CN101423743B - Sealant compositions and method of preparing the same - Google Patents
Sealant compositions and method of preparing the same Download PDFInfo
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- CN101423743B CN101423743B CN2007101654686A CN200710165468A CN101423743B CN 101423743 B CN101423743 B CN 101423743B CN 2007101654686 A CN2007101654686 A CN 2007101654686A CN 200710165468 A CN200710165468 A CN 200710165468A CN 101423743 B CN101423743 B CN 101423743B
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Abstract
The invention discloses a sealant composition, which contains a polyvinyl chloride resin, a plasticizer, a filler, an adhesion accelerator and a thixotropic agent, wherein the thixotropic agent comprises a thixotropic agent A and a thixotropic agent B, and the average primary particle size of the thixotropic agent A is different from that of the thixotropic agent B. The invention also provides a method for preparing the composition. The sealant composition uses the two thixotropic agents with different average primary particle sizes, can adjust the viscosity of a sealant, and can simultaneously avoid sagging and trailing phenomena.
Description
Technical field
The invention relates to a kind of composition and method of making the same, more specifically is about a kind of sealant composition and preparation method thereof.
Background technology
Automotive industry is used sizing agent (sealer) and is originated in the forties in last century; Its main purpose is in order to seal with antirust; Begin from the sixties; Behind the needs, the particularly appearance of pasta sizing agent of process modification of producing along with automotive industry and comfortableization of car, luxuriousization, automotive industry begins to use in a large number sizing agent and sealer.The PVC sealer contains PVC RESINS (polyvinyl chloride resin), softening agent, filler, adhesion promoter and thixotropic agent; Be stable mashed prod at normal temperatures; Promptly can " plastify " certain elasticity and intensity are arranged when being heated to certain temperature; The decorating film of well water-fast, oil resistant, media-resistant is arranged, thereby be well suited for making the single-component thermosetting sealer.Body of a motor car is an integral body that is welded into by a lot of iron plates, and there is weld seam in weld, and through coating the PVC sealer in the commissure, and 130-160 ℃ of following heating can reach good sealing and rust-proof effect.
For example; CN 1982365A discloses a kind of high-thixotropic poly (vinyl chloride) plastic sol compsn; Said composition comprises 20-30 weight % SE, 1.5-2.0 weight % dimer acid type polyamide, 1.5-2.0 weight % blocked isocyanate, 0.5-2.0 weight % thixotropic agent, 30-50 weight % stopping composition and 20-30 weight % softening agent, is benchmark with the gross weight of this polyvinyl chloride plastisol composition.Said thixotropic agent is wilkinite, aerosil or polyamide wax.
Existing sealant composition is easy to occur sagging or holder tail phenomenon in use.Conditions of streaking promptly adopts glue spraying gun that sealer is coated on the weld seam, after plastic squeeze needs length to accomplish, carries rifle, because the inertia that glue has viscosity and extrudes, this moment, still some glue stayed on the vehicle body, and this phenomenon promptly is called conditions of streaking.
Summary of the invention
The objective of the invention is to be easy to occur sagging or holder tail phenomenon in use, provide a kind of and avoid occurring sagging or hold in the palm sealant composition of tail phenomenon and preparation method thereof in order to overcome existing sealant composition.
Contriver of the present invention finds; Existing sealant composition is easy to occur sagging in use or asks the reason of tail phenomenon to be; Existing sealant composition uses single thixotropic agent, when the average primary particle diameter of thixotropic agent is less (when for example, 50 nanometers are following); The viscosity of sealer under low shearing speed or stationary state is very big, occurs holder tail phenomenon easily though can prevent sagging in this case; When the average primary particle diameter of thixotropic agent is big (for example, during greater than 50 nanometers), the viscosity of sealer under low shearing speed or stationary state is very little, though can prevent the easy sagging of holder tail phenomenon in this case.Contriver of the present invention also finds, when using the different thixotropic agent of two kinds of average primary particle diameters, the viscosity that can regulate sealer can avoid occurring sagging and holder tail phenomenon simultaneously.
The invention provides a kind of sealant composition; Said composition contains PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; Wherein, said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of thixotropic agent A is different with the average primary particle diameter of thixotropic agent B.
The present invention also provides said preparation of compositions method; This method comprises mixes PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; Wherein, Said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of thixotropic agent A is different with the average primary particle diameter of thixotropic agent B.
Sealant composition provided by the invention uses two kinds of different thixotropic agent of average primary particle diameter, and the viscosity that can regulate sealer can avoid occurring sagging and holder tail phenomenon simultaneously.
Embodiment
Sealant composition provided by the invention contains PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; Wherein, Said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of thixotropic agent A is different with the average primary particle diameter of thixotropic agent B.
Gross weight with said composition is a benchmark, and the content of PVC RESINS can be 5-45 weight %, is preferably 8-30 weight %; The content of softening agent can be 10-60 weight %, is preferably 15-45 weight %; The content of filler can be 15-60 weight %, is preferably 25-50 weight %; The content of adhesion promoter can be 0.1-10 weight %, is preferably 0.2-5 weight %; The content of thixotropic agent A can be 5-25 weight %, is preferably 8-18 weight %; The content of thixotropic agent B can be 2-15 weight %, is preferably 5-12 weight %.
According to sealant composition provided by the invention; Can avoid occurring sagging and holder tail phenomenon as long as use two kinds of different thixotropic agent of average primary particle diameter; Under the preferable case, the average primary particle diameter of said thixotropic agent A can be the 2-50 nanometer, is preferably the 20-45 nanometer; The average primary particle diameter of said thixotropic agent B can be the 51-100 nanometer, is preferably the 60-90 nanometer.
Said thixotropic agent A and thixotropic agent B can be selected from one or more in nano-calcium carbonate, nano-calcium carbonate magnesium, nano barium carbonate, nano-calcium carbonate zinc, nanometer calcium sulfate, nano barium sulfate, nanometer Strontium Sulphate, nano-calcium phosphate, nanometer zinc phosphate, nano barium phthalate, nano silicon oxide, nano zine oxide, nano-titanium oxide, nano aluminium oxide, nano zircite, nanometer silicon carbide, nano-silicon nitride, nano-silicon nitride, Nano titanium nitride, nano-bentonite, nanomete talc powder and the nano kaoline independently of one another, are preferably in nano-calcium carbonate, nano barium carbonate, nanometer calcium sulfate, nano-calcium phosphate, nano silicon oxide, nano zine oxide, nano-bentonite and the nano kaoline one or more.
Said thixotropic agent A and thixotropic agent B can be commercially available.For thixotropic agent A, as adopting nano-calcium carbonate, then can select the type products such as CC-5, CCR-100, SR-450 of Guangdong Enping Gavin Chemical Industrial Enterprise Co., Ltd. for use, also can select the part type product of Guangping nanosecond science and technology Group Co.,Ltd for use.As adopt nano barium carbonate, the portioned product that then can select for use Hengyang City Raw Materials Company of Chemical Industry to produce.As adopt nano silicon oxide, and then can adopt the portioned product of Zibo Hai Nagaoke Materials Co., Ltd, also can adopt the R972 of Degussa company production etc.As adopt nano zine oxide, the portioned product that then can adopt German Bayer company to produce, the many happy board nano zine oxide that also can adopt the many happy chemical industry of Zhuzhou ltd to produce.
For thixotropic agent B; As adopt nano-calcium carbonate; Models such as optional J-13233, J-13319 with the remarkable nanometer novel material in Shanghai limited-liability company; Also can select the CC of Guangdong Enping Gavin Chemical Industrial Enterprise Co., Ltd. for use, type products such as CC-R, type products such as same optional YH302, YH306 with credit Warner, Shanghai rice Science and Technology Co., Ltd..As adopt nano kaoline, can adopt the Luoyang remittance to send out the portioned product of kaolin limited-liability company.
Said PVC RESINS can preferably include pvc resin paste grade and polychloroethylene blending resin for the various polyvinyl resins that are used for sealant composition of routine.The weight ratio of pvc resin paste grade and polychloroethylene blending resin can be 0.5-15: 1, be preferably 0.6-10: 1.For reducing plasticization temperature, also can add vinyl chloride-vinyl acetate copolymer resin in the part blending resin.Pvc resin paste grade and polychloroethylene blending resin all can be commercially available.Stick with paste models such as E5/65C that resin can adopt German Vinnolit company to produce, E70CQ, P9070 like PVC; Models such as the PSM-30 of Shenyang Chemical Manufacture, PSM-31; Models such as the PB1302 of sky, Hefei occasion plastics Ltd (Anhui chemical industry for making chlorine and alkali group), PB1311 also can adopt models such as P450 that Shanghai chlor-alkali group produces, P440.The PVC blending resin can adopt models such as C65V that German Vinnolit company produces, C8/62V, C14/60, the models such as SB-100 that chlor-alkali group in Shanghai produces.The models such as LK170 that the PVC blending resin of chloride vinyl acetate between to for plastic has LG Corp of South Korea to produce, the models such as PCMA-12 that chemical industry group in Shenyang produces.
Said softening agent can be the various softening agent that are used for sealant composition of routine; For example; Can be preferably among DOP, DBP and the DINP one or more for being in DOP (dinoctyl phthalate), DINP (Di Iso Decyl Phthalate), DBP (phthalic acid dibutyl ester), DEP (diethyl phthalate), BBP (butyl benzyl phthalate), Pyromellitic Acid four different monooctyl esters (TOPM), tributyl acetylcitrate (ATBC), tributyl citrate, trioctyl phosphate and the diphenyl octyl phospbate one or more.
Said filler works the effect of regulating hardness and impact resistance; And can reduce the cost of sealer significantly, the filler among the present invention can be in lime carbonate, magnesiumcarbonate, barium carbonate, permanent white, calcium sulfate, talcum powder, kaolin, mica powder and the wollastonite one or several.
Said adhesion promoter can be the various adhesion promoters that are used for sealant composition of routine, for example can be polyamide resin and/or urethane resin.
Compsn provided by the invention can also contain one or more in siccative, stablizer, pigment and the solvent, is benchmark with the gross weight of compsn, and the content of siccative can be 0-10 weight %, is preferably 0.2-8 weight %; The content of stablizer can be 0-8 weight %, is preferably 0.2-5 weight %; The content of pigment can be 0-6 weight %, is preferably 0.1-5 weight %; The content of solvent can be 0-25 weight %, is preferably 0.2-20 weight %.
Said stablizer can be the used various thermo-stabilizers of PVC, for example, can be in rare earth class stablizer, lead sulfate tribasic stablizer, metallic soap class stablizer and the organic tin stablizer one or more.
Said pigment can be in titanium oxide, zinc white (zinc oxide), lithopone (zinc sulfide white) and the stibium trioxide (staple Antimony Trioxide: 99.5Min) one or more.Pigment can provide pure white color for sealer, also can cover sealer yellowing at high temperature in addition.
Said siccative can be in quicklime (unslaked lime), calcium chloride, red oxide of iron and the silica gel one or more.The main effect of siccative is the moisture that absorbs in the sealant composition, prevents that sealer from producing bubble in bake process, thereby improves the intensity and the outward appearance of filming.Siccative also can carry out suitable adjustment to the hardness that is coated with rete after the baking.
The particle diameter D of said filler, siccative and pigment
97Preferably between the 10-35 micron.
Said solvent can be selected for use than the low-boiling organic solvent of softening agent; Can be to take off fragrant solvent oil series D10, D30, D40, D60, D80, D100, D110, D130, D150, D160; The serial 120# of tasteless solvent oil, 150#, 200#, 280#; The PVC viscosity-depression agent, tasteless kerosene, one or more in the aviation kerosene.In the sealer bake process, most of solvent evaporates is removed, so the effect one of solvent is to reduce the viscosity of sealer before the plasticizing so that construction is the solid content that reduces sealing on the other hand, reduces plasticizer dosage to reduce material cost.
The preparation of compositions method that the present invention also provides comprises mixes PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; Wherein, Said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of thixotropic agent A is different with the average primary particle diameter of thixotropic agent B.
Gross weight with said composition is a benchmark, and the consumption of PVC RESINS can be 5-45 weight %, is preferably 8-30 weight %; Plasticizer dosage can be 10-60 weight %, is preferably 15-45 weight %; The consumption of filler can be 15-60 weight %, is preferably 25-50 weight %; The consumption of adhesion promoter can be 0.1-10 weight %, is preferably 0.2-5 weight %; The consumption of thixotropic agent A can be 5-25 weight %, is preferably 8-18 weight %; The consumption of thixotropic agent B can be 2-15 weight %, is preferably 5-12 weight %.
PVC RESINS, softening agent, adhesion promoter, filler thixotropic agent A and thixotropic agent B have done detailed description hereinbefore, repeat no more at this.
When PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent are mixed; This method can also comprise one or more in adding siccative, stablizer, pigment and the solvent; Gross weight with compsn is a benchmark; The consumption of siccative can be 0-10 weight %, is preferably 0.2-8 weight %; The consumption of stablizer can be 0-8 weight %, is preferably 0.2-5 weight %; The consumption of pigment can be 0-6 weight %, is preferably 0.1-5 weight %; The consumption of solvent can be 0-25 weight %, is preferably 0.2-20 weight %.
Siccative, stablizer, pigment and solvent have been done detailed description hereinbefore, repeat no more at this.
Wherein, the blended condition can be identical with its normal condition, as long as the various components of compsn are mixed.The blended temperature can be 5-45 ℃, is preferably 10-35 ℃.When mixing, preferably stir (stirring velocity 100-1500 rev/min) to reach thorough mixing.
Under the preferable case, the preparation method of sealant composition provided by the invention comprises the steps:
(1) softening agent is added in the dispersion bucket of twinax high-speed dispersion machine; The stablizer, siccative and the pigment that then adhesion promoter and selectivity are contained progressively join in the softening agent; And low speed (100-500 rev/min) stirred 5-10 minute, made softening agent, adhesion promoter, stablizer, siccative and pigment homodisperse.
(2) thixotropic agent and filler are progressively joined in the mixture that step (1) obtains; Elder generation's middling speed (500-1000 rev/min) was disperseed 3-5 minute; Then (1000-1500 rev/min) disperseed 5-10 minute at a high speed, and the mixture that thixotropic agent, filler and step (1) are obtained is uniformly dispersed.
(3) PVC RESINS is joined in the mixture that step (2) obtains, with low speed (100-500 rev/min) and (1000-1500 rev/min) dispersed mixture alternately at a high speed, every section jitter time is 2-5 minute, and disperseing total time is 15-20 minute.During dispersion, the temperature of sampling observation mixture remains at below 45 ℃ the temperature of mixture, as is higher than this temperature, then shuts down cooling.
(4) mixture after the step (3) is ground secondary with three roller mills.
(5) optionally, the mixture after grinding is thrown in the adjustment still with spiral pump, added appropriate solvent and low speed (50-150 rev/min) and stirred 3-5 minute, adjust viscosity, vacuumize the bubble of removing in the mixture again.
(6) optionally, filter, divide bucket packing and sealing with 80 purpose stainless steel filtering nets.
Sealant composition provided by the invention can be coated in the weld seam through gelatin extrusion machine, is toasting more than 30 minutes the promptly curable effect that reaches sealing under 140-180 ℃ the condition then.
Come to describe in more detail the present invention through embodiment below.
Embodiment 1
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
(1) 28 weight part plasticizer DOPs (Nanjing petrochemical iy produced) is added twinax high-speed dispersion machine (model: ZXJ-35; The production of Jiangsu diligent industry chemical machinery ltd) in the dispersion bucket; Then with the amino polymeric amide adhesion promoter (model: Versamid115 of 2 weight parts; The production of Cogins company), 2 weight part rare earth class stablizer (models: REC852A; The production of Guangdong Guang Yang high-tech industrial corporation), 2 weight part siccative quicklime (the extraordinary quicklime in Qingpu, Shanghai factory produces) and 1 weight part white titanium pigment (model: CR-826; Ke Maiqi company produces) join in said the dispersions bucket, and 300 rev/mins of stirrings 5 minutes, make softening agent, tackifier, stablizer, siccative and pigment homodisperse.
(2) (average primary particle diameter is 30 nanometers for nano-calcium carbonate, model: CC-5 with 12 weight part thixotropic agent A; Guangdong Enping Gavin Chemical Industrial Enterprise Co., Ltd. produces) and 10 weight part thixotropic agent B (average primary particle diameter is 80 nanometers for nano-calcium carbonate, model: J-13233; Shanghai Zhuoyue Nanometer Material Co., Ltd's production), 20 weight part fillers (water-ground limestone, fineness: 800 orders, the production of wide Fujian material company); In the mixture that adding step (1) obtains; 800 rev/mins were disperseed 5 minutes earlier, and then high speed was disperseed 10 minutes for 1300 rev/mins, and the mixture that thixotropic agent, filler and step (1) are obtained is uniformly dispersed.
(3) PVC with 14 weight parts sticks with paste resin (model: E5/65C; Vinnolit company produces) and 6 weight part PVC blending resin (models: C65V; Vinnolit company produces) join in the mixture that step (2) obtains; With 500 rev/mins of low speed and 1200 rev/mins dispersed mixture alternately, every section jitter time is 2 minutes, and disperseing total time is 20 minutes.The temperature of mixture is remained at below 45 ℃.
(4) mixture after the step (3) is ground two times with three roller mills (model: S-65, Jiangsu diligent industry chemical machinery ltd produces).The temperature of mixture is remained at below 45 ℃.
(5) mixture after will grinding is thrown in the adjustment still with spiral pump, adds 3 weight part D80 solvents (productions of Maoming high mountain marine chemical industry company), and 100 rev/mins were stirred 3 minutes, vacuumizes the bubble in the removal mixture again.
(6) filter with 80 purpose stainless steel filtering nets, obtain sealant composition A1.
Comparative Examples 1
This Comparative Examples is used to explain existing sealant composition.
According to obtaining sealant composition B1 with embodiment 1 identical method; Different is; In step (2); 12 weight part thixotropic agent CC-5 and 10 weight part thixotropic agent J-13233 are replaced with the YH302 nano-calcium carbonate (particle diameter is about 85 nanometers, and credit Warner, Shanghai rice Science and Technology Co., Ltd. produces) of 22 weight parts.
Comparative Examples 2
This Comparative Examples is used to explain existing sealant composition.
According to obtaining sealant composition B2 with embodiment 1 identical method; Different is; In step (2); 12 weight part thixotropic agent CC-5 and 10 weight part thixotropic agent J-13233 are replaced with the thixotropic agent CC-5 of 20 weight parts and the nano silicon of 2 weight parts (model is R972, and average primary particle diameter is 16 nanometers, and Degussa company produces).
Embodiment 2
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
According to making compsn A2 with embodiment 1 identical method, different is that used raw material comprises: 10 weight part PVC stick with paste resin E5/65C; 20 weight part Plasticizer DBP, 42 weight part fillers (water-ground limestone, fineness: 800 orders; Wide Fujian material company produces); 18 weight part thixotropic agent CC-5,6 weight part thixotropic agent J-13233,4 weight part adhesion promoter Versamid115.
Embodiment 3
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
According to making compsn A3 with embodiment 1 identical method, different is that used raw material comprises: 15 weight part PVC stick with paste resin E5/65C; 10 weight part PVC blending resins, 35 weight part Plasticizer DBP, 25 weight part filler (water-ground limestones; Fineness: 800 orders, wide Fujian material company produces), 10 weight part thixotropic agent CC-5; 5 weight part thixotropic agent J-13233,1 weight part adhesion promoter Versamid115.
Embodiment 4
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
According to making compsn A4 with embodiment 1 identical method; Different is; In step (2), with 12 weight part thixotropic agent CC-5 and 10 weight part thixotropic agent J-13233 thixotropic agent A (nano zine oxide, many happy boards with 10 weight parts; Average primary particle diameter is 25 nanometers, and the happy chemical industry of Zhuzhou crowd ltd produces) and 12 weight part thixotropic agent J-13233 replacement.
Embodiment 5
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
According to making compsn A5 with embodiment 1 identical method; Different is; In step (2), 10 weight part thixotropic agent J-13233 are replaced with the nano kaoline (average primary particle diameter is about 75 nanometers, and Luoyang is converged and sent out the production of kaolin limited-liability company) of 10 weight parts.
Embodiment 6
This embodiment is used to explain sealant composition provided by the invention and preparation method thereof.
According to making compsn A6 with embodiment 1 identical method; Different is, in step (2), with 12 weight part thixotropic agent CC-5 and the 10 weight part thixotropic agent J-13233 thixotropic agent A (model: SR-450 with 12 weight parts; Average primary particle diameter is 40 nanometers; Guangdong Enping Gavin Chemical Industrial Enterprise Co., Ltd. produces) and 12 weight part thixotropic agent B (model: CC-R, average primary particle diameter is 60 nanometers, Guangdong Enping Gavin Chemical Industrial Enterprise Co., Ltd. produces) replace.
Embodiment 7-12
Embodiment 7-12 is used for measuring respectively the performance of the sealant composition that embodiment 1-6 makes.
Measure the sealant composition shear viscosity that embodiment 1-6 makes and tail or sagging phenomenon when using, whether occur holding in the palm through following method.
(1) shear viscosity testing method:
With NDJ-79 type viscometer, the 100# rotor, under 750 rev/mins rotating speed, (unit is the shear viscosity of test sealer: mpas).
(2) extrude holder tail testing method:
With HPP sealer is pressurized to 160 kgfs/centimetres 2, adopting diameter is that 2 millimeters circular nozzle is extruded sealer.Observe whether sealer has holder tail phenomenon when receiving rifle after plastic squeeze is accomplished, more than or equal to 3 centimetres, then be commonly considered as serious hangover like hypocarp tail length in the industry, holder tail length is not more than 1 centimetre for qualified.
(3) sag prevention performance test methods:
Sealer is painted the coating of 5 mm thick on the electrophoresis steel plate, the vertical placement observed the perpendicular flow situation of coating, calculates (unit millimeter) with the distance of overall flow after 20 minutes.
The result is as shown in table 1.
Comparative Examples 3 and 4
This Comparative Examples 3 and 4 is used for measuring respectively the performance of the compsn that Comparative Examples 1 and 2 makes.
Compsn B1 that Comparative Examples 1 and 2 is made according to the method identical with embodiment 7-12 and the performance of B2, the result is as shown in table 1.
Table 1
| The embodiment numbering | The sealant composition numbering | Shear viscosity | The sag prevention performance | Extrusion performance (that is holder tail phenomenon) |
| Embodiment 1 | ?A1 | ?5500-6200 | Do not trickle | Qualified |
| Embodiment 2 | ?A2 | ?4500-5000 | Do not trickle | Qualified |
| Embodiment 3 | ?A3 | ?5000-5500 | Do not trickle | Qualified |
| Embodiment 4 | ?A4 | ?5500-6000 | Do not trickle | Qualified |
| Embodiment 5 | ?A5 | ?4500-5000 | Do not trickle | Qualified |
| Embodiment 6 | ?A6 | ?4500-5000 | Do not trickle | Qualified |
| Comparative Examples 1 | ?B1 | ?4000-4500 | Trickling 5-8 millimeter | Qualified |
| Comparative Examples 2 | ?B2 | ?14000-16000 | Do not trickle | The holder tail is serious |
Can find out from the test result shown in the table 1; Sagging and holder tail phenomenon do not appear in the compsn A1-A6 of embodiment 1-6 when using; Though the compsn of Comparative Examples 1 does not hold in the palm tail when using; But the sagging phenomenon occurs,, ask tail serious though the sagging phenomenon does not appear in the compsn of Comparative Examples 2 when using.Explain that sealant composition provided by the invention makes and to avoid occurring sagging and holder tail phenomenon simultaneously.
Claims (11)
1. sealant composition; Said composition contains PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; It is characterized in that; Said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of said thixotropic agent A is the 2-50 nanometer, and the average primary particle diameter of said thixotropic agent B is the 51-100 nanometer.
2. compsn according to claim 1 wherein, is a benchmark with the gross weight of said composition; The content of PVC RESINS is 5-45 weight %; The content of softening agent is 10-60 weight %, and the content of filler is 15-60 weight %, and the content of adhesion promoter is 0.1-10 weight %; The content of thixotropic agent A is 5-25 weight %, and the content of thixotropic agent B is 2-15 weight %.
3. compsn according to claim 1, wherein, the average primary particle diameter of said thixotropic agent A is the 20-45 nanometer, the average primary particle diameter of said thixotropic agent B is the 60-90 nanometer.
4. according to claim 1,2 or 3 described compsns; Wherein, said thixotropic agent A and thixotropic agent B are selected from one or more in nano-calcium carbonate, nano-calcium carbonate magnesium, nano barium carbonate, nano-calcium carbonate zinc, nanometer calcium sulfate, nano barium sulfate, nanometer Strontium Sulphate, nano-calcium phosphate, nanometer zinc phosphate, nano barium phthalate, nano silicon oxide, nano zine oxide, nano-titanium oxide, nano aluminium oxide, nano zircite, nanometer silicon carbide, nano-silicon nitride, Nano titanium nitride, nano-bentonite, nanomete talc powder and the nano kaoline independently of one another.
5. compsn according to claim 1 and 2, wherein, said PVC RESINS comprises pvc resin paste grade and polychloroethylene blending resin, the weight ratio of pvc resin paste grade and polychloroethylene blending resin is 0.5-15: 1.
6. compsn according to claim 1 and 2; Wherein, said softening agent is one or more in dinoctyl phthalate, Di Iso Decyl Phthalate, phthalic acid dibutyl ester, diethyl phthalate, butyl benzyl phthalate, Pyromellitic Acid four different monooctyl esters, tributyl acetylcitrate, tributyl citrate, trioctyl phosphate and the diphenyl octyl phospbate; Said filler is one or several in lime carbonate, magnesiumcarbonate, barium carbonate, permanent white, calcium sulfate, talcum powder, kaolin, mica powder and the wollastonite; Said adhesion promoter is polyamide resin and/or urethane resin.
7. compsn according to claim 1, wherein, said composition also contains siccative, stablizer and pigment; Gross weight with compsn is a benchmark; The content of siccative is 0.2-8 weight %, and the content of stablizer is 0.2-5 weight %, and the content of pigment is 0.1-5 weight %.
8. the said preparation of compositions method of claim 1; This method comprises mixes PVC RESINS, softening agent, filler, adhesion promoter and thixotropic agent; It is characterized in that; Said thixotropic agent comprises thixotropic agent A and thixotropic agent B, and the average primary particle diameter of thixotropic agent A is different with the average primary particle diameter of thixotropic agent B.
9. method according to claim 8 wherein, is a benchmark with the gross weight of said composition; The consumption of PVC RESINS is 5-45 weight %; Plasticizer dosage is 10-60 weight %, and the consumption of filler is 15-60 weight %, and the consumption of adhesion promoter is 0.1-10 weight %; The consumption of thixotropic agent A is 5-25 weight %, and the consumption of thixotropic agent B is 2-15 weight %.
10. according to Claim 8 or 9 described methods, wherein, the average primary particle diameter of said thixotropic agent A is the 2-50 nanometer, and the average primary particle diameter of said thixotropic agent B is the 51-100 nanometer.
11. method according to claim 10, wherein, the average primary particle diameter of said thixotropic agent A is the 20-45 nanometer, and the average primary particle diameter of said thixotropic agent B is the 60-90 nanometer.
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| CN105263982B (en) * | 2013-06-07 | 2018-10-02 | 科思创德国股份公司 | Polyol formulation product containing filler and polyurethane prepared therefrom |
| CN105504771A (en) * | 2015-12-30 | 2016-04-20 | 浙江索凡胶粘制品有限公司 | Antibacterial and antistatic protective film for automobile and preparation method thereof |
| CN105419305A (en) * | 2015-12-30 | 2016-03-23 | 浙江索凡胶粘制品有限公司 | Automobile protection film and preparation method therefor |
| CN107573674A (en) * | 2017-09-06 | 2018-01-12 | 苏州纽东精密制造科技有限公司 | A kind of preparation method of encapsulant |
| CN108314972A (en) * | 2018-01-15 | 2018-07-24 | 江苏亚龙数码科技有限公司 | A kind of compound resin base acid and alkali-resistance adhesive tape and preparation method thereof |
| CN108274153A (en) * | 2018-02-01 | 2018-07-13 | 江兵 | A kind of special scaling powder of solder(ing) paste and preparation method thereof |
| CN114836087B (en) * | 2022-03-09 | 2023-07-25 | 安丹达工业技术(上海)有限公司 | Composition for welding between PVC film and TPU film, preparation method and welding method |
| CN114851420A (en) * | 2022-05-19 | 2022-08-05 | 石嘴山市塑料厂 | Mixing method and equipment for hard polyvinyl chloride for plastic pipe production |
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| US3627707A (en) * | 1968-12-31 | 1971-12-14 | Ball Corp | Thixotropic polyvinyl chloride plastisol composition |
| CN1982365A (en) * | 2005-12-12 | 2007-06-20 | 上海理日化工新材料有限公司 | High-thixotropic poly(vinyl chloride) plastic sol |
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| US3627707A (en) * | 1968-12-31 | 1971-12-14 | Ball Corp | Thixotropic polyvinyl chloride plastisol composition |
| CN1982365A (en) * | 2005-12-12 | 2007-06-20 | 上海理日化工新材料有限公司 | High-thixotropic poly(vinyl chloride) plastic sol |
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| JP昭60-229980A 1985.11.15 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893436A (en) * | 2015-05-19 | 2015-09-09 | 苏州德翔装饰工程有限公司 | Composite nanometer weather-proof waterproof coating and preparing method thereof |
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| CN101423743A (en) | 2009-05-06 |
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