Frisbee made of renewable and recyclable materials

Abstract

The invention relates to a renewable and recyclable material frisbee, and belongs to the technical field of sports, leisure and entertainment equipment preparation. The frisbee comprises the following raw materials in parts by weight: 20-70 parts of a recycled base material, 2-10 parts of a polyolefin elastomer, 5-25 parts of a modified bio-based filler, 0.2-1 part of an accelerant and 0-2 parts of an auxiliary material. The modified bio-based filler is prepared from active biological waste residues and a long alkyl chain silane coupling agent through surface treatment. According to the invention, the PCR base material and the modified bio-based filler are taken as main raw materials, and the POE elastomer, the accelerant and the auxiliary material are introduced, so that the PCR base material, the modified bio-based filler, the POE elastomer, the accelerant and the auxiliary material are matched with one another, and the flying disc which is moderate in hardness, comfortable to hold, stable in flying, environment-friendly and recyclable is obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of sports, leisure and entertainment equipment preparation, and in particular relates to a frisbee made of renewable and recyclable materials. Background Art

[0002] Frisbee is a simple outdoor sport suitable for all ages. Currently, existing frisbees are made of polypropylene (PP). However, PP does not meet the growing trend of environmentally friendly sports and leisure equipment. Furthermore, existing frisbees made from recycled polymer (PCR) suffer from issues such as softness, resulting in unstable flight, and brittle cracking at low temperatures, leading to substandard product quality. Summary of the Invention

[0003] In view of the above problems, the object of the present invention is to provide a flying disc made of recycled materials.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A recycled material flying disc comprises the following raw materials in parts by weight: 20-120 parts of recycled base material, 2-10 parts of polyolefin elastomer (POE), 5-25 parts of modified bio-based filler, 0.2-1 part of accelerator, and 0-2 parts of auxiliary component material.

[0006] Furthermore, the recycled base material is one or a mixture of any ratio of recycled low-density polyethylene, recycled high-density polyethylene, recycled polypropylene, recycled polymethyl methacrylate, recycled polystyrene, and recycled acrylonitrile-styrene-butadiene copolymer.

[0007] Preferably, the recycled base material is a mixture of recycled low-density polyethylene and recycled high-density polyethylene, and the flying disc includes the following raw materials in parts by weight: 20-50 parts of recycled low-density polyethylene, 30-70 parts of recycled high-density polyethylene, 2-10 parts of polyolefin elastomer, 5-25 parts of modified bio-based filler, and 0-2 parts of auxiliary components.

[0008] Furthermore, the modified bio-based filler is prepared by surface treatment of active biological waste residue and a long alkyl chain silane coupling agent.

[0009] Preferably, the specific steps of the surface treatment include:

[0010] Under stirring at 300-500 r / min and 50-75° C., 100 mL of a solution containing 20-30 g of the long alkyl chain silane coupling agent prepared in Example 3 (the solvent is a mixture of water and ethanol in a volume ratio of 7-9:1) is sprayed into 100 g of the active biological waste residue prepared in Example 1. After complete spraying, the mixture is kept warm and stirred for 1-1.5 h. Then, stirring is stopped and the mixture is dried to obtain a modified bio-based filler.

[0011] Furthermore, the active biological waste residue is obtained by acid-activating the biological waste residue.

[0012] Preferably, the active biological waste residue is obtained by pre-treating the biological waste residue and then activating it with acid.

[0013] Furthermore, the pretreatment is to wash the biological waste residue with water and alkali to remove dust and easily detached substances on the surface of the biological waste residue.

[0014] Furthermore, the acid used in the acid soaking activation treatment is one of hydrogen peroxide, potassium permanganate and perchlorate.

[0015] Furthermore, the temperature of the acid soaking activation treatment is 50-70° C., and the time of the acid soaking activation treatment is 30-90 minutes.

[0016] Furthermore, the biological waste residue is one or a mixture of any proportions of coffee bean residue, straw residue, coconut residue, and rice husk residue.

[0017] Preferably, it is coffee bean grounds or coconut grounds.

[0018] Furthermore, the long alkyl chain silane coupling agent is prepared by sequentially subjecting 10-undecenoic acid and an aminosilane coupling agent to a dehydration condensation reaction and an epoxidation reaction.

[0019] Preferably, in the dehydration condensation reaction of 10-undecenoic acid and the aminosilane coupling agent, the molar ratio of the 10-undecenoic acid to the aminosilane coupling agent is 1.1-1.3:1.

[0020] Furthermore, the dehydration condensation reaction of 10-undecenoic acid and an aminosilane coupling agent comprises:

[0021] 10-undecenoic acid, EDC (1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride), NHS (N-hydroxysuccinimide) and ethanol are mixed uniformly and stirred at 66-70°C and pH 5-6 for 1-1.5 hours. An aminosilane coupling agent is then added and the mixture is stirred and reacted for 4-8 hours. The reaction is stopped, the mixture is rotary evaporated, washed and dried to obtain a dehydration condensation reaction product.

[0022] Preferably, the molar ratio of 10-undecenoic acid, EDC, and NHS is 1:1.1-1.2:1.1-1.2.

[0023] Furthermore, the epoxidation reaction comprises:

[0024] The dehydration condensation reaction product, urea, acidic alumina and glacial acetic acid are mixed evenly, heated to 50-70°C, and then hydrogen peroxide is added. The mixture is stirred and kept warm for 12-24 hours. The liquids are separated, the organic layer is washed, rotary evaporated and dried to obtain a long alkyl chain silane coupling agent.

[0025] Furthermore, the mass fraction of the hydrogen peroxide is 10-30%.

[0026] Preferably, the mass ratio of the dehydration condensation reaction product, urea, acidic aluminum oxide, and hydrogen peroxide in hydrogen peroxide is 20:1-3:1.5-3.5:9-14.

[0027] Furthermore, the accelerator is used to promote the cross-linking and curing of the terminal epoxy groups in the long-chain alkyl groups in the modified bio-based filler. Therefore, the accelerator is one or a mixture of several amino curing agents in any ratio;

[0028] The amino curing agent is one or a mixture of any proportion of ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine and diethylaminopropylamine.

[0029] Furthermore, the auxiliary component comprises one of an antioxidant and a lubricant, or a mixture of the two in any ratio.

[0030] Beneficial effects of the present invention:

[0031] The present invention provides a frisbee made of renewable and recyclable materials. The frisbee is made of a PCR base material and a modified bio-based filler as main raw materials. By introducing a POE elastomer, an accelerator, and auxiliary components, the PCR base material, the modified bio-based filler, the POE elastomer, the accelerator, and the auxiliary components cooperate with each other to obtain a frisbee with moderate hardness, a comfortable grip, a stable flight, and environmentally friendly and recyclable properties.

[0032] Significantly, the present invention utilizes a long alkyl chain silane coupling agent to modify the active biological waste residue, and utilizes the highly active silanol bonds hydrolyzed from the siloxane of the silane coupling agent to couple and connect with the active bonds on the surface of the active biological waste residue, so that the long alkyl chain silane segment is grafted onto the active biological waste residue. On the one hand, the interface performance between the biological waste residue and the PCR base material is improved, and the blending processing performance therebetween is improved. On the other hand, the long alkyl chain and the terminal epoxy group are connected to the surface of the bio-based waste residue, and the flexible characteristics of the long alkyl chain are utilized to further improve the interface performance between the biological waste residue and the PCR base material. Secondly, the cross-linking characteristics of the epoxy group under the action of the amino curing agent are utilized to obtain an interpenetrating cross-linked network with flexible characteristics, thereby further improving the hardness and mechanical properties of the obtained flying disc. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1

[0035] Preparation of active biological waste residue:

[0036] The coffee bean residues were washed with water, alkali washed, and then dried to obtain pretreated coffee bean residues. Subsequently, 100 g of the pretreated coffee bean residues was immersed in 200 g of hydrogen peroxide (30% by mass), heated to 55° C., and kept warm for 30 minutes.

[0037] Comparative Example 2

[0038] Preparation of active biological waste residue:

[0039] The shredded coconut residue was washed with water, alkali, and then dried to obtain pretreated shredded coconut residue. Subsequently, 100 g of the pretreated shredded coconut residue was immersed in 200 g of hydrogen peroxide (mass fraction 30%), heated to 60° C., and kept warm for 90 minutes.

[0040] Example 3

[0041] Preparation of long alkyl chain silane coupling agent:

[0042] A1. 0.11 mol of 10-undecenoic acid, 0.12 mol of EDC (1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride), 0.12 mol of NHS (N-hydroxysuccinimide), and 200 mL of ethanol were mixed uniformly, and the mixture was stirred at 66° C., pH 5-6 for 1.5 h. Subsequently, 0.1 mol of an aminosilane coupling agent (KH550) was added, and the mixture was stirred at this temperature for 6 h. The reaction was stopped, and the mixture was rotary evaporated, washed, and dried to obtain a dehydration condensation product.

[0043] A2. Mix 200 g of the dehydration condensation reaction product, 10 g of urea, 15 g of acidic alumina, and 300 mL of glacial acetic acid, heat to 50°C, then add 90 g of hydrogen peroxide, continue stirring and keep warm for 24 h, separate the liquids, wash the organic layer, rotary evaporate, and dry to obtain a long alkyl chain silane coupling agent.

[0044] Example 4

[0045] Preparation of long alkyl chain silane coupling agent:

[0046] A1. 0.13 mol of 10-undecenoic acid, 0.14 mol of EDC (1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride), 0.14 mol of NHS (N-hydroxysuccinimide), and 200 mL of ethanol were mixed uniformly, and the mixture was stirred at 70° C., pH 5-6 for 1.5 h. Subsequently, 0.1 mol of an aminosilane coupling agent (KH550) was added, and the mixture was stirred at this temperature for another 4 h. The reaction was stopped, and the mixture was rotary evaporated, washed, and dried to obtain a dehydration condensation product.

[0047] A2. Mix 200 g of the dehydration condensation reaction product, 30 g of urea, 35 g of acidic alumina, and 300 mL of glacial acetic acid, heat to 70°C, then add 140 g of hydrogen peroxide, continue to stir and react for 16 h, separate the liquids, wash the organic layer, rotary evaporate, and dry to obtain a long alkyl chain silane coupling agent.

[0048] Example 5

[0049] Preparation of modified bio-based fillers:

[0050] Under stirring at 300 r / min and 50° C., 100 mL of a solution containing 20 g of the long alkyl chain silane coupling agent prepared in Example 3 (the solvent is water and ethanol in a volume ratio of 9:1) was sprayed into 100 g of the active biological waste residue prepared in Example 1. After the spraying was complete, the mixture was kept warm and stirred for 1.5 h. The stirring was stopped and the mixture was dried to obtain a modified bio-based filler.

[0051] Example 6

[0052] Preparation of modified bio-based fillers:

[0053] Under stirring conditions of 500 r / min and 75° C., 100 mL of a solution containing 40 g of the long alkyl chain silane coupling agent prepared in Example 4 (the solvent is water and ethanol in a volume ratio of 9:1) was sprayed into 100 g of the active biological waste residue prepared in Example 2. After the spraying was complete, the mixture was kept warm and stirred for 1 h. The stirring was stopped and the mixture was dried to obtain a modified bio-based filler.

[0054] Example 7

[0055] Preparation of the flying disc:

[0056] The first step is to prepare the following raw materials in parts by weight: 20 parts of recycled low-density polyethylene, 60 parts of recycled high-density polyethylene, 2 parts of polyolefin elastomer, 12 parts of modified bio-based filler prepared in Example 5, 0.5 parts of lubricant (polyethylene wax), 0.5 parts of antioxidant 1010, and 0.3 parts of accelerator (diethylaminopropylamine);

[0057] The second step is to mix the above raw materials, melt extrude and shape them through a twin-screw extruder to obtain a flying disc, and the extrusion temperature is 200-230℃.

[0058] Example 8

[0059] Preparation of the flying disc:

[0060] The first step is to prepare the following raw materials in parts by weight: 40 parts of recycled low-density polyethylene, 30 parts of recycled high-density polyethylene, 5 parts of polyolefin elastomer, 25 parts of modified bio-based filler prepared in Example 6, 0.7 parts of lubricant (polyethylene wax), 1 part of antioxidant 1010, and 0.5 parts of accelerator (hexamethylenediamine);

[0061] The second step is to mix the above raw materials, melt extrude and shape them through a twin-screw extruder to obtain a flying disc, and the extrusion temperature is 200-230℃.

[0062] Example 9

[0063] Preparation of the flying disc:

[0064] The first step is to prepare the following raw materials in parts by weight: 50 parts of recycled low-density polyethylene, 35 parts of recycled high-density polyethylene, 10 parts of polyolefin elastomer, 5 parts of modified bio-based filler prepared in Example 5, 0.8 parts of lubricant (polyethylene wax), 0.4 parts of antioxidant 1010, and 1 part of accelerator (diethylenetriamine);

[0065] The second step is to mix the above raw materials, melt extrude and shape them through a twin-screw extruder to obtain a flying disc, and the extrusion temperature is 200-230℃.

[0066] Comparative Example 1

[0067] Preparation of flying discs: Compared with Example 9, an equal amount of the modified bio-based filler was replaced with the active biological waste residue prepared in Example 1, and the rest were the same.

[0068] Comparative Example 2

[0069] Preparation of flying disc: Compared with Example 9, the modified bio-based filler was replaced with the following active biological waste residue in equal parts, and the rest was the same:

[0070] Under stirring at 300 r / min and 50° C., 100 mL of a solution containing 20 g of an aminosilane coupling agent (KH550) (the solvent is water and ethanol in a volume ratio of 9:1) was sprayed into 100 g of the active biological waste residue prepared in Example 1. After the spraying was complete, the mixture was kept warm and stirred for 1 h. The stirring was stopped and the mixture was dried to obtain a modified bio-based filler.

[0071] Comparative Example 3

[0072] Preparation of flying disc: Compared with Example 9, the modified bio-based filler was deleted, and the rest was the same.

[0073] The physical properties of the flying discs obtained in Examples 7-9 and Comparative Examples 1-3 were tested, and the results are shown in Table 1.

[0074] Table 1

[0075]

[0076]

[0077] From the data in Table 1, it can be seen that the hardness and mechanical properties of the frisbees obtained in Examples 7-9 are better than those obtained in Comparative Examples 1-3.

[0078] The physical properties of the flying discs obtained in Examples 7-9 and Comparative Examples 1-3 were flight tested to observe the flight stability of the flying discs. The results are shown in Table 2. The test method is as follows: the flying discs were flown 100 times, each time with an arm force set to 10 N. The distance of each flight was measured, the average flight distance was calculated, and then the dispersion between each flight distance and the average flight distance was compared. The flight stability was divided into four levels according to the distribution and size of the 100 dispersion values, including level one, level two, level three, and level four. Among them, level one corresponds to a concentrated distribution of the 100 dispersion values ​​and a small maximum dispersion value; level two corresponds to a relatively concentrated distribution of the 100 dispersion values ​​and a small maximum dispersion value; level three corresponds to a relatively dispersed distribution of the 100 dispersion values ​​and a large maximum dispersion value; level four corresponds to a dispersed distribution of the 100 dispersion values ​​and a large maximum dispersion value. The flight stability is arranged from high to low as level one, level two, level three, and level four, and levels three and four are considered unqualified flight products.

[0079] Table 2

[0080] Flight stability Example 7 Example 8 Example 9 Comparative Example 1 Comparative Example 2 Comparative Example 3 level Level 1 Level 1 Level 1 Level 3 Level 2 Level 4

[0081] From the data in Table 2, it can be seen that the flying discs obtained in Examples 7-9 have qualified flight stability and excellent performance.

[0082] Throughout the specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A frisbee made of recycled materials, characterized in that: The invention comprises the following raw materials in parts by weight: 20-120 parts of recycled base material, 2-10 parts of polyolefin elastomer, 5-25 parts of modified bio-based filler, 0.2-1 part of accelerator and 0-2 parts of auxiliary component material.

2. A recycled material flying disc according to claim 1, characterized in that: The recycled base material is one or a mixture of any proportions of recycled low-density polyethylene, recycled high-density polyethylene, recycled polypropylene, recycled polymethyl methacrylate, recycled polystyrene, and recycled acrylonitrile-styrene-butadiene copolymer.

3. The recycled material flying disc according to claim 1, characterized in that: The recycled base material is a mixture of recycled low-density polyethylene and recycled high-density polyethylene. The flying disc includes the following raw materials in parts by weight: 20-50 parts of recycled low-density polyethylene, 30-70 parts of recycled high-density polyethylene, 2-10 parts of polyolefin elastomer, 5-25 parts of modified bio-based filler, and 0-2 parts of auxiliary components.

4. The recycled material flying disc according to claim 1, characterized in that: The modified bio-based filler is prepared by surface treatment of active biological waste residue and a long alkyl chain silane coupling agent.

5. A recycled material flying disc according to claim 4, characterized in that: The active biological waste residue is obtained by acid-activating the biological waste residue; the acid used in the acid-activation treatment is one of hydrogen peroxide, potassium permanganate and perchlorate; the temperature of the acid-activation treatment is 50-70° C., and the time of the acid-activation treatment is 30-90 minutes.

6. A recycled material flying disc according to claim 5, characterized in that: The biological waste residue is one or a mixture of any proportion of coffee bean residue, straw residue, coconut residue and rice husk residue.

7. The recycled material flying disc according to claim 4, characterized in that: The long alkyl chain silane coupling agent is prepared by sequentially performing dehydration condensation reaction and epoxidation reaction on 10-undecenoic acid and an aminosilane coupling agent.

8. The recycled material flying disc according to claim 7, characterized in that: The dehydration condensation reaction of 10-undecenoic acid and an aminosilane coupling agent comprises: After 10-undecenoic acid, EDC, NHS and ethanol are mixed evenly, stirred at 66-70°C and pH 5-6 for 1-1.5 hours, aminosilane coupling agent is then added, and the reaction is continued with stirring at this temperature for 4-8 hours. The reaction is stopped, rotary evaporated, washed, and dried to obtain a dehydration condensation reaction product.

9. The recycled material flying disc according to claim 8, characterized in that: The epoxidation reaction comprises: The dehydration condensation reaction product, urea, acidic alumina and glacial acetic acid are mixed evenly, heated to 50-70°C, and then hydrogen peroxide is added. The mixture is stirred and kept warm for 12-24 hours. The liquids are separated, the organic layer is washed, rotary evaporated and dried to obtain a long alkyl chain silane coupling agent.

10. The recycled material flying disc according to claim 1, characterized in that: The accelerator is one or a mixture of several amino curing agents in any ratio; the auxiliary component includes one or a mixture of two of antioxidants and lubricants in any ratio.

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