conducive to The utilization rate of fertilizer nutrient is improved, so as to the purpose for reaching the extension fertilizer term of validity, promoting agricultural volume increase.It is that Ministry of Agriculture's emphasis is pushed away One of wide fertilizer.
Common Controlled Release Fertilizer is roughly divided into：Sulphur is coated (fertilizer bag fertilizer), resin coating, urease inhibitorses etc., common common fertilizer Only " controlled release " effect.
The content of the invention
It is an object of the invention to provide a kind of polyurethane water holding controlled release fertilizer and preparation method thereof, absorbed water using special urethane Material does and is coated, and does not only have " controlled release " effect, and has water-absorbing-retaining ability, can largely absorb rainy, irrigation moisture and delay On The Drug Release, the characteristics of " controlled release " is also achieved to moisture, improve China's most area often occur the uneven problem of drought and waterlogging, Increasing grain yield, fertilizer degraded can improve the gas permeability of soil, protection soil property, environment-friendly；The present invention also provides its preparation Method, preparation method is simply easily implemented.
A kind of polyurethane water holding controlled release fertilizer of the present invention, is made up of component A and B component according to following parts by weight：
Component A：
B component：
2~19 parts of polyisocyanates TDI-80；
Component C：
70~90 parts of composite fertilizer.
PPG ED-28 is 2 degrees of functionality, the PPG of molecular weight 4000.
PPG DEP-505S is 3 degrees of functionality, the grafted polyether polyol of molecular weight 3300.
Foam stabiliser is foam stabiliser L-580.Foam stabiliser L-580, stable foam and regulation abscess, emulsification bubble The effect of foam material.
Amine catalyst is amine catalyst A33.
Tin catalyst is stannous octoate.
The preparation method of described polyurethane water holding controlled release fertilizer,
Add agitator to be well mixed component A, each raw material of component C, adjust constant 20-30 DEG C of material temperature, adjust agitator Rotating speed will be preheated to 20-30 DEG C of B component and pour into A, component C batch mixing and stir 0.5-2h to 100-500r/min.
In preparation process, regulation agitator speed to 100-500r/min, the rotating speed using this scope is not destroying coating In the case of can fully mix each group sub-material.Mixing time is 0.5-2h.Mixing time more long can avoid fertilizer hardened It is blocking.
The manufacturer of PPG ED-28 is the federal chemistry Industrial Co., Ltd of Zibo moral letter, uses this kind of polyalcohol The coating surface for doing is smooth, and coating compaction strength is high, and water holding capacity is strong.
The manufacturer of PPG DEP-505S is the federal chemistry Industrial Co., Ltd of Zibo moral letter, with this kind of polynary Rationally, water-absorbing-retaining ability is strong for the coating degradation time that alcohol does.
Polyisocyanates TDI-80 manufacturers are Yantai Wanhua Group Plc, and this kind of polyisocyanates is done Products molecule compound with regular structure, water holding capacity is strong, cheap.
The manufacturer of A33 is gas chemical products company of the U.S., mainly using its high activity, to gel reaction and hair Stronger catalytic action is played in bubble reaction.
Tin catalyst is stannous octoate.Cross-linking reaction is improved, expands strand, increase the intensity being coated.
Compared with prior art, the invention has the advantages that：
The present invention is done using special urethane absorbent material and is coated, and does not only have " controlled release " effect, and have water-absorbing-retaining energy Power, can largely absorb it is rainy, irrigate and moisture and slowly discharge, the characteristics of " controlled release " is also achieved to moisture, improve China Often there is the uneven problem of drought and waterlogging, increases grain yield, environment-friendly in most area.The water holding controlled release fertilizer of making is realized The function of common release and release control fertilizer, while to " controlled release " of soil moisture, solving the problems, such as agricultural common " living at the mercy of the elements ", system The water holding controlled release fertilizer of work can be degradable, and fertilizer degraded can improve the gas permeability of soil, protection soil property, environment-friendly.The present invention Its preparation method is also provided, preparation method is simply easily implemented.
Specific embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of polyurethane water holding controlled release fertilizer of the present invention, is made up of component A and B component according to following parts by weight：
Component A：
B component：
10 parts of polyisocyanates TDI-80；
Component C：
80 parts of composite fertilizer.
PPG ED-28 is 2 degrees of functionality, the PPG of molecular weight 4000.
PPG DEP-505S is 3 degrees of functionality, the grafted polyether polyol of molecular weight 3300.
Foam stabiliser is foam stabiliser L-580.
Amine catalyst is amine catalyst A33.
Tin catalyst is stannous octoate.
The preparation method of described polyurethane water holding controlled release fertilizer：
Add agitator to be well mixed component A, each raw material of component C, adjust constant 25 DEG C of material temperature, adjust agitator speed To 300r/min, 25 DEG C of B component will be preheated to pour into A, component C batch mixing and stir 1h.
Embodiment 2
A kind of polyurethane water holding controlled release fertilizer of the present invention, is made up of component A and B component according to following parts by weight：
Component A：
B component：
19 parts of polyisocyanates TDI-80；
Component C：
70 parts of composite fertilizer.
PPG ED-28 is 2 degrees of functionality, the PPG of molecular weight 4000.
PPG DEP-505S is 3 degrees of functionality, the grafted polyether polyol of molecular weight 3300.
Foam stabiliser is foam stabiliser L-580.
Amine catalyst is amine catalyst A33.
Tin catalyst is stannous octoate.
The preparation method of described polyurethane water holding controlled release fertilizer：
Add agitator to be well mixed component A, each raw material of component C, adjust constant 20 DEG C of material temperature, adjust agitator speed To 500r/min, 20 DEG C of B component will be preheated to pour into A, component C batch mixing and stir 2h.
Embodiment 3
A kind of polyurethane water holding controlled release fertilizer of the present invention, is made up of component A and B component according to following parts by weight：
Component A：
B component：
2 parts of polyisocyanates TDI-80；
Component C：
90 parts of composite fertilizer.
PPG ED-28 is 2 degrees of functionality, the PPG of molecular weight 4000.
PPG DEP-505S is 3 degrees of functionality, the grafted polyether polyol of molecular weight 3300.
Foam stabiliser is foam stabiliser L-580.
Amine catalyst is amine catalyst A33.
Tin catalyst is stannous octoate.
The preparation method of described polyurethane water holding controlled release fertilizer：
Add agitator to be well mixed component A, each raw material of component C, adjust constant 30 DEG C of material temperature, adjust agitator speed To 300r/min, 30 DEG C of B component will be preheated to pour into A, component C batch mixing and stir 0.5h.

Claims (7)

1. a kind of polyurethane water holding controlled release is fertile, it is characterised in that：It is made up according to following parts by weight of component A and B component：
Component A：
B component：
2~19 parts of polyisocyanates TDI-80；
Component C：
70~90 parts of composite fertilizer.
2. polyurethane water holding controlled release according to claim 1 is fertile, it is characterised in that：PPG ED-28 is 2 functions Degree, the PPG of molecular weight 4000.
3. polyurethane water holding controlled release according to claim 1 is fertile, it is characterised in that：PPG DEP-505S is 3 officials Energy degree, the grafted polyether polyol of molecular weight 3300.
4. polyurethane water holding controlled release according to claim 1 is fertile, it is characterised in that：Foam stabiliser is foam stabiliser L- 580。
5. polyurethane water holding controlled release according to claim 1 is fertile, it is characterised in that：Amine catalyst is amine catalyst A33.
6. polyurethane water holding controlled release according to claim 1 is fertile, it is characterised in that：Tin catalyst is stannous octoate.
7. the preparation method of any described polyurethane water holding controlled release fertilizer of a kind of claim 1-6, it is characterised in that：
Add agitator to be well mixed component A, each raw material of component C, adjust constant 20-30 DEG C of material temperature, adjust agitator speed To 100-500r/min, 20-30 DEG C of B component will be preheated to pour into A, component C batch mixing and stir 0.5-2h.
CN201710104025.XA 2017-02-24 2017-02-24 Polyurethane water holding controlled release fertilizer and preparation method thereof Pending CN106832215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710104025.XA CN106832215A (en) 2017-02-24 2017-02-24 Polyurethane water holding controlled release fertilizer and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710104025.XA CN106832215A (en) 2017-02-24 2017-02-24 Polyurethane water holding controlled release fertilizer and preparation method thereof

Publications (1)

Publication Number Publication Date
CN106832215A true CN106832215A (en) 2017-06-13

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1948395A (en) * 2006-10-11 2007-04-18 武汉理工大学 Water retaining fertilizer retaining multifunction polymer composite material and its preparation method
CN103265684A (en) * 2013-05-24 2013-08-28 淄博德信联邦化学工业有限公司 Polyurethane resin coating material, and preparation process and application thereof
CN104292025A (en) * 2014-10-30 2015-01-21 潘虹 Special water-holding and controlled-release fertilizer for wheat
CN104910919A (en) * 2014-03-11 2015-09-16 江苏瑞丰科技实业有限公司 Soil heavy metal cleaning improving material
CN105131191A (en) * 2015-09-04 2015-12-09 高明志 Two-component modified polyurethane sustained or controlled release coating material with chelation function
CN105418884A (en) * 2015-12-24 2016-03-23 山东一诺威新材料有限公司 Polyurethane combined polyether used for slowly-controlled-release fertilizer coating film, preparation method and application thereof
CN105968311A (en) * 2016-07-21 2016-09-28 淄博德信联邦化学工业有限公司 Polyurethane flower mud and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1948395A (en) * 2006-10-11 2007-04-18 武汉理工大学 Water retaining fertilizer retaining multifunction polymer composite material and its preparation method
CN103265684A (en) * 2013-05-24 2013-08-28 淄博德信联邦化学工业有限公司 Polyurethane resin coating material, and preparation process and application thereof
CN104910919A (en) * 2014-03-11 2015-09-16 江苏瑞丰科技实业有限公司 Soil heavy metal cleaning improving material
CN104292025A (en) * 2014-10-30 2015-01-21 潘虹 Special water-holding and controlled-release fertilizer for wheat
CN105131191A (en) * 2015-09-04 2015-12-09 高明志 Two-component modified polyurethane sustained or controlled release coating material with chelation function
CN105418884A (en) * 2015-12-24 2016-03-23 山东一诺威新材料有限公司 Polyurethane combined polyether used for slowly-controlled-release fertilizer coating film, preparation method and application thereof
CN105968311A (en) * 2016-07-21 2016-09-28 淄博德信联邦化学工业有限公司 Polyurethane flower mud and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
（德）厄特尔（OERTEL，GUNTER）编著，阎家宾等译校: "《聚氨酯手册》", 30 September 1992, 中国石化出版社 *

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Application publication date: 20170613

RJ01 Rejection of invention patent application after publication