CN106117494A - A kind of PVC glove coating preparation method of polyurethane-modified corn starch - Google Patents

A kind of PVC glove coating preparation method of polyurethane-modified corn starch Download PDF

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Publication number
CN106117494A
CN106117494A CN201610512048.XA CN201610512048A CN106117494A CN 106117494 A CN106117494 A CN 106117494A CN 201610512048 A CN201610512048 A CN 201610512048A CN 106117494 A CN106117494 A CN 106117494A
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CN
China
Prior art keywords
corn starch
molar part
pvc glove
polyurethane
modified corn
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Pending
Application number
CN201610512048.XA
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Chinese (zh)
Inventor
刘都宝
刘藏
陶杰
鲍俊杰
赵洪涛
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Anhui Zhong En Chemical Co Ltd
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Anhui Zhong En Chemical Co Ltd
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Priority to CN201610512048.XA priority Critical patent/CN106117494A/en
Publication of CN106117494A publication Critical patent/CN106117494A/en
Pending legal-status Critical Current

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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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
    • 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
    • C08G18/6484—Polysaccharides and derivatives thereof
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C08J2475/06—Polyurethanes from polyesters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Gloves (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

The present invention provides the preparation method of the polyurethane-modified corn starch of a kind of PVC glove coating, specifically 15～30 molar part aliphatic isocyanates and 5～15 molar part PEPAs are dissolved in acetone, it is warming up to 65～80 DEG C, after reaction 2～3 h, obtain performed polymer, it is warming up to 65～75 DEG C, add 0.5～5 molar part dihydromethyl propionic acids, 0.5～2 molar part butanediols and the 10～20 hydroxypropyl modified corn starch of molar part or corn starchs, chain extending reaction 0.5～1.0 h, after being down to room temperature, add 0.5～5 molar part triethylamines under high velocity agitation, add water emulsification, acetone is sloughed in decompression distillation, obtain the polyurethane-modified corn starch of PVC glove coating.PVC glove coating prepared by the present invention with polyurethane-modified corn starch for PVC glove coating time, tissue adhesion, without powder, easy donning, do not stimulate, substantially increase the performance of PVC glove coating.

Description

A kind of PVC glove coating preparation method of polyurethane-modified corn starch
Technical field
The present invention relates to PVC glove coatings art, specifically a kind of PVC glove coating is formed sediment with polyurethane-modified Semen Maydis The preparation method of powder.
Background technology
Disposable PVC glove is the disposable plastic gloves of macromolecule, is product with fastest developing speed in gloves for protection industry. Medical personnel and food industry service personal why compare favor these glove, be because PVC glove donning comfortable, use spirit Live, without any natural emulsion composition, anaphylaxis will not be produced.But the most surface treated PVC glove difficulty is dressed, so PVC glove will carry out surface process before use, and the most conventional is at glove surface powder coating or corn starch, but makes Processing with Pulvis Talci, corn starch, can cause pollution in process of production, Pulvis Talci may also result in part population and wears Wear PVC glove allergy.Although PVC glove polyurethane finishing agent is non-stimulated, easy donning, but tissue adhesion slightly inferior properties.
Summary of the invention
It is an object of the invention to provide the preparation method of the polyurethane-modified corn starch of a kind of PVC glove coating, should PVC glove coating prepared by method with polyurethane-modified corn starch for PVC glove coating time, have tissue adhesion, without powder, easily The advantages such as wearing, not stimulation, substantially increase the performance of PVC glove coating.
For achieving the above object, the invention provides the preparation of the polyurethane-modified corn starch of a kind of PVC glove coating Method, comprises the following steps:
(1) 15～30 molar part aliphatic isocyanates and 5～15 molar part PEPAs are dissolved in 15～40 molar part third In ketone, it is warming up to 65～80 DEG C, after reaction 2～3 h, obtains performed polymer；
(2) performed polymer that step (1) obtains is warming up to 65～75 DEG C, be subsequently adding 0.5～5 molar part dihydromethyl propionic acids, 0.5～2 molar part butanediols and 10～20 molar part corn starchs or hydroxypropyl modified corn starch, chain extending reaction 0.5～1.0 h；
(3) after being down to room temperature, adding 0.5～5 molar part triethylamines under high velocity agitation, add water emulsification, decompression distillation sloughs third Ketone, obtains the polyurethane-modified corn starch of PVC glove coating.
The advantage of polyurethane and starch is combined by the present invention, and the polyurethane-modified corn starch of preparation is for PVC hands During set coating, there is tissue adhesion, without advantages such as powder, easy donning, not stimulations, substantially increase the performance of PVC glove coating.
Detailed description of the invention
Invention is further illustrated below in conjunction with embodiment.
Embodiment 1
The PVC glove coating preparation method of polyurethane-modified corn starch, comprises the following steps:
(1) 1.5 mol aliphatic isocyanates and 0.5 mol polyester diol are dissolved in 2.0 mol acetone, are warming up to 65 DEG C, after reacting 2.5 h, obtain performed polymer；
(2) performed polymer that step (1) obtains is warming up to 75 DEG C, is subsequently adding 0.5 mol dihydromethyl propionic acid, 0.05 mol Part butanediol and the 1.5 hydroxypropyl modified corn starch of mol part or corn starchs, chain extending reaction 1.0 h；
(2) after being down to room temperature, adding 0.5 mol triethylamine under high velocity agitation, add water emulsification, acetone is sloughed in decompression distillation, To the polyurethane-modified corn starch of PVC glove coating.
Embodiment 2
The PVC glove coating preparation method of polyurethane-modified corn starch, comprises the following steps:
(1) 3.0 mol aliphatic isocyanates and 1.5 mol polyester diol are dissolved in 4.0 mol acetone, are warming up to 70 DEG C, after reacting 3 h, obtain performed polymer；
(2) performed polymer that step (1) obtains is warming up to 65 DEG C, is subsequently adding 0.05 mol dihydromethyl propionic acid, 0.2mol fourth Glycol and the hydroxypropyl modified corn starch of 2.0 mol or corn starch, chain extending reaction 1 h；
(2) after being down to room temperature, adding 0.05 mol triethylamine under high velocity agitation, add water emulsification, acetone is sloughed in decompression distillation, To the polyurethane-modified corn starch of PVC glove coating.
Embodiment 3
The PVC glove coating preparation method of polyurethane-modified corn starch, comprises the following steps:
(1) 2.0 mol aliphatic isocyanates and 1.0 mol polyester diol are dissolved in 1.5 mol acetone, are warming up to 80 DEG C, after reacting 2.0 h, obtain performed polymer；
(2) performed polymer that step (1) obtains is warming up to 75 DEG C, is subsequently adding 0.2 mol dihydromethyl propionic acid, 0.1 mol part Butanediol and the hydroxypropyl modified corn starch of 1.0 mol or corn starch, chain extending reaction 0.5 h；
(2) after being down to room temperature, adding 0.2 mol triethylamine under high velocity agitation, add water emulsification, acetone is sloughed in decompression distillation, To the polyurethane-modified corn starch of PVC glove coating.
Polyurethane-modified corn starch above-described embodiment 1～embodiment 3 prepared, the organosilicon moistening of addition 0.1% is equal After even mixing, it is coated in PVC glove, takes a dozen PVC glove handled well, fill water and carry out hanging water test, after 7 days, observe The dropping situations of coating；Take the PVC glove that another dozen is handled well, 90 DEG C, place 120 h under 0.2 Mpa pressure, detection is coated with The adhesion situation of layer；Take a dozen PVC glove handled well again, under frictiograph 0.1 Mpa pressure, rub 20 times, observe coating Adhesive force situation, its result is as shown in table 1:
Performance test after the polyurethane-modified corn starch that table 1 embodiment 1～embodiment 3 prepare is coated in PVC glove is tied Really:
As it can be seen from table 1 the polyurethane-modified corn starch of invention prepared by the present invention is when for PVC glove coating, have Tissue adhesion, without advantages such as powder (i.e. coating does not falls off), easy donning, not stimulations, substantially increase the performance of PVC glove coating.

Claims (1)

1. the PVC glove coating preparation method of polyurethane-modified corn starch, it is characterised in that comprise the following steps:
(1) 15～30 molar part aliphatic isocyanates and 5～15 molar part PEPAs are dissolved in 15～40 molar part third In ketone, it is warming up to 65～80 DEG C, after reaction 2～3 h, obtains performed polymer；
(2) performed polymer that step (1) obtains is warming up to 65～75 DEG C, be subsequently adding 0.5～5 molar part dihydromethyl propionic acids, 0.5～2 molar part butanediols and 10～20 molar part corn starchs or hydroxypropyl modified corn starch, chain extending reaction 0.5～1.0 h；
(3) after being down to room temperature, adding 0.5～5 molar part triethylamines under high velocity agitation, add water emulsification, decompression distillation sloughs third Ketone, obtains the polyurethane-modified corn starch of PVC glove coating.
CN201610512048.XA 2016-07-02 2016-07-02 A kind of PVC glove coating preparation method of polyurethane-modified corn starch Pending CN106117494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610512048.XA CN106117494A (en) 2016-07-02 2016-07-02 A kind of PVC glove coating preparation method of polyurethane-modified corn starch

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114163892A (en) * 2021-12-23 2022-03-11 东莞建泰生物科技有限公司 Starch modification method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101173095A (en) * 2007-09-29 2008-05-07 山东东大一诺威聚氨酯有限公司 Non-powder PVC gloves aquosity polyurethane composition and method for producing the same
CN104119493A (en) * 2014-08-05 2014-10-29 苏州巨联科技有限公司 Soft dry-process waterproof air/moisture-permeable polyurethane resin and preparation method thereof
CN104419313A (en) * 2013-09-05 2015-03-18 无锡新亚安全用品有限公司 Waterborne polyurethane composition for powder-free PVC gloves and preparation method of waterborne polyurethane composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101173095A (en) * 2007-09-29 2008-05-07 山东东大一诺威聚氨酯有限公司 Non-powder PVC gloves aquosity polyurethane composition and method for producing the same
CN104419313A (en) * 2013-09-05 2015-03-18 无锡新亚安全用品有限公司 Waterborne polyurethane composition for powder-free PVC gloves and preparation method of waterborne polyurethane composition
CN104119493A (en) * 2014-08-05 2014-10-29 苏州巨联科技有限公司 Soft dry-process waterproof air/moisture-permeable polyurethane resin and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王焕等: "淀粉改性可生物降解水性聚氨酯的研究进展", 《涂料技术与文摘》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114163892A (en) * 2021-12-23 2022-03-11 东莞建泰生物科技有限公司 Starch modification method
CN114163892B (en) * 2021-12-23 2022-05-10 东莞建泰生物科技有限公司 Starch modification method

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Application publication date: 20161116