摘要:
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising: at least one styrene butadiene random copolymer resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without a tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack. In contrast an article of the same construction but with a matrix material without the styrene butadiene random copolymer resin exhibits (very strong) interior delamination of the fibrous layers and the article of the same construction with the styrene butadiene random copolymer resin, but without the tackifier as the matrix material exhibits light delamination.
摘要翻译:提供了一种防弹制品,其包括多个纤维层,每个所述层包括纤维网,其中根据ASTM D 7269-07的纤维具有至少800mN / tex(1100MPa)的强度,并且基质 材料,其中所述基质材料包括包含至少一种苯乙烯丁二烯无规共聚物树脂和至少一种增粘剂的混合物。 与具有相同结构的制品相比,不含增粘剂的基体材料,根据本发明的制品在未老化和老化状态下的纤维层之间具有较高的粘附性,以及在水浸后的较低的水吸收。 额外包含金属或陶瓷板的物品在弹道攻击之后表现出最小或甚至不分层的纤维层。 相反,具有相同结构但是没有苯乙烯丁二烯无规共聚物树脂的基体材料的物品显示(非常强烈的)纤维层的内部分层和与苯乙烯丁二烯无规共聚物树脂相同构造的制品,但没有增粘剂 因为基体材料表现出轻的分层。
摘要:
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising at least one self-crosslinking acrylic resin and/or at least one crosslinkable acrylic resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak and the article passes the gasoline soak test. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack, whereas an article of the same construction but with a matrix material without tackifier exhibits interior delamination of the fibrous layers.
摘要翻译:提供了一种防弹制品,其包括多个纤维层,每个所述层包括纤维网,其中根据ASTM D 7269-07的纤维具有至少800mN / tex(1100MPa)的强度,并且基质 材料,其中所述基质材料包括包含至少一种自交联丙烯酸树脂和/或至少一种可交联丙烯酸树脂的混合物和至少一种增粘剂。 与不具有增粘剂的基质材料相比,具有相同结构的物品,但是根据本发明的制品在未老化和老化状态下的纤维层之间具有较高的附着力,并且在水浸泡后的较低的水吸收量,并且制品通过 汽油浸泡试验。 另外包括金属或陶瓷板的物品在弹道攻击之后表现出最小或甚至没有纤维层的分层,而具有相同结构但是没有增粘剂的基体材料的制品表现出纤维层的内部分层。
摘要:
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising: at least one styrene butadiene random copolymer resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without a tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack. In contrast an article of the same construction but with a matrix material without the styrene butadiene random copolymer resin exhibits (very strong) interior delamination of the fibrous layers and the article of the same construction with the styrene butadiene random copolymer resin, but without the tackifier as the matrix material exhibits light delamination.
摘要翻译:提供了一种防弹制品,其包括多个纤维层,每个所述层包括纤维网,其中根据ASTM D 7269-07的纤维具有至少800mN / tex(1100MPa)的强度,并且基质 材料,其中所述基质材料包括包含至少一种苯乙烯丁二烯无规共聚物树脂和至少一种增粘剂的混合物。 与具有相同结构的制品相比,不含增粘剂的基体材料,根据本发明的制品在未老化和老化状态下的纤维层之间具有较高的粘附性,以及在水浸后的较低的水吸收。 额外包含金属或陶瓷板的物品在弹道攻击之后表现出最小或甚至不分层的纤维层。 相反,具有相同结构但是没有苯乙烯丁二烯无规共聚物树脂的基体材料的物品显示(非常强烈的)纤维层的内部分层和与苯乙烯丁二烯无规共聚物树脂相同构造的制品,但没有增粘剂 因为基体材料表现出轻的分层。
摘要:
A ballistic resistant article is presented comprising a plurality of fibrous layers, each of said layers comprising a network of fibers, wherein the fibers have a strength of at least 800 mN/tex (1100 MPa) according to ASTM D 7269-07 and a matrix material, wherein the matrix material comprises a mixture comprising at least one self-crosslinking acrylic resin and/or at least one crosslinkable acrylic resin, and at least one tackifier. Compared with an article of the same construction but with a matrix material without tackifier the article according to the invention comprises a higher adhesion between the fibrous layers both in the unaged and aged state and a lower water pick up after water soak and the article passes the gasoline soak test. The article additionally comprising a plate of metal or ceramic exhibits minimal or even no delamination of the fibrous layers after ballistic attack, whereas an article of the same construction but with a matrix material without tackifier exhibits interior delamination of the fibrous layers.
摘要翻译:提供了一种防弹制品,其包括多个纤维层,每个所述层包括纤维网,其中根据ASTM D 7269-07的纤维具有至少800mN / tex(1100MPa)的强度,并且基质 材料,其中所述基质材料包括包含至少一种自交联丙烯酸树脂和/或至少一种可交联丙烯酸树脂的混合物和至少一种增粘剂。 与不具有增粘剂的基质材料相比,具有相同结构的物品,但是根据本发明的制品在未老化和老化状态下的纤维层之间具有较高的附着力,并且在水浸泡后的较低的水吸收量,并且制品通过 汽油浸泡试验。 另外包括金属或陶瓷板的物品在弹道攻击之后表现出最小或甚至没有纤维层的分层,而具有相同结构但是没有增粘剂的基体材料的制品表现出纤维层的内部分层。
摘要:
A porous, carbonaceous body for use in respiratory protection is produced by making a slurry of carbonaceous powder such as carbon black, a polymeric binder such as polyvinyl alcohol and a solvent, drying and grinding the slurry to yield a ground powder, compacting the powder and heat treating the resulting green body. Alternatively, the slurry is only partially dried to produce a paste, which is compacted and then heat treated. A reactive monomer (plasticizer of cross-linking agent) can be added to the polymeric binder.
摘要:
Coating composition includes curable epoxy resin in solid form, curing agent for the epoxy resin, and filler. Further, there is a polyolefin containing component having a compatibilizer polymer that is a modified polyolefin, a mixture of a polyolefin or olefin copolymer with a functionalized rubber, or both. The modified polyolefin and functionalized rubber contain groups reactive with either the epoxy resin or the epoxy curing agent. A polyolefin-based portion that amounts to at least 50% by weight of the polyolefin containing component, and an epoxy-based portion that amounts to at least 50% by weight of the curable epoxy resin have viscosities such that the difference between the viscosity of the polyolefin-based portion and the viscosity of the epoxy-based portion, expressed as a percentage based on the lower of the two viscosities, is less than 40%. These viscosities are measured by ASTM D4440 at the Vicat softening points, as measured by ASTM D 1525.
摘要翻译:涂料组合物包括固体形式的可固化环氧树脂,环氧树脂固化剂和填料。 此外,存在具有改性聚烯烃的增容剂聚合物,聚烯烃或烯烃共聚物与官能化橡胶的混合物或两者的含聚烯烃的组分。 改性聚烯烃和官能化橡胶含有与环氧树脂或环氧固化剂反应的基团。 相当于含聚烯烃成分的至少50重量%的聚烯烃部分和相当于可固化环氧树脂的至少50重量%的环氧基部分,其粘度使得粘度 基于聚烯烃的部分和基于两个粘度中较低的百分比表示的环氧基部分的粘度小于40%。 这些粘度通过ASTM D4440在维卡软化点测量,如通过ASTM D 1525测量的。
摘要:
The invention relates to an improved composite used as a bipolar separator plate in fuel cells. The composite of the invention comprises a steel substrate having a carbon coating thereon, the carbon coating comprises a carbon layer derived by pyrolysis of an acetylenic polymer having a content of carbon of at least 90%, the carbon layer protects the substrate against corrosion and improves long term contact resistivity, the polymer is soluble at a temperature below 110° C. in an organic solvent, and the carbon layer contacts said steel substrate. A process for preparing the composite according to the invention is also disclosed.