CN104650762B - Waxy corn starch additive composition, and glue and application thereof - Google Patents
Waxy corn starch additive composition, and glue and application thereof Download PDFInfo
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- CN104650762B CN104650762B CN201510045215.XA CN201510045215A CN104650762B CN 104650762 B CN104650762 B CN 104650762B CN 201510045215 A CN201510045215 A CN 201510045215A CN 104650762 B CN104650762 B CN 104650762B
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Abstract
The invention provides a waxy corn starch additive composition, and a glue and application thereof. The composition comprises hydroxymethyl acrylamide, waxy corn starch and sodium hypochlorite. The invention also provides application of the waxy corn starch additive composition in preparing the glue. The waxy corn starch additive composition can obviously enhance the comprehensive properties of the glue, so that the glue has excellent heat stability, excellent primary drying time, excellent water resistance, excellent binding strength, excellent curing time, excellent comprehensive properties and the like.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of waxy corn starch compositions of additives and glue
Water, purposes.
Background technology
At present, than relatively low, industry competition is more chaotic for the threshold industry of door and window, is quality and the market competition for improving product
Power, needs are constantly improved.The high-grade energy-conservation wooden doors and windows being widely used in external window of building engineering include：Pure timber
Window, aluminum clad wood doors and windows, wooden three big kind of aluminum composite door and window.It is and wooden aluminum composite door and window is because being heat insulated shape bar of aluminum alloy on the outside of which, interior
Side is wooden decoration bar section, therefore is suitable for southern rainy, high temperature, moist weather conditions.Present domestic market processing and fabricating
The unreasonable structure of wooden aluminum composite door and window, aluminium layering assembling want secondary operations, and in Wind-Pressure Resistance, air-tightness and sound insulation, heat-insulated etc.
Aspect of performance still there are substantial portion of energy loss nor highly desirable.
In common high-grade timber window, the mode of ligneous piece's connection therein is as follows：In adjacent Liang Ge ligneous pieces, wherein one
Individual ligneous piece is provided with fluting, and another ligneous piece is provided with the buckle with slotted engagement, by fluting and the cooperation of buckle by wood
Product is attached fixation；Strengthen fixed firmness, the glue coating generally also between adjacent ligneous piece for a step；Timber window
The environmental attack for going from bad to worse at present will be born in use, extends normal use time as far as possible, while will also take into account
The feature of environmental protection, it is ensured that envoy person's is healthy, therefore the glue to being coated between ligneous piece puts forward higher requirement.Existing skill
In art, the combination property such as usual glue environmental protection degree, hardening time, adhesion strength is also difficult to meet the demand of production practices.
Retrieval discoveries of the Jing to prior art, 02109653.8 (publication date November 19 in 2003 of Chinese invention patent application
Day) a kind of powerful white latex is disclosed, specifically by polyvinyl alcohol, sodium hydroxide, starch, hydrochloric acid, formaldehyde, carbamide, water composition, this
Plant white glue with vinyl frost resistance good, be difficult precipitation, not stratified, process is simple.But this glue contains formaldehyde and carbamide, environmental-protecting performance
Difference.
Chinese invention patent application 201310012677.2 (publication date on January 14th, 2013) discloses a kind of modified polyvinyl acetate emulsion
Glue, the modified latex include vinylacetate, acrylic acid, butyl acrylate, initiator and emulsifying agent, obtained modified polyvinyl acetate emulsion
Adhesiveness is big, can film forming at room temperature, adhesion strength is big, water-tolerant.The vinylacetate toxicity that this glue is adopted is big, no
Enough environmental protection.
201410004735.1 (publication date of Chinese invention patent application：On April 16th, 2014) disclose a kind of environment-friendly type
White glue with vinyl, described glue include：PVAC polyvinylalcohol, vinylacetate VAC, acrylic acid AA, acrylamide AM, Ammonium persulfate.,
Anion emulsifier A-102, alkyl polyoxyethylene ether LCN-287 nonionic emulsifiers；Corn starch, transparent powder, plasticizer, two
Glycol dibenzoate DEDB, preservative KSG-201, sodium hydroxide and methanol；But this glue has still been used has toxicity
Vinylacetate, environmental-protecting performance is poor.
Meanwhile, the related glue disclosed in prior art combination property in using effect is also poor, there is no method to meet high
The related request of shelves energy-conservation wooden doors and windows quality.
The content of the invention
The brief overview with regard to the present invention is given below, to provide the basic reason with regard to certain aspects of the invention
Solution.It should be appreciated that this general introduction is not the exhaustive general introduction with regard to the present invention.It is not intended to the key for determining the present invention
Or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form, with
This is used as the preamble in greater detail discussed after a while.
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of waxy corn starch compositions of additives and
Glue, purposes；The glue environmental-protecting performance of the present invention is high, and excellent combination property disclosure satisfy that high-grade energy-conservation wooden doors and windows quality
Related request.
In a first aspect, the present invention relates to a kind of waxy corn starch compositions of additives, the compositionss are by following weight
The each group of number is grouped into：
N-methylolacrylamide 20-32,
Waxy corn starch 10-15,
Sodium hypochlorite 2-7.
Second aspect, the present invention provide a kind of glue, and the glue is grouped into by each group of following parts by weight：
Polyvinyl acetate 700-1050,
Vinylacetate 300-350,
Polyvinyl alcohol 120-145,
Dibutyl phthalate 60-100,
Diethylene glycol dibenzoate 20-40,
Capryl alcohol 10-15,
Isopropanol 30-45,
Allyl methacrylate 10-25,
Ethyleneglycol dimethyacrylate 5-10,
Toluene di-isocyanate(TDI) 3-7,
Sodium bicarbonate 35-50,
Water 1400-1500,
Emulsifying agent 40-50,
Initiator 5-10,
N-methylolacrylamide 20-32,
Waxy corn starch 10-15,
Sodium hypochlorite 2-7.
The third aspect, the present invention relates to a kind of use of aforementioned waxy corn starch compositions of additives in glue is prepared
On the way.
Compared with existing, the present invention has following beneficial effect：The waxy corn starch compositions of additives of the present invention
The performance of glue can be obviously improved.So that glue is just done the time, water resistance in thermal stability, when adhesion strength and solidification
Between etc. there is in index outstanding representation, combination property is superior, disclosure satisfy that the strict demand of high-grade energy-conservation wooden doors and windows quality.
Specific embodiment
Embodiments of the invention addressed below.The element for describing in one embodiment of the invention and feature can be with
Combine with the element and feature that illustrate in one or more other embodiments.It should be noted that for purposes of clarity, say
The expression and description of unrelated to the invention, part known to persons of ordinary skill in the art and process are eliminated in bright.
Embodiment 1
The present embodiment is related to a kind of waxy corn starch compositions of additives, and the compositionss are made an addition in glue, finally
The glue is grouped into by each group of following parts by weight：
Polyvinyl acetate 700,
Vinylacetate 300,
Polyvinyl alcohol 120,
Dibutyl phthalate 60,
Diethylene glycol dibenzoate 20,
Capryl alcohol 10,
Isopropanol 30,
Allyl methacrylate 10,
Ethyleneglycol dimethyacrylate 5,
Toluene di-isocyanate(TDI) 3,
Sodium bicarbonate 35,
Water 1400,
Emulsifying agent 40, emulsifying agent are enuatrol (i.e. sodium oleate)；
Initiator 5, initiator are Ammonium persulfate.；
N-methylolacrylamide 20,
Waxy corn starch 10,
Sodium hypochlorite 2.
The each component being related in the present embodiment can be obtained by disclosed commercially available channel.The preparation of glue in the present embodiment
Method and step is as follows：
Step one, under stirring condition, (weight of the water taken accounts for aforementioned glue to take the water of 50-73% percentage by weights
In compositionss, the ratio of the gross weight of component water is 50-73%), and polyvinyl alcohol, mixing, it is warmed up to 88-95 degree so that poly- second
Enol is completely dissolved, and is incubated 1 hour under 70-80 degree, and regulation pH is 8-9, obtains solution A；
Step 2, (weight of the emulsifying agent taken accounts for the combination of aforementioned glue to take the emulsifying agent of 30-40% percentage by weights
In thing, the ratio of the gross weight of component emulsifying agent is 30-40%), under stirring condition, the emulsifying agent and remaining water are added to
In solution A, then it is slowly added into the vinylacetate of 40-50% percentage by weights (before the weight of the vinylacetate taken is accounted for
State component vinylacetate in glue composition gross weight ratio be 40-50%) and 40-50% percentage by weights initiator
(it is 40-50% that the weight of the initiator taken accounts for the ratio of component initiator in aforementioned glue composition), is warming up to 88-95
Degree, is incubated 0.3-0.5 hours；It is cooled to 60-70 degree；It is slowly added into remaining vinylacetate and remaining initiation afterwards again
Agent；88-95 degree (DEG C) is warming up to, 0.2-0.4 hours are incubated；
Step 3, (weight of the emulsifying agent taken accounts for aforementioned glue group to the emulsifying agent of addition 30-40% percentage by weights
In compound, the ratio of the gross weight of component emulsifying agent is 30-40%), and polyvinyl acetate, 0.2-0.4 is incubated under 88-95 degree
Hour, it is subsequently cooled to 40-50 degree (DEG C)；
Step 4, under stirring condition, adds sodium bicarbonate, and dibutyl phthalate, diethylene glycol dibenzoate are pungent
Alcohol, isopropanol, mix homogeneously obtain solution B；
Step 5, adds remaining emulsifying agent, allyl methacrylate, methacrylate ethylene glycol in solution B
Ester, toluene di-isocyanate(TDI), n-methylolacrylamide, waxy corn starch, sodium hypochlorite, mix homogeneously, 40-50 degree (DEG C) are protected
Warm 0.1-0.3 hours, are cooled to room temperature, obtain final product the timber window part connection glue.
Embodiment 2
The present embodiment is related to a kind of waxy corn starch compositions of additives, and the compositionss are made an addition in glue, finally
The glue (preparation method is with reference to embodiment 1) is grouped into by each group of following parts by weight：
Polyvinyl acetate 1050,
Vinylacetate 350,
Polyvinyl alcohol 145,
Dibutyl phthalate 100,
Diethylene glycol dibenzoate 40,
Capryl alcohol 15,
Isopropanol 45,
Allyl methacrylate 25,
Ethyleneglycol dimethyacrylate 10,
Toluene di-isocyanate(TDI) 7,
Sodium bicarbonate 50,
Water 1500,
Emulsifying agent 50, emulsifying agent are dodecylbenzene sodium sulfonate；
Initiator 10, initiator are Ammonium persulfate.；
N-methylolacrylamide 32,
Waxy corn starch 15,
Sodium hypochlorite 7.
Embodiment 3
The present embodiment is related to a kind of waxy corn starch compositions of additives, and the compositionss are made an addition in glue, finally
The glue (preparation method is with reference to embodiment 1) is grouped into by each group of following parts by weight：
Polyvinyl acetate 800,
Vinylacetate 315,
Polyvinyl alcohol 125,
Dibutyl phthalate 80,
Diethylene glycol dibenzoate 25,
Capryl alcohol 12,
Isopropanol 35,
Allyl methacrylate 15,
Ethyleneglycol dimethyacrylate 7,
Toluene di-isocyanate(TDI) 4,
Sodium bicarbonate 39,
Water 1450,
Emulsifying agent 45, emulsifying agent are dodecylbenzene sodium sulfonate；
Initiator 6, initiator are potassium peroxydisulfate；
N-methylolacrylamide 25,
Waxy corn starch 12,
Sodium hypochlorite 4.
Embodiment 4
The present embodiment is related to a kind of waxy corn starch compositions of additives, and the compositionss are made an addition in glue, finally
The glue (preparation method is with reference to embodiment 1) is grouped into by each group of following parts by weight：
Polyvinyl acetate 950,
Vinylacetate 335,
Polyvinyl alcohol 135,
Dibutyl phthalate 90,
Diethylene glycol dibenzoate 35,
Capryl alcohol 14,
Isopropanol 40,
Allyl methacrylate 22,
Ethyleneglycol dimethyacrylate 9,
Toluene di-isocyanate(TDI) 6,
Sodium bicarbonate 45,
Water 1480,
Emulsifying agent 48, emulsifying agent are dodecylbenzene sodium sulfonate；
Initiator 9, initiator are potassium peroxydisulfate；
N-methylolacrylamide 29,
Waxy corn starch 14,
Sodium hypochlorite 6.
Embodiment 5
The present embodiment is related to a kind of waxy corn starch compositions of additives, and the compositionss are made an addition in glue, finally
The glue (preparation method is with reference to embodiment 1) is grouped into by each group of following parts by weight：
Polyvinyl acetate 900,
Vinylacetate 330,
Polyvinyl alcohol 130,
Dibutyl phthalate 85,
Diethylene glycol dibenzoate 30,
Capryl alcohol 13,
Isopropanol 37,
Allyl methacrylate 19,
Ethyleneglycol dimethyacrylate 8,
Toluene di-isocyanate(TDI) 5,
Sodium bicarbonate 41,
Water 1460,
Emulsifying agent 46, emulsifying agent are dodecylbenzene sodium sulfonate；
Initiator 8, initiator are potassium peroxydisulfate；
N-methylolacrylamide 27,
Waxy corn starch 13,
Sodium hypochlorite 5.
Comparative example 1
In prior art, the customary preparation methods of glue comprise the steps：300 parts of polyvinyl alcohol is taken, under stirring condition,
40 parts of dodecylbenzene sodium sulfonate, 800 parts of water is added to stir 10-15 minutes；Add 450 parts of vinylacetate, 10 parts of persulfuric acid
Potassium, is incubated under 65-70 degree and waits the basic disappearance that flows back, be warmed up to 80-85 degree, add 800 parts of vinylacetate, 10 parts of persulfuric acid
Potassium, is warmed up to 90-95 degree insulation 05-0.6 hours, is cooled to 50 degree, adds 50 parts of dibutyl phthalate, sodium bicarbonate 10
Part, stir, cool down, obtain glue.
Implementation result
To verify the implementation result of the present invention, the test of following index is carried out：
The subjective feeling of the 1st, environmental-protecting performance, production and user；
2nd, thermal stability determination：Kept for 6 days under 50-60 degree, see whether to change, if appearance precipitation or gel are existing
As more, then heat stability is poorer；
3rd, just do timing：Ligneous piece is taken, 6g glue is taken and is evenly coated in ligneous piece surface, observe its drying time；5 times
Repeat, average；
4th, resistance to water is determined：The ligneous piece of one group (2) same specification is taken, corresponding contact surface is pressed in each ligneous piece
Every square metre of glue coating of 150g, the specification of each contact surface is 100mm*30mm, afterwards by the contact surface pair of Liang Ge ligneous pieces
Compression should be overlapped, is spontaneously dried 12 hours, be soaked in 30-35 degree water, measure is come unglued the time；5 repetitions, average；
5th, adhesion strength is determined：The ligneous piece of one group (2) same specification is taken, corresponding contact surface is pressed in each ligneous piece
Every square metre of glue coating of 150g, the specification of each contact surface is 100mm*30mm, afterwards by the contact surface pair of Liang Ge ligneous pieces
Compression should be overlapped, closed assembly time is less than 10 minutes, and contact surface applies 1Mpa pressure, under room temperature, installation time 12 hours is released
Placed after pressure again 12 hours, made a strength test；5 repetitions, average；
6th, determine hardening time, take glue 10g, be positioned in beaker, heating in water bath under 50-55 degree, stirring determine which solid
The change time；5 repetitions, average.
Table 1
Table 1 is the experiment effect of each embodiment and comparative example, as shown in Table 1, the glue feature of environmental protection of embodiment of the present invention 1-5
The subjective sensation of comparative example 1, the equal tasteless of glue prepared by each embodiment, production and user can be superior to preferably, analysis is former
Cause, the consumptions of glue a large amount of reduction vinylacetates in component of the present invention, replaces vinegar with nontoxic polyvinyl acetate
Vinyl acetate, has been obviously improved the environmental-protecting performance of glue；Due to polyvinyl acetate and vinylacetate property and differ,
The technology stability in the performance and preparation process of glue is prepared for satisfaction, needs polyvinyl acetate and vinylacetate
Ratio in an OK range, while needing to emulsifying agent, the consumption of initiator also has specific requirement；The glue of the present invention
By overall adjustment of formula, cooperateed between each component, realize adopt simultaneously polyvinyl acetate come and vinyl acetate
While ester lifts environmental-protecting performance, moreover it is possible to realize the unexpected technique effect being obviously improved of glue combination property, with significant
Novelty.
Heat stability index, the thermal stability of embodiment of the present invention 1-5 are also superior to comparative example 1, and experimental observation is implemented
There is not obvious sediment or gelatin phenomenon in glue prepared by example 1-5, and glue prepared by embodiment 1-5 has upper and lower two-layer emulsion existing
As upper strata emulsion is more liquid, and lower floor's emulsion glue is sticky, and mobility is slightly weak, and thermal stability is excellent；Comparative example 1 is reviewed,
After being kept for 25 days, there is more obvious gelatin phenomenon in glue, and thermal stability is poor.
First dry time index, as shown in Table 1, the first dry time of embodiment of the present invention 1-5 is shorter than comparative example 1, when just doing
Between it is shorter, illustrate that the performance of glue is more excellent；First dry for up to 50 minutes, the dry time at the beginning of the embodiment of the present invention of comparative example 1
It is up to 32 minutes, most short up to 21 minutes, it is much better than comparative example 1.
Resistance to water index, as shown in Table 1, embodiment of the present invention 1-5 prepares the resistance to water of glue and is better than comparative example 1, resistance to
Aqueouss can at least improve more than 2 times, with significant technique effect.
Adhesion strength index, as shown in Table 1, it is 5.34Mp that comparative example 1 prepares the adhesion strength index of glue, and of the invention
The adhesion strength index of glue is prepared in more than 9.11Mp, 70.6% is at least improved, the wherein best embodiment 5 of performance is made
Standby glue bonding intensity index has reached 9.90Mp, and performance boost is up to 85.4%, with the technique effect that purpose is not desired to.
Hardening time index, as shown in Table 1, comparative example 1 prepare glue hardening time be 450 seconds, embodiment 1-5 prepare
The hardening time of glue, the most short glue prepared for embodiment 5 foreshortened to 300 seconds hardening time, only within 415 seconds
The 66.7% or so of the glue curing time are prepared for comparative example 1, the hardening time of glue is significantly shorten, with significant technology
It is progressive.
In summary it can be seen, not only environmental-protecting performance is obviously improved glue performance prepared by embodiment of the present invention 1-5, Er Qietong
When realize being obviously improved for glue combination property, with unexpected technique effect.Indices to embodying in table 1 enter
Row global alignment, it is found by the applicant that the glue of 5 index of embodiment has most excellent performance on indices, undoubtedly embodiment
5 is highly preferred embodiment of the present invention.
With reference to the excellent effect of the present invention, applicant is illustrated to the component and technique of the present invention：The glue of the present invention
To lift environmental-protecting performance, the consumption for rationally reducing vinylacetate is employed, replaces acetic acid with nontoxic polyvinyl acetate
The technical thought of vinyl acetate, due to polyvinyl acetate and vinylacetate property and differ, be that satisfaction prepares glue
Technology stability in performance and preparation process, needs the ratio of polyvinyl acetate and vinylacetate, while necessary
The selection of remaining component in concern system.Why applicant has to the polyvinyl acetate used in same system and acetic acid
Vinyl acetate, rather than vinylacetate is abandoned completely, generally given birth to as raw material using vinylacetate in being because prior art
Glue is produced, and the present invention retains the technology for the present invention being enabled to using vinylacetate in system and has very strong promotion price
Value, enables to existing glue production manufacturer and is easy to receive this improved production technology, rather than brand-new production technology so that
The technology of the present invention has good market using value；On the other hand take into account the consideration of production cost.
Applicant has been surprisingly found that through many experiments polyvinyl acetate is (700- with the weight ratio of vinylacetate
1050):(300-350) goal of the invention of the present invention is just realized, it is if the consumption of vinylacetate exceeds the ratio, final to prepare
Glue environmental-protecting performance cannot just be obviously improved, with the common glue environmental-protecting performance difference of prior art less, if poly-vinegar acid second
The too high levels of alkene ester, then can cause preparation technology reaction stability to be deteriorated, and wayward, glue combination property is deteriorated, and causes
The combination property of final glue cannot be obviously improved.
Dibutyl phthalate and diethylene glycol dibenzoate are plasticizer, and the present invention is anti-to adapt to compound material
System is answered, is employed while adding the way of dibutyl phthalate and diethylene glycol dibenzoate；Capryl alcohol and isopropanol, no
Can be only used for dissolving dibutyl phthalate and diethylene glycol dibenzoate, be conducive to improving the degree of adhesion of glue；Can also
The effect of a part of defoamer is played, it is steady when being conducive to glue of the present invention to prepare；Applicants contemplate that, phthalic acid two
Butyl ester, diethylene glycol dibenzoate and capryl alcohol, four kinds of components of isopropanol constitute synergistic small system together, can
It is specific to meet the particular/special requirement that polyvinyl acetate and vinylacetate are combined polyvinyl alcohol reaction as compound material, it is not only real
Reaction system is showed steady, has not used the remarkable efficacy of defoamer, moreover it is possible to effectively lifted the bond propertiess of glue, for lifting most
The index such as the adhesion strength of whole glue and hardening time has direct action effect.
Allyl methacrylate, ethyleneglycol dimethyacrylate and toluene di-isocyanate(TDI) have the work of binding agent
With applicant dexterously selects this 3 kinds of materials, with reference to specific ratio, constitutes synergism system, adds in the suitable time
The combination property of final glue in preparation technology system, is extremely considerably enhanced, and the stability of glue is not produced not
Good impact, due to the time for being added to reaction system be it is last, therefore also do not cause glue preparation technology become increasingly complex,
With significant technological progress.Meanwhile, common sense in the field, under normal circumstances in rational scope, the concentration of glue gets over Gao Ze
Using effect is better, is reduces cost, and glue concentration prepared by many manufacturers is only 40% or so, and should be normally
50-60% or so；After glue dilution, its moisture is improved, and when in use, the moisture that glue contains can penetrate into ligneous piece, make
Wood expansion is obtained, is caused to combine between ligneous piece, is caused serious product quality problem to occur.Therefore, for raising city
The purpose of field competitiveness, can also keep its using effect to maintain an equal level with like product while finished product glue concentration is rationally reduced,
Undoubtedly there is huge market value., when the degree of market like product is diluted to, related is viscous for glue prepared by the present invention
Knotting strength, hardening time, resistance to water etc. know to be significantly better than like product, and this greatly improves the market competition of product of the present invention
Power, with huge market value, applicant analysis, this and used in the system of the present invention " dibutyl phthalate,
Diethylene glycol dibenzoate and capryl alcohol, isopropanol " and " allyl methacrylate, ethyleneglycol dimethyacrylate and toluene
Diisocyanate " this 2 special synergistic combination have vital contact, and this 2 collaboration systems are not only able to be lifted
The adhesive property of glue, is combined together, additionally it is possible to further delicate synergism occurs, the bonding of glue is further improved
Performance, significantly increases the market competitiveness that the present invention prepares glue.
With reference to the experiment effect of table 1, although the indices of embodiment 1-5 better than comparative example 1, embodiment 1-5 it
Between also difference, analysis gets off, implement 5 for the present invention most preferred embodiments, it is seen then that the content selection of component is for index glue
The final performance of water also has vital impact, so the content that the novelty of the present invention is also embodied in each component simultaneously is selected
Aspect.
Certainly, because the requirement of the mentality of designing and goal of the invention of glue of the present invention, remaining compositional selecting of the invention and contain
Amount selects obviously also non-obvious, and those skilled in the art can be readily occurred in reference to prior art absolutely not.This is at this
There is further embodiment in terms of the preparation technology of invention glue, can see with reference to embodiments of the invention, the preparation of the present invention
Method adds raw material in batches by several times, and the percentage ratio for adding has special scope using five step designs, rather than using existing
The conventional disposable addition of technology, this technique are adapted with the special proportioning of glue component of the present invention, only with adopting this
Technique is planted, just can guarantee that the smooth sequential of reaction system is carried out, it is ensured that finally prepare the superior quality of glue.
The paste viscosity of waxy corn starch itself is higher, and mobility is poor, and usability is poor；The present invention is simultaneously in compositionss
In add waxy corn starch and sodium hypochlorite in proper proportions, using hypochlorite oxidation waxy corn starch, form oxygen
Change starch, paste viscosity is reduced, and mobility improves；The present invention with the addition of N hydroxymethyl acrylamide simultaneously；It has been found that while
Addition waxy corn starch, after sodium hypochlorite and N hydroxymethyl acrylamide, can further be obviously improved the comprehensive of glue
Can, the adhesion strength and index hardening time of glue are significantly improved, and combination property is further improved；It is applicant's understanding that N- hydroxyls
Methacrylamide is rich in the methylol of reactivity, can effectively lift the degree of adhesion of system；What waxy corn starch was changed into
Oxytarch has good mobility and stronger anti-shear stability, can further promote N hydroxymethyl acrylamide at this
Fusion in invention system, and then the lifting of promotion system degree of adhesion；Meanwhile, Oxytarch itself also has preferably paste viscosity,
The effect of adhesive can be also played, the adhesive power of system is lifted；Oxytarch is transported in system with N hydroxymethyl acrylamide
In dynamic process, also can mutually bond, further lift the adhesive power of system；It can be seen that, the present invention is ingenious to make use of waxiness beautiful
Rice starch is changed into the characteristic that Oxytarch has, and not only realizes the effect of enhancing system bonding force, moreover it is possible to effectively lift N-
Effect of n-methylolacrylamide, also can occur to interact and bond with N hydroxymethyl acrylamide, and collaboration improves system
Integrated bond ability, realize unexpected technique effect.Due to waxy corn starch itself it is relatively stable, it is therefore of the invention
Using waxy corn starch as raw material, it is easy to store and transports.
In sum, waxy corn starch compositions of additives of the invention can be obviously improved the performance of glue.So that glue
Water is just done the time, water resistance in thermal stability, has outstanding representation in the index such as adhesion strength and hardening time, comprehensive
Superior performance, disclosure satisfy that the strict demand of high-grade energy-conservation wooden doors and windows quality.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
With reference to the foregoing embodiments the present invention has been described in detail, it will be understood by those within the art that：Which still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution for essence disengaging various embodiments of the present invention technical scheme spirit
And scope.
Claims (3)
1. a kind of glue, it is characterised in that the glue is grouped into by each group of following parts by weight：
Polyvinyl acetate 700-1050,
Vinylacetate 300-350,
Polyvinyl alcohol 120-145,
Dibutyl phthalate 60-100,
Diethylene glycol dibenzoate 20-40,
Capryl alcohol 10-15,
Isopropanol 30-45,
Allyl methacrylate 10-25,
Ethyleneglycol dimethyacrylate 5-10,
Toluene di-isocyanate(TDI) 3-7,
Sodium bicarbonate 35-50,
Water 1400-1500,
Emulsifying agent 40-50, the emulsifying agent are dodecylbenzene sodium sulfonate or enuatrol,
Initiator 5-10,
N-methylolacrylamide 20-32,
Waxy corn starch 10-15,
Sodium hypochlorite 2-7.
2. glue according to claim 1, it is characterised in that the glue is grouped into by each group of following parts by weight：
Polyvinyl acetate 800-950,
Vinylacetate 310-335,
Polyvinyl alcohol 125-135,
Dibutyl phthalate 80-90,
Diethylene glycol dibenzoate 25-35,
Capryl alcohol 12-14,
Isopropanol 35-40,
Allyl methacrylate 15-22,
Ethyleneglycol dimethyacrylate 7-9,
Toluene di-isocyanate(TDI) 4-6,
Sodium bicarbonate 39-45,
Water 1450-1480,
Emulsifying agent 45-48,
Initiator 6-9,
N-methylolacrylamide 20-32,
Waxy corn starch 10-15,
Sodium hypochlorite 2-7.
3. glue according to claim 1, it is characterised in that the initiator is potassium peroxydisulfate or Ammonium persulfate..
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| CN201510045215.XA CN104650762B (en) | 2015-01-28 | 2015-01-28 | Waxy corn starch additive composition, and glue and application thereof |
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| CN201510045215.XA CN104650762B (en) | 2015-01-28 | 2015-01-28 | Waxy corn starch additive composition, and glue and application thereof |
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| CN104650762B true CN104650762B (en) | 2017-04-26 |
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| CN105860877A (en) * | 2016-05-11 | 2016-08-17 | 广西银洲科技有限公司 | Addition agent for starch adhesive and preparation method and application method of addition agent for starch adhesive |
| CN110527488A (en) * | 2019-09-16 | 2019-12-03 | 江门市环瀛实业有限公司 | A kind of glutinous rubber powder of wall paper and its preparation method and application |
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| CN1291997A (en) * | 1998-02-27 | 2001-04-18 | 钟渊化学工业株式会社 | Polymer and curable composition |
| CN101265398A (en) * | 2008-04-28 | 2008-09-17 | 赵学开 | Environment-friendly type white emulsion glue |
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