CN105111614A - Nontoxic environment-friendly high-flame-retardancy PVC (polyvinyl chloride) wood-plastic material - Google Patents
Nontoxic environment-friendly high-flame-retardancy PVC (polyvinyl chloride) wood-plastic material Download PDFInfo
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- CN105111614A CN105111614A CN201510530427.7A CN201510530427A CN105111614A CN 105111614 A CN105111614 A CN 105111614A CN 201510530427 A CN201510530427 A CN 201510530427A CN 105111614 A CN105111614 A CN 105111614A
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Abstract
The invention discloses a nontoxic environment-friendly high-flame-retardancy PVC (polyvinyl chloride) wood-plastic material which is prepared from the following raw materials in parts by weight: 100-105 parts of PVC, 15-18 parts of kaolin, 30-35 parts of wood meal, 5-7 parts of carbonyl powder, 0.8-1.2 parts of chalcanthite, 4-6 parts of nitrile-butadiene rubber, 0.2-0.4 part of titanate coupling agent NDZ201, 0.4-0.6 part of silane coupling agent YH, 3-4 parts of fatty acid calcium salt, 5-6 parts of magnesium oxide hydrate, 3-4 parts of polyaniline and 6-7 parts of refractory brick powder. The wood-plastic material disclosed by the invention has the advantages of favorable flame retardancy, favorable mechanical properties, no toxicity, environment friendliness, simple preparation method, wide raw material sources and lower cost, and is suitable for large-scale popularization and use.
Description
Technical field
The present invention relates to wood plastic composite technical field, particularly relate to a kind of pvc Wood-plastic material of asepsis environment-protecting high flame retardant.
Background technology
As far back as last century, the forties people just find paracril and pvc and are studied by technology, paracril has certain polarity, with the solubility parameter of pvc closely, they are amorphous polymers, there is good consistency between the two, therefore usual that they are blended, obtained alloy material has excellent weathering resistance, solvent resistance and good mechanical strength and processing characteristics, is widely used in the fields such as sealing member, electric wire and cable jacket, oil pipe.The alloy material of paracril and polyvinyl chloride is divided into cross-linking type and non-crosslinked type, and the alloy of cross-linking type is insoluble not to be melted, and is difficult to regeneration, causes severe contamination to environment, although and noncrosslinking alloy processing characteristics is better, mechanical property is undesirable.
China is the country that a timber does not enrich, and underproducely causes the demand that can not meet market.Enhancing along with environmental consciousness and the protection to trees, wood plastic composite swarms into the visual field of people gradually, and Wood-plastic material is that one wood powder, xylon or other vegetable fibre fill thermoplastic polymer composite material, has the advantage of timber and plastics concurrently.But existing Wood-plastic material is also difficult to the performance requriements meeting market, and its erosion-resisting characteristics is poor, and especially shock strength sharply declines along with the increase of wood powder content, is difficult to the requirement meeting premium quality product.The polarity of wood powder is very strong, and the consistency between it and thermoplastics is poor, have impact on the mechanical property of matrix material greatly.Kaolin has obtained fine application as a kind of important reinforcing filler or functional filler in plastics and various rubber materials.On the one hand, kaolin output is large, price is low, with polymer-based carbon volume recombination, can significantly reduce plastics cost, on the other hand, kaolinic interpolation, the thermostability of polymer composites, hardness, rigidity can be improved and give material some special physicals, but the raw ore kaolin of directly exploitation at present, and particle size is little, surface energy is high, easy reunion, surface is containing hydrophilic hydroxy group and oxy radical, totally different with macromolecular material interface, poor compatibility, is difficult to dispersed.Therefore need to carry out modification to the interface of wood powder and plastics, to improve the consistency between them, and will process kaolin surface, improve the poor compatibility with macromolecular material interface, make the performance of dispersed raising matrix material.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of pvc Wood-plastic material of asepsis environment-protecting high flame retardant.
The present invention is achieved by the following technical solutions:
A pvc Wood-plastic material for asepsis environment-protecting high flame retardant, is made up of the raw material of following weight part: polyvinyl chloride 100-105, kaolin 15-18, wood powder 30-35, carbonyl iron dust 5-7, cupric sulfate pentahydrate 0.8-1.2, paracril 4-6, titanate coupling agent NDZ2010.2-0.4, silane coupling agent YH620.4-0.6, fatty acid calcium 3-4, hydrated magnesium 5-6, polyaniline 3-4, refractory brick powder 6-7;
The pvc Wood-plastic material of described a kind of asepsis environment-protecting high flame retardant, be made up of following concrete steps:
(1) titanate coupling agent NDZ201 and 90% aqueous isopropanol are configured to coupling agent solution according to 1:2, are repeatedly added drop-wise in the kaolin of high-speed stirring, after stirring at 100 DEG C vacuum-drying 3-5h and at room temperature place 24h for subsequent use;
(2) cupric sulfate pentahydrate was refined on ball mill 100 mesh sieves for subsequent use, then by paracril first thin-pass 3-5 time in two roller mill, add copper sulfate for subsequent use several times again, continue mixing 10-15 minute, be added in micropulverizer together with the kaolin prepared with step (1) after softening and stir 2-3min, kaolin is wrapped by completely, for subsequent use after cooling;
(3) wood powder is added in acetone stir 7h after carry out suction filtration, at 120 DEG C, constant weight is dried to after end, silane coupling agent YH62 is added the ethanolic soln of 95% according to the ratio of 1:3, wood powder is added after stirring, after high-speed mixing 5-7min, add carbonyl iron dust to continue to stir 3-5min, finally put into baking oven and dry 1-1.5h at 120 DEG C, for subsequent use after cooling;
(4) material prepared by step (2) and step (3) is added in high-speed mixer mixes, then add discharging after polyvinyl chloride (PVC) RESINS and other leftover materials high-speed mixing 8-10min, be cooled to room temperature, obtained dry blend;
(5) add in twin screw extruder by the dry blend that step (4) is obtained, optimum configurations is rotating speed 20r/min, and extrusion temperature is 168 DEG C, 178 DEG C, 175 DEG C, 168 DEG C and 185 DEG C, and extrusion moulding can obtain wood plastic composite.
Advantage of the present invention is: the present invention adopts titanate coupling agent process kaolin, hydrophilic radical and the kaolin surface hydroxyl reaction of titanate coupling agent form covalent linkage, kaolin oleophilic drainage is made to become the characteristic of oleophilic drainage, itrile group in paracril and cupric ion occur coordination cross-linked under heat, material after crosslinked is not only at high temperature reversible, recoverable and pollution-free, and there is the character of thermoplastics, the strength of materials can be improved, the present invention is coated on kaolin surface, add in Wood-plastic material and can greatly improve its high pressure, high-strength, the characteristic of high-ductility, wood powder can increase the surface compatability with pvc by coupling processing, and mix with carbonyl iron dust and improves further its dispersiveness, and the wear resistance of material can also be improved, the performances such as intensity, the hydrated magnesium added, polyaniline and refractory brick powder reduce the production cost of material, and effectively raise the fire-resistant of Wood-plastic material, fire-retardant and tensile strength, Wood-plastic material prepared by the present invention has good fire-retardant and mechanical property, asepsis environment-protecting, the method of preparation is simple, raw material sources are extensive and cost is lower, suitable large-scale promotion uses.
Embodiment
A pvc Wood-plastic material for asepsis environment-protecting high flame retardant, is made up of the raw material of following weight part (kilogram): polyvinyl chloride 100, kaolin 15, wood powder 30, carbonyl iron dust 5, cupric sulfate pentahydrate 0.8, paracril 4, titanate coupling agent NDZ2010.2, silane coupling agent YH620.4, fatty acid calcium 3, hydrated magnesium 5, polyaniline 3, refractory brick powder 6;
The pvc Wood-plastic material of described a kind of asepsis environment-protecting high flame retardant, be made up of following concrete steps:
(1) titanate coupling agent NDZ201 and 90% aqueous isopropanol are configured to coupling agent solution according to 1:2, are repeatedly added drop-wise in the kaolin of high-speed stirring, after stirring at 100 DEG C vacuum-drying 3h and at room temperature place 24h for subsequent use;
(2) cupric sulfate pentahydrate was refined on ball mill 100 mesh sieves for subsequent use, then by paracril first thin-pass 3 times in two roller mill, add copper sulfate for subsequent use several times again, continue mixing 10 minutes, be added in micropulverizer together with the kaolin prepared with step (1) after softening and stir 2min, kaolin is wrapped by completely, for subsequent use after cooling;
(3) wood powder is added in acetone stir 7h after carry out suction filtration, at 120 DEG C, constant weight is dried to after end, silane coupling agent YH62 is added the ethanolic soln of 95% according to the ratio of 1:3, wood powder is added after stirring, after high-speed mixing 5min, add carbonyl iron dust to continue to stir 3min, finally put into baking oven and dry 1h at 120 DEG C, for subsequent use after cooling;
(4) material prepared by step (2) and step (3) is added in high-speed mixer mixes, then add discharging after polyvinyl chloride (PVC) RESINS and other leftover materials high-speed mixing 8min, be cooled to room temperature, obtained dry blend;
(5) add in twin screw extruder by the dry blend that step (4) is obtained, optimum configurations is rotating speed 20r/min, and extrusion temperature is 168 DEG C, 178 DEG C, 175 DEG C, 168 DEG C and 185 DEG C, and extrusion moulding can obtain wood plastic composite.
According to wood plastic composite prepared by embodiment, carry out performance test to it, result is as follows:
Tensile strength is 32.8MPa, and shock strength is 55.7KJ/m2, and elongation at break is 3.5%, and flexural strength is at 15.5MPa, and water-intake rate is 0.7%, and percent thermal shrinkage is 0.5%.
Claims (2)
1. the pvc Wood-plastic material of an asepsis environment-protecting high flame retardant, it is characterized in that, be made up of the raw material of following weight part: polyvinyl chloride 100-105, kaolin 15-18, wood powder 30-35, carbonyl iron dust 5-7, cupric sulfate pentahydrate 0.8-1.2, paracril 4-6, titanate coupling agent NDZ2010.2-0.4, silane coupling agent YH620.4-0.6, fatty acid calcium 3-4, hydrated magnesium 5-6, polyaniline 3-4, refractory brick powder 6-7.
2. the pvc Wood-plastic material of a kind of asepsis environment-protecting high flame retardant according to claim 1, is characterized in that, be made up of following concrete steps:
(1) titanate coupling agent NDZ201 and 90% aqueous isopropanol are configured to coupling agent solution according to 1:2, are repeatedly added drop-wise in the kaolin of high-speed stirring, after stirring under 100 ° of C vacuum-drying 3-5h and at room temperature place 24h for subsequent use;
(2) cupric sulfate pentahydrate was refined on ball mill 100 mesh sieves for subsequent use, then by paracril first thin-pass 3-5 time in two roller mill, add copper sulfate for subsequent use several times again, continue mixing 10-15 minute, be added in micropulverizer together with the kaolin prepared with step (1) after softening and stir 2-3min, kaolin is wrapped by completely, for subsequent use after cooling;
(3) wood powder is added in acetone stir 7h after carry out suction filtration, under 120 ° of C, constant weight is dried to after end, silane coupling agent YH62 is added the ethanolic soln of 95% according to the ratio of 1:3, wood powder is added after stirring, after high-speed mixing 5-7min, add carbonyl iron dust to continue to stir 3-5min, finally put into baking oven and dry 1-1.5h under 120 ° of C, for subsequent use after cooling;
(4) material prepared by step (2) and step (3) is added in high-speed mixer mixes, then add discharging after polyvinyl chloride (PVC) RESINS and other leftover materials high-speed mixing 8-10min, be cooled to room temperature, obtained dry blend;
(5) add in twin screw extruder by the dry blend that step (4) is obtained, optimum configurations is rotating speed 20r/min, and extrusion temperature is 168 ° of C, 178 ° of C, 175 ° of C, 168 ° of C and 185 ° C, and extrusion moulding can obtain wood plastic composite.
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| CN201510530427.7A CN105111614A (en) | 2015-08-26 | 2015-08-26 | Nontoxic environment-friendly high-flame-retardancy PVC (polyvinyl chloride) wood-plastic material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358681A (en) * | 2020-11-05 | 2021-02-12 | 湖州新金砺纸业有限责任公司 | Preparation method of low-cost high-strength PP hollow plate |
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| CN101698734A (en) * | 2009-10-28 | 2010-04-28 | 武汉理工大学 | Method for preparing shock-resistant hard PVC material through coordination crosslinking |
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|---|---|---|---|---|
| CN112358681A (en) * | 2020-11-05 | 2021-02-12 | 湖州新金砺纸业有限责任公司 | Preparation method of low-cost high-strength PP hollow plate |
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