摘要:
A method of preparing a vinyl collagen microsphere polyamide fiber composite material includes the following steps: step 1: modifying a collagen with methacrylic anhydride to obtain a vinyl collagen, then emulsifying and cross-linking the vinyl collagen to obtain vinyl collagen microspheres; step 2: treating a polyamide fiber substrate with formaldehyde to obtain a hydroxylated polyamide fiber substrate, treating the hydroxylated polyamide fiber with (3-mercaptopropyl)trimethoxysilane (MPS) to obtain a sulfhydrylated polyamide fiber substrate; and step 3: modifying the sulfhydrylated polyamide fiber substrate with the vinyl collagen microspheres to obtain the vinyl collagen microsphere polyamide fiber composite material.
摘要:
The present invention relates to an apparatus of manufacturing an aerogel sheet. The apparatus of manufacturing the aerogel sheet includes: a plurality of fixing vessels into which a fiber sheet is inserted; and an impregnation vessels provided with an accommodation part in which the plurality of fixing vessels are stacked in multistage and a silica precursor injection part which injects a silica precursor into the accommodation part to impregnate the silica precursor into the fiber sheet inserted into each of the fixing vessels.
摘要:
The present disclosure relates to a fiber suitable for packaging. The fiber comprises a photocatalyst and optionally, a silicon containing linker. The photocatalyst is bonded to the fiber by means of a first functional group pre-present on the fiber and optionally, a second functional group generated by a silicon containing linker. The chemical bonding between the fiber and the photocatalyst imparts durability and wash ability to the fiber. A packaging material prepared using the fiber of the present disclosure can be used for the storage of plant produce.
摘要:
The present disclosure relates to a fiber suitable for packaging. The fiber of the present disclosure comprises a photocatalyst bonded to it by means of a first functional group generated by a surface modifying agent and optionally, a second functional group generated by a silicon containing linker. The chemical bonding between the fiber and the photocatalyst imparts durability and wash ability to the fiber. A packaging material prepared using the fiber of the present disclosure can be used for the storage of plant produce.
摘要:
A process of fabricating the composition coating may include selecting a textile material substrate, utilizing a sol-gel comprising a silane or silane derivative and metal oxide precursor to coat the substrate, and optionally coating the substrate with a hydrophobic chemical agent and/or other chemical agents to create a surface with nanoscopic or microscopic features. The process may utilize an all solution process or controlled environment for fabricating a composition coating that prevent wetting or staining of a substrate. The composition coatings for treating textile materials improve soil-resistance and stain-resistance of the textile materials. The composition coatings and their use for treating textile materials can also impart water repellency, oil repellency, ease of cleaning stains and removing particulates. In addition, the composite solution may impart additional properties such as physical strength to the textile whilst retaining the original appearance.
摘要:
A surface reforming method capable of efficiently carrying out a sustainable, even reforming treatment on a prescribed surface part of an element, a surface treatment liquid to be employed for the above-described method, and an element having a reformed surface treated by the above-described method. A part of the surface of an element is subjected to the reforming treatment by providing the object surface with a polymer, which is different from a constituent material of the objet surface and comprises a first part having a functional group and a second part having an interfacial energy different from that of the functional group and approximately equal to the surface energy of the object surface and orienting the second part of the polymer toward the object surface and orienting the first part in a direction different from the object surface.
摘要:
A composition for the permanent hydrophilation of polyolefin fibers and filaments and non-woven textile articles (non-wovens) produced therefrom, contains 15 to 75 parts by weight of at least one non-ionic surfactant, and 25 to 85 parts by weight of at least one quaternary ammonium compound and/or at least one cationically modified polydimethyl siloxane. The composition has excellent permanent hydrophilating properties, an excellent cohesion effect and good antistatic properties. When diluted with water, these compositions can therefore be used particularly satisfactorily as spinning preparations for the permanent hydrophilic finishing of polyolefin fibers, polyolefin filaments and non-wovens produced therefrom, in particular fleeces.
摘要:
The present invention is directed to sizing compositions for use on glass fibers which are used to reinforce lamination resins used in the formation of glass laminates. The sizing compositions contain a low molecular weight, polymer latex prepared by polymerizing at least one monomer(s) selected from the group consisting of acrylic acid, methacrylic acid, C.sub.1 -C.sub.18 alkyl esters of acrylic acid, C.sub.1 -C.sub.18 alkyl esters of methacrylic acid, glycidyl acrylate, glycidyl methacrylate, C.sub.1 -C.sub.4 hydroxyalkyl esters of acrylic acid, C.sub.1 -C.sub.4 hydroxyalkyl esters of methacrylic acid, vinyl esters of saturated aliphatic monocarboxylic acids containing up to 10 carbon atoms, (meth)acrylamide and their N-substituted derivatives, vinyl ethers, N-vinyl lactams, halogenated vinyl compounds, alkyl vinyl ketones, (meth)allyl ester of saturated aliphatic monocarboxylic acids, vinyl compounds such as vinyl pyrrole, olefins, diesters of itaconic, maleic and/or fumaric acid, and styrene. The polymers have a molecular weight effective to provide both improved wettability of the glass fibers by the lamination resins and improved clarity of reinforced glass laminates prepared from the sized glass fibers and the lamination resins, when compared to sizing compositions known heretofore. The invention is also directed to glass fibers treated with such compositions, and fiber-reinforced plastics prepared from such treated glass fibers.
摘要:
Chrome-free aqueous size compositions containing quanternary salts reduce fuzz and fly in glass fiber gun roving. The roving particularly achieves a desirable ease and completeness of chopping in conventional chopping and spraying equipment for molding operations.
摘要:
in which each R'', which may be identical or different, represents an alkyl group with 1 to 5 carbon atoms or a vinyl group, n is zero or 1 and R is as defined above and 5 to 25 parts of an organic derivative of titanium which is selected from an alkyl polytitanate, which is soluble in hydrocarbon solvents, having the average general formula TibOc(OR'''')d in which R'''' represents an alkyl group with 3 to 8 carbon atoms, b represents an integer of at least 2, c represents an integer of at least 1 and d represents an integer of at least 4, and a mixture consisting of at least 5 percent of a said aklyl polytitanate with an alkyl titanate, the alkyl group having 3 to 10 carbon atoms, and/or a titanium chelate.
Non-stick coating compositions are provided which are capable of being applied to a very wide range of substrates and which are stable in the atmosphere for 24 hours, the compositions being based on a dimethylpolysiloxane polymer and containing, per 100 parts by weight of the polymer, 1 to 15 parts of a silicate ester which is selected from an alkoxyalkyl silicate of the formula: Si((OCH2CH2)aOR)4 in which R represents an alkyl radical with 1 to 4 carbon atoms and a is 1 or 2, and a cyclic silicate of the formula: