CN102731924A - Environmental protection type PVC plastisol and application thereof - Google Patents
Environmental protection type PVC plastisol and application thereof Download PDFInfo
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- CN102731924A CN102731924A CN201210150796XA CN201210150796A CN102731924A CN 102731924 A CN102731924 A CN 102731924A CN 201210150796X A CN201210150796X A CN 201210150796XA CN 201210150796 A CN201210150796 A CN 201210150796A CN 102731924 A CN102731924 A CN 102731924A
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Abstract
The present invention relates to an environmental protection type PVC plastisol, wherein the plastisol composition adopts an environmental protection type non-o-benzene plasticizer and an environmental protection heat stabilizer, such that various performances of the coating are ensured while environmental protection performance of the plastisol material is ensured. Components of the plastisol comprise a PVC paste resin, a non-o-benzene environmental protection plasticizer, an environmental protection heat stabilizer, nano active calcium carbonate, tween 80, an adhesion reinforcing agent, hydrogenated castor oil and carbon black. The plastisol material is coated on tinplate, wherein the thickness is 0.5 mm; and baking is performed for 40 minutes at a temperature of 120 DEG C, wherein the coating does not occur yellowing, the impact property is good (a QCT-I paint film impactor is adopted, and the optimal result is more than 100 cm.kg), the flexibility is good (a QTX paint film flexibility tester is adopted, and the optimal result is 0.5 mm), and the adhesion test is cohesive failure. The prepared plastisol of the present invention is mainly used for seam welding sealing glue of automobile, stone-hitting resisting coating of chassis, and other fields.
Description
Technical field
The present invention relates to the pvc plastisol field, relate in particular to a kind of environment-friendly type PVC plastisol and application thereof.
Background technology
Antirust, the sealing property of automobile is directly connected to the comfortableness of automobile, attractive in appearance and integeral vehicle life.If the automobile rust preventing is improper, vehicle body will occur corrosion at short notice pernicious damage phenomenons such as perforation take place even.At present, painting dressing automobiles is still the antirust main means of automobile, but owing at some privileged sites such as weld seam, because point effect makes steel plate port position paint film thinner, does not have required rust-proof effect.In addition, because the existence of weld seam causes rainwater, dust etc. to invade the car chamber interior easily and pollute indoor environment, so we needs the weld seam sealer of a kind of rust protection, good seal performance.Pvc plastisol is as the best a kind of sizing material of the most frequently used over-all properties of present stage, and it is widespread use in the weld seam sealer not only, at the bottom of car, wheel cover and splash pan etc. locate and can also use as stone-impact-proof paint.
In decades recently; The PVC goods are people's bone of contentions to the pollution problem of environment always, and the maximum shortcoming of polyvinyl chloride resin is a thermostability, and structure is unstable relatively to heat, light; Take off the HCl reaction easily, therefore in the course of processing, need to add a large amount of auxiliary agents and overcome.Portioned product is that more serious destruction is arranged to environment in the at present used PVC auxiliary agent, and the problem of pvc plastisol aspect environment protection also attracts many disputes thus, and dispute point wherein also mainly concentrates on the processing aid aspect.Though because polyvinyl chloride resin itself in process of production can be in resin residual a part of carcinogens vinyl chloride monomer, along with the continuous progress of polyvinyl chloride resin production technology, the vinylchlorid residue problem is well controlled.Therefore its environmental issue has just mainly focused on this one side of auxiliary agent, and wherein topmost problem concentrates on softening agent and stablizer two broad aspect.
At present, to discovery after its further investigation, DOP especially has a large amount of remnants in lung at human body to the pvc plastisol primary plasticizer DOP (DOP) of domestic main flow through relevant researchist.U.S. authoritative institution has carried out biological assay to the DOP carinogenicity, and the result finds that DOP has very strong carinogenicity to animal livers.DOP just became one of 18 types of chemicalses of European Union's forbidding before many years in addition.Everything shows that all the caused problem of environmental pollution of DOP has caused the enough attention of people to it.Contain C
6～C
20The pyrrolidone of straight chained alkyl, side chain alkyl and cyclic alkyl can be as the softening agent of PVC, wherein C
8And C
12Pyrrolidone the most common.Alkyl pyrrolidone is its environment friendly as the sharpest edges of PVC softening agent.The alkyl group that has certain-length in addition in the alkyl pyrrolidone exists, so it has good consistency to polyvinyl chloride resin itself.Simultaneously, there are some researches show that the plasticising effect of alkyl pyrrolidone in screening formulation is better than DINP.The one two propyl alcohol dibenzoates that contract have good consistency as a kind of monomer-plasticizer and various kinds of resin; It also has many distinguishing features such as consistency, static resistance, resistance to crocking, anti-volatility and nontoxicity when possessing the general character of general softening agent, and also there is outstanding behaviours aspects such as the tensile strength of goods, resistance to tearing and glossiness.
Stablizer is as another large focal spot of environmental issue concern in the pvc plastisol, and is same because had heavy metal elements such as a large amount of lead, cadmium in the in the past used main flow stablizer, and makes the exploitation of novel non-toxic heat stabilizer and use suddenly wait to advocate.In recent years, China progressively payes attention to the toxicity problem of PVC thermo-stabilizer, and low toxicity, nontoxic PVC thermo-stabilizer have become Development Trend.Universally acknowledged PVC low toxicity thermo-stabilizer is mainly organic tin; But the toxicity problem to the organic tin thermo-stabilizer has had new understanding in recent years; In heat is that organic tin volatilizees fast, emits toxic substance, can produce very strong injury to operator's immunity system.Calcium/zinc composite heat stabilizer is to have one of kind of development prospect in the non-toxic stabilizer most, has characteristics such as cheap, nontoxic, efficient, can effectively replace the imported product of expensive, reduces product cost.The hydrotalcite thermo-stabilizer is a kind of novel inorganic PVC auxiliary heat stabilizer of the eighties in last century exploitation, can with the collaborative thermostability that improves of thermo-stabilizer such as zinc soap.Its thermostable effect is better than barium soap, calcium soap and their mixture.The hydrotalcite thermo-stabilizer also has the advantage of good insulating, good, the good weatherability of the transparency and good processability in addition, does not receive sulphide staining, is a kind of nontoxic auxiliary heat stabilizer.
Summary of the invention
The object of the present invention is to provide a kind of environment-friendly type PVC plastisol.This pvc plastisol is on the basis of traditional plastisol component, to have selected environment-friendly type softening agent and environment-friendly type thermo-stabilizer for use.Guaranteeing under the situation that the original performance of sizing material does not run off, effectively must improve its environment friendly.
Above-mentioned purpose realizes with environmentally friendly pvc plastisol compsn of the present invention.This pvc plastisol compsn comprises that the PVC of 100-500 mass parts sticks with paste resin, the non-adjacent benzene class environment-friendly plasticizer of 200-500 mass parts, the environmental protection thermo-stabilizer of 10-50 mass parts, the nm-class active calcium carbonate of 200-400 mass parts, the tween 80 of 0-100 mass parts, the adhesion enhancer of 0-50 mass parts, the THIXCIN of 0-50 mass parts and the carbon black of 0-50 mass parts.
The concrete preparation method of plastisol composition is: PVC is stuck with paste resin, thermo-stabilizer, tween 80, THIXCIN, adhesion enhancer and carbon black join first being uniformly dispersed in the plasticiser system; Then load weighted nm-class active calcium carbonate is joined in this system in batches; Controlling certain rate of dispersion makes system remain on continuation high speed dispersion 3h under 50 ℃ of left and right sides temperature conditionss; At last scattered sizing material is moved on to deaeration 5h in the vacuum unit, discharging.On tinplate tin, evenly be coated with the sizing material of one deck 0.5mm, toast 40min down at 120 ℃, a series of physical and chemical performances of test coating.
Compared with prior art, the inventive method has the following advantages:
1, this method is selected the environment-friendly type plasticiser system for use, has improved the environmental-protecting performance of sizing material and coating;
2, this method is selected for use and is possessed synergistic environment-friendly type composite thermal stabilizer system, on the basis of common environmental protection thermo-stabilizer, further improves the thermal stability and the feature of environmental protection.
The practical implementation method
Embodiment 1
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 15g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 30g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 2: 1 alkyl pyrrolidones and contract and are uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 38Pas/25 ℃, viscosity is 57Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, coating is xanthochromia slightly, and impact property is good, and (the QCT-I paint film impactor, 100cmkg), the tack test result is a cohesive failure.
Embodiment 2
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 15g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 30g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 1: 2 alkyl pyrrolidone and contracts and is uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 35Pas/25 ℃, viscosity is 54Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, coating is xanthochromia slightly, and impact property is good, and (the QCT-I paint film impactor, 100cmkg), the tack test result is a cohesive failure.
Embodiment 3
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 15g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 45g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 2: 1 alkyl pyrrolidones and contract and are uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 39Pas/25 ℃, viscosity is 56Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, coating is xanthochromia slightly, and impact property is good, and (the QCT-I paint film impactor, 99cmkg), the tack test result is a cohesive failure.
Embodiment 4
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 15g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 45g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 1: 2 alkyl pyrrolidone and contracts and is uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 36Pas/25 ℃, viscosity is 54Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, coating is xanthochromia slightly, and impact property is good, and (the QCT-I paint film impactor, 100cmkg), the tack test result is a cohesive failure.
Embodiment 5
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 30g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 30g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 2: 1 alkyl pyrrolidones and contract and are uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 40Pas/25 ℃, viscosity is 56Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, xanthochromia does not take place in coating, and impact property is good, and (the QCT-I paint film impactor, 98cmkg), the tack test result is a cohesive failure.
Embodiment 6
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 30g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 30g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 1: 2 alkyl pyrrolidone and contracts and is uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 40Pas/25 ℃, viscosity is 57Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.After 120 ℃ of curing 40min, xanthochromia does not take place in coating, and impact property is good, and (the QCT-I paint film impactor, 99cmkg), the tack test result is a cohesive failure.
Embodiment 7
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 30g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 30g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 45g carbon black, and to join mass ratio be that 2: 1 alkyl pyrrolidones and contract and are uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 42Pas/25 ℃, viscosity is 59Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.Through 120 ℃ solidify 40min after, xanthochromia does not take place in coating, impact property good (the QCT-I paint film impactor,＞100cmkg), the tack test result is a cohesive failure.
Embodiment 8
350gPVC is stuck with paste resin, 1: 1 nano hydrotalcite class of 30g mass ratio and calcium/zinc complex class composite thermal stabilizer, 65g tween 80,20g THIXCIN, 3: 2 blocked polyurethane prepolymer of 45g mass ratio and the compound adhesion enhancer of dimer acid type Versamid and 30g carbon black, and to join mass ratio be that 1: 2 alkyl pyrrolidone and contracts and is uniformly dispersed in the composite elasticizer of two propyl alcohol dibenzoates; The 400g nm-class active calcium carbonate joins this system in batches then; Control certain rate of dispersion and make system high speed dispersion 2h under the situation of 50 ℃ of maintenances; Vacuum defoamation 5h then, discharging.
The above-mentioned black paste pvc plastisol that makes stored after half a year, and viscosity increases little (initial viscosity 41Pas/25 ℃, viscosity is 59Pas/25 ℃ after half a year), and it is constant to re-use performance.This plastisol is uniformly coated on the tinplate tin iron plate, and 0.5mm is thick.Through 120 ℃ solidify 40min after, xanthochromia does not take place in coating, impact property good (the QCT-I paint film impactor,＞100cmkg), the tack test result is a cohesive failure.
Claims (4)
1. an environment-friendly type PVC plastisol composition is characterized in that the mass parts of its feed composition and each component is respectively: the PVC paste resin of 100-500 mass parts, the non-adjacent benzene class environment-friendly plasticizer of 200-500 mass parts, the environmental protection thermo-stabilizer of 10-50 mass parts, the nm-class active calcium carbonate of 200-400 mass parts, the tween 80 of 0-100 mass parts, the adhesion enhancer of 0-50 mass parts, the THIXCIN of 0-50 mass parts and the carbon black of 0-50 mass parts.
2. pvc plastisol compsn according to claim 1 is characterized in that described non-adjacent benzene class environment-friendly plasticizer comprises the contract mixture of two propyl alcohol dibenzoates or they of alkyl pyrrolidone.
3. pvc plastisol compsn according to claim 1 is characterized in that described environmental protection thermo-stabilizer is the mixture of nano hydrotalcite thermo-stabilizer and calcium/zinc composite heat stabilizer.
4. pvc plastisol compsn according to claim 1 is characterized in that described adhesion enhancer is the mixture of blocked polyurethane prepolymer and dimer acid type Versamid.
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Cited By (5)
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| CN104559847A (en) * | 2014-12-23 | 2015-04-29 | 苏州华源包装股份有限公司 | Foam adhesive and preparation method thereof |
| CN104857882A (en) * | 2015-06-04 | 2015-08-26 | 山东万图高分子材料有限公司 | Preparation method and device for polyvinyl chloride dipping plastic fluid |
| CN107319895A (en) * | 2017-06-23 | 2017-11-07 | 威海海马大河地毯有限公司 | A kind of block magnetic carpet and preparation method thereof |
| CN107474445A (en) * | 2017-10-17 | 2017-12-15 | 安徽大学 | Environment-friendly low-temperature curing PVC plastisol and preparation method thereof |
| CN111777831A (en) * | 2020-08-21 | 2020-10-16 | 柳州紫荆技术转移中心有限公司 | Graphene modified PVC plastisol for automobile chassis and preparation method thereof |
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| CN101402772A (en) * | 2008-10-30 | 2009-04-08 | 匡建钢 | Low-temperature plasticizing type PVC plastic colloidal sols and method of producing the same |
| CN101575425A (en) * | 2009-06-25 | 2009-11-11 | 中南大学 | PVC compound heat stabilizer prepared from magnesium/aluminum rare-earth hydrotalcite and application thereof |
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| CN101331170A (en) * | 2005-11-14 | 2008-12-24 | Isp投资有限公司 | Plasticized PVC compositions |
| CN101402772A (en) * | 2008-10-30 | 2009-04-08 | 匡建钢 | Low-temperature plasticizing type PVC plastic colloidal sols and method of producing the same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559847A (en) * | 2014-12-23 | 2015-04-29 | 苏州华源包装股份有限公司 | Foam adhesive and preparation method thereof |
| CN104857882A (en) * | 2015-06-04 | 2015-08-26 | 山东万图高分子材料有限公司 | Preparation method and device for polyvinyl chloride dipping plastic fluid |
| CN104857882B (en) * | 2015-06-04 | 2016-10-19 | 山东万图高分子材料有限公司 | Preparation method and the device of liquid is moulded in the leaching of a kind of polrvinyl chloride |
| CN107319895A (en) * | 2017-06-23 | 2017-11-07 | 威海海马大河地毯有限公司 | A kind of block magnetic carpet and preparation method thereof |
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| CN107474445A (en) * | 2017-10-17 | 2017-12-15 | 安徽大学 | Environment-friendly low-temperature curing PVC plastisol and preparation method thereof |
| CN111777831A (en) * | 2020-08-21 | 2020-10-16 | 柳州紫荆技术转移中心有限公司 | Graphene modified PVC plastisol for automobile chassis and preparation method thereof |
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Application publication date: 20121017 |