JIS K6400 PDF
JIS K Test Methods for Flexible Polyurethane Foam. JIS K Flexible cellular polymeric materials – Determination of physical properties – Part 4: Compression set and fatigue characteristics. JIS K Flexible cellular polymeric materials – Determination of physical properties – Part 1: General rules.
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Particular polyol is not particularly limited as long as it has the above molecular weight properties, the ethylene oxide sometimes referred to as EO and polyether polyols obtained by ring-opening polymerization of propylene oxide sometimes referred to as PO it is preferable that. We can comply with your demand for special sequence with addition and improvement of outer control PC k4600 and program for inside part of tester.
User Account Sign in to save searches and organize your favorite content. Preparation of the foaming stock solution] A process of preparing the foam stock solution is not particularly limited, preferably, a mixture consisting of the remainder of the components except the polyisocyanate component sometimes referred to as polyol mixture is prepared and then mixed with the polyisocyanate component the method and the like.
Preparation of the polyol mixture, from the viewpoint of not contacted with a foaming agent and a catalyst as much as possible, relative to the polyol component, the catalyst was blended, then blended foam stabilizer, other ingredients such as crosslinking agents, and finally with the foamable component it is preferable to blend a certain blowing agent. Polymer polyols, may be a commercially available product, for example, manufactured by Sanyo Chemical Industries, Ltd.
To further reduce the thickness of the seat pad is higher resilience by the seat pad is required, the larger the impact resilience modulus, easily repel the vibration caused by vehicle travel or the like. Target value of the resonance frequency is less than 4 Hz, a target value of the vibration magnification is 2.
De Gruyter – Sciendo. This tester can also be used to check the strength of… Wednesday April 4th, Yasuda By admin.
RuiLin Mu mrl tust. Foaming k66400 solution, polyurethane foam according to claim 1 or 2 comprising ethylene oxide-terminated crosslinking agent.
Urethane Foam Tester
We can comply with your demand for special sequence with addition and improvement of outer control PC software and program for inside part of tester. Wood Tension Fixtures Instron testing machines can follow ASTM D and find the strength parallel or perpendicular to the grain, internal bond strength, and cleavage strength for wood.
This tester can also be used to check the strength of…. As a result, the layer of air by closed cells expressing the viscosity to reduce the resonant frequency k6400 the vibration ratio is considered that it is easy to absorb vibrations.
This is succeeding model of AF Series which had many delivery result to car industries, seat manufacturers, raw materials manufacturers and public enterprises etc. By foaming stock solution containing the catalyst, it is possible to enhance the reactivity at the time of foam molding.
O6400 tester is especially suitable to evaluate compression strength of packaged cargo when it is lower loaded during its logistic process.
This is succeeding model of AF Series which jiz many delivery result to car industries, seat manufacturers, raw materials manufacturers and public enterprises etc. Rebound resilience polyurethane foam, the resonance frequency and the vibration magnification, the density of the polyurethane foam, closed cell content, cell size, they tend to depend on the hardness and the like.
JIS K – Instron
Polyurethane foams, depending on the application, the mechanical properties, various properties such as heat insulation and vibration-absorbing properties are required. On the other hand, the vibration-absorbing polyurethane foam is generally due to the breathability of the polyurethane foam.
Additive may be used in amounts normally used. Seat pad of the present invention, in the foam molding of a polyurethane foam, as the mold, can be obtained by using a mold having a shape of a desired seat pad.
Compression Test Jig for Foam Rubber Specimens
Country of ref document: Various known polyfunctional aliphatic polyisocyanate component, it is possible to use cycloaliphatic and aromatic isocyanates. A weight average molecular weight of 4, to 10, wherein the weight average molecular weight per functional group is a functional group 1, to 4, polyols, one terminal propylene oxide group and at least terminal ethylene oxide groups polyurethane foam according to any one of claim 1 to 7.
As the catalyst, there can be used those commonly used in the production of polyurethane foams may be used alone or in combination depending on the application and requirements. EP Kind code of ref document: The tester capacity comes in either a maximum of 5 kN or 10 kN respectively.
Cell diameter of cell diameter polyurethane foam [mu] k400 are those reflect the microscope, and the actual measured five times or more, and the mean value was calculated. The polyol ingredient comprises a polyol having a weight-average molecular weight of 4, and a weight-average molecular weight per functional group of 1,, in an amount of 65 parts by mass or larger per parts by mass of the polyol ingredient.
JIS- KK This tester is used to repeatedly test k400 residual strain of polyurethane foam and latex foam soft material according to the constant displacement method. The results reveal that the constitution of the foam either open or closed cells of pores and the thickness and hardness of the cushion layer strongly affect the sound insulation performance of the floor.
But not the type of the functional group particularly limited with the specific polyol, specific polyol, since it is preferably obtained by ring-opening polymerization of Jus and PO, the functional group, at least one terminal propylene oxide group and a terminal ethylene oxide groups it is preferable that. Abstract PDF References Article Recommendations Abstract Urethane foam mattresses are commonly used as cushioning when placing panel flooring on the floor slab of a building.
Wood’s structural use as load bearing beams in various construction applications requires stringent flexural testing. Instron testing machines k400 follow ASTM D and find the strength parallel or perpendicular to the grain, internal bond strength, and cleavage strength for wood.
A weight average molecular weight of 4, to 10, a weight average molecular weight per functional group is 1, to 4, of the polyol, according to any one of claims 1 to 5, which is a polyether polyol polyurethane foam. Therefore, the his resilience and high vibration absorption was characteristic of ji.