摘要:
A multilayer structure (4) of the present invention includes a hollow plate-like body (1) made of a thermoplastic resin, and a fiber sheet (2) and a thermoplastic resin film (3) that are laminated on at least one principal surface of the hollow plate-like body. Even if this multilayer structure (4) is curved, raised wrinkles (6) are not formed or not likely to be formed on the inner surface due to buckling or bending, so that the strength is not likely to be reduced. Thus, the multilayer structure can satisfy both flexural rigidity and flexural strength while maintaining the light weight. The fiber sheet (2) is preferably a multiaxial fiber sheet and/or a woven fabric. The lamination is preferably thermal lamination using an adhesive film interposed between the layers.
摘要:
Disclosed in this invention is a composite stretch film for agricultural use, formed by bonding two stretch films together with an adhesive through hot rolling or UV curing such that primary stretch directions thereof cross each other. Compared to the existing single-layer agricultural films having the same thickness, the composite stretch film for agricultural use of the present invention is significantly improved not only in transverse and longitudinal tensile strength but also in transverse and longitudinal tear strength. Therefore, it is able to meet the requirements for use in agriculture with a lesser thickness and hence reduce the use cost. In particular, in case of the composite stretch film being made of a polyester material, it further offers the advantages such as highlight transmittance which changes mildly with time, better thermal insulation properties and better humidity-regulating capabilities. In particular, in case of it being made of a degradable polyester materials, it will further offer profoundly significant benefits in terms of energy saving and environmental protection.
摘要:
The invention relates to a biaxially oriented single-layer or multilayer porous film which comprises at least one porous layer and said layer comprises at least one propylene polymer, at least one ß-nucleating agent and particles, said particles having a melting point of over 200°C and at most an agglomerate or at most a particle having a particle size of >1 μm being detectable on a REM recording of a film sample of 10mm2.
摘要:
Die Erfindung betrifft eine Verpackungsfolie zum Verpacken von zu sterilisierenden Produkten, insbesondere Lebensmitteln, wobei die Verpackungsfolie - eine Gasbarriereschicht und - eine Siegelschicht aufweist, wobei die Gasbarriereschicht wenigstens drei Lagen mit zwei Außenlagen aus einem Polyamid (PA) und einer zwischen den Außenlagen angeordneten Mittelschicht aus Ethylen-Vinylalkohol-Copolymer (EVOH) aufweist, die koextrudiert sind, gekennzeichnet dadurch, dass die Gasbarriereschicht monoaxial gereckt ist. Die Erfindung betrifft ferner ein Verfahren und ein verpacktes Produkt.
摘要:
A lithium-ion battery outer package material, provided with: a base layer, and a first adhesive layer, a metallic foil layer, a corrosion prevention treatment layer, a second adhesive layer, and a sealant layer sequentially layered on one of the surfaces of the base layer. When a tensile test (a sample of the substrate layer is stored for 24 hours in a 23°C and 40% RH environment; a tensile test is subsequently performed in a 23°C and 40% RH environment with the specimen width being 15mm, the distance between gauge points being 50 mm, and the tensile speed being 100 mm/min; and the tensile elongation and tensile stress of the specimen are measured) is performed, the tensile elongation in a first direction, which is either the TD direction or the MD direction of the sample, relative to the length of the sample is 50% to less than 80%, and the tensile stress in a second direction, which is perpendicular to the first direction, is 150 to 230 MPa.
摘要:
Ballistic composite articles comprising a fabric section, an overlay section disposed on the strikeface of the composite article and comprising a thermoplastic resin, and optionally an adhesive layer disposed between the fabric section and the overlay section are described. The ballistic composite articles can provide comparable or improved protection against projectile threats relative to conventional ballistic composites consisting only of a same-type fabric section having comparable areal density, as evidenced by comparable V50 values and/lower backface deformation values when tested under the same conditions.
摘要:
The invention relates to a pneumatic tyre, the belt of which is reinforced by a multilayer laminate comprising at least one multiaxially stretched thermoplastic polymer film, such as a bi-stretched PET film, for example, arranged between and in contact with two layers of a rubber composition such as natural rubber. Regardless of the pulling direction in question, the thermoplastic polymer film preferably has an elastic modulus E greater than 500 MPa, a maximum tensile stress σ max greater than 80 MPa, and an elongation at break Ar greater than 40%. The aforementioned thermoplastic polymer film, arranged between two layers of diene rubber compositions, can be used in particular in the belts of pneumatic tyres as a puncture-resistant protective film.