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A kind of textile hydrostatic pressure resistant silicone coating glue and preparation method thereof
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A technology of silicone coating glue and hydrostatic pressure resistance, which is applied in the direction of textiles and papermaking, and can solve problems such as weight gain of fabrics, poor hydrostatic pressure resistance of fabrics, and whitening of the film.
Active Publication Date: 2021-12-28
LIAONING FIXED STAR FINE CHEM
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From the test results, the hydrostatic pressure resistance of the coated fabric is relatively poor, and only the coating effect on pure cotton fabrics is tested, and the application of coatings and effects on chemical fiber fabrics is not mentioned. and the relationship between the weight gain of the fabric after coating and the hydrostatic pressure resistance; moreover, the organic / inorganic nano hollow microsphere material used in this invention will increase the viscosity of the coating after the addition of the coating, and the adhesive film will obviously develop after coating. White
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0036] (1) Preparation of coating agent
[0037] Add 35 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 5 million mPa·s, 5 parts of methyl MQ silicone resin with an M / Q value of 0.6, and 60 parts of toluene into a stainless steel kettle, and stir for 3 hours to mix well;
[0039]Add 4 parts of cross-linking agent γ-(2,3-glycidoxy) propyltrimethoxysilane to the coating agent, stir evenly; then add 3 parts of catalyst dibutyltin dilaurate, stir evenly; then add appropriate amount Stir the toluene evenly to adjust the viscosity to 35000mPa·s.
Embodiment 2
[0041] (1) Preparation of coating agent
[0042] Add 33 parts of α,ω-dihydroxy polydimethylsiloxane with a viscosity of 5 million mPa·s, 6 parts of methyl MQ silicone resin with an M / Q value of 0.6, and 61 parts of toluene into a stainless steel kettle, and stir for 3 hours to mix well;
[0043] (2) Coating adhesive preparation
[0044] Add 3 parts of cross-linking agent methyltrimethoxysilane and 2 parts of γ-(2,3-epoxypropoxy)propyltrimethoxysilane to the coating agent, stir evenly; then add catalyst dibutyltin diacetate 2 part, and stir evenly; then add an appropriate amount of toluene and stir evenly, and adjust the viscosity to 30000mPa·s.
Embodiment 3
[0046] (1) Preparation of coating agent
[0047] Add 30 parts of α,ω-dihydroxypolydimethylsiloxane with a viscosity of 5 million mPa·s, 8 parts of methyl MQ silicone resin with an M / Q value of 0.6, and 62 parts of toluene into a stainless steel kettle, and stir for 2 hours to mix well;
[0048] (2) Coating adhesive preparation
[0049] Add 3 parts of crosslinking agent methyltriethoxysilane and 1 part of γ-aminopropyltriethoxysilane to the coating agent, and stir evenly; then add 4 parts of catalyst bismuth isooctanoate, and stir evenly; Stir the toluene evenly to adjust the viscosity to 25000mPa·s.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
A hydrostatic pressure-resistant siliconecoatingadhesive for textiles and a preparation method thereof of the present invention comprise 25-35 parts of α,ω-dihydroxypolydimethylsiloxane, 3-8 parts of methyl MQ silicone resin, and 60 parts of toluene -70 parts, 3-5 parts of cross-linking agent, 2-4 parts of catalyst, the viscosity is 25000-40000mPa·s; the viscosity range of α, ω-dihydroxypolydimethylsiloxane is 5 million-1000 10,000 mPa·s; the molar ratio M / Q of the M component to the Q component of the methyl MQ silicone resin is 0.6-0.8. Coating directly on non-waterproof cotton, polyester, nylon and other fabrics, so that the fabric can obtain good hydrostatic pressure resistance, and has good washability. After coating, the fabric feels highly elastic and crisp, and has Good anti-slip properties.
Description
technical field [0001] The invention relates to the technical field of textilecoatingprocessing, in particular to a hydrostatic pressure-resistant silicone coating glue for textiles and a preparation method thereof. Coating and finishing the textiles through this coating glue makes the textiles achieve good hydrostatic pressure resistance and have better washing resistance. Background technique [0002] Fabric (textile) coating glue refers to a high molecular polymer that is evenly coated on the surface of the fabric and can form a continuous film. After coating and finishing, the fabric can obtain unique style, appearance, feel and various special functions, which can significantly increase the added value of the product. [0003] Currently commonly used fabric coating adhesives are mainly divided into several categories such as polyacrylates, polyurethanes, and silicones. [0004] Silicone coating adhesives have been widely used in the textile industry due to their exc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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