CN113045868A - Biodegradable hollow tubular article - Google Patents

Biodegradable hollow tubular article Download PDF

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Publication number
CN113045868A
CN113045868A CN202010928224.4A CN202010928224A CN113045868A CN 113045868 A CN113045868 A CN 113045868A CN 202010928224 A CN202010928224 A CN 202010928224A CN 113045868 A CN113045868 A CN 113045868A
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CN
China
Prior art keywords
bio
powder
hollow tube
biodisintegratable
mixture
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Pending
Application number
CN202010928224.4A
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Chinese (zh)
Inventor
何建桦
刘国雄
陈信良
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Liang Yu Int Co ltd
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Liang Yu Int Co ltd
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Publication of CN113045868A publication Critical patent/CN113045868A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L99/00—Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A biodegradable hollow tubular object comprises a tube body and a through hole. The pipe body is obtained by granulating, extruding and molding the mixture. The bore extends along a centerline of the tube body and through the tube body. The mixture comprises a bio-based polymer, plant powder and lipid, wherein the bio-based polymer comprises bio-based polybutylene succinate. The biodegradable hollow tubular product of the invention does not contain petrochemical industrial products, can be biodegraded, and only generates carbon dioxide and water without generating methane by decomposition, thus meeting the strict requirements of global environmental protection.

Description

Biodegradable hollow tubular article
Technical Field
The invention relates to a hollow tubular object, in particular to a biological decomposable hollow tubular object.
Background
At present, various hollow tubular objects used in daily life are made of plastics in petrochemical industry, and the plastic has the most serious harm to human bodies and environment. For example, plastic straws are mostly made of cheap raw materials such as Polyethylene (PE) and polypropylene (PP), which are extracted from the petrochemical industry. When the plastic straw is used for cold and hot drinks at non-normal temperature, the plasticizer, the filler and the like mixed with the plastic straw are very soluble to release toxic substances, and can directly cause damage to human bodies. In addition, the plastic straw is not easy to decompose, and a large amount of garbage generated by discarding after use causes environmental pollution and damage, so that the natural ecological balance of the naphthatoxin earth is further realized.
To reduce the above-mentioned hazards, polylactic acid (PLA) is currently the hottest straw raw material, which is also one of the many biomass (biomas) materials. Hollow tubular objects made of bio-based plastics (polylactic acid blended with petrochemical industrial products) still need to be buried in environments with specific temperature, humidity and strains through special industries to be degraded, but the petrochemical industrial products still remain in soil; and the degradation of the polyacids releases carbon dioxide (CO)2) Water (H)2O) and methane (CH)4) The secondary pollution caused by accidental burning in the land is seriously influenced by international environmental protection groups, and further, more severe environmental protection specifications and green technical barriers are arranged for the products.
Disclosure of Invention
The present invention aims to provide a biodegradable hollow tubular object which overcomes the above-mentioned drawbacks of the prior art.
The biodegradable hollow tubular object comprises a tube body and a through hole. The pipe body is obtained by granulating, extruding and molding the mixture. The bore extends along a centerline of the tube body and through the tube body. Wherein the mixture comprises biobased polymer (biobased polymer), plant powder and lipid (lipid), and the biobased polymer comprises biobased polybutylene succinate [ biobased poly (butylene succinate), Bio-PBS ].
The invention has the beneficial effects that: the biodegradable hollow tubular product of the invention does not contain petrochemical industrial products, can be biodegraded, and only generates carbon dioxide and water without generating methane by decomposition, thus meeting the strict requirements of global environmental protection.
The present invention will be described in detail below:
preferably, the mixture is free of polylactic acid.
Preferably, the Bio-based polymer further comprises an auxiliary polymer to adjust Melt Flow Index (MFI) and other related physical properties of the mixture, the auxiliary polymer being selected from Bio-based polyhydroxyalkanoate (Bio-PHA), Bio-based polyethylene succinate (Bio-PES), or a combination thereof. Alternatively, the biobased polyhydroxyalkanoate is selected from biobased poly 3-hydroxybutyrate [ 3-hydroxybutyrate ], Bio-P3HB ], biobased poly 4-hydroxybutyrate [ 4-hydroxybutyrate ], Bio-P4HB ] or a combination thereof. In the present invention, the bio-based polymer is a fiber obtained by fermenting and extracting biomass, and is available from mitsubishi chemical corporation of japan.
Preferably, the plant powder is selected from the group consisting of coarse bran powder, rice hull ash powder, straw ash powder, soybean meal residue powder, wine meal residue powder, sweet potato powder, starch, lignin powder, coffee residue powder, tea leaf powder, and combinations thereof.
The lipid provides lubrication and increases the compatibility of the components in the mixture. Preferably, the lipid is selected from natural vegetable wax, beeswax, a natural vegetable oil, a derivative of a natural vegetable oil, or a combination thereof. Alternatively, the natural plant wax is selected from cane wax, palm wax, candelilla wax (candelilla wax), or a combination thereof. Alternatively, the natural vegetable oil is selected from the group consisting of wood wax oil, soybean oil, jojoba oil (jojoba oil), and combinations thereof. Alternatively, the derivative of the natural vegetable oil is Epoxidized Soybean Oil (ESO).
Preferably, the mixture further comprises an anti-hydrolysis agent.
Preferably, the bio-based polybutylene succinate is contained in a proportion of 10-55 wt% based on 100 wt% of the total weight of the mixture.
Drawings
Other features and effects of the present invention will be apparent from the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic perspective view of an embodiment of a biodegradable hollow tubular object of the present invention;
FIG. 2 is a schematic view of a part of a biodegradable hollow tubular object according to the present invention, in an enlarged manner, according to one or more embodiments; and
FIG. 3 is a schematic enlarged partial view of a second embodiment of the biodegradable hollow tubular object of the present invention.
Detailed Description
Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.
The invention will be further described in the following examples, but it should be understood that these examples are for illustrative purposes only and are not to be construed as limiting the practice of the invention.
Referring to fig. 1, the biodegradable hollow tubular object 1 of the present invention comprises a tubular body 11 and a through hole 12. The pipe body 11 is obtained by granulating, extruding and molding the mixture. The through hole 12 extends along the center line of the pipe body 11 and penetrates the pipe body 11.
[ example one ]
The process of the first embodiment of the biodegradable hollow tube (as shown in fig. 2) is as follows:
mixing 50 wt% of Bio-based polybutylene succinate (Bio-PBS) and 8 wt% of Bio-based polyhydroxyalkanoate (Bio-PHA) to obtain a Bio-based polymer 21; mixing 40 wt% of straw ash powder and lignin powder to obtain plant powder 22; the hot-melt palm wax and the epoxidized soybean oil are mixed together to form 2 wt% of lipid 23, and the lipid 23 is poured into the plant powder 22 and sufficiently stirred uniformly.
The components are sequentially added into an internal mixer to be heated to 125-150 ℃ and uniformly mixed to form a natural multi-component dough-like mixture, and then a strip-shaped soft body with a preset diameter and number is extruded from a die orifice of a granulator, and then the mixture is cooled by a supercooled water tank, dried and cut into initial raw material particles with a set size.
Preheating a suction pipe extruder to control the temperature to 140-165 ℃, pouring the raw material particles into a feeding funnel of the extruder, gradually heating and extruding the raw material particles into a hot melt paste strip, and synchronously regulating and controlling the blowing air pressure in the die to be 0.2-0.9kgG/cm2Blowing horn-shaped hollow tubes without excessive drapability under the condition that the surface pressure and the feeding rate are 5-15kg/h, penetrating through the guide hole rings, immersing the tubes in an open circulating water cooling tank subjected to ozone sterilization treatment at the temperature of 10-20 ℃, running for 10-20 seconds, and then floating out of the water surface for infrared temperature control and drying; then, the tube is cut into a biodegradable hollow tube 1 suitable for various uses by a cutter.
[ example two ]
Similar to the first embodiment, the process of the biodegradable hollow tube (as shown in fig. 3) of the second embodiment is as follows:
mixing 15 wt% of Bio-based polybutylene succinate (Bio-PBS) and 10 wt% of Bio-based poly-3-hydroxybutyrate (Bio-P3HB) to obtain a Bio-based polymer 21; mixing 70 wt% of soybean meal residue powder, starch and sweet potato powder to obtain plant powder 22; jojoba oil as lipid 23 and anti-hydrolysis agent 24 are mixed together to give 5 wt% and poured into plant powder 22 and stirred thoroughly.
The procedure for granulating the starting material pellets of example two was the same as in example one.
Preheating the suction pipe extruder to control the temperature to 155-The air pressure is 0.2-1.0kgG/cm2Blowing a horn-shaped hollow tube without excessive drapability under the condition that the surface pressure and the feeding rate are 8-20kg/h, penetrating through the guide hole ring, immersing the horn-shaped hollow tube in a circulating water cooling tank subjected to ozone sterilization treatment at the temperature of 8-18 ℃ for 15 seconds, and then floating out of the water surface for infrared temperature control drying; then, the tube is cut into a biodegradable hollow tube 1 suitable for various uses by a cutter.
[ third example ]
Similar to the first embodiment, the process of the biodegradable hollow tube (as shown in fig. 2) of the third embodiment is as follows:
mixing 35 wt% of Bio-based polybutylene succinate (Bio-PBS) and 15.5 wt% of Bio-based polyethylene succinate (Bio-PES) to obtain a Bio-based polymer 21; mixing 49 wt% of the dregs powder of the wine dregs and the dregs powder of the soybean dregs to obtain plant powder 22; 0.5 wt% of epoxidized soybean oil is poured into the plant powder 22 as lipid 23 and stirred sufficiently and uniformly.
The procedure for granulating the starting material pellets of example three was the same as in example one.
Preheating a suction pipe extruder, controlling the temperature at 150-2Blowing a horn-shaped hollow tube without excessive drapability under the condition that the surface pressure and the feeding rate are 4-12kg/h, penetrating through the guide hole ring, immersing the horn-shaped hollow tube in an open circulating water cooling tank subjected to ozone sterilization treatment at the temperature of 8-20 ℃, running for 5-15 seconds, and then floating out of the water surface for infrared temperature control and drying; then, the tube is cut into a biodegradable hollow tube 1 suitable for various uses by a cutter.
In conclusion, the biodegradable hollow tubular object of the invention does not contain petrochemical industrial products, can be biodegraded, only generates carbon dioxide and water without generating methane, meets the strict requirements of continuous development and environmental protection in the world, and can really achieve the aim of the invention.
The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.

Claims (10)

1. A biodegradable hollow tube, comprising:
the pipe body is obtained by granulating, extruding and molding the mixture; and
a bore extending along a centerline of the tube body and through the tube body;
the mixture comprises a bio-based polymer, plant powder and lipid, wherein the bio-based polymer comprises bio-based polybutylene succinate.
2. The biodisintegratable hollow tube of claim 1, wherein: the mixture does not contain polylactic acid.
3. The biodisintegratable hollow tube of claim 1, wherein: the bio-based polymer further comprises an auxiliary polymer selected from the group consisting of bio-based polyhydroxyalkanoates, bio-based polyethylene succinate, or a combination thereof.
4. The biodisintegratable hollow tube of claim 3, wherein: the bio-based polyhydroxyalkanoate is selected from bio-based poly-3-hydroxybutyrate, bio-based poly-4-hydroxybutyrate or a combination thereof.
5. The biodisintegratable hollow tube of claim 1, wherein: the plant powder is selected from coarse bran powder, rice hull ash powder, rice straw ash powder, soybean meal residue powder, wine meal residue powder, sweet potato powder, starch, lignin powder, coffee residue powder, tea powder or their combination.
6. The biodisintegratable hollow tube of claim 1, wherein: the lipid is selected from natural vegetable wax, beeswax, natural vegetable oil, derivatives of natural vegetable oil, or combinations thereof.
7. The biodisintegratable hollow tube of claim 6, wherein: the natural vegetable wax is selected from cane wax, palm wax, candelilla wax or a combination thereof.
8. The biodisintegratable hollow tube of claim 6, wherein: the natural vegetable oil is selected from the group consisting of wood wax oil, soybean oil, jojoba oil, and combinations thereof, and the derivative of the natural vegetable oil is epoxidized soybean oil.
9. The biodisintegratable hollow tube of claim 1, wherein: the mixture also includes an anti-hydrolysis agent.
10. The biodisintegratable hollow tube of claim 1, wherein: the content ratio of the bio-based polybutylene succinate is 10-55 wt% based on the total weight of the mixture as 100 wt%.
CN202010928224.4A 2019-12-26 2020-09-07 Biodegradable hollow tubular article Pending CN113045868A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201922376015 2019-12-26
CN2019223760159 2019-12-26

Publications (1)

Publication Number Publication Date
CN113045868A true CN113045868A (en) 2021-06-29

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CN202010928224.4A Pending CN113045868A (en) 2019-12-26 2020-09-07 Biodegradable hollow tubular article

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM567058U (en) * 2018-06-15 2018-09-21 黃千鐘 Eco-straws

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM567058U (en) * 2018-06-15 2018-09-21 黃千鐘 Eco-straws

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Application publication date: 20210629