CN103848949A - Process of synthetizing polyurethane - Google Patents

Process of synthetizing polyurethane Download PDF

Info

Publication number
CN103848949A
CN103848949A CN201410082207.8A CN201410082207A CN103848949A CN 103848949 A CN103848949 A CN 103848949A CN 201410082207 A CN201410082207 A CN 201410082207A CN 103848949 A CN103848949 A CN 103848949A
Authority
CN
China
Prior art keywords
reactor
emulsion
prepolymer
add
triethylamine
Prior art date
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
CN201410082207.8A
Other languages
Chinese (zh)
Inventor
潘政权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI ZHENGHE RUBBER AND PLASTIC ALLOY Co Ltd
Original Assignee
ANHUI ZHENGHE RUBBER AND PLASTIC ALLOY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANHUI ZHENGHE RUBBER AND PLASTIC ALLOY Co Ltd filed Critical ANHUI ZHENGHE RUBBER AND PLASTIC ALLOY Co Ltd
Priority to CN201410082207.8A priority Critical patent/CN103848949A/en
Publication of CN103848949A publication Critical patent/CN103848949A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention relates to a process of synthetizing polyurethane. The process comprises the following steps: a, in the presence of dry inert gas, adding dehydrated polyether diol, castor oil, isophorone diisocyanate and dibutyltin dilaurate into a reactor, stirring, adding 1, 4-butanediol into the reactor, stirring and reacting, adding dimethylolpropionic acid, epoxy resin and trimethylolpropane into the reactor, reacting, cooling and adding methyl methacrylate to obtain a prepolymer; b, neutralizing and emulsifying the prepolymer at normal temperature by using triethylamine to obtain an emulsion A; c, neutralizing and emulsifying the prepolymer by using triethylamine to obtain an emulsion B; and d, heating the emulsion A and the emulsion B to 75-80 DEG C, adding an initiator, preserving the temperature for 2-3 hours, cooling and discharging to obtain the polyurethane. The process provided by the invention is simple, little in waste in the productive process and simple in production process and has the advantages that the produced polyurethane has good toughness, the raw material is saved and the energy consumption in the productive process is reduced.

Description

A kind of synthesis technique of urethane
Technical field
The invention belongs to organic synthesis field, be specifically related to a kind of synthesis technique of urethane.
Background technology
Urethane refers to a family macromolecule that contains amido formate feature unit in main chain.This macromolecular material is widely used in tamanori, coating, low speed tire, packing ring, the industrial circles such as car pad.Be used to manufacture various foams and plastic sponge at daily life field urethane.Urethane is also used to manufacture and medical devices.Urethane has good toughness and self-lubricating function, and use is now very extensive, has good use properties, the relative inorganic materials long service life of polyurethane material, result of use is good, but existing urethane synthesis technique is more complicated, and the waste material of generation is difficult for removing.
Summary of the invention
The synthesis technique that the object of this invention is to provide a kind of urethane, synthetic method is simple, and the middle waste material of generation is less, has reduced the discharge of refuse.
The present invention is achieved through the following technical solutions:
A kind of synthesis technique of urethane, comprise the following steps: a: under the protection of dry inert gas, add reactor to stir the polyether glycol dewatering, Viscotrol C, isophorone diisocyanate, dibutyl tin laurate, in reactor, add BDO, at 50-60 DEG C, stir 0.5-1h, in reactor, add dimethylol propionic acid, epoxy resin and TriMethylolPropane(TMP) again, reaction 0.3-1.2h, cooling, add methyl methacrylate, obtain PU/MMA prepolymer; B: by PU/MMA prepolymer with triethylamine at normal temperatures in and emulsification, obtain latex A; C, by PU/MMA prepolymer with triethylamine at 50-55 DEG C in and emulsification, obtain emulsion B; D, latex A and emulsion B are heated to 75-80 DEG C, add initiator azo-bis-isobutyl cyanide, insulation 2-3 hour, cooling discharge, obtains urethane.
Described polyether glycol 30-40 part, Viscotrol C 15-20 part, isophorone diisocyanate 35-50 part, dibutyl tin laurate 3-5 part, BDO 5-8 part.
Described dimethylol propionic acid 10-12 part, epoxy resin 8-10 part and TriMethylolPropane(TMP) 5-7 part.
Described methyl methacrylate 55-70 part.
Described azo-bis-isobutyl cyanide 4-6 part.Described triethylamine is 25-30 part.
Beneficial effect of the present invention: method provided by the invention is simple, the urethane of production has good toughness, and in production process, waste material is less, and production technique is simple, has saved raw material use, also reduces the energy consumption in production process.
Embodiment
A kind of synthesis technique of urethane, comprise the following steps: a: under the protection of dry inert gas, add reactor to stir 3 parts of 35 parts of the polyether glycols dewatering, 15 parts of Viscotrol C, 40 parts of isophorone diisocyanates, dibutyl tin laurate, in reactor, add 1,6 parts of 4-butyleneglycols, at 50-60 DEG C, stir 0.5-1h, again to adding 6 parts of 10 parts of dimethylol propionic acids, 10 parts of epoxy resin and TriMethylolPropane(TMP)s in reactor, reaction 0.3-1.2h, cooling, add 60 parts of methyl methacrylates, obtain PU/MMA prepolymer; B: by PU/MMA prepolymer with 10 parts of triethylamines at normal temperatures in and emulsification, obtain latex A; C, by PU/MMA prepolymer with during 20 parts of triethylamines are at 50-55 DEG C and emulsification, obtain emulsion B; D, latex A and emulsion B are heated to 75-80 DEG C, add 6 parts of initiator azo-bis-isobutyl cyanides, insulation 2-3 hour, cooling discharge, obtains urethane.

Claims (1)

1. the synthesis technique of a urethane, it is characterized in that, comprise the following steps: a: under the protection of dry inert gas, add reactor to stir the polyether glycol dewatering, Viscotrol C, isophorone diisocyanate, dibutyl tin laurate, in reactor, add 1,4-butyleneglycol, at 50-60 DEG C, stir 0.5-1h, in reactor, add dimethylol propionic acid, epoxy resin and TriMethylolPropane(TMP) again, reaction 0.3-1.2h, cooling, adds methyl methacrylate, obtains PU/MMA prepolymer; B: by PU/MMA prepolymer with triethylamine at normal temperatures in and emulsification, obtain latex A; C, by PU/MMA prepolymer with triethylamine at 50-55 DEG C in and emulsification, obtain emulsion B; D, latex A and emulsion B are heated to 75-80 DEG C, add initiator azo-bis-isobutyl cyanide, insulation 2-3 hour, cooling discharge, obtains urethane.
CN201410082207.8A 2014-03-07 2014-03-07 Process of synthetizing polyurethane Pending CN103848949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410082207.8A CN103848949A (en) 2014-03-07 2014-03-07 Process of synthetizing polyurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410082207.8A CN103848949A (en) 2014-03-07 2014-03-07 Process of synthetizing polyurethane

Publications (1)

Publication Number Publication Date
CN103848949A true CN103848949A (en) 2014-06-11

Family

ID=50857096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410082207.8A Pending CN103848949A (en) 2014-03-07 2014-03-07 Process of synthetizing polyurethane

Country Status (1)

Country Link
CN (1) CN103848949A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104356343A (en) * 2014-11-04 2015-02-18 佛山市功能高分子材料与精细化学品专业中心 Epoxy resin and castor oil double-modified polyurethane leather finishing agent and preparation method thereof
CN105052902A (en) * 2015-08-04 2015-11-18 清华大学 Sustained and controlled release pesticide nanometer emulsion and preparation method thereof
CN109651588A (en) * 2018-11-21 2019-04-19 万华化学集团股份有限公司 Castor oil modified cation self-crosslinkable polyurethane polyurea water dispersion and preparation method and application
CN112063259A (en) * 2020-08-12 2020-12-11 安徽省英菲尼科技股份有限公司 Halogen-free environment-friendly polyurethane oily paint and preparation method thereof
CN112080185A (en) * 2020-09-29 2020-12-15 湖北奥斯鸣环保科技有限公司 Waterborne polyurethane industrial paint and preparation method thereof
CN112111206A (en) * 2020-09-29 2020-12-22 湖北奥斯鸣环保科技有限公司 Flame-retardant high-polymer fireproof coating for steel structure and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060127435A1 (en) * 1999-07-03 2006-06-15 Termiguard, Inc. Sustained release pest control products and their applications
CN102786637A (en) * 2011-05-17 2012-11-21 上海富臣化工有限公司 Composite modified aqueous polyurethane resin and its preparation method
CN102807664A (en) * 2012-08-20 2012-12-05 陕西科技大学 Method for preparing acrylate modified water-based polyurethane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060127435A1 (en) * 1999-07-03 2006-06-15 Termiguard, Inc. Sustained release pest control products and their applications
CN102786637A (en) * 2011-05-17 2012-11-21 上海富臣化工有限公司 Composite modified aqueous polyurethane resin and its preparation method
CN102807664A (en) * 2012-08-20 2012-12-05 陕西科技大学 Method for preparing acrylate modified water-based polyurethane

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘厚钧主编: "《聚氨酯弹性体手册 第2版》", 31 August 2012, article "水性聚氨酯分散液的物理化学", pages: 392 - 394 *
李正军等编著: "《皮革涂饰剂与整饰技术》", 31 July 2002, article "乳化条件", pages: 51-52 *
许戈文等编著: "《水性聚氨酯材料》", 28 February 2007, article "水乳性聚氨酯的合成", pages: 61 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104356343A (en) * 2014-11-04 2015-02-18 佛山市功能高分子材料与精细化学品专业中心 Epoxy resin and castor oil double-modified polyurethane leather finishing agent and preparation method thereof
CN105052902A (en) * 2015-08-04 2015-11-18 清华大学 Sustained and controlled release pesticide nanometer emulsion and preparation method thereof
CN105052902B (en) * 2015-08-04 2018-02-09 清华大学 Slow controlled release pesticide nano emulsion and preparation method thereof
CN109651588A (en) * 2018-11-21 2019-04-19 万华化学集团股份有限公司 Castor oil modified cation self-crosslinkable polyurethane polyurea water dispersion and preparation method and application
CN109651588B (en) * 2018-11-21 2021-09-07 万华化学集团股份有限公司 Castor oil modified cationic self-crosslinking polyurethane polyurea aqueous dispersion, preparation method and application
CN112063259A (en) * 2020-08-12 2020-12-11 安徽省英菲尼科技股份有限公司 Halogen-free environment-friendly polyurethane oily paint and preparation method thereof
CN112080185A (en) * 2020-09-29 2020-12-15 湖北奥斯鸣环保科技有限公司 Waterborne polyurethane industrial paint and preparation method thereof
CN112111206A (en) * 2020-09-29 2020-12-22 湖北奥斯鸣环保科技有限公司 Flame-retardant high-polymer fireproof coating for steel structure and preparation method thereof

Similar Documents

Publication Publication Date Title
CN103848949A (en) Process of synthetizing polyurethane
CN106220817A (en) A kind of no-solvent type interior leather for automobiles intermediate layer polyurethane resin and preparation method thereof
CN101824299B (en) Method for preparing single-component high-solid content water-based polyurethane adhesive
CN110218440B (en) Preparation method of ultraviolet-curable castor oil-based antibacterial waterborne polyurethane emulsion
CN102911635A (en) Energy-saving and environment-friendly tire sealant and manufacturing method thereof
CN103923266A (en) Synthesis method of polyurethane
CN108503783B (en) Thermoplastic polyurethane elastomer and preparation method thereof
FR2981657B1 (en) ADHESIVE POLYURETHANE COMPOSITION FOR THE PRODUCTION OF AGGLOMERS
CN107057627A (en) The preparation method of footwear environment-friendly type high performance water adhesive for polyurethane
CN101220241A (en) Double-component high-strength polyurethane waterproof coating material
CN102241956A (en) Poly(propylene carbonate)-based water-borne polyurethane adhesive and preparation method thereof
CN101967222A (en) Preparation method of epoxidized castor oil modified water-borne polyurethane
CN104017532A (en) High-strength solvent-free polyurethane adhesive and preparation method thereof
CN104140520A (en) Super-soft high-elasticity hydrolysis resistance high-stripping wet polyurethane resin and preparation method thereof
CN101503499A (en) Wet low modulus ultra-soft high peel strength polyurethane resin for synthetic leather and preparation thereof
CN103305177A (en) Preparation method of single-component polyurethane adhesive
JP6048159B2 (en) Method for producing polyurethane
KR20100022943A (en) Process for the production of polyurethane urea resin dispersions
CN106188475A (en) A kind of bio-based Polyurethane Thermoplastic Elastomer and preparation method thereof
CN115558074B (en) Polyurethane elastomer and preparation method thereof
KR100536858B1 (en) Process for decomposing and recovering isocyanate compound
CN107189746A (en) Reactive polyurethane medical adhesive and preparation method thereof
JP2012504180A5 (en)
CN101407573A (en) Polyurethane runway rubber
JPH10310663A (en) Process for decomposing and recovering polyurethane resin

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20140611