CN112679976A - Wood-plastic composite tray and manufacturing method thereof - Google Patents
Wood-plastic composite tray and manufacturing method thereof Download PDFInfo
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- CN112679976A CN112679976A CN202011580141.7A CN202011580141A CN112679976A CN 112679976 A CN112679976 A CN 112679976A CN 202011580141 A CN202011580141 A CN 202011580141A CN 112679976 A CN112679976 A CN 112679976A
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Abstract
The invention relates to the technical field of materials, in particular to a wood-plastic composite tray and a manufacturing method thereof; the wood-plastic composite tray comprises the following raw materials: 30-40 parts of plastic reclaimed materials, 20-30 parts of low-density polyethylene, 10-20 parts of copolymerization type polypropylene, 20-30 parts of straw powder, 0.2-0.6 part of antioxidant, 0.3-0.6 part of foaming agent, 6.0-10 parts of foaming regulator, 2.0-5.0 parts of calcium-zinc stabilizer, 6.0-10 parts of glass fiber, 0.2-0.6 part of anti-aging agent, 2.0-4.0 parts of ethyl gallate and 0.4-0.8 part of polyethylene wax; the raw materials are calculated according to the parts by weight; waste materials such as straws and the like are used for replacing wood in the raw materials of the wood-plastic composite tray, so that wood resources are saved, and the wood-plastic composite tray is environment-friendly; on the other hand, waste straw materials are utilized, so that the influence of straw burning on the atmospheric environment is avoided, and meanwhile, the recycling of resources can be realized.
Description
Technical Field
The invention relates to the technical field of materials, in particular to a wood-plastic composite tray and a manufacturing method thereof.
Background
The wood-plastic pallet is made of wood-plastic materials produced by adopting the international most advanced patent technology and is formed by assembling pallets and backing plates with various specifications and sizes. The advantages of a wood tray, a plastic tray and a steel tray are integrated, the defects are basically eliminated, and the price is lower than that of other various trays; the product has the advantages of high strength, good toughness, no deformation, no moisture absorption, no mildew or moth damage, corrosion resistance, aging resistance, easy processing, low cost, recoverability, no pollution and the like; the defects of poor cleanliness, easy damage and short service life of the wooden pallet are overcome, and the defects of poor rigidity, high price, small specification flexibility and the like of the all-plastic pallet are also overcome. It is widely used for storage and logistics in pharmaceutical industry, chemical industry, beverage, tobacco, building industry, etc.
The wood-plastic pallet needs wood raw materials, so the wood consumption in the production process of the wood-plastic pallet is large, which is not beneficial to protecting the natural environment; in addition, in order to ensure that the wood-plastic tray manufactured in the later period is not easy to be affected with damp and mildew in the using process and shorten the service life, a fumigation or high-temperature disinfection process is also carried out after the wood-plastic product is manufactured, so that the production process is increased virtually and the production efficiency is reduced.
Aiming at the problems in the background technology, the invention aims to provide a wood-plastic composite tray and a manufacturing method thereof.
Disclosure of Invention
The invention aims to provide a wood-plastic composite tray and a manufacturing method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the wood-plastic composite tray is characterized by comprising the following raw materials: 30-40 parts of plastic reclaimed materials, 20-30 parts of low-density polyethylene, 10-20 parts of copolymerization type polypropylene, 20-30 parts of straw powder, 0.2-0.6 part of antioxidant, 0.3-0.6 part of foaming agent, 6.0-10 parts of foaming regulator, 2.0-5.0 parts of calcium-zinc stabilizer, 6.0-10 parts of glass fiber, 0.2-0.6 part of anti-aging agent, 2.0-4.0 parts of ethyl gallate and 0.4-0.8 part of polyethylene wax; the raw materials are calculated according to the parts by weight.
A manufacturing method of a wood-plastic composite tray is characterized by comprising the following steps:
s1: putting a plastic reclaimed material, low-density polyethylene, copolymerization type polypropylene and straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer to be within a range of 100-120 ℃, heating and drying the materials while stirring the materials, and removing water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 170-190 ℃, and the temperature of a die head is 180-200 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
As a further scheme of the invention: the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ.
As a further scheme of the invention: the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1:1.
Compared with the prior art, the invention has the beneficial effects that:
waste materials such as straws and the like are used for replacing wood in the raw material preparation of the wood-plastic composite tray, so that wood resources are saved, and the wood-plastic composite tray is environment-friendly; on the other hand, waste straw materials are utilized, so that the influence of straw burning on the atmospheric environment is avoided, and meanwhile, the recycling of resources can be realized;
in addition, the antioxidant, the calcium-zinc stabilizer, the anti-aging agent, the ethyl gallate and the polyethylene wax are added in the production process of the wood-plastic composite tray, and the wood-plastic composite tray product is not easy to be affected with damp and oxidized by air due to the filled antioxidant, calcium-zinc stabilizer and anti-aging agent, so that mould marks are generated, and the service life of the product of the wood-plastic composite tray is prolonged;
in addition, the filled ethyl gallate has an antibacterial effect, the polyethylene wax has waterproof and tray surface smoothing effects, and the production raw materials enable the produced wood-plastic composite tray product to be free of fumigation or high-temperature disinfection processes after production and manufacturing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The wood-plastic composite tray is characterized by comprising the following raw materials: 30 parts of plastic reclaimed materials, 20 parts of low-density polyethylene, 10 parts of copolymerization type polypropylene, 20 parts of straw powder, 0.2 part of antioxidant, 0.3 part of foaming agent, 6.0 parts of foaming regulator, 2.0 parts of calcium-zinc stabilizer, 6.0 parts of glass fiber, 0.2 part of antioxidant, 2.0 parts of ethyl gallate and 0.4 part of polyethylene wax; the raw materials are calculated according to the parts by weight;
the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ;
the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1: 1;
the manufacturing method of the wood-plastic composite tray is characterized by comprising the following steps:
s1: putting the plastic reclaimed material, the low-density polyethylene, the copolymer polypropylene and the straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer within a 100 ℃ interval, heating and drying the materials while stirring the materials, and removing the water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 170 ℃, and the temperature of a die head is 180 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
Example 2
The wood-plastic composite tray is characterized by comprising the following raw materials: 40 parts of plastic reclaimed materials, 30 parts of low-density polyethylene, 20 parts of copolymerization type polypropylene, 30 parts of straw powder, 0.6 part of antioxidant, 0.6 part of foaming agent, 10 parts of foaming regulator, 5.0 parts of calcium-zinc stabilizer, 10 parts of glass fiber, 0.6 part of anti-aging agent, 4.0 parts of ethyl gallate and 0.8 part of polyethylene wax; the raw materials are calculated according to the parts by weight;
the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ;
the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1: 1;
the manufacturing method of the wood-plastic composite tray is characterized by comprising the following steps:
s1: putting the plastic reclaimed material, the low-density polyethylene, the copolymer polypropylene and the straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer within a 120 ℃ interval, heating and drying the materials while stirring the materials, and removing the water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 190 ℃, and the temperature of a die head is 200 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
Example 3
The wood-plastic composite tray is characterized by comprising the following raw materials: 35 parts of plastic reclaimed materials, 25 parts of low-density polyethylene, 15 parts of copolymerization type polypropylene, 25 parts of straw powder, 0.4 part of antioxidant, 0.4 part of foaming agent, 8.0 parts of foaming regulator, 3.0 parts of calcium-zinc stabilizer, 8.0 parts of glass fiber, 0.4 part of antioxidant, 3.0 parts of ethyl gallate and 0.6 part of polyethylene wax; the raw materials are calculated according to the parts by weight;
the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ;
the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1: 1;
the manufacturing method of the wood-plastic composite tray is characterized by comprising the following steps:
s1: putting the plastic reclaimed material, the low-density polyethylene, the copolymer polypropylene and the straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer within a 110 ℃ interval, heating and drying the materials while stirring the materials, and removing the water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 180 ℃, and the temperature of a die head is 190 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
Example 4
The wood-plastic composite tray is characterized by comprising the following raw materials: 32 parts of plastic reclaimed materials, 22 parts of low-density polyethylene, 12 parts of copolymerization type polypropylene, 22 parts of straw powder, 0.3 part of antioxidant, 0.4 part of foaming agent, 7.0 parts of foaming regulator, 3.0 parts of calcium-zinc stabilizer, 7.0 parts of glass fiber, 0.3 part of antioxidant, 2.0 parts of ethyl gallate and 0.5 part of polyethylene wax; the raw materials are calculated according to the parts by weight;
the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ;
the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1: 1;
the manufacturing method of the wood-plastic composite tray is characterized by comprising the following steps:
s1: putting the plastic reclaimed material, the low-density polyethylene, the copolymer polypropylene and the straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer within a 105 ℃ interval, heating and drying the materials while stirring the materials, and removing the water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 175 ℃, and the temperature of a die head is 185 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
Example 5
The wood-plastic composite tray is characterized by comprising the following raw materials: 37 parts of plastic reclaimed materials, 27 parts of low-density polyethylene, 17 parts of copolymerization type polypropylene, 27 parts of straw powder, 0.5 part of antioxidant, 0.5 part of foaming agent, 9.0 parts of foaming regulator, 4.0 parts of calcium-zinc stabilizer, 8.0 parts of glass fiber, 0.5 part of anti-aging agent, 4.0 parts of ethyl gallate and 0.7 part of polyethylene wax; the raw materials are calculated according to the parts by weight;
the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ;
the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1: 1;
the manufacturing method of the wood-plastic composite tray is characterized by comprising the following steps:
s1: putting the plastic reclaimed material, the low-density polyethylene, the copolymer polypropylene and the straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer within a 115 ℃ interval, heating and drying the materials while stirring the materials, and removing the water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 185 ℃, and the temperature of a die head is 195 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
According to the raw material proportioning composition and the production method in the five embodiments, five manufactured wood-plastic composite tray products are produced, and through detection, the performance parameters of the wood-plastic composite tray products produced in the embodiments are shown in the following table:
as can be seen from the table, the wood-plastic composite tray product manufactured according to the raw material composition and the production method of the product in the embodiment 3 has the best performance parameter indexes.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The wood-plastic composite tray is characterized by comprising the following raw materials: 30-40 parts of plastic reclaimed materials, 20-30 parts of low-density polyethylene, 10-20 parts of copolymerization type polypropylene, 20-30 parts of straw powder, 0.2-0.6 part of antioxidant, 0.3-0.6 part of foaming agent, 6.0-10 parts of foaming regulator, 2.0-5.0 parts of calcium-zinc stabilizer, 6.0-10 parts of glass fiber, 0.2-0.6 part of anti-aging agent, 2.0-4.0 parts of ethyl gallate and 0.4-0.8 part of polyethylene wax; the raw materials are calculated according to the parts by weight.
2. The wood-plastic composite tray is characterized by comprising the following raw materials: 35-40 parts of plastic reclaimed materials, 25-30 parts of low-density polyethylene, 15-20 parts of copolymerized polypropylene, 25-30 parts of straw powder, 0.4-0.6 part of antioxidant, 0.4-0.6 part of foaming agent, 8.0-10 parts of foaming regulator, 3.0-5.0 parts of calcium-zinc stabilizer, 7.0-10 parts of glass fiber, 0.4-0.6 part of anti-aging agent, 3.0-4.0 parts of ethyl gallate and 0.6-0.8 part of polyethylene wax; the raw materials are calculated according to the parts by weight.
3. The wood-plastic composite tray is characterized by comprising the following raw materials: 35 parts of plastic reclaimed materials, 25 parts of low-density polyethylene, 15 parts of copolymerization type polypropylene, 25 parts of straw powder, 0.4 part of antioxidant, 0.5 part of foaming agent, 8.0 parts of foaming regulator, 4.0 parts of calcium-zinc stabilizer, 8.0 parts of glass fiber, 0.4 part of antioxidant, 3.0 parts of ethyl gallate and 0.6 part of polyethylene wax; the raw materials are calculated according to the parts by weight.
4. The wood-plastic composite tray of any of claims 1-3, wherein: the antioxidant is a mixture of a sulfur-containing antioxidant and a phosphorus-containing antioxidant, and the ratio of the sulfur-containing antioxidant to the phosphorus-containing antioxidant is 1: 1; the sulfur-containing antioxidant is DSTDP and DLTDP; the phosphorus-containing antioxidant is P-EFQ.
5. The wood-plastic composite tray of any of claims 1-3, wherein: the foaming agent is polyurethane, the foaming regulator is an ACR processing agent, the anti-aging agent is a mixture of N-phenyl-alpha-aniline, N-phenyl-beta-naphthylamine and p-phenylenediamine, and the raw material components of the N-phenyl-alpha-aniline, the N-phenyl-beta-naphthylamine and the p-phenylenediamine are as follows: 1:1:1.
6. A method of making a wood plastic composite pallet according to any of claims 1 to 5 characterised by the steps of:
s1: putting a plastic reclaimed material, low-density polyethylene, copolymerization type polypropylene and straw powder into a roller heating stirrer according to the raw material proportion, stirring and mixing, setting the temperature of the roller heating stirrer to be within a range of 100-120 ℃, heating and drying the materials while stirring the materials, and removing water in the raw materials; after the raw materials are fully stirred and uniformly mixed and dried, adding an antioxidant, a foaming agent, a foaming regulator, a calcium-zinc stabilizer, glass fiber, an anti-aging agent, ethyl gallate and polyethylene wax into a roller heating stirrer; continuously stirring and mixing;
s2: putting the uniformly mixed materials into an extrusion screw machine for melting and granulating, wherein the temperature of a machine barrel of the extrusion screw machine is 170-190 ℃, and the temperature of a die head is 180-200 ℃;
s3: putting a plastic raw material molded by plastic granules of an extrusion screw machine into a plastic injection machine, and then injecting the plastic granules into a molding die by using the plastic injection machine for injection molding; the rough wood-plastic composite tray after injection molding can be packaged into a wood-plastic composite tray product sheet after demolding, cooling, finishing, shaping, spraying of anti-slip paint and curing.
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