41results about How to "Improve heat aging" patented technology

The disclosure relates to using metal acrylate compounds such as zinc diacrylate (ZDA), zinc dimethacrylate (ZDMA), among others for curing epoxy functional (and other cross-linking compounds), and to compositions containing such compounds for use in powder coat, film, adhesive, among other applications. ZDA and ZDMA containing compounds can cure the epoxy component of the compositions while being substantially free of conventional curing agents.

The invention relates to a preparation method of an anti-aging polyester film material. The preparation method comprises the following steps: preparing 0.1%-0.2% of W944, 0.1%-0.2% of UV329, 0.1%-0.2% of UV531, 0.4%-0.5% of zinc stearate, 0.4%-0.5% of zeolite, 0.05% of TiO2 and polyester; carrying out extrusion, film blowing and further stretching on the master batch to obtain an anti-aging polyester film; placing the polyester film in an aging environment with an ultraviolet light source, an infrared light source and a heat source for aging, acquiring an image of the polyester film, and sending the image into the neural network model for judging the anti-aging performance of the film and the consistency of the anti-aging performance; and optimizing the components, the proportion and the preparation process of the anti-aging polyester material master batch according to the judgment result. Therefore, the preparation process of the anti-aging polyester material can be optimized, and the polyester material with better light stability and heat stability is obtained.

An oxygen sensor includes a generally cylindrical casing. A detecting section is disposed at an axially one end side of the casing so as to detect a concentration of oxygen. Lead wires are electrically connected with the detecting section and outwardly extend through an axially other end side of the casing. A seal member is disposed inside an end section located at the axially other end side of the casing. The lead wires pierce the seal member. An insertion section is located at the axially one end side of the casing so that the detecting section projects over the insertion section. The insertion section is inserted into a through-hole formed in a wall of an exhaust pipe, so as to install the oxygen sensor to the exhaust pipe in a condition where the detecting section projects into the exhaust pipe. A ratio of a length of an outer projecting section of the oxygen sensor to a cross-sectional area of the insertion section inserted into the through-hole is set at a value not lower than a value at which a temperature in the seal member reaches a heat resistant temperature limit of the seal member.

The disclosure relates to using metallic acrylate compounds such as zinc diacrylate (ZDA), zinc dimethacrylate (ZDMA), among others for curing epoxy functional (and other cross-linking compounds), and to compositions containing such compounds for use in powder coat, film, adhesive, among other applications. ZDA and ZDMA containing compounds can also be supplied as an intermediate product that can cure the epoxy component of the compositions while being substantially free of conventional curing agents.

To improve the handlability and safety of a perchlorate solution used as a stabilizer for chlorine-containing resins. This invention provides a perchlorate solution of improved handlablity and safety and a method for heat-stabilizing chlorine-containing resin compositions by adding (a) 0.004 to 10 parts by weight of a perchlorate solution containing 1 to 60 % by weight of perchlorate, 5 to 50 % by weight of water-soluble organic solvent and 20 to 94 % by weight of water, and (b) 0.001 to 10 parts by weight of at least one silicate compound represented by the general formula (I) to 100 parts by weight of a chlorine-containing resin: M(O)a nSiO2mH2O (I) in which M is at least one metal selected from alkaline earth metals and aluminum, a is 1 when M is an alkaline earth metal and 3 / 2 where M is aluminum, n is from 1 to 5, and m is any positive integer.

The present invention relates to filled, impact-modified polycarbonate compositions containingA) aromatic polycarbonate and / or aromatic polyester carbonate,B) a first graft polymer ofB.1 from 0.1 to 30 wt. % of at least one vinyl monomer onB.2 from 99.9 to 70 wt. % of one or more graft bases having glass transition temperatures <10° C., the graft base consisting of at least 50 wt. % of a silicone rubber,C) a second graft polymer, which is different from component B, ofC.1 from 5 to 95 wt. % of at least one vinyl monomer onC.2 from 95 to 5 wt. % of one or more graft bases having glass transition temperatures <10° C., the graft base consisting of at least 50 wt. % of an EPDM rubber,D) rubber-free vinyl (co)polymer and / or polyalkylene terephthalate, andE) polymer additives,wherein components B and C are present in a ratio (B:C) in the range from 20:80 to 80:20 andwherein the composition containsfrom 10 to 92 parts by weight of component A,from 8 to 90 parts by weight of the sum of components B and C,from 0 to 35 parts by weight of component D, andfrom 0 to 30 parts by weight of component E,which have good stability to ageing and which are distinguished by high low-temperature strength and by low gloss, to a process for their production and to their use in the production of molded bodies.

The invention discloses a two-component acrylate structural adhesive and a preparation method thereof. The two-component acrylate structural adhesive comprises a component A and a component B, wherein the volume ratio of the component A to the component B is 10: 1. The component A comprises the following components by weight percent: 50%-75% of acrylate monomer, 20%-40% of toughening tackifier, 0.1%-3% of reducing agent, 0.1%-6% of stabilizer and 0.1%-10% of additive. The component B comprises the following components by weight percent: 20%-50% of oxidant, 20%-50% of plasticizer, 10%-20% of toughening agent and 0.1%-10% of additive.

The invention discloses a manufacturing method for a sample for researching an inter-turn insulation aging process of a dry-type air-core reactor and a flake sample, and relates to a flake material sample and the manufacturing method. The method comprises the following steps: manufacturing flake polyester films; wiping the surfaces of the flake polyester films with alcohol, and performing drying treatment; forming a square opening and an outflow opening, and adhering two flake polyester films tightly without air bubbles; adding epoxy resin into the square opening dropwise; adhering the flake polyester films to the upper surface of the square opening; performing pressurizing and heating treatment on a composite insulating material sample; manufacturing a round sample. According to the sample, three square flake polyester films are adhered tightly; the square opening is formed in the central position of the second square flake polyester film, and the overflow opening is formed in the side of the second square flake polyester film, and an epoxy resin filling structure body is arranged in the square opening. The sample is applicable to various aging tests of thermal aging, electric aging, moisturizing, and mechanical vibration; space charge test and infrared spectral measurement can be performed on the sample.