[TAO, Youhua, ZONG, Baoning, WANG, Xianhong, LIU, Wei, CHEN, Jinlong] 22 Chaoyangmen North Street, Chaoyang District,, Beijing 100728, CN Disclosed is an antibacterial nylon 6 material, preparation method therefor and application thereof, the antibacterial nylon 6 material has a structure represented by formula (I), wherein each R＜sub＞1＜/sub＞ group and each R＜sub＞2＜/sub＞ group are independently selected from the group consisting of C＜sub＞1-24＜/sub＞ linear or branched aliphatic hydrocarbyl groups, substituted or unsubstituted C＜sub＞3-12＜/sub＞ alicyclic hydrocarbyl groups, substituted or unsubstituted C＜sub＞6-18＜/sub＞ aryl groups and substituted or unsubstituted C＜sub＞7-30＜/sub＞ aralkyl groups, or the R＜sub＞1＜/sub＞ and R＜sub＞2＜/sub＞ groups on the same nitrogen atom, together with the attached N atom, form a 5-7 membered saturated or unsaturated heterocyclic ring; each R＜sub＞3＜/sub＞ group is independently selected from the group consisting of hydrogen (H), C＜sub＞1-24＜/sub＞ linear or branched aliphatic hydrocarbyl groups, substituted or unsubstituted C＜sub＞3-12＜/sub＞ alicyclic hydrocarbyl groups, substituted or unsubstituted C＜sub＞6-18＜/sub＞ aryl groups, and substituted or unsubstituted C＜sub＞7-30＜/sub＞ aralkyl groups; x is in a range of 0.02-0.30; y is in a range of 0.70-0.98, and x + y = 1. The antibacterial nylon 6 material has a broad-spectrum and high antibacterial effect, and a good antibacterial durability, and can be widely used in textiles, daily necessities, building materials, packaging materials, various panels and the like as a public health material. ＜chemistry id="chema01" num="0001"＞＜img id="ia01" file="imga0001.tif" wi="120" he="41" img-content="chem" img-format="tif" /＞＜/chemistry＞ ＜img id="iaf01" file="imgaf001.tif" wi="165" he="65" img-content="drawing" img-format="tif" /＞

[Youhua Tao, Maosheng Li] CN Changchun City The present application relates to a method of performing living cationic polymerization of monomers by supermolecular anion-binding catalysis. It uses various simple Bronsted acids or adducts thereof with a monomer as the cationic initiator, and various hydrogen bond donors as the catalyst for binding and dissociating counter anions dynamically, to living and controlled polymerize one or more cationically polymerizable monomers to form a homopolymer or a copolymer. In the present application, the hydrogen-bond donor can exert non-covalent anion-binding interactions to dynamically and reversibly activate dormant covalent bond under mild conditions, in turn to precisely control the equilibrium between dormant covalent precursors and active cationic species, thereby achieving the precise control of the polymer's molecular weight, distribution and end group structure, and solving the environment-unfriendly relevant problems in traditional metal-based Lewis acid catalysis, which include extreme low polymerization temperature, restrict anhydrous requirement of the reaction, strict purification requirement of the monomer and catalysis-initiating system, metal residue in polymer or the like.

[WANG, Youhua 王攸华, JIN, Junye 靳俊叶, ZHANG, Kai 张凯, XU, Tao 徐涛, WANG, Xin 王鑫] Huawei Administration Building 中国广东省深圳市龙岗区坂田华为总部办公楼, Guangdong 518129Bantian, Longgang DistrictShenzhen, Guangdong 518129 The present application relates to the field of valves, and in particular to a solenoid valve and an apparatus. The solenoid valve comprises: a valve body, which has an accommodating cavity; a magnetic yoke, which is arranged in the accommodating cavity and has a mounting groove; a coil winding, which is arranged in the mounting groove; a valve core assembly, which is arranged in the accommodating cavity and comprises a moving coil winding; and a multi-stable element, an outer peripheral end of the multi-stable element being connected to the valve body, an inner peripheral end of the multi-stable element being connected to the valve core assembly, and the multi-stable element being provided with at least a steady-state site for positioning the valve core assembly. When the coil winding is powered on, the magnetic yoke can attract the valve core assembly, and the valve core assembly drives the multi-stable element to deform to the steady-state site, such that the valve core assembly blocks or unblocks a gas path of the solenoid valve; and when the valve core assembly moves, the moving coil winding can generate a magnetic field, and the magnetic field generated by the moving coil winding can interact with a magnetic field generated by the coil winding, so as to detect a signal change of the coil winding.

[Youhua TAO, Baoning ZONG, Xianhong WANG, Wei LIU, Jinlong CHEN] CN Beijing An antibacterial nylon 6 material of formula (I), preparation method therefor and application thereof are provided. In formula (I), each R1 group and each R2 group are independently selected from the group consisting of C1-24 linear or branched aliphatic hydrocarbyl groups, substituted or unsubstituted C3-12 alicyclic hydrocarbyl groups, substituted or unsubstituted C6-18 aryl groups and substituted or unsubstituted C7-30 aralkyl groups, or the R1 and R2 groups on the same nitrogen atom, together with the attached N atom, form a 5-7 membered saturated or unsaturated heterocyclic ring; each R3 group is independently selected from the group consisting of hydrogen (H), C1-24 linear or branched aliphatic hydrocarbyl groups, substituted or unsubstituted C3-12 alicyclic hydrocarbyl groups, substituted or unsubstituted C6-18 aryl groups, and substituted or unsubstituted C7-30 aralkyl groups; x is in a range of 0.02-0.30; y is in a range of 0.70-0.98, and x+y=1.

[TAO, Youhua 陶友华, ZONG, Baoning 宗保宁, WANG, Xianhong 王献红, LIU, Wei 刘伟, CHEN, Jinlong 陈金龙] 22 Chaoyangmen North Street, Chaoyang District 中国北京市朝阳区朝阳门北大街22号, Beijing 100728Beijing 100728;Zone 3, No. 18 Xueyuan Road, Haidian District 中国北京市海淀区学院路18号三区, Beijing 100083Beijing 100083 Disclosed are an antibacterial nylon 6 material, a preparation method therefor, and an application thereof. The antibacterial nylon 6 material has a structure as shown in formula (I), wherein each R1 group and each R2 group are independently selected from a C1-24 straight-chain or branched-chain aliphatic hydrocarbon group, a substituted or unsubstituted C3-12 alicyclic hydrocarbon group, a substituted or unsubstituted C6-18 aryl, and a substituted or unsubstituted C7-30 aralkyl group, or R1 and R2 groups on a same nitrogen atom and the N atom linked to same together form a 5-7 membered saturated or unsaturated heterocycle; each R3 group is independently selected from hydrogen (H), a C1-24 straight-chain or branched-chain aliphatic hydrocarbon group, a substituted or unsubstituted C3-12 alicyclic hydrocarbon group, a substituted or unsubstituted C6-18 aryl, and a substituted or unsubstituted C7-30 aralkyl group; x is within a range of 0.02-0.30; and y is within a range of 0.70-0.98, and x+y=1. The antibacterial nylon 6 material has a broad-spectrum and efficient antibacterial effect, is lasting in antibacterial effect, and can be widely applied to textiles, daily supplies, building materials, packaging materials, various panels, etc. as public health materials.

[WANG, Youhua, JIN, Junye, ZHANG, Kai, XU, Tao, WANG, Xin] Huawei Administration Building Bantian Longgang District, Shenzhen, Guangdong 518129, CN This application relates to the valve field, and in particular, to a solenoid valve and a device. The solenoid valve includes: a valve body, where the valve body has an accommodating cavity; a magnet yoke, where the magnet yoke is disposed in the accommodating cavity, and the magnet yoke has a mounting groove; a coil winding, where the coil winding is disposed in the mounting groove; a valve plug assembly, where the valve plug assembly is disposed in the accommodating cavity, and the valve plug assembly includes a movable coil winding; and a multistable element, where an outer circumferential end of the multistable element is connected to the valve body, an inner circumferential end of the multistable element is connected to the valve plug assembly, and at least one steady-state position is disposed on the multistable element to position the valve plug assembly. When the coil winding is powered on, the magnet yoke can attract the valve plug assembly, and the valve plug assembly drives the multistable element to deform to the steady-state position, so that the valve plug assembly blocks or opens an air path of the solenoid valve. When the valve plug assembly moves, the movable coil winding can generate a magnetic field, and the magnetic field generated by the movable coil can interact with a magnetic field generated by the coil winding, to detect a signal change of the coil winding.＜img id="iaf01" file="imgaf001.tif" wi="53" he="44" img-content="drawing" img-format="tif" /＞