13 results about "Biodegradable product" patented technology

The present invention protects biodegradable combinations containing natural fibres and at least one polymer, and a method for obtaining same. The main purpose of the invention is to produce biodegradable products that decompose into the environment in less than 12 months and have a shelf life of 30 months in controlled storage conditions at 30°C and in conditions as determined by the manufacturer. The biodegradable combinations replace plastics in utensils such as, inter alia, plates, glasses, cups, cutlery, plastic bags, and lids.

The utility model belongs to auxiliary equipment of a film blowing machine, and particularly relates to an air supplementing and bubble stabilizing device of a film blowing machine for full-biodegradable products, which comprises a shell, a telescopic rib component is arranged in the shell, and one side of the telescopic rib component is in driving connection with a driving component. The contact dead angles of the arc-shaped supporting columns and the film bubbles are greatly reduced, contact is larger, and the centers of the film bubbles are better stabilized.

The present disclosure relates to biofoam and rigid biomaterial formulations and processes for producing biofoam and rigid biomaterial products using the formulations. The present disclosure also relates to kits comprising the formulations for use in implementing processes of the disclosure.

This invention belongs to the field of biodegradation promoter technology, specifically relating to a green synthesis method for a biodegradation promoter of cyclic olefin polymers. The invention involves aerobic fermentation of a mixture of *Bacillus thuringiensis*, *Bacillus licheniformis*, and *Candida*. The fermented product contains abundant enzymes and bioactive agents, which are beneficial for promoting the degradation of cyclic olefin polymers. Furthermore, by using modified chitosan to immobilize the fermented product, microorganisms and their metabolites can be fixed on the chitosan surface, promoting the full release of active functions. In addition, the stability of the modified chitosan structure is improved through a cross-linking reaction. Therefore, the biodegradation promoter provided by this invention can not only promote the biodegradation of cyclic olefin polymers but also be used in the preparation of biodegradable products containing cyclic olefin polymers.

This invention relates to the field of polymer materials technology, and discloses an anti-aging modified polylactic acid composite material and its preparation method. The material uses 100 parts by weight of polylactic acid resin as a base, and includes 0.5–3.0 parts by weight of a composite anti-aging additive and 0.2–0.8 parts by weight of a lubricant. The composite anti-aging additive is composed of an antioxidant, a hydrolytic stabilizer, and a light stabilizer in a mass ratio of 1:1:1. Preparation involves vacuum drying, high-speed mixing, and melt extrusion granulation. This invention utilizes the hydrolytic stabilizer to preferentially cap the carboxyl groups of polylactic acid, eliminating its consumption of hindered phenolic antioxidants and hindered amine light stabilizers. This achieves synergistic protection against heat-oxidation, damp heat, and ultraviolet aging, resulting in a mechanical retention rate of over 85% after aging, a yellowing index below 0.5, and good processing fluidity. It is suitable for biodegradable products with high weather resistance requirements.

A method is described. The method comprising inputting starch into an extruder, inputting a plasticizer into the extruder, outputting an extrudate from the extruder, and chopping the extrudate output from the extruder into pellets. The extrudate includes the starch and the plasticizer. A pellet for manufacturing a biodegradable product is described. The pellet comprises starch and a plasticizer. A composition of the pellet, by weight percent, includes a starch weight percent representative of the starch included in the pellet and a plasticizer weight percent representative of the plasticizer included in the pellet. The starch weight percent is greater than the plasticizer weight percent and a density of the pellet is at least 0.5 g / cm3.

The invention relates to the field of biodegradation, in particular to a pesticide residue degradation composite enzyme based on delftia and a preparation method and equipment thereof.The pesticide residue degradation composite enzyme comprises a smashing cylinder, the bottom of the smashing cylinder penetrates through and is fixedly connected with a feeding cylinder, the bottom of the feeding cylinder is connected with a screening assembly, and supporting blocks are fixedly connected to the four corners of the bottom of the smashing cylinder; a first motor is fixedly connected to the top of the smashing barrel, the output end of the first motor penetrates through the smashing barrel to be fixedly connected with a smashing rod, smashing blades are fixedly connected to the outer portion of the smashing rod, a constant-temperature shaking table is arranged on the right side of the smashing barrel, and a fermentation tank is arranged on the right side of the constant-temperature shaking table; the top of the fermentation tank is fixedly connected with a second motor. The degradation rates of the enzyme for organophosphorus pesticides such as phoxim, dichlorvos and dimethoate with the concentration of 200 mg / L within 48 hours reach 93.8%, 92.5% and 91.2% respectively and are far higher than those of mainstream biodegradable products (72%-80%) in the market, and the degradation period is only 5 days and is shortened by 83% compared with that of a traditional enzyme.

This invention refers to a liquid base product that comprises vegetable oil, and / or blond glycerin, and / or animal fat and nitrilotriethanol; a liquid formulated product that comprises the base product and organic surfactants, the catalysts, reagents, and / or water; a liquid final product that comprises the formulated product and at least an isocyanate. This invention also refers to a biodegradable solid product formed from a liquid final product. This invention also refers to a biodegradable product fabrication process.

The application discloses a full-natural-field degradable material and a preparation method and application thereof. The full-natural-field degradable material comprises the following raw materials in parts by weight: biodegradable polyester 50-96 parts; biological enzyme 2-20 parts; degradation aid 2-20 parts; and inorganic filler 0-10 parts. Through reasonable formula collocation, the material can be degraded by more than 90% in the full natural field within 1-8 months, effectively overcoming the plastic pollution problem caused by the slow degradation or even non-degradation of traditional plastics and biodegradable polyester materials in the natural environment. Meanwhile, the material can be used for more than one year at room temperature and low humidity, and can replace the traditional difficult-to-degrade plastics such as polyethylene, polyethylene terephthalate, polyamide and polypropylene to be applied to the preparation of biodegradable products.

This invention discloses a fully biodegradable nanofiber composite material and its preparation method, belonging to the field of polymer composite material technology. The composite material comprises the following components by mass percentage: 60-80% polybutylene terephthalate-adipate, 15-25% polylactic acid, 5-15% nanofiber, 0.1-2% chain extender, and 0-1% functional additives; wherein the nanofiber is obtained by hydrophobic modification of bamboo powder, and the surface hydroxyl groups are shielded by non-polar alkyl chains. The composite material has a tensile strength of not less than 23 MPa, an elongation at break of not less than 450%, and a transmittance of 79.6%-85.7% for visible light at 530 nm wavelength at a thickness of 0.10 mm, with a haze of 2.6%-3.2%. This invention, through molecular-level hydrophobic modification and in-situ nanofiber generation process, achieves uniform dispersion and excellent interfacial compatibility of bamboo fiber in biodegradable plastics, significantly improving the mechanical properties and optical transparency of the composite material, which can be widely used in transparent packaging, agricultural films, and disposable biodegradable products.

The present application relates to the field of microbiological technology, and particularly relates to a viscous polyhydroxyalkanoate, and its preparation and use. The viscous polyhydroxyalkanoate can be produced by fermenting a Pseudomonas strain containing a mutant of PHA polymerase PhaC61-3, and can be used for the preparation of biodegradable products.

The invention relates to a biochemical composite paraffin removal and inhibition agent and application, and belongs to the technical field of paraffin removal and inhibition of oil wells, the biochemical composite paraffin removal and inhibition agent is prepared from the following components by weight: 20-30 parts of a lipopeptide biosurfactant, 8-15 parts of alkyl dimethyl carboxyl betaine, 3-5 parts of a demulsifier, 2-5 parts of cocoanut fatty acid diethanolamide, and 45-67 parts of water. The wax-proof viscosity-reducing agent has good wax-proof viscosity-reducing effects on high-wax-content crude oil; the paraffin inhibition rate is more than 80%, and the viscosity reduction rate is more than 65%; the interfacial tension and the wetting reversal effect can be effectively reduced, and the permeation and dispersion properties are relatively strong; the system is wide in application range, is suitable for the formation temperature range of 30-120 DEG C, is suitable for the surface crude oil viscosity of below 1000 mPa.s, is suitable for the produced liquid water content of more than 20%, and is suitable for the formation working fluid level of more than 300 m; the average alternating load can be reduced to a greater extent, and the average alternating load of the biochemical composite paraffin remover and inhibitor can be reduced by more than 60% at most in site construction; the components of the system are biodegradable products and have the characteristics of being green, non-toxic, pollution-free, free of organic chlorine, safe, environment-friendly and the like.