CN109824996B - Prefabricated surface layer material for anti-skid impact-resistant PVC plastic track and preparation method thereof - Google Patents
Prefabricated surface layer material for anti-skid impact-resistant PVC plastic track and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a prefabricated surface layer material for an anti-skid and impact-resistant PVC plastic track and a preparation method thereof, wherein the prefabricated surface layer material comprises the following raw materials in parts by weight: 10-30 parts of modified paper-plastic compound material; 100 parts of PVC resin, 2.5-5 parts of stabilizer, 65-90 parts of plasticizer DOTP and 5-10 parts of plasticizer DOA; 7-15 parts of impact modifier; 0.3-3.5 parts of antioxidant; ultraviolet absorbent 0.5-1.5; 2-9 parts of ionomer forming agent; 7-15 parts of a wear-resistant anti-slip agent; 2-7 parts of an expanding agent; 5-12 parts of nano zinc oxide; 0.3-3 parts of silicone powder; 40-90 parts of a filler; 0.5-3.5 parts of pigment. The prefabricated section surface layer material for the PVC plastic track prepared by the invention is green, environment-friendly, comfortable and safe, and simultaneously shows better skid resistance, impact resistance, tensile strength and elongation at break.
Description
Technical Field
The invention relates to a prefabricated section surface layer material for an anti-sliding and impact-resistant PVC plastic track, in particular to a prefabricated section surface layer material which has good anti-sliding and impact-resistant performance, good wear resistance and low-temperature flexibility and excellent mechanical property and a preparation method thereof.
Background
The prior prefabricated surface layer material for the PVC plastic track has more processing methods. For example, the chinese patent application 2018109099006 discloses a wear-resistant, anti-skid, long-life, and environmentally friendly plastic track composition, which comprises the following components in parts by weight: 55-60 parts of PVC paste resin, 35-40 parts of dioctyl phthalate, 3-7 parts of calcium-zinc stabilizer, 5-7 parts of azodicarbonamide, 5-10 parts of anti-skid auxiliary agent and 5-10 parts of aging inhibitor. The preparation process of the runway comprises the following steps: (1) preparing materials; (2) exhausting; (3) coating the pulp; (4) drying; (5) cooling; (6) and (6) packaging. The technology has the advantages of wide raw material source, simple preparation method, no pollution in the production process, stable product quality, simple processing technology, low investment and low use cost. Firstly, the material composition does not contain a proper amount of activation modified materials, such as modifier materials lacking a compatilizer, a coupling agent, an activation compound modifier and the like, so that the dispersibility, the compatibility and the mechanical property of the material are influenced, the material cannot be effectively physically wound with long chains of high polymer materials to form a net structure, and the interface bonding strength, the skid resistance and the wear resistance of the product are reduced. Secondly, the material composition also lacks a proper amount of impact modifier, provides a foaming agent, and the foaming agent plays a role in foaming, and does not have the synergistic action of the impact modifier and the foaming agent, so that the product has better elasticity but poor rebound resilience.
The Chinese patent application 2018101365472 discloses an environment-friendly plastic track and a preparation method thereof, which comprises an elastic bottom layer and a wear-resistant surface layer without particles and self-grained lines; the elastic bottom layer consists of an elastic buffer layer and a reinforced stable layer; the particle-free self-grained wear-resistant surface layer consists of a middle layer and a top layer; wherein: the elastic bottom layer material consists of a component A and a component B; the component A consists of the following raw materials in parts by weight: 30-50 parts of polyether polyol A; 5-20 parts of polyether polyol B; 40-80 parts of filler; 0.5-5 parts of pigment; 0.2-2 parts of a chain extender; 0.1-1 part of antioxidant; 0.1-1 part of ultraviolet absorbent; 0.5-2 parts of catalyst; 0.2-2 parts of rheological additive; the elastic buffer layer is soft and elastic, and can well absorb impact force; the particle-free self-grained wear-resistant surface layer is high in strength, skid-resistant and wear-resistant, and longer in service life. However, the technique has the following disadvantages: the first component and the component B contain a large amount of talcum powder, the talcum powder is an inorganic filler with better flowing property and is not subjected to activation treatment, but the talcum powder has poor dispersibility and compatibility with the composition, so that the talcum powder is aggregated, the surface of the plastic track is smoother, and the anti-sliding property is poor. Secondly, the elastic bottom layer material consists of a component A and a component B, the material composition does not contain a proper amount of modifier materials such as compatilizers, coupling agents and activating compound modifiers, and the dispersibility of the materials and the mechanical properties of the product can be influenced, particularly, the elastic bottom layer material consists of the component A and the component B, and the two components, and the compatibility of the materials and the interfacial bonding strength of the product can be influenced due to the lack of a proper amount of modifier materials such as the compatilizers, the coupling agents and the activating compound modifiers, so that the wear resistance, the impact resistance, the tensile strength and the elongation at break of the product are not high, and the overall comprehensive performance needs to be improved.
Disclosure of Invention
The invention aims to provide a prefabricated surface layer material for an anti-sliding and impact-resistant PVC plastic track and a preparation method thereof, aiming at the defects of the prior art, wherein the prefabricated surface layer material has high anti-sliding performance, high impact resistance, high strength and excellent comprehensive performance.
The purpose of the invention is realized by the following technical scheme:
the prefabricated section surface layer material for the anti-sliding impact-resistant PVC plastic track comprises the following raw materials in parts by weight: 10-30 parts of modified paper-plastic compound material; 100 parts of PVC resin, 2.5-5 parts of stabilizer, 65-90 parts of plasticizer DOTP and 5-10 parts of plasticizer DOA; 7-15 parts of impact modifier; 0.3-3.5 parts of antioxidant; ultraviolet absorbent 0.5-1.5; 2-9 parts of ionomer forming agent; 7-15 parts of a wear-resistant anti-slip agent; 2-7 parts of an expanding agent; 5-12 parts of nano zinc oxide; 0.3-3 parts of silicone powder; 40-90 parts of a filler; 0.5-3.5 parts of pigment;
the raw materials of the modified paper-plastic compound ingredient comprise, by weight, 5-15 parts of fly ash, 50-80 parts of calcium carbonate, 5-25 parts of paper-plastic compound grinding powder and 2-5 parts of coupling agent; during preparation, the fly ash and the calcium carbonate are added into a high-speed mixer for uniform stirring, the stirring temperature is raised to 75-90 ℃ to form a uniform mixture, then the paper-plastic composite grinding powder and the silane coupling agent are added, the stirring is continued until the temperature is raised to 110-120 ℃, the stirring time is controlled to 8-10 minutes, the material is discharged, the cold mixing is carried out, the material is discharged when the cold mixing temperature is controlled to 40-50 ℃, and the modified paper-plastic composite ingredient is obtained;
the paper-plastic composite grinding powder is a paper-plastic waste bag formed by compounding a polypropylene woven bag and paper, and is crushed, extruded and ground into paper-plastic composite grinding powder;
the wear-resistant anti-slip agent is one or more of ethylene-n-butyl acrylate-glycidol (E/NBA/GMA) HP661, ethylene-vinyl acetate-carbonyl (E/VA/CO)741 and ethylene-n-butyl acrylate-carbonyl (E/NBA/CO)742 copolymer;
the swelling agent is one or more of a swelling agent JH-205 type, a swelling agent DF-102 type and a swelling agent DF-100 type;
the ionomer forming agent is one or more of ionomer forming agent WY-55, ionomer forming agent WY-68 and ionomer forming agent B-02A;
the coupling agent is one or more of silane coupling agent (KH-570), titanate coupling agent NXH-102 and aluminate coupling agent NXH-821;
the filler is one or more of fly ash, white carbon black, light activated calcium carbonate and superfine calcium carbonate.
In order to further achieve the purpose of the invention, the mass ratio of the fly ash, the light calcium carbonate, the paper-plastic composite grinding powder material and the silane coupling agent is preferably 10:70:20: 2.5.
Preferably, the polyvinyl chloride resin is SG-5 type, the apparent density is more than or equal to 0.4g/ml, and the viscosity number is 108-119 ml/g.
Preferably, the stabilizer is one or more of calcium zinc composite stabilizer KCZ-58, barium zinc composite stabilizer BZ-80A or rare earth composite stabilizer XT-2.
Preferably, the impact modifier is one or more of a lightly chlorinated HDPE and an acrylate graft copolymer ACM-P1, a methyl methacrylate-butadiene-styrene copolymer TP-801 or an ethylene-vinyl acetate copolymer EV 260; the nano zinc oxide is one or more of CY-JH05 type nano zinc oxide, CY-J200 type nano zinc oxide and CY-J10 type nano zinc oxide, and the particle size is 15-20 nanometers.
Preferably, the silicone powder is one or more of silicone powder SK20R type, silicone powder SL-100 type and silicone powder KJ-B01.
Preferably, the antioxidant is 1010 type, antioxidant 168, antioxidant 1076; the ultraviolet absorbent is UV-531 type, and the ultraviolet absorbent is one or more of UV-9 and UV-327; the pigment is one or more of iron oxide red, iron oxide green, chromium oxide, ultramarine and phthalocyanine blue; the particle diameter of the fly ash is 20-50 nanometers, and the apparent density is 1.07-2.1g/cm 3; the calcium carbonate is activated nano calcium carbonate, and the particle size is 15-50 nm; the white carbon black has the white carbon black content of 98.5-99.7% and the particle size of 7-15 nanometers.
Preferably, the water content of the modified paper-plastic compound ingredient is less than 0.9 percent, and the melt index is 5-15g/10 min; the particle size of the paper-plastic composite grinding powder is 60-120 meshes.
The preparation method of the prefabricated profile layer material for the anti-skid and impact-resistant PVC plastic track comprises the following steps: adding modified paper-plastic compound materials, PVC resin, a stabilizer, a plasticizer DOTP, a plasticizer DOA, an impact modifier, an antioxidant, an ultraviolet absorbent, an ionomer forming agent, an abrasion-resistant anti-slip agent, an expanding agent, nano zinc oxide, silicone powder, calcium carbonate and pigment into a high-speed mixer, carrying out hot mixing for 8-10 minutes, discharging the materials into a cold mixer when the temperature reaches 110-120 ℃, carrying out cold mixing until the temperature reaches 40-50 ℃, and discharging the materials to obtain dry-mixed clinker; and adding the dry-mixed clinker into a double-screw extruder, and extruding, cooling and granulating to prepare the prefabricated surface layer material for the PVC plastic track.
Preferably, the body temperature of the twin-screw extruder during extrusion is 155-175 ℃, the temperature of the heated and melted material passing through the molding machine head is controlled to be 158-185 ℃, the screw rotation speed is 140-185r/min, the vacuum degree is-0.07 MPa, and the traction speed is 110-150 m/min.
The paper-plastic composite grinding powder can utilize wood fibers contained in the paper-plastic composite grinding powder, provides special impact resistance, and more importantly provides better flexibility, and the particle size of the paper-plastic composite grinding powder is 60-120 meshes. The water content of the modified paper-plastic compound ingredient is less than 0.9 percent, and the melt index is 5-15g/10 min.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1) two different groups exist in the molecule of the modified paper-plastic compound material; a group that can react with a surface chemical group of an inorganic substance to form a strong chemical bond; that is, hydroxyl is formed with trace moisture on the surface of the powder to carry out chemical reaction or physical adsorption with a coupling agent to form a strong chemical bond. The other part of the groups can have good compatibility with organic polymer materials and can be physically wound with long chains of the polymer materials. The invention combines two materials with different properties firmly, in particular to the interface connection of inorganic materials and high molecular materials to form a net structure, increases the bonding force between the inorganic materials and the high molecular materials, and plays a role in improving the compatibility and the interface bonding strength of the materials, thereby improving the wear resistance, the skid resistance, the tensile strength and the elongation at break of the product and having excellent overall comprehensive performance of the product.
2) The modified paper-plastic compound ingredient contains more paper-plastic compound grinding powder, can increase the surface roughness of a product, utilizes the technical characteristics, and is used for modifying a prefabricated surface layer material for a PVC plastic track, so that the anti-skid and wear-resistant properties of the product can be obviously improved. The test result also shows that the modified paper-plastic compound ingredient in the components of the prefabricated section surface layer material for the PVC plastic track plays an important role in improving various performance indexes of the material.
3) The prefabricated section surface layer material for the PVC plastic track prepared by the invention is green, environment-friendly, comfortable and safe, and simultaneously shows better skid resistance, wear resistance, tensile strength and elongation at break.
4) The plasticizer of the invention combines the diclofop-Diacid (DOTP) and the diclofop-adipate (DOA), can reduce the viscosity and the surface hardness of a melt, increase the flexibility and improve the impact property. The impact modifier can improve low-temperature flexibility, and improve impact resistance and rebound resilience. The ionomer forming agent has good cooperation and synergism with materials, and can improve the processability of the materials and the weather resistance of products. The wear-resistant anti-slip agent can improve the low-temperature flexibility and effectively solve the problems of skid resistance and wear resistance of the product.
5) The expanding agent of the invention is composed of a polymer shell and gas wrapped by the polymer shell, independent foaming can reach 30-50 times of the original foaming, and the flexibility and the impact property of the product can be improved. The silicone powder is polysiloxane, and can improve the processing performance of materials and reduce the friction coefficient. The nano zinc oxide is prepared by crystal lattice titanizing, and has special effects of effectively sterilizing, preventing mildew, resisting ultraviolet rays and the like. The filler is capable of stabilizing the product size.
Detailed Description
For better understanding of the present invention, the present invention is further described below with reference to examples, which should not be construed as limiting the scope of the present invention.
Example 1
The modified paper-plastic compound ingredient comprises the following raw materials in parts by weight: 10 parts of fly ash, 50 parts of light nano calcium carbonate, 25 parts of paper-plastic composite grinding powder and 2.5 parts of silane coupling agent (KH-570). Adding the fly ash and the calcium carbonate into a high-speed mixer, uniformly stirring, raising the stirring temperature to 75 ℃ to form a uniform mixture, then adding the paper-plastic composite grinding powder and the silane coupling agent, continuously stirring, controlling the stirring time to be 10 minutes when the temperature is raised to 110 ℃, discharging, transferring to cold mixing, discharging when the cold mixing temperature is controlled to be 45 ℃, and obtaining the modified paper-plastic composite ingredient.
A prefabricated section surface layer material for a PVC plastic track comprises the following components in parts by weight: 100 parts of PVC resin (SJ-5), 2.7 parts of calcium-zinc composite stabilizer (KCZ-58), 70 parts of plasticizer (DOTP) and 5 parts of plasticizer (DOA); 9 parts of impact modifier ACM-P1 (HDPE with light chlorine and acrylate graft copolymer); 0.5 part of antioxidant (1010); 0.7 part of ultraviolet absorber (UV-531); 2.5 parts of ionomer forming agent WY-68 (acrylic acid-methyl methacrylate-butyl acrylate copolymer); 8 parts of wear-resistant anti-slip agent HP661 (ethylene-n-butyl acrylate-carbonyl); 5 parts of a swelling agent (JH-205); 5 parts of nano zinc oxide (CY-JH 05); 0.3 part of silicone powder (SK 20R); 60 parts of light nano calcium carbonate; 0.7 part of iron green; modified paper-plastic compound 10.
The modified paper plastic compound ingredient is activated (silane coupling agent (KH-570)) modified paper plastic compound ingredient.
A preparation method of a prefabricated surface layer material for a PVC plastic track comprises the following steps: compounding 10 modified paper with plastic; 100 parts of PVC resin (SJ-5), 2.7 parts of calcium-zinc composite stabilizer (KCZ-58), 70 parts of plasticizer (DOTP) and 5 parts of plasticizer (DOA); 9 parts of impact modifier ACM-P1 (HDPE with light chlorine and acrylate graft copolymer); 0.5 part of antioxidant (1010); 0.7 part of ultraviolet absorber (UV-531); 2.5 parts of ionomer forming agent WY-68 (acrylic acid-methyl methacrylate-butyl acrylate copolymer); 8 parts of wear-resistant anti-slip agent HP661 (ethylene-n-butyl acrylate-carbonyl); 5 parts of a swelling agent (JH-205); 5 parts of nano zinc oxide (CY-JH 05); 0.3 part of silicone powder (SK 20R); 60 parts of light nano calcium carbonate; 0.7 part of iron green. After metering, adding the mixture into a high-speed mixer, carrying out hot mixing for about 8-10 minutes, discharging the mixture into a cold mixer when the temperature reaches 110-120 ℃, carrying out cold mixing until the temperature reaches 40-45 ℃, and discharging the mixture to obtain dry-mixed clinker. And then adding the dry-mixed clinker into a double-screw extruder, wherein the temperature of the extruder body is 155-165 ℃, the temperature of the heated and melted material is 158-175 ℃ through a molding machine head, the rotating speed of a screw is 140-175r/min, the vacuum is-0.07 MPa, and the traction speed is 110-150 m/min. The prefabricated surface layer material for the PVC plastic track is prepared by extrusion, cooling and grain cutting. Then, tabletting is carried out; weighing the material amount of the prefabricated surface layer material for the prepared PVC plastic track, putting the material into a die according to the required size of the die, putting the die on an inner platform of an automatic tablet press, and closing a safety door. Adjusting the temperature of the upper mold to 170 ℃, the temperature of the lower mold to 170 ℃, preheating for 3.5-4.5 minutes, preheating pressure of 12MPa, pressure maintaining pressure of 135MPa, pressure maintaining time of 5min and cooling time of 3-4 min. Taking a tablet for testing.
Example 2
The modified paper-plastic compound ingredient comprises the following raw materials in parts by weight: 15 parts of fly ash, 60 parts of light nano calcium carbonate, 20 parts of paper-plastic composite grinding powder and 3 parts of aluminate coupling agent (NXH-821). During preparation, the fly ash and the light nano calcium carbonate are added into a high-speed mixer for uniform stirring, the stirring temperature is raised to 80 ℃ to form a uniform mixture, then the paper-plastic composite grinding powder and the silane coupling agent are added, the mixture is continuously stirred, when the temperature is raised to 115 ℃, the discharge is carried out for 12 minutes, the cold mixing is carried out, the discharge is carried out, and the discharge is carried out when the cold mixing temperature is controlled to be 45 ℃, so that the modified paper-plastic composite ingredient is obtained.
A prefabricated profile layer material for an anti-skid and impact-resistant PVC plastic track comprises the following components in parts by weight: 100 parts of PVC resin (SJ-5), 3.2 parts of calcium-zinc composite stabilizer (KCZ-58), 80 parts of plasticizer (DOTP) and 5 parts of plasticizer (DOA); 9.5 parts of an impact modifier TP-801 (methyl methacrylate-butadiene-styrene copolymer); 10 parts of wear-resistant anti-slip HP661 (ethylene-n-butyl acrylate-glycidol E/NBA/GMA); 0.8 part of antioxidant (168); ultraviolet absorption (UV-531)0.9 part; 3 parts of ionomer forming agent (WY-55); antiwear and antisliding agent 742 ethylene-n-butyl acrylate-carbonyl (E/NBA/CO)9 parts; 8 parts of a swelling agent (JH-205); 6 parts of nano zinc oxide (CY-JH 05); 0.7 part of silicone powder (SL-100); 5 parts of white carbon black; 70 parts of light nano calcium carbonate; 0.9 part of phthalocyanine blue. 15 parts of modified paper-plastic compound ingredients. The modified paper-plastic compound ingredient is activated (aluminate coupling agent NXH-821, Nanjing Xuanyao new material science and technology Co., Ltd.).
A preparation method of a prefabricated profile layer material for an anti-skid and impact-resistant PVC plastic track; 15 parts of modified paper-plastic compound ingredient, 100 parts of PVC resin (SJ-5), 3.2 parts of calcium-zinc composite stabilizer (KCZ-58), 80 parts of plasticizer (DOTP) and 5 parts of plasticizer (DOA); 9.5 parts of an impact modifier TP-801 (methyl methacrylate-butadiene-styrene copolymer); 10 parts of wear-resistant anti-slip agent HP661 (ethylene-n-butyl acrylate-glycidyl E/NBA/GMA); 0.8 part of antioxidant (168); 0.9 part of ultraviolet absorber (UV-531); 3 parts of ionomer forming agent (WY-55); antiwear and antisliding agent 742 ethylene-n-butyl acrylate-carbonyl (E/NBA/CO)9 parts; 8 parts of a swelling agent (JH-205); 6 parts of nano zinc oxide (CY-JH 05); 0.7 part of silicone powder (SL-100); 5 parts of white carbon black; 70 parts of light nano calcium carbonate; 0.9 part of phthalocyanine blue. After metering, adding the mixture into a high-speed mixer, carrying out hot mixing for about 8-12 minutes, discharging the mixture into a cold mixer when the temperature reaches 110-120 ℃, carrying out cold mixing until the temperature reaches 45-50 ℃, and discharging the mixture to obtain dry-mixed clinker. And then adding the dry-mixed clinker into a double-screw extruder, wherein the temperature of the extruder body is 160-175 ℃, the temperature of the heated and melted material is 168-180 ℃, the rotating speed of a screw is 140-170r/min, the vacuum is-0.075 MPa, and the traction speed is 110-160 m/min. The prefabricated surface layer material for the PVC plastic track is prepared by extrusion, cooling and grain cutting. Then, carrying out a flaking test; weighing the material amount of the prefabricated surface layer material for the prepared PVC plastic track, putting the material into a die according to the required size of the die, putting the die on an inner platform of an automatic tablet press, and closing a safety door. Adjusting the temperature of the upper mold to 176 ℃, the temperature of the lower mold to 176 ℃, preheating for 3.5-6 minutes, preheating pressure of 12.5MPa, holding pressure of 137MPa, holding time of 6min, and cooling time of 3-6 min. Taking a tablet for testing.
Example 3
The modified paper-plastic compound ingredient comprises the following raw material components: 20 parts of fly ash and 70 parts of superfine heavy calcium carbonate; 15 parts of paper-plastic composite grinding powder and 3.5 parts of silane coupling agent (KH-570). During preparation, the fly ash and the light nano calcium carbonate are added into a high-speed mixer for uniform stirring, the stirring temperature is raised to 85 ℃ to form a uniform mixture, then the paper-plastic composite grinding powder and the silane coupling agent are added, the mixture is continuously stirred, when the temperature is raised to 125 ℃, the discharge is carried out for 12 minutes, the cold mixing is carried out, the discharge is carried out, and the discharge is carried out when the cold mixing temperature is controlled to be 45 ℃, so that the modified paper-plastic composite ingredient is obtained.
A prefabricated section surface layer material for an anti-skid and impact-resistant PVC plastic track comprises the following components in parts by weight: 100 parts of PVC resin (SJ-5), 3.2 parts of calcium-zinc composite stabilizer, 75 parts of plasticizer (DOTP) and 5.5 parts of plasticizer (DOA); 10 parts of impact modifier (HDPE with light chlorine and acrylate graft copolymer); 0.5 part of antioxidant (1010); 0.9 part of ultraviolet absorber (UV-531); 3 parts of ionomer forming agent WY-68 (acrylic acid-methyl methacrylate-butyl acrylate copolymer); 11 parts of an abrasion-resistant anti-slip agent (ethylene-n-butyl acrylate-carbonyl); 7 parts of a swelling agent (JH-205); 7 parts of nano zinc oxide (CY-JH 05); 0.5 part of silicone powder (SL-100); 75 parts of light nano calcium carbonate; 1.0 part of iron green. 20 parts of modified paper-plastic compound ingredients; the modified paper-plastic compound ingredient is activated (silane coupling agent (KH-570)) modified paper-plastic compound ingredient.
A preparation method of a prefabricated profile layer material for an anti-skid and impact-resistant PVC plastic track comprises the following steps: 20 parts of modified paper-plastic compound ingredients; 100 parts of PVC resin (SJ-5), 3.2 parts of calcium-zinc composite stabilizer, 75 parts of plasticizer (DOTP) and 5.5 parts of plasticizer (DOA); 10 parts of impact modifier (HDPE with light chlorine and acrylate graft copolymer); 0.5 part of antioxidant (1010); 0.9 part of ultraviolet absorber (UV-531); ionomer forming agent WY-68 (3 parts of acrylic acid-methyl methacrylate-butyl acrylate copolymer, 11 parts of wear-resistant anti-slip agent (ethylene-n-butyl acrylate-carbonyl), 7 parts of expanding agent (JH-205), 7 parts of nano zinc oxide (CY-JH05), 0.5 part of silicone powder (SL-100), 75 parts of light nano calcium carbonate and 1.0 part of iron green, wherein the components are metered and added into a high-speed mixer, the hot mixing time is about 8-12 minutes, when the temperature reaches 110-125 ℃, the materials are discharged into a cold mixer and cooled and mixed until the temperature reaches 45 ℃, the materials are discharged to obtain dry-mixed clinker, then the dry-mixed clinker is added into a double-screw extruder, the temperature of the machine body is 160-180 ℃, the heated and molten materials pass through a forming machine head at 168-175 ℃, the screw rotating speed is 140-185r/min, and the vacuum is-0.08 MPa, the drawing speed is 110-165 m/min. The prefabricated surface layer material for the PVC plastic track is prepared by extrusion, cooling and grain cutting. Then, carrying out a flaking test; weighing the material amount of the prefabricated surface layer material for the prepared PVC plastic track, putting the material into a die according to the required size of the die, putting the die on an inner platform of an automatic tablet press, and closing a safety door. Adjusting the temperature of the upper mold to 175 ℃, the temperature of the lower mold to 175 ℃, preheating for 3.5-5 minutes, preheating pressure of 12MPa, holding pressure of 137MPa, holding time of 5min, and cooling time of 3-6 min. Taking a tablet for testing.
Example 4
The modified paper-plastic compound ingredient comprises the following raw material components: 20 parts of fly ash and 75 parts of superfine heavy calcium carbonate; 10 parts of paper-plastic composite grinding powder and 4 parts of titanate coupling agent (NXH-102). During preparation, the fly ash and the light nano calcium carbonate are added into a high-speed mixer for uniform stirring, the stirring temperature is raised to 90 ℃ to form a uniform mixture, then the paper-plastic composite grinding powder and the silane coupling agent are added, the mixture is continuously stirred, when the temperature is raised to 125 ℃, the discharge is carried out for 13 minutes, the cold mixing is carried out, the discharge is carried out when the cold mixing temperature is controlled at 45 ℃, and the modified paper-plastic composite ingredient is obtained,
a prefabricated section surface layer material for an anti-skid and impact-resistant PVC plastic track comprises the following components in parts by weight: 100 parts of PVC resin (SJ-5), 3.8 parts of barium-zinc composite stabilizer (BZ-80A), 80 parts of plasticizer (DOTP) and 6 parts of plasticizer (DOA); 11 parts of an impact modifier TP-801 (methyl methacrylate-butadiene-styrene copolymer); 1.2 parts of antioxidant (168); 0.9 part of ultraviolet absorbent (UV-9); 6 parts of ionomer forming agent WY-68 (acrylic acid-methyl methacrylate-butyl acrylate copolymer); 12 parts of wear-resistant anti-slip agent 741 (ethylene-vinyl acetate-carbonyl E/VA/CO); 7 parts of a bulking agent (DF-102); 7 parts of nano zinc oxide (CY-J200); 1.2 parts of silicone powder (SL-100); 85 parts of light nano calcium carbonate; 1.7 parts of ultramarine and 25 parts of modified paper-plastic compound ingredient; the modified paper-plastic compound ingredient is activated (titanate coupling (NXH-102)) modified paper-plastic compound ingredient.
A preparation method of a prefabricated profile layer material for an anti-skid and impact-resistant PVC plastic track comprises the following steps: 25 parts of modified paper-plastic compound material; 100 parts of PVC resin (SJ-5), 3.8 parts of barium-zinc composite stabilizer (BZ-80A), 80 parts of plasticizer (DOTP) and 6 parts of plasticizer (DOA); 11 parts of an impact modifier TP-801 (methyl methacrylate-butadiene-styrene copolymer); 1.2 parts of antioxidant (168); 0.9 part of ultraviolet absorbent (UV-9); 6 parts of ionomer forming agent WY-68 (acrylic acid-methyl methacrylate-butyl acrylate copolymer); 12 parts of wear-resistant anti-slip agent 741 (ethylene-vinyl acetate-carbonyl E/VA/CO); 7 parts of a bulking agent (DF-102); 7 parts of nano zinc oxide (CY-J200); 1.2 parts of silicone powder (SL-100); 85 parts of light nano calcium carbonate; and ultramarine 1.7 parts. After metering, adding the mixture into a high-speed mixer, carrying out hot mixing for about 10-15 minutes, discharging the mixture into a cold mixer when the temperature reaches 110-130 ℃, carrying out cold mixing until the temperature reaches 50 ℃, and discharging the mixture to obtain dry-mixed clinker. And then adding the dry-mixed clinker into a double-screw extruder, wherein the temperature of the extruder body is 165-182 ℃, the temperature of the heated and melted material is 160-180 ℃, the rotating speed of a screw is 140-178r/min, the vacuum is-0.08 MPa, and the traction speed is 110-170 m/min. The prefabricated surface layer material for the PVC plastic track is prepared by extrusion, cooling and grain cutting. Then, carrying out a flaking test; weighing the material amount of the prefabricated surface layer material for the prepared PVC plastic track, putting the material into a die according to the required size of the die, putting the die on an inner platform of an automatic tablet press, and closing a safety door. Adjusting the temperature of the upper mold to 175 ℃, the temperature of the lower mold to 175 ℃, preheating for 3-6 minutes, preheating pressure of 12MPa, holding pressure of 137MPa, holding pressure of 6min, and cooling for 3-6 min. Taking a tablet for testing.
Example 5
The modified paper-plastic compound ingredient comprises the following raw material components: 25 parts of fly ash, 90 parts of light nano calcium carbonate, 5 parts of paper-plastic composite grinding powder and 4.5 parts of silane coupling agent (KH-570). During preparation, the fly ash and the light nano calcium carbonate are added into a high-speed mixer for uniform stirring, the stirring temperature is raised to 95 ℃ to form a uniform mixture, then the paper-plastic composite grinding powder and the silane coupling agent are added, the mixture is continuously stirred, when the temperature is raised to 130 ℃, the discharge is carried out for 15 minutes, the discharge is transferred into cold mixing, and the discharge is carried out when the cold mixing temperature is controlled to be 45 ℃, so that the modified paper-plastic composite ingredient is obtained.
A prefabricated section surface layer material for an anti-skid and impact-resistant PVC plastic track comprises the following components in parts by weight: 100 parts of PVC resin (SJ-5), 4.5 parts of rare earth composite stabilizer (XT-2), 90 parts of plasticizer (DOTP) and 6 parts of plasticizer (DOA); impact modifier EV260 (ethylene-vinyl acetate copolymer) 5; 7 parts of impact modifier ACM-P1 (HDPE with light chlorine and acrylate graft copolymer); 1.2 parts of antioxidant (1076); 1.0 part of ultraviolet absorbent (UV-327); 6 parts of ionomer forming agent (B-02A); 12 parts of an antiwear and antiskid agent 742 (ethylene-n-butyl acrylate-carbonyl E/NBA/CO); 9 parts of a bulking agent (DF-100); 7 parts of nano zinc oxide (CY-J10); 1.2 parts of silicone powder (SL-100); 90 parts of superfine heavy calcium carbonate; 1.5 parts of phthalocyanine blue; 10 parts of modified paper-plastic compound ingredients. The modified paper-plastic compound ingredient is activated (silane coupling agent (KH-570)) modified paper-plastic compound ingredient.
A preparation method of a prefabricated profile layer material for an anti-skid and impact-resistant PVC plastic track comprises the following steps: 10 parts of modified paper-plastic compound ingredients; 100 parts of PVC resin (SJ-5), 4 parts of rare earth composite stabilizer (XT-2), 90 parts of plasticizer (DOTP) and 6 parts of plasticizer (DOA); impact modifier EV260 (ethylene-vinyl acetate copolymer) 5; 7 parts of impact modifier ACM-P1 (HDPE with light chlorine and acrylate graft copolymer); 1.2 parts of antioxidant (1076); 1.0 part of ultraviolet absorbent (UV-327); 6 parts of ionomer forming agent (B-02A); 12 parts of an antiwear and antiskid agent 742 (ethylene-n-butyl acrylate-carbonyl E/NBA/CO); 9 parts of a bulking agent (DF-100); 7 parts of nano zinc oxide (CY-J10); 1.2 parts of silicone powder (SL-100); 90 parts of superfine heavy calcium carbonate; 1.5 parts of phthalocyanine blue. After metering, adding the mixture into a high-speed mixer, carrying out hot mixing for about 10-15 minutes, discharging the mixture into a cold mixer when the temperature reaches 110-135 ℃, carrying out cold mixing until the temperature reaches 50 ℃, and discharging the mixture to obtain dry-mixed clinker. And then adding the dry-mixed clinker into a double-screw extruder, wherein the temperature of the extruder body is 165-175 ℃, the temperature of the heated and melted material is 160-170 ℃, the rotating speed of a screw is 140-185r/min, the vacuum is-0.085 MPa, and the traction speed is 110-175 m/min. The prefabricated surface layer material for the PVC plastic track is prepared by extrusion, cooling and grain cutting. Then, carrying out a flaking test; weighing the material amount of the prefabricated surface layer material for the prepared PVC plastic track, putting the material into a die according to the required size of the die, putting the die on an inner platform of an automatic tablet press, and closing a safety door. Adjusting the temperature of the upper mold to 175 ℃, the temperature of the lower mold to 175 ℃, preheating for 3-5 minutes, preheating pressure of 12MPa, holding pressure of 135MPa, holding pressure time of 5min, and cooling time of 3-6 min. Taking a tablet for testing.
Comparative example 1
The modified paper-plastic composite formulation of example 1 was replaced with 5 parts of impact modifier (lightly chlorinated HDPE and acrylate graft copolymer ACM-P1) and the conditions were otherwise unchanged.
Comparative example 2
The modified paper-plastic composite formulation of example 1 was replaced with 20 parts of an impact modifier (lightly chlorinated HDPE and acrylate graft copolymer ACM-P1) and the conditions were otherwise unchanged.
Comparative example 3
The modified paper-plastic compound in example 1 was replaced with 5 parts of an anti-wear anti-slip agent (DuPont, USA) ethylene-n-butyl acrylate-glycidol (E/NBA/GMA) HP661, and the other conditions were not changed.
Comparative example 4
The modified paper-plastic compound in example 1 was replaced with 20 parts of an anti-wear anti-slip agent (DuPont, USA) ethylene-n-butyl acrylate-glycidol (E/NBA/GMA) HP661 parts, and the other conditions were unchanged.
Comparative example 5
The parts of the modified paper-plastic compound ingredients in the example 1 are adjusted to 5 parts, and other conditions are not changed.
Comparative example 6
The parts of the modified paper-plastic compound ingredients in the example 1 are adjusted to 35 parts, and other conditions are not changed.
The prefabricated section surface layer materials for the anti-skid and impact-resistant PVC plastic track obtained in each embodiment and comparative example are detected according to the GB 36246-2018 standard, the thickness of the sample is 13mm, and the performance parameter test results are shown in Table 1.
TABLE 1 table of the test conditions of the performance parameters of the materials obtained in the examples
From the performance test results of the prefabricated section surface layer materials for the PVC plastic track prepared in the above embodiments, it can be seen that the mechanical properties of the prefabricated section surface layer materials for the PVC plastic track in embodiments 1 to 5 are significantly improved compared to the conventional PVC plastic track, and the modified paper-plastic compound material exerts its own performance advantages and is effectively utilized.
As can be seen from comparative examples 1-2, if the amount of the impact modifier (HDPE with slight chlorine and acrylate graft copolymer ACM-P1) added in the present application is changed, the mechanical properties of the product are greatly influenced; although only the modified paper-plastic compound added in example 1 is replaced by the impact modifier, the mechanical properties of the replaced impact modifier in the prefabricated surface layer material for the PVC plastic track are changed, but the mechanical properties are finally reduced, which may be that the activity of the modified paper-plastic compound is lacked to modify the prefabricated surface layer material for the PVC plastic track, the dispersibility of the material is poor, and the inorganic material and the high molecular material in the components are not connected together at the interface to form a network structure, thereby affecting the compatibility and the interface bonding strength of the material.
From comparative examples 3 to 4, it can be seen that if the amount of the anti-wear anti-slip agent (ethylene-n-butyl acrylate-glycidol (E/NBA/GMA) HP661) added in the present application is changed, the anti-slip and anti-wear properties of the product are greatly affected; although the modified paper-plastic compound added in example 1 is replaced by the wear-resistant anti-slip agent (ethylene-n-butyl acrylate-glycidol (E/NBA/GMA) HP661), the anti-slip and weather-resistant properties of the material are reduced, and although the mechanical properties of the replaced wear-resistant anti-slip agent are changed in the prefabricated surface layer material for the PVC plastic runway, the mechanical properties are reduced finally, which may be that the modified paper-plastic compound lacks the activity of the modified paper-plastic compound to modify the prefabricated surface layer material for the PVC plastic runway, and the wear-resistant anti-slip agent has a poor dispersibility with the prefabricated surface layer material for the PVC plastic runway, and is easy to agglomerate. That is, the interface of the inorganic material and the high molecular material must be connected through the activation of the coupling agent to form a network structure, and the bonding force between the inorganic material and the high molecular material is increased, so that the impact resistance and the wear resistance of the product are improved.
Regarding that the addition amount of the modified paper-plastic compound ingredient has a great influence on the performance of the final modified paper-plastic compound ingredient, it can be seen from comparative examples 5 and 6 in the above table that although the addition amount of the modified paper-plastic compound ingredient is within the range defined by the invention, the mechanical property of the final product is greatly influenced by the addition amount outside the range defined by the invention, and the poor plasticization phenomenon of the prefabricated surface layer material for the PVC plastic track can be caused due to the addition amount of the modified paper-plastic compound ingredient, which may be related to the compatibility of the formula system of the prefabricated surface layer material for the PVC plastic track. Affecting the surface wear resistance of the product. In addition, excessive modified paper-plastic compound materials are added, so that the plasticization of the materials is advanced, the dispersibility is poor, and the plasticization of the materials and the mechanical properties of the product are influenced. This may be due to excessive addition of the modified paper compound furnish which leads to premature plasticization of the material under the dual action of heat and shear. The modified paper-plastic compound ingredient added in the invention can be completely fused with the prefabricated surface layer material for the PVC plastic track, has good compatibility, achieves material plasticizing balance, plays an important role in improving various performance indexes of the material, is green and environment-friendly, and meets the requirement of practical application.
It should be noted that, for those skilled in the art, various modifications and changes can be made without departing from the technical principle of the present invention, and these modifications and changes should be also considered as the protection scope of the present invention.
Claims (9)
1. The prefabricated section surface layer material for the anti-sliding impact-resistant PVC plastic track is characterized by comprising the following raw materials in parts by weight: 10-20 parts of modified paper-plastic compound material; 100 parts of PVC resin, 2.7-4 parts of stabilizer, 70-90 parts of plasticizer DOTP and 5-10 parts of plasticizer DOA; 9-12 parts of impact modifier; 0.5-1.2 parts of antioxidant; 0.7-1 part of ultraviolet absorbent; 2.5-6 parts of ionomer forming agent; 8-12 parts of a wear-resistant anti-slip agent; 5-7 parts of an expanding agent; 5-7 parts of nano zinc oxide; 0.3-1.2 parts of silicone powder; 60-90 parts of a filler; 0.7-1.7 parts of pigment;
the raw materials of the modified paper-plastic composite ingredient comprise, by weight, 15 parts of fly ash, 60-70 parts of calcium carbonate, 15-20 parts of paper-plastic composite grinding powder and 3-3.5 parts of coupling agent; during preparation, adding the fly ash and the calcium carbonate into a high-speed mixer for uniform stirring, raising the stirring temperature to 75-90 ℃ to form a uniform mixture, then adding the paper-plastic composite grinding powder and the coupling agent, continuing stirring, when the temperature is raised to 110-120 ℃, controlling the stirring time to be 10 minutes, discharging, transferring to cold mixing, discharging when the cold mixing temperature is controlled to 45 ℃, and obtaining the modified paper-plastic composite ingredient;
the calcium carbonate in the modified paper-plastic compound ingredient is light nano calcium carbonate or superfine heavy calcium carbonate;
the paper-plastic composite grinding powder is a paper-plastic waste bag formed by compounding a polypropylene woven bag and paper, and is crushed, extruded and ground into paper-plastic composite grinding powder;
the wear-resistant anti-slip agent is one or more of ethylene-n-butyl acrylate-glycidol HP661, ethylene-vinyl acetate-carbonyl 741 and ethylene-n-butyl acrylate-carbonyl 742 copolymer;
the swelling agent is one or more of a swelling agent JH-205 type, a swelling agent DF-102 type and a swelling agent DF-100 type;
the ionomer forming agent is one or more of ionomer forming agent WY-55, ionomer forming agent WY-68 and ionomer forming agent B-02A;
the coupling agent is one or more of a silane coupling agent KH-570, a titanate coupling agent NXH-102 and an aluminate coupling agent NXH-821;
the filler is one or more of white carbon black, light nano calcium carbonate and superfine heavy calcium carbonate;
the water content of the modified paper-plastic compound ingredient is less than 0.9 percent, and the melt index is 5-15g/10 min; the particle size of the paper-plastic composite grinding powder is 60-120 meshes.
2. The prefabricated section surface layer material for the anti-slip impact-resistant PVC plastic track as claimed in claim 1, wherein the mass ratio of fly ash, calcium carbonate, paper-plastic composite grinding powder and coupling agent in the modified paper-plastic composite ingredient is 10:70:20: 2.5.
3. The prefabricated section surface layer material for the anti-slip impact-resistant PVC plastic track as claimed in claim 1, wherein the PVC resin is SG-5 type, the apparent density is not less than 0.4g/ml, and the viscosity number is 108-119 ml/g.
4. The preformed profile material for the anti-skid impact-resistant PVC plastic track as claimed in claim 1, wherein the stabilizer is one or more of calcium zinc composite stabilizer KCZ-58, barium zinc composite stabilizer BZ-80A or rare earth composite stabilizer XT-2.
5. The preformed profile material for the anti-skid impact-resistant PVC plastic track, as claimed in claim 1, wherein the impact modifier is one or more of light-chlorine HDPE and acrylate graft copolymer ACM-P1, methyl methacrylate-butadiene-styrene copolymer TP-801 or ethylene-vinyl acetate copolymer EV 260; the nano zinc oxide is one or more of CY-JH05 type nano zinc oxide, CY-J200 type nano zinc oxide and CY-J10 type nano zinc oxide, and the particle size is 15-20 nanometers.
6. The prefabricated section surface layer material for the anti-skid and impact-resistant PVC plastic runway according to claim 1, wherein the silicone powder is one or more of silicone powder SK20R type, silicone powder SL-100 type and silicone powder KJ-B01 type.
7. The prefabricated section surface layer material for the anti-sliding impact-resistant PVC plastic track is characterized in that the antioxidant is 1010 type, 168 type and 1076 type; the ultraviolet absorbent is UV-531 type, and the ultraviolet absorbent is one or more of UV-9 and UV-327; the pigment is one or more of iron oxide red, iron oxide green, chromium oxide, ultramarine and phthalocyanine blue; the particle diameter of the fly ash is 20-50 nanometers, and the apparent density is 1.07-2.1g/cm3(ii) a The white carbon black has the white carbon black content of 98.5-99.7% and the particle size of 7-15 nanometers.
8. The preparation method of the prefabricated profile layer material for the anti-slip impact-resistant PVC plastic track as claimed in any one of claims 1 to 7, characterized in that the modified paper-plastic compound, the PVC resin, the stabilizer, the plasticizer DOTP, the plasticizer DOA, the impact modifier, the antioxidant, the ultraviolet absorber, the ionomer forming agent, the wear-resistant anti-slip agent, the expanding agent, the nano zinc oxide, the silicone powder, the filler and the pigment are added into a high-speed mixer, the hot mixing time is 8 to 10 minutes, the temperature reaches 110-120 ℃, the materials are discharged into a cold mixer to be cold mixed until the temperature reaches 40 to 50 ℃, and the dry-mixed clinker is obtained by discharging; and adding the dry-mixed clinker into a double-screw extruder, and extruding, cooling and granulating to prepare the prefabricated surface layer material for the PVC plastic track.
9. The method for preparing the material of the prefabricated profile layer for the anti-slip impact-resistant PVC plastic runway according to claim 8, wherein the temperature of the machine body when the twin-screw extruder extrudes is 155-.
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| CN113045245A (en) * | 2019-12-27 | 2021-06-29 | 江苏中鑫家居新材料股份有限公司 | SPC floor and preparation method thereof |
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Denomination of invention: Prefabricated surface material for anti skid and impact resistant PVC plastic track and its preparation method Effective date of registration: 20230322 Granted publication date: 20211015 Pledgee: Bank of China Co.,Ltd. Dongguan Branch Pledgor: GUANGDONG JISU NEW MATERIAL CO.,LTD. Registration number: Y2023980035672 |