CN105504673A - Nnon-inflammable melamine electric appliance shell material - Google Patents
Nnon-inflammable melamine electric appliance shell material Download PDFInfo
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- CN105504673A CN105504673A CN201510960338.6A CN201510960338A CN105504673A CN 105504673 A CN105504673 A CN 105504673A CN 201510960338 A CN201510960338 A CN 201510960338A CN 105504673 A CN105504673 A CN 105504673A
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- Prior art keywords
- trimeric cyanamide
- agent
- grade
- fire
- electrical enclosure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/32—Modified amine-aldehyde condensates
-
- 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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/40—Chemically modified polycondensates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a non-inflammable melamine electric appliance shell material. The material is made by mixing and mold pressing 100 parts of melamine-starch modified resin, 9-14 parts of curing agent, 0.3-0.5 part of antifoaming agent, 0.5-1 part of flexibility enhancing agent, 0.01-0.03 part of coupling agent, 5-8 parts of reinforcing agent, 18-25 parts of filling agent and 0-10 parts of colorant. The material solves the problems that an electric appliance shell is inflammable and prone to high temperature deformation. According to the preparation method, cellulose, the reinforcing agent, the colorant and other filling agents are added into the melamine-starch modified resin, and the mixture is subjected to compression molding to obtain a non-inflammable melamine electric appliance shell. The obtained resin material is not inflammable, resistant to shock and good in coloring, the thermal deformation temperature can reach 380 DEG C, the decomposition temperature reaches 465 DEG C, and the material can be recovered and reused and can also degrade naturally.
Description
Technical field
The invention belongs to the compositions field containing organic high molecular compound, be specifically related to a kind of composition containing cyanurotriamide modified resin.
Background technology
Electric appliance casing is one of electric equipment products important component part, the function such as play support, protection, heat radiation, insulation, sound insulation, amplify, the most common in daily life.Processed by manufacture method such as mold pressing, injection moulding, bonding, riveted joints according to different application demands.The sector requires that smooth in appearance beautiful, acid and alkali-resistance, plasticity-are well easily processed qualitative, good insulation preformance, had certain anchorage force, anti-ultraviolet property good, not easily aging.Existing electric appliance casing installing material is divided into three kinds, metal material, plastic material and wood quality.Metal material cost is high, not acid and alkali-resistance, easily get rusty, easy conductive, easily produce electrostatic.Plastic material is inflammable, high temperature deformation.Wood quality is inflammable, moisture absorption after strain incisal guide electricity.
Terpolycyantoamino-formaldehyde resin has the characteristic that fire prevention is not fired, such as application number is 200710135149.0 patents of invention being called " a kind of new method for synthesizing melamine formaldehyde resin ", disclose the preparation method comprising material dissolution, polymerization and termination, comprise: described termination use temperature is that the water of 18-100 DEG C detects, trolamine terminator termination reaction is added when there is milky turbidity, if this resin is for processing melamine, add after then adding terminator that temperature is 80-85 DEG C, pH value is the water of 8-9 again, stir.The resin of this patented method synthesis proves through test, and its shock resistance can reach electric appliance casing and use standard, and flexility is poor, easily collapses broken.
Summary of the invention
For the weak point that this area exists, the object of the invention is to propose one and do not fire a grade trimeric cyanamide electrical enclosure material.
Another object of the present invention does not fire a grade application for trimeric cyanamide electrical enclosure material described in proposition.
For the technical scheme realizing above-mentioned purpose of the present invention is:
One does not fire a grade trimeric cyanamide electrical enclosure material, is to be pressed into by following composition hybrid guided mode: trimeric cyanamide starch conversion resin 100 parts, 9 ~ 14 parts, solidifying agent, defoamer 0.3 ~ 0.5 part, flexibilizing agent 0.5-1 part, coupling agent 0.01-0.03 part
,toughener 5-8 part, weighting agent 18-25 part, look mother 0 ~ 10 part.
Masterbatch adds according to the concrete color of section bar interior trim, then do not add when not needing painted.
Wherein, described solidifying agent is one or more in oxalic acid, formic acid, phosphoric acid, tosic acid, ammonium chloride, magnesium sulfate; Described defoamer is: one or more in silicone emulsion, polypropylene glycerol aether, polyoxyethylene glycerol ether, polydimethylsiloxane; Described flexibilizing agent is: one or more in polyoxyethylene glycol, self-crosslinking styrene-acrylate polymers, polyvinyl butyral acetal, phthalate, benzoic anhydride polyester polyol, isocyanic ester; Described coupling agent is HK-560 or HK-550.
Need the demand such as mold pressing, assembling in practice for electric appliance casing, flexibilizing agent is preferably benzoic anhydride polyester polyol with isocyanate than 1:0.3 mixture.(mixing under normal temperature).There is intermolecular interaction in the flexibilizing agent added in raw material, be that the electric appliance casing reached has better processability in compression molding process.
Wherein, described toughener is: one or more in calcium silicate whisker, active micro silicon powder, carboxymethyl cellulose, white carbon black; Described weighting agent is: 100-150 object rutile titanium white powder, silicon-dioxide, wood powder, active micro silicon powder, calcium oxide, magnesium oxide, aluminium hydroxide, magnesium hydroxide) in one or more.
Further, the preparation method of described trimeric cyanamide starch conversion resin comprises step:
1) add 100 parts of water after adding maize amylose 13-25 mass parts in a kettle., stir and heat to 60 ~ 90 DEG C, make starch pasting;
2) catalyzer 3-5 gram is added, be warming up to 95 DEG C of reaction 90min, stop dripping when dropping pH value regulator to pH value is 10, Temperature fall to 72 ~ 76 DEG C add paraformaldehyde 5 ~ 12 mass parts, polyvinyl alcohol 5 mass parts, keep 30min after whole dissolving, now liquid is clear state.
3) add trimeric cyanamide 13 ~ 25 mass parts, adjust ph is 10, and every 30min pH value regulator control pH value remains between 9 ~ 10, and after reaction continues 2.5 ~ 3h, liquid becomes clarification again, stops adding conditioning agent and continues to react.
4) stir rapidly to adding sodium carbonate 3 mass parts during 170mpa/s in detection viscosity, viscosity increases sharply, stopped reaction when viscosity is 1000mpa/s,
Wherein, described step 2) in catalyzer be: one or more in Mono Chloro Acetic Acid, 60 ~ 70% dilute sulphuric acids, 20 ~ 30% dilute hydrochloric acid.
Described pH value regulator is: the saturated aqueous solution of one or more in sodium hydroxide, sodium carbonate, calcium hydroxide, calcium oxide.
Wherein, step 4) take out material after reaction, drying or vacuum hydro-extraction, to solid form, obtain trimeric cyanamide starch conversion resin, are crushed to 800 ~ 1200 orders, prepare for section bar
Wherein, the condition of molding of described section bar is: after the mixing of each composition, high speed dispersion evenly, to be put in mould under moulding press 30 ~ 60KG pressure 120 DEG C of compactings 10 minutes, to suppress 20 minutes at 140 DEG C.
Grade trimeric cyanamide electrical enclosure material of not firing of the present invention is preparing the application in electrical equipment.
Beneficial effect of the present invention is:
The material that the present invention proposes, solves that electric appliance casing is inflammable, the problem of high temperature deformation.The preparation method that the present invention proposes, adds the weighting agents such as Mierocrystalline cellulose, toughener, look mother, is not fired a grade trimeric cyanamide electric appliance casing through compression molding in trimeric cyanamide-starch conversion resin.Obtain resin material not fire, shock resistance, painted good, heat-drawn wire can to 380 DEG C, and decomposition temperature reaches 465 DEG C, recyclablely again utilize, also can natural degradation
Embodiment
Following examples for illustration of the present invention, but should not be used for limiting the scope of the invention.
The equipment component used in embodiment is: three mouthfuls of reactors, Jining Heng Tai Chemical Co., Ltd.; Automatic stirring temperature controller, Jining Heng Tai Chemical Co., Ltd.; Viscosity analyser, Jining Heng Tai Chemical Co., Ltd., pH determinator, Jining Heng Tai Chemical Co., Ltd., moisture detector, Jining Heng Tai Chemical Co., Ltd.; Vacuum drying box, Nanjing color coating mechanical means company limited.
In embodiment, if no special instructions, means used are this area routine techniques means.
Embodiment 1: the preparation of trimeric cyanamide starch conversion resin
In three mouthfuls of reactors, add maize amylose 18 grams, add 100 grams of distilled water, stirring heats 80 DEG C makes starch pasting, and add 20% dilute hydrochloric acid (mass concentration) catalyzer 3 grams, now pH value is 5.3;
Be warming up to 95 DEG C of reaction 90min, be added dropwise to sodium hydroxide saturated solution 9 grams, now pH value determination is 10, stops titration, Temperature fall to 75 DEG C.
Add paraformaldehyde 10 grams, polyvinyl alcohol 5 grams keeps 30min after all dissolving, now liquid is clear state.Add trimeric cyanamide 20 grams and be 10 with sodium hydroxide saturated solution adjust ph, and often 30min adjust ph remains on 10.Reaction continues 2.5 liquid and again becomes clarification, and now stop adding conditioning agent and continue reaction 2 hours, pH value reduces to 7.
The viscosity measurements of material in reactor is 170mpa/s, add 3 grams, sodium carbonate to stir rapidly, material viscosity increases sharply, and stops stirring when viscosity is 1000mpa/s, take out from reactor, put into vacuum drying box 80 DEG C of vacuum hydro-extraction to solid form and obtain trimeric cyanamide starch-resin.Gained resin is pulverized 1000 orders for subsequent use.
Embodiment 2
By resin 100g processed for embodiment 1, solidifying agent oxalic acid 9 grams, defoamer silicone emulsion 0.3 gram, flexibilizing agent polyoxyethylene glycol 1 gram, coupling agent HK-560 (lower same) 0.01 gram, toughener white carbon black 8 grams, 20 grams, weighting agent rutile titanium white powder, after mixing, high-speed stirring is even.
To be put in mould under moulding press 50KG pressure 120 DEG C 10 minutes, 140 DEG C 20 minutes, compression molding.
Product colour is oyster white, and physical strength is in table 2.
Embodiment 3
By resin 100g processed for embodiment 1, solidifying agent oxalic acid 10 grams, defoamer silicone emulsion 0.4 gram, flexibilizing agent polyvinyl butyral acetal 1 gram, coupling agent 0.013 gram, toughener alumina whisker 8 grams, 22 grams, weighting agent rutile titanium white powder, grey look female 2g, high-speed stirring is even.
To be put in mould under moulding press 50KG pressure 120 DEG C 10 minutes, 140 DEG C 20 minutes, compression molding.Product colour is canescence, and physical strength is in table 2.
Embodiment 4
By resin 100g processed for embodiment 1, solidifying agent ammonium chloride 9 grams, defoamer polypropylene glycerol aether 0.3 gram, flexibilizing agent polyvinyl butyral acetal 1 gram, coupling agent 0.02 gram, toughener active micro silicon powder 7 grams, weighting agent wood powder 25 grams, high-speed stirring is even.To be put in mould under moulding press 50KG pressure 120 DEG C 10 minutes, 140 DEG C 20 minutes, compression molding.
Embodiment 5 combustionproperty detects
To the detection of the section bar that embodiment 2-4 obtains, detect according to being: People's Republic of China (PRC) GB8624-2006 " material of construction and product burns grading performance ", People's Republic of China (PRC) GB5022--1995 " code for fire prevention design of interior decoration of buildings ", People's Republic of China (PRC) GB/T8813-2008 " rigid foam compression performance mensuration ", People's Republic of China (PRC) GB/T10295-2008 " Technology of Steady State Thermal Resistance of Thermal Insulating Material and related characteristics measure heat flowmeter method ".
Part detecting instrument: JCB-2 building materials non-combustibility test stove, building material made monomer combustion testing apparatus, English Bel (Tianjin) detecting instrument company limited; Oxygen index tester, Chengde Jinjian Testing Instrument Co., Ltd.; Cigarette poison proofing unit, universal testing machine (GT-TS-200-M type), heat conduction coefficient tester, Taiwan High Speed Rail Testing Instruments company limited.
Table 1 combustionproperty detects
Embodiment 6 mechanical property detects
The electrical enclosure material that embodiment 2 ~ 4 is made is carried out to the detection of mechanical property, the standard of foundation is: the mensuration of GB/T1040.1-2006 plastic tensile performance, the mensuration of GB/T9341-2008 plastics bending property, the mensuration of GB1843-2008 plastics cantilever beam impact strength.
The each embodiment physicals of table 2
Although above the present invention has done detailed description, and on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (9)
1. one kind does not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, it is be pressed into by following composition hybrid guided mode: trimeric cyanamide starch conversion resin 100 parts, 9 ~ 14 parts, solidifying agent, defoamer 0.3 ~ 0.5 part, flexibilizing agent 0.5-1 part, coupling agent 0.01-0.03 part, toughener 5-8 part, weighting agent 18-25 part, look mother 0 ~ 10 part.
2. according to claim 1ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, described solidifying agent is one or more in oxalic acid, formic acid, phosphoric acid, tosic acid, ammonium chloride, magnesium sulfate; Described defoamer is: one or more in silicone emulsion, polypropylene glycerol aether, polyoxyethylene glycerol ether, polydimethylsiloxane; Described flexibilizing agent is: polyoxyethylene glycol, self-crosslinking styrene acrylate resins, polyvinyl butyral acetal, phthalate, benzoic anhydride polyester polyol, one or more in isocyanic ester; Described coupling agent is HK-560 or HK-550.
3. according to claim 3ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, described flexibilizing agent be benzoic anhydride polyester polyol with isocyanate than 1:0.3 mixture.
4. according to claim 1ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, described toughener is: one or more in pure aluminium silicate whisker, active micro silicon powder, carboxymethyl cellulose, white carbon black; Described weighting agent is: one or more in 100-150 object rutile titanium white powder, silicon-dioxide, wood powder, active micro silicon powder, calcium oxide, magnesium oxide, aluminium hydroxide, magnesium hydroxide.
5. described do not fire a grade trimeric cyanamide electrical enclosure material according to Claims 1 to 4 is arbitrary, it is characterized in that, the preparation method of described trimeric cyanamide starch conversion resin comprises step:
1) add 100 parts of water after adding maize amylose 13-25 mass parts in a kettle., stir and heat to 60 ~ 90 DEG C, make starch pasting;
2) catalyzer 3-5 gram is added, be warming up to 95 DEG C of reaction 90min, stop dripping when dropping pH value regulator to pH value is 10, Temperature fall to 72 ~ 76 DEG C add paraformaldehyde 5 ~ 12 mass parts, polyvinyl alcohol 5 mass parts, keep 30min after whole dissolving, now liquid is clear state;
3) add trimeric cyanamide 13 ~ 25 mass parts, adjust ph is 10, and every 30min pH value regulator control pH value remains between 9 ~ 10, and after reaction continues 2.5 ~ 3h, liquid becomes clarification again, stops adding conditioning agent and continues to react;
4) stir rapidly to adding sodium carbonate 3 mass parts during 170mpa/s in detection viscosity, viscosity increases sharply, stopped reaction when viscosity is 1000mpa/s.
6. according to claim 5ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, described step 2) in catalyzer be: one or more in Mono Chloro Acetic Acid, 70% dilute sulphuric acid, 20% dilute hydrochloric acid; Described pH value regulator is: the saturated aqueous solution of one or more in sodium hydroxide, sodium carbonate, calcium hydroxide, calcium oxide.
7. according to claim 5ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, step 4) reaction after take out material, drying or vacuum hydro-extraction are to solid form, obtain trimeric cyanamide starch conversion resin, be crushed to 800 ~ 1200 orders and prepare for section bar.
8. according to claim 1ly do not fire a grade trimeric cyanamide electrical enclosure material, it is characterized in that, the condition of molding of described section bar is: after the mixing of each composition, high speed dispersion evenly, to be put in mould under moulding press 30 ~ 60KG pressure 120 DEG C of compactings 10 minutes, to suppress 20 minutes at 140 DEG C.
9. the arbitrary described grade trimeric cyanamide electrical enclosure material of not firing of claim 1 ~ 8 is preparing the application in electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510960338.6A CN105504673A (en) | 2015-12-18 | 2015-12-18 | Nnon-inflammable melamine electric appliance shell material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510960338.6A CN105504673A (en) | 2015-12-18 | 2015-12-18 | Nnon-inflammable melamine electric appliance shell material |
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| CN105504673A true CN105504673A (en) | 2016-04-20 |
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| CN201510960338.6A Pending CN105504673A (en) | 2015-12-18 | 2015-12-18 | Nnon-inflammable melamine electric appliance shell material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106928652A (en) * | 2017-03-22 | 2017-07-07 | 合肥仁德电子科技有限公司 | A kind of electronic product casing |
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| CN102061059A (en) * | 2010-12-22 | 2011-05-18 | 中国林业科学研究院林产化学工业研究所 | Wood fiber reinforced inflaming retarding foam material and machining method thereof |
| CN102329472A (en) * | 2011-05-31 | 2012-01-25 | 厦门建霖工业有限公司 | Preparation method of tank body of closestool water tank molded by adopting composite material |
| CN104448698A (en) * | 2014-12-22 | 2015-03-25 | 沙县宏盛塑料有限公司 | Melamine formaldehyde mould plastic and preparation method thereof |
| CN105038120A (en) * | 2015-07-30 | 2015-11-11 | 德清县联诚氨基塑料制品有限公司 | Melamine resin |
-
2015
- 2015-12-18 CN CN201510960338.6A patent/CN105504673A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020827A (en) * | 2010-10-14 | 2011-04-20 | 常熟东南塑料有限公司 | Phenolic moulding plastic for low-voltage apparatus |
| CN102061059A (en) * | 2010-12-22 | 2011-05-18 | 中国林业科学研究院林产化学工业研究所 | Wood fiber reinforced inflaming retarding foam material and machining method thereof |
| CN102329472A (en) * | 2011-05-31 | 2012-01-25 | 厦门建霖工业有限公司 | Preparation method of tank body of closestool water tank molded by adopting composite material |
| CN104448698A (en) * | 2014-12-22 | 2015-03-25 | 沙县宏盛塑料有限公司 | Melamine formaldehyde mould plastic and preparation method thereof |
| CN105038120A (en) * | 2015-07-30 | 2015-11-11 | 德清县联诚氨基塑料制品有限公司 | Melamine resin |
Non-Patent Citations (1)
| Title |
|---|
| 马庆: ""三聚氰胺-蔗糖-甲醛共缩聚树脂（MSF）合成与结构表征的研究"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106928652A (en) * | 2017-03-22 | 2017-07-07 | 合肥仁德电子科技有限公司 | A kind of electronic product casing |
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