CN108102256A - A kind of PVC combinations material and preparation method suitable for extrusion molding - Google Patents
A kind of PVC combinations material and preparation method suitable for extrusion molding Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000001125 extrusion Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 92
- 239000002699 waste material Substances 0.000 claims abstract description 68
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000012745 toughening agent Substances 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 239000012188 paraffin wax Substances 0.000 claims abstract description 7
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000008117 stearic acid Substances 0.000 claims abstract description 6
- 239000010438 granite Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000004579 marble Substances 0.000 claims abstract 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 58
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 58
- 239000000203 mixture Substances 0.000 claims description 22
- 150000004645 aluminates Chemical class 0.000 claims description 9
- 238000007873 sieving Methods 0.000 claims description 7
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims 4
- 239000003381 stabilizer Substances 0.000 claims 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000010792 warming Methods 0.000 claims 2
- 241001062472 Stokellia anisodon Species 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 60
- 239000011707 mineral Substances 0.000 abstract description 60
- 239000006084 composite stabilizer Substances 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 238000003723 Smelting Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 5
- 239000010881 fly ash Substances 0.000 abstract description 5
- 239000002893 slag Substances 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 abstract description 2
- 229920001587 Wood-plastic composite Polymers 0.000 abstract description 2
- 230000004913 activation Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000005034 decoration Methods 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract description 2
- 239000011155 wood-plastic composite Substances 0.000 abstract description 2
- 239000010812 mixed waste Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 22
- 239000000047 product Substances 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- -1 aluminate Ester Chemical class 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- RAHHITDKGXOSCO-UHFFFAOYSA-N ethene;hydrochloride Chemical group Cl.C=C RAHHITDKGXOSCO-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
本发明涉及一种适于挤出成型的PVC组合料及制备方法，包括改性废矿粉制备、改性废矿粉预混料制备和PVC组合料制备。改性废矿粉由开采花岗岩所产生的尾渣、大理石加工所产生的废料和冶炼过程产生的燃煤粉煤灰构成的混合废矿渣经研磨、过筛和偶联活化处理而成；改性废矿粉预混料由改性废矿粉分别与硬脂酸和石蜡混合制得；PVC组合料由改性废矿粉预混料与PVC树脂、复合稳定剂、增韧剂和CPE在加热条件混合而成。该组合料适用于挤出成型，其PVC塑化均匀、且不易分解，废矿粉与PVC相容性好，无粉尘问题，次品率低；且成型制品强度高、韧性好，具有良好的耐水阻燃性。可替代木塑复合材料广泛应用在建筑、家装领域。The invention relates to a PVC composite material suitable for extrusion molding and a preparation method thereof, comprising the preparation of modified waste mineral powder, the preparation of modified waste mineral powder premix and the preparation of PVC composite material. Modified waste slag is made of mixed waste slag composed of tailings produced by mining granite, waste produced by marble processing and coal-fired fly ash produced in the smelting process, which is processed by grinding, screening and coupling activation; modified The waste mineral powder premix is prepared by mixing the modified waste mineral powder with stearic acid and paraffin respectively; the PVC composite material is made of the modified waste mineral powder premix, PVC resin, composite stabilizer, toughener and CPE after heating Conditions are mixed. The composite material is suitable for extrusion molding. Its PVC plasticizes evenly and is not easy to decompose. The waste mineral powder and PVC have good compatibility, no dust problem, and low defective rate; and the molded products have high strength and good toughness. Water resistance and flame retardancy. It can replace wood-plastic composite materials and is widely used in the fields of construction and home decoration.
Description
技术领域technical field
本发明属于塑料配方领域，特别涉及一种适于挤出成型的PVC组合料及 制备方法。The invention belongs to the field of plastic formulations, in particular to a PVC composite material suitable for extrusion molding and a preparation method.
背景技术Background technique
根据工信部规[2016]225号文件要求，以高值化、规模化、集约化利用为重 点，围绕尾矿、废石、煤矸石、粉煤灰、冶炼渣、冶金尘泥、赤泥、工业副产 石膏、化工废渣等工业固体废物，推广一批先进适用技术装备，推进深度资源 化利用，是未来五年实现工业绿色发展的重要途径。地处秦巴地区的陕西省汉 中市而言，具有丰富的矿产资源，冶炼企业很多，在矿产开发与冶炼、石材加 工过程中会产生大量的尾渣、废料和粉煤灰等，主要成份为SiO2和Al2O3，可 作为填料直接填充改性聚合物(PVC树脂)。但所选废物为无机材料，而PVC树 脂为有机材料，为了提高二者的相容性，必须对废物进行表面偶联活化处理， 虽然可提高PVC的力学性能，降低产品的生产成本，还可减少矿渣对生态环境 的破坏和人类健康的伤害。但是二者在成型加工过程中，流动性差，高温PVC 易分解，而且成型制品的韧性差。同时，PVC挤出成型过程中存在严重的粉尘 问题。According to the requirements of the Ministry of Industry and Information Technology [2016] No. 225 document, focusing on high-value, large-scale and intensive utilization, focusing on tailings, waste rock, coal gangue, fly ash, smelting slag, metallurgical dust, red mud, industrial Industrial solid waste such as by-product gypsum and chemical waste slag, promoting a batch of advanced and applicable technical equipment, and promoting in-depth resource utilization are important ways to achieve industrial green development in the next five years. Hanzhong City, Shaanxi Province, which is located in the Qinba area, has rich mineral resources and many smelting enterprises. During the process of mineral development and smelting, and stone processing, a large amount of tailings, waste and fly ash will be produced. The main components are SiO 2 and Al 2 O 3 can be used as fillers to directly fill modified polymers (PVC resin). But the selected waste is an inorganic material, and PVC resin is an organic material. In order to improve the compatibility between the two, the waste must be subjected to surface coupling activation treatment. Although the mechanical properties of PVC can be improved and the production cost of the product can be reduced, it can also be used. Reduce the damage of slag to the ecological environment and the harm to human health. However, during the molding process, the fluidity of the two is poor, high-temperature PVC is easy to decompose, and the toughness of the molded products is poor. At the same time, there is a serious dust problem in the extrusion molding process of PVC.
发明内容Contents of the invention
为解决现有技术中存在的上述缺陷，本发明的目的在于提供一种适于挤出 成型的PVC组合料及制备方法，解决矿产开发与冶炼、石材加工过程中产生的 尾渣、废料和粉煤灰等回收利用问题，降低这些废物对环境的污染和对人体健 康的伤害。此外，改善PVC塑化问题和粉尘问题，提高成型制品的力学性能， 还赋予制品功能性，增加产品的附加值。In order to solve the above-mentioned defects existing in the prior art, the object of the present invention is to provide a PVC composite material suitable for extrusion molding and a preparation method to solve the problem of tailings, waste materials and pulverized coal produced in the process of mineral development and smelting, and stone processing. Ash and other recycling issues, reducing the pollution of these wastes to the environment and the harm to human health. In addition, it improves the plasticization and dust problems of PVC, improves the mechanical properties of molded products, and endows the products with functionality to increase the added value of the products.
本发明是通过下述技术方案来实现的。The present invention is achieved through the following technical solutions.
一种适于挤出成型的PVC组合料及制备方法，包括下述步骤：A kind of PVC combination material suitable for extrusion molding and preparation method, comprises the following steps:
1)改性废矿粉制备1) Preparation of modified waste mineral powder
1a)将开采花岗岩所产生的尾渣经磁铁粉生产线提取磁铁粉后，经干燥、 破碎、研磨和过筛处理得废矿粉a；将大理石加工所产生的废料经研磨和过 筛处理得废矿粉b；将冶炼过程产生的燃煤粉灰经研磨和过筛处理得废矿粉 c；1a) After extracting the magnet powder from the tailings generated by mining granite through the magnet powder production line, the waste mineral powder a is obtained through drying, crushing, grinding and sieving; ore powder b; waste ore powder c is obtained by grinding and sieving the coal-burning fly ash produced in the smelting process;
1b)将废矿粉a、废矿粉b和废矿粉c按照任意比例低速混合得废矿粉d， 再按照质量比为56.5～68.5％将废矿粉d与1.5～3.5％的铝酸酯偶联剂于一定 温度条件下，搅拌混合，冷却，得改性废矿粉；1b) Mix waste mineral powder a, waste mineral powder b and waste mineral powder c at a low speed in any proportion to obtain waste mineral powder d, and then mix waste mineral powder d with 1.5 to 3.5% aluminate according to a mass ratio of 56.5 to 68.5% The ester coupling agent is stirred and mixed under a certain temperature condition, and cooled to obtain modified waste mineral powder;
2)改性废矿粉预混料制备2) Preparation of modified waste mineral powder premix
将步骤1b)所得改性废矿粉中分别加入0-1％的硬脂酸和1-2％的石蜡， 混合，升温，强力机械搅拌，冷却，得改性废矿粉预混料；Add 0-1% stearic acid and 1-2% paraffin to the modified waste mineral powder obtained in step 1b), mix, heat up, vigorously mechanically stir, and cool to obtain a modified waste mineral powder premix;
3)PVC组合料制备3) Preparation of PVC composite material
将步骤2)所得改性废矿粉预混料分别与20-25％的PVC树脂粉、3-6％ 的复合稳定剂、1-3％的增韧剂和1-3％的氯化聚乙烯(CPE)混合，升温， 强力机械搅拌，冷却，得PVC组合料。The modified waste mineral powder premix obtained in step 2) is respectively mixed with 20-25% of PVC resin powder, 3-6% of composite stabilizer, 1-3% of toughening agent and 1-3% of chlorinated polyvinyl chloride Ethylene (CPE) is mixed, heated up, vigorously mechanically stirred, and cooled to obtain PVC composite material.
所述步骤1a)中，研磨细度为300-400目。In the step 1a), the grinding fineness is 300-400 mesh.
所述步骤1b)中，在70-90℃条件下，500-1000转/min搅拌混合 30-60min，冷却至30-40℃得改性废矿粉。In the step 1b), under the condition of 70-90°C, stir and mix at 500-1000 rpm for 30-60min, and cool to 30-40°C to obtain modified waste mineral powder.
所述步骤2)中，升温至90-100℃，强力机械搅拌1-2h，冷却至30-40℃， 得改性废矿粉预混料。In the step 2), the temperature is raised to 90-100° C., vigorously mechanically stirred for 1-2 hours, and cooled to 30-40° C. to obtain a modified waste mineral powder premix.
所述步骤3)中，升温至130℃-135℃，强力机械搅拌1-2h，冷却至30-40℃，得PVC组合料。In the step 3), the temperature is raised to 130°C-135°C, vigorously mechanically stirred for 1-2h, and cooled to 30-40°C to obtain the PVC composite material.
所述铝酸酯偶联剂为二硬脂酰氧异丙基铝酸酯。The aluminate coupling agent is distearoyloxyisopropyl aluminate.
所述PVC树脂粉为五型PVC树脂，平均聚合度为1010～1050，经干 燥处理，含水率降至0.1％以下。The PVC resin powder is a five-type PVC resin with an average degree of polymerization of 1010-1050, and after drying, the moisture content is reduced to below 0.1%.
所述复合稳定剂为pvc钙锌复合稳定剂。The composite stabilizer is a PVC calcium-zinc composite stabilizer.
所述增韧剂为ACR或EVA一种或两种的混合物。The toughening agent is one or a mixture of ACR or EVA.
相应地，本发明方法制备的适于挤出成型的PVC组合料，包括下述质量 份数的原料：Correspondingly, the PVC composite material that the inventive method prepares is suitable for extrusion molding, comprises the raw material of following mass parts:
按本发明制备PVC组合料适用于挤出成型。在挤出成型过程中，PVC 塑化均匀、且不易分解，废矿粉与PVC相容性好，无粉尘问题，次品率低， 且成型制品强度高、其静曲强度达18.7-19.2MPa、弹性模量大于7300MPa； 韧性好，其抗冲击达4.6-5mm；具有良好的耐水阻燃性，其耐水泡1-3月无 翘曲变形、无霉变现象，阻燃等级为V-0级。可替代木塑复合材料广泛应用 在建筑、家装领域。The PVC composite material prepared according to the invention is suitable for extrusion molding. During the extrusion molding process, PVC plasticizes evenly and is not easy to decompose. The waste mineral powder and PVC have good compatibility, no dust problem, low defective rate, and the molded product has high strength, and its static bending strength reaches 18.7-19.2MPa , elastic modulus greater than 7300MPa; good toughness, its impact resistance up to 4.6-5mm; good water resistance and flame retardancy, no warping deformation, no mildew phenomenon for 1-3 months of blister resistance, and the flame retardant grade is V-0 class. It can replace wood-plastic composite materials and is widely used in the fields of construction and home decoration.
具体实施方式Detailed ways
下面结合实施例对本发明作进一步的详细说明，但并不作为对本发明做任 何限制的依据。Below in conjunction with embodiment the present invention is described in further detail, but not as the basis that the present invention is done any restriction.
本发明的适于挤出成型的PVC组合料及制备方法，包括下述步骤：The PVC composite material suitable for extrusion molding of the present invention and preparation method comprise the following steps:
1)改性废矿粉制备1) Preparation of modified waste mineral powder
1a)将开采花岗岩所产生的尾渣经磁铁粉生产线提取磁铁粉后，经干燥、 破碎、研磨和过筛处理得废矿粉a；将大理石加工所产生的废料经研磨和过 筛处理得废矿粉b；将冶炼过程产生的燃煤粉灰经研磨和过筛处理得废矿粉 c；研磨细度为300-400目；1a) After extracting the magnet powder from the tailings generated by mining granite through the magnet powder production line, the waste mineral powder a is obtained through drying, crushing, grinding and sieving; Mineral powder b; waste ore powder c is obtained by grinding and sieving the coal-burning fly ash produced in the smelting process; the grinding fineness is 300-400 mesh;
1b)将废矿粉a、废矿粉b和废矿粉c按照任意比例低速混合得废矿粉d， 再按照质量比为56.5～68.5％的废矿粉d与1.5～3.5％的铝酸酯偶联剂(为二 硬脂酰氧异丙基铝酸酯)于70-90℃条件下，500-1000转/min搅拌混合 30-60min，冷却至30-40℃得改性废矿粉；1b) Mix waste mineral powder a, waste mineral powder b, and waste mineral powder c at a low speed in any proportion to obtain waste mineral powder d, and then mix waste mineral powder d with 56.5-68.5% of waste mineral powder and 1.5-3.5% aluminate Ester coupling agent (distearyloxy isopropyl aluminate) at 70-90°C, 500-1000 rpm, stirring and mixing for 30-60min, cooling to 30-40°C to obtain modified waste mineral powder ;
2)改性废矿粉预混料制备2) Preparation of modified waste mineral powder premix
将步骤1b)所得改性废矿粉中分别加入0-1％的硬脂酸和1-2％的石蜡， 混合，升温至90-100℃，强力机械搅拌1-2h，冷却至30-40℃，得改性废 矿粉预混料；Add 0-1% stearic acid and 1-2% paraffin to the modified waste mineral powder obtained in step 1b), mix, heat up to 90-100°C, stir vigorously for 1-2h, and cool to 30-40°C ℃, to obtain the modified waste mineral powder premix;
3)PVC组合料制备3) Preparation of PVC composite material
将步骤2)所得改性废矿粉预混料分别与20-25％的PVC树脂粉、3-6％ 的复合稳定剂(为pvc钙锌复合稳定剂)、1-3％的增韧剂(为ACR或EVA) 和1-3％的氯化聚乙烯(CPE)混合，升温至130℃-135℃，强力机械搅拌 1-2h，冷却至30-40℃，得PVC组合料。The modified waste mineral powder premix obtained in step 2) is respectively mixed with 20-25% PVC resin powder, 3-6% composite stabilizer (being pvc calcium-zinc composite stabilizer), 1-3% toughening agent (ACR or EVA) mixed with 1-3% chlorinated polyethylene (CPE), heated to 130°C-135°C, vigorously mechanically stirred for 1-2h, cooled to 30-40°C to obtain PVC composite material.
其中，PVC树脂粉为五型PVC树脂，平均聚合度为1010～1050，经干 燥处理，含水率降至0.1％以下。Among them, the PVC resin powder is a five-type PVC resin, with an average degree of polymerization of 1010-1050, and after drying, the moisture content is reduced to below 0.1%.
下面给出具体实施例来进一步说明本发明。Provide specific examples below to further illustrate the present invention.
实施例1Example 1
按照以下原料配制PVC组合料：Prepare PVC composite materials according to the following raw materials:
具体实施步骤：Specific implementation steps:
1)将废矿粉a、废矿粉b和废矿粉c研磨细度为300目；按照1:1:1比 例低速混合得56.5份废矿粉d，再与3.5份铝酸酯偶联剂二硬脂酰氧异丙基 铝酸酯，于80℃条件下，800转/min搅拌混合30min，冷却至40℃，停止 搅拌得改性废矿粉。1) Grind waste mineral powder a, waste mineral powder b and waste mineral powder c to a fineness of 300 mesh; mix at a low speed according to the ratio of 1:1:1 to obtain 56.5 parts of waste mineral powder d, and then couple with 3.5 parts of aluminate Agent distearoyloxyisopropyl aluminate, under the condition of 80°C, stir and mix at 800 rpm for 30min, cool to 40°C, stop stirring to obtain modified waste mineral powder.
2)将改性废矿粉分别与1份硬脂酸、2份石蜡混合，升温至100℃，强 力机械搅拌1h，冷却至40℃，停止搅拌得改性废矿粉预混料。2) Mix the modified waste mineral powder with 1 part of stearic acid and 2 parts of paraffin wax respectively, raise the temperature to 100°C, stir vigorously for 1 hour, cool to 40°C, stop stirring to obtain the modified waste mineral powder premix.
3)将改性废矿粉预混料分别与25份PVC树脂粉、6份pvc钙锌复合稳 定剂、3份EVA增韧剂和3份CPE混合，升温至130℃，强力机械搅拌1h， 冷却至40℃，停止搅拌得PVC组合料。3) Mix the modified waste mineral powder premix with 25 parts of PVC resin powder, 6 parts of PVC calcium-zinc composite stabilizer, 3 parts of EVA toughening agent and 3 parts of CPE, heat up to 130°C, and stir vigorously for 1 hour. Cool to 40°C, stop stirring to obtain PVC composite material.
实施例2Example 2
按照以下原料配制PVC组合料：Prepare PVC composite materials according to the following raw materials:
具体实施步骤：Specific implementation steps:
1)将废矿粉a、废矿粉b和废矿粉c研磨细度为300目；按照1:1:1比 例低速混合得58.5份废矿粉d，再与1.5份铝酸酯偶联剂，于80℃条件下， 800转/min搅拌混合30min，冷却至40℃，停止搅拌得改性废矿粉。1) Grind waste mineral powder a, waste mineral powder b and waste mineral powder c to a fineness of 300 mesh; mix at a low speed according to the ratio of 1:1:1 to obtain 58.5 parts of waste mineral powder d, and then couple with 1.5 parts of aluminate agent, under the condition of 80°C, stir and mix at 800 rpm for 30min, cool to 40°C, stop stirring to obtain modified waste mineral powder.
2)将改性废矿粉分别与1份石蜡混合，升温至100℃，强力机械搅拌 1h，冷却至40℃，停止搅拌得改性废矿粉预混料。2) Mix the modified waste mineral powder with 1 part of paraffin respectively, raise the temperature to 100°C, stir for 1 hour with strong mechanical force, cool to 40°C, stop stirring to obtain the modified waste mineral powder premix.
3)将改性废矿粉预混料分别与20份PVC树脂粉、3份pvc钙锌复合稳 定剂、3份ACR增韧剂和3份CPE混合，升温至130℃，强力机械搅拌1h， 冷却至40℃，停止搅拌得PVC组合料。3) Mix the modified waste mineral powder premix with 20 parts of PVC resin powder, 3 parts of PVC calcium-zinc composite stabilizer, 3 parts of ACR toughening agent and 3 parts of CPE, heat up to 130°C, and stir vigorously for 1 hour. Cool to 40°C, stop stirring to obtain PVC composite material.
实施例3Example 3
按照以下原料配制PVC组合料：Prepare PVC composite materials according to the following raw materials:
具体实施步骤：Specific implementation steps:
1)将废矿粉a、废矿粉b和废矿粉c研磨细度为300目；按照1:1:1比 例低速混合得67.5份废矿粉d，再与2.5份铝酸酯偶联剂，于80℃条件下， 800转/min搅拌混合30min，冷却至40℃，停止搅拌得改性废矿粉。1) Grind waste mineral powder a, waste mineral powder b and waste mineral powder c to a fineness of 300 mesh; mix at a low speed according to the ratio of 1:1:1 to obtain 67.5 parts of waste mineral powder d, and then couple with 2.5 parts of aluminate agent, under the condition of 80°C, stir and mix at 800 rpm for 30min, cool to 40°C, stop stirring to obtain modified waste mineral powder.
2)将改性废矿粉分别与0.5份硬脂酸、1.5份石蜡混合，升温至100℃， 强力机械搅拌1h，冷却至40℃，停止搅拌得改性废矿粉预混料。2) Mix the modified waste ore powder with 0.5 parts of stearic acid and 1.5 parts of paraffin wax respectively, raise the temperature to 100°C, stir for 1 hour with strong mechanical force, cool to 40°C, stop stirring to obtain the modified waste ore powder premix.
3)将改性废矿粉预混料分别与21.5份PVC树脂粉、3.5份pvc钙锌复 合稳定剂、1.5份EVA增韧剂和1.5份CPE混合，升温至130℃，强力机械 搅拌1h，冷却至40℃，停止搅拌得PVC组合料。3) Mix the modified waste mineral powder premix with 21.5 parts of PVC resin powder, 3.5 parts of PVC calcium-zinc composite stabilizer, 1.5 parts of EVA toughening agent and 1.5 parts of CPE, heat up to 130°C, and stir vigorously for 1 hour. Cool to 40°C, stop stirring to obtain PVC composite material.
制备PVC组合料适用于挤出成型，在挤出成型过程中，除PVC塑化均匀、 不易分解，其成型制品强度高，其静曲强度18.7-19.2MPa、弹性模量大于 7300MPa；韧性好，其抗冲击达4.6-5mm；具有良好的耐水阻燃性，其耐水泡 1-3月无翘曲变形、无霉变现象，阻燃等级为V-0级。因此，该PVC组合料为 一种加工性能良好的适用于挤出成型的PVC组合料。The preparation of PVC composite materials is suitable for extrusion molding. In the extrusion molding process, in addition to the uniform plasticization of PVC and not easy to decompose, the molded products have high strength, with static bending strength of 18.7-19.2MPa and elastic modulus greater than 7300MPa; good toughness, Its impact resistance reaches 4.6-5mm; it has good water resistance and flame retardancy. It can withstand blisters for 1-3 months without warping, deformation, and mildew. The flame retardant grade is V-0. Therefore, this PVC composite material is a PVC composite material suitable for extrusion molding with good processability.
本发明并不局限于上述实施例，在本发明公开的技术方案的基础上，本领 域的技术人员根据所公开的技术内容，不需要创造性的劳动就可以对其中的一 些技术特征作出一些替换和变形，这些替换和变形均在本发明的保护范围内。The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and modifications to some of the technical features according to the disclosed technical content without creative work. Deformation, these replacements and deformations are all within the protection scope of the present invention.
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