6results about How to "Good mouth" patented technology

The invention discloses a water-soluble polyvinyl alcohol film and a preparation method thereof, and belongs to the technical field of polyvinyl alcohol films, the preparation method comprises the following steps: 1, stirring and mixing a compound plasticizer and PVA resin powder, and standing after mixing to obtain a preprocessed PVA mixed resin raw material; 2, stirring and mixing the pre-processed PVA mixed resin raw material and an auxiliary agent to obtain a melt-processable polyvinyl alcohol composition; and 3, carrying out melt extrusion granulation and film blowing on the melt-processable polyvinyl alcohol composition to obtain the water-soluble polyvinyl alcohol film. According to the invention, the additive with an adsorption effect is used as an auxiliary agent, a step-by-step plasticizing method is adopted, PVA and the plasticizer are mixed in advance, then the auxiliary agent is added, and through the step-by-step plasticizing process, the PVA plasticizing effect is improved, film yellowing caused by too long hot working time of PVA is avoided, the thermal stability of the PVA composition during hot working is improved, and the opening property of a blown film is improved.

The invention relates to the technical field of preparation of polypropylene films, and particularly discloses an antibacterial polypropylene film and a preparation method thereof. The antibacterial polypropylene film comprises 100 parts of polypropylene, 4-8 parts of PE color master batch, 2-4 parts of an anti-blocking agent, 0.1-0.3 part of white mineral oil and 5-8 parts of an antibacterial agent, the preparation method of the antibacterial agent comprises the following steps: firstly calcining vermiculite, then adding sodium hexametaphosphate, hydroxyethyl cellulose, diethylenetriamine and water, and then adding a silver ion compound, a zinc ion compound and a copper ion compound to obtain the antibacterial agent. The antibacterial polypropylene film provided by the invention not only ensures the uniform dispersion of the antibacterial agent in the polypropylene matrix, but also ensures the good antibacterial property of the polypropylene film, and maintains the physical properties of the film at the same time.

This invention provides an aliphatic polyester, a polyester composition comprising the same, and their applications, belonging to the technical field of biodegradable polyester materials. The aliphatic polyester comprises diacid residues and diol residues: the diacid residues include the following residues: a1), 61.2–69.1 mol% succinic acid residues based on a1) and a2), based on a total molar percentage of 100 mol% of a1) and a2), and a2), 30.9–38.8 mol% sebacic acid residues based on a1) and a2), based on a total molar percentage of 100 mol% of a1); the diol residues are selected from 1,4-butanediol residues in at least an equimolar amount as the diacid residues; the mass percentage of oligomers with a number average molecular weight <650 in the aliphatic polyester is 1.09–3%; and the molecular weight distribution coefficient of the aliphatic polyester is 1.72–2.83. The aliphatic polyester exhibits good high-speed blown film forming performance, retains excellent opening performance after high-speed blown film forming, and also possesses excellent puncture resistance.

The aluminum-plastic film comprises a heat sealing layer with an anti-blocking agent embedded in the surface, the anti-blocking agent comprises composite microspheres, the composite microspheres are mesoporous inorganic microspheres internally loaded with water-absorbing expansion particles, the thickness of the heat sealing layer is T heat sealing, the average particle size of the water-absorbing expansion particles is D particles, and the average particle size of the water-absorbing expansion particles is T particles. The average particle size of the mesoporous inorganic microspheres is D microspheres, and the average mesoporous aperture of the mesoporous inorganic microspheres is D mesoporous. The long-service-life aluminum plastic film for the lithium battery is reasonable in formula and excellent in opening performance and heat sealing performance; mesoporous inorganic microspheres loaded with water-swelling microspheres are used as an anti-blocking agent of the heat-sealing layer, so that the anti-blocking agent is endowed with water absorption performance, and the service life of the battery is prolonged; according to the invention, the composite microspheres are used as the opening agent, so that the battery capacity attenuation amplitude in an extreme environment is relatively small. The invention further discloses a production process of the long-service-life aluminum plastic film for the lithium battery.

The invention relates to the technical field of polyester materials, particularly discloses an organic polyester opening master batch for an optical film, and also discloses a preparation method and application of the organic polyester opening master batch. According to the organic polyester opening master batch for the optical film, on the premise that the opening property is guaranteed, the haze of the optical film is reduced, the definition of the optical film is improved, the roughness of the film is reduced, the flatness of the film is improved, and the defects that scratches are likely to be generated are overcome.

The invention relates to the technical field of material processing, in particular to an antistatic polyethylene open master batch and a preparation method thereof. The antistatic polyethylene opening master batch comprises the following components in parts by weight: 40-60 parts of polyethylene matrix resin, 4.8-6.5 parts of a plant oil-based amide opening agent, 15-25 parts of a functional antistatic agent and 0.5-1.5 parts of other auxiliaries. The preparation method of the functional antistatic agent comprises the following steps: premixing the ethylene-1-octylene copolymer, the itaconic acid and the initiator, extruding through a double-screw extruder to obtain POE-g-ITA, premixing the POE-g-ITA and the polyethylene glycol monostearate again, and extruding through the double-screw extruder to obtain the functional antistatic agent. The prepared antistatic polyethylene opening master batch is used for preparing a polyethylene film, and has stable and good opening property and antistatic property under the condition of ensuring the mechanical property and good appearance.