Abstract:
The invention relates to hybrid fabric comprising: a high-performance polyethylene (HPPE) fiber having a tensile modulus of at least 110 GPa, preferably higher than 135 GPa, as measured according to ASTM D885M-2014; and a non-polymeric fiber, wherein the cross-sectional area of the HPPE fiber is equal to or smaller than the cross-sectional area of the non-polymeric fiber, the cross-sectional area being defined as the linear density of the fiber divided by volumetric density of the fiber. The invention also relates to a composite comprising the hybrid fabric and to an article comprising the composite.
Abstract:
The invention relates to a process for the preparation of a particulate ultra high molecular weight polyethylene (pUHMWPE copolymer, comprising the steps of preparing a magnesium containing carrier, loading the carrier with a organometallic compound forming a supported catalyst and contacting the supported catalyst with ethylene and at least one olefinic co-monomer under polymerization conditions, wherein the organometallic compound is of the formula R33P═N—TiCpXn.
Abstract translation:本发明涉及一种制备颗粒状超高分子量聚乙烯(pUHMWPE共聚物)的方法,包括以下步骤:制备含镁载体,用形成负载型催化剂的有机金属化合物负载载体并使负载型催化剂与乙烯和 至少一种烯属共聚单体,其中所述有机金属化合物具有式R 33 P = N-TiC p X n。
Abstract:
Particulate ultra high molecular weight polyethylene (pUHMWPE) are disclosed having an intrinsic viscosity (IV) of at least 4 dl/g, a molecular weight distribution Mw/Mn of less than 4.0, a median particle size D50 of between 50 and 200 μm, a residual Ti-content of less than 10 ppm, a residual Si-content of less than 50 ppm, and a total ash content of less than 1000 ppm.
Abstract:
The present invention relates to a multilayer hybrid composite comprising: i) at least one layer of a fabric A comprising from 0 to 20 vol % high performance polymer fibers, based on the total volume of the fabric A, and from 100 to 80 vol % fibers selected from the group consisting of glass fibers and carbon fibers, based on the total volume of the fabric A; ii) at least one layer of a fabric B comprising from 20 to 70 vol % high performance polymer fibers, based on the total volume of the fabric B, and from 80 to 20 vol % fibers selected from the group consisting of glass fibers and carbon fibers, based on the total volume of the fabric B; and iii) a matrix material, wherein the at least one layer of the fabric B is adjacent to the at least one layer of the fabric A, and wherein the concentration (vol %) of the high performance polymer fibers in the fabric B is higher than the concentration (vol %) of the high performance polymer fibers in the fabric A, and wherein the high performance polymer fibers have a tenacity of at least 1.5 N/tex.
Abstract:
The invention relates to a process for the preparation of a particulate ultra high molecular weight polyethylene (UHMWPE), comprising the steps of preparing a magnesium containing carrier, loading the carrier with a organometallic compound forming a supported catalyst and contacting the supported catalyst with at least ethylene under polymerization conditions, wherein the organometallic compound is of the formula R33P═N—TiCpXn.
Abstract translation:本发明涉及一种制备颗粒状超高分子量聚乙烯(UHMWPE)的方法,包括以下步骤:制备含镁载体,用形成负载型催化剂的有机金属化合物负载载体,并将负载型催化剂与至少 乙烯在聚合条件下,其中有机金属化合物具有式R 33 P = N-TiC p X n。