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Sizing agent composition for ramie fabric and preparing method and application thereof

A composition and fabric technology, applied in the directions of plant fibers, textiles and papermaking, improved hand-feeling fibers, etc., can solve the problems of difficult operation, inconvenient for industrial production, and laboratory experiments, and achieve good permeability and improve sizing. Good performance, good water solubility

Active Publication Date: 2016-09-07
江苏品源知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Emulsion polymerization demulsification method: first use emulsion polymerization to obtain a polyacrylate emulsion with a glass transition temperature > 37 ° C, and then use Na 2 SO 4 or concentrated H 2 SO 4 Demulsification; this method is difficult to operate in a small laboratory test, and it is not convenient for industrial production

Method used

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  • Sizing agent composition for ramie fabric and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Preparation of solid acrylate:

[0047] Add 100kg of hydrogenated polybutadiene di(meth)acrylate, 150kg of 1-adamantane (meth)acrylate and 250kg of methacrylic acid-2-ethyl sulfonate into the head tank, stir evenly and set aside;

[0048] Add 200kg of xylene, 100kg of cyclohexane, and 100kg of absolute ethanol to a 1000L high-level tank with stirring, mix well, weigh 5.6kg of benzoyl peroxide and 2.8kg of azobisisobutyronitrile and put them into the high-level tank respectively, and stir Uniform spare;

[0049] Add 1400kg of toluene, 700kg of cyclohexane, and 700kg of absolute ethanol in turn to the 5000L glass-lined reactor equipped with a reflux condenser and mix them uniformly as a solvent for the reaction, then add 0.1kg of xanthate, 0.2kg of sodium bisulfite and Stir 0.1kg of n-dodecanethiol evenly, raise the temperature to 95°C, and drop the monomers and initiators in the above two high level tanks into the 5000L reaction kettle at the same time, and the addi...

Embodiment 2

[0055] (1) Preparation of solid acrylate:

[0056] Add 200kg of hydrogenated polybutadiene di(meth)acrylate, 100kg of 1-adamantane (meth)acrylate and 200kg of methacrylic acid-2-ethyl sulfonate into the head tank, stir evenly for later use;

[0057] Add 200kg of xylene, 100kg of cyclohexane, and 100kg of absolute ethanol to a 1000L high-level tank with stirring, mix well, weigh 5.6kg of benzoyl peroxide and 2.8kg of azobisisobutyronitrile and put them into the high-level tank respectively, and stir Uniform spare;

[0058] Add 1400kg of toluene, 700kg of cyclohexane, and 700kg of absolute ethanol in turn to the 5000L glass-lined reactor equipped with a reflux condenser and mix them uniformly as a solvent for the reaction, then add 0.2kg of xanthate, 0.1kg of sodium bisulfite and Stir 0.1kg of n-dodecanethiol evenly, raise the temperature to 95°C, and drop the monomers and initiators in the above two high level tanks into the 5000L reaction kettle at the same time, and the addi...

Embodiment 3

[0064] (1) Preparation of solid acrylate:

[0065] Add 120kg hydrogenated polyisoprene di(meth)acrylate, 170kg norbornyl (meth)acrylate and 210kg methacrylic acid-2-ethyl sulfonate into the head tank, stir evenly for subsequent use;

[0066]Add 200kg of xylene, 100kg of cyclohexane, and 100kg of absolute ethanol to a 1000L high-level tank with stirring, mix well, weigh 5.6kg of benzoyl peroxide and 2.8kg of azobisisobutyronitrile and put them into the high-level tank respectively, and stir Uniform spare;

[0067] Add 1400kg of toluene, 700kg of cyclohexane, and 700kg of absolute ethanol in turn to the 5000L glass-lined reactor equipped with a reflux condenser and mix them uniformly as a solvent for the reaction, then add 0.1kg of xanthate, 0.2kg of sodium bisulfite and Stir 0.1kg of n-dodecanethiol evenly, raise the temperature to 95°C, and drop the monomers and initiators in the above two high level tanks into the 5000L reaction kettle at the same time, and the addition is c...

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Abstract

The invention relates to a sizing agent composition for ramie fabric and a preparing method and application thereof. The composition is formed by mixing an acrylic ester composition and nanometer SiO2 composite modified starch. The acrylic ester composition is composed of one or more (methyl) acrylic ester compounds (A) selected from (methyl) acrylic ester modified silicone oil, alkyl (methyl) acrylic ester provided with alkyl with the number of carbon atoms being over 12, and poly alkylene (diol) (methyl) acrylic ester with the number-average molecular weight being over 400, a (methyl) acrylic ester compound (B) in ester linkage with alicyclic alkyl with the number of carbon atoms being over 6, methacrylic acid-2-sulfoacid ethyl ester (C), a composite initiator (D) and a chain transfer agent (E). The nanometer SiO2 composite modified starch is prepared in the mode that the starch is subjected to acidification, cross linking and oxidation, nanoscale SiO2 subjected to surface modification is introduced, and then ultrasonic dispersion is carried out. The sizing agent can improve the warp sizing performance obviously and improve spinning efficiency, and is suitable for warp sizing of the ramie fabric.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a size composition for ramie fabrics, a preparation method and application thereof. Background technique [0002] There are four main types of size widely used for textile sizing: modified starch, polyvinyl alcohol, polyester and polyacrylate size. Modified starch sizing has good film-forming properties, strong affinity with natural fibers, and is easy to desizing. It is the main sizing component of textile sizing; not enough. Polyvinyl alcohol size film has high strength, good flexibility, and good slurry fluidity; however, polyvinyl alcohol is difficult to desizing, and because polyvinyl alcohol is difficult to degrade, it is easy to cause white environmental pollution, and the European Union has banned its use by legislation. The chemical structure of polyester size is similar to that of polyester, so it has strong affinity with polyester fiber, especially suitable for poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/11D06M11/79D06M15/263D06M101/06
CPCD06M11/79D06M15/11D06M15/263D06M2101/06D06M2200/35D06M2200/50
Inventor 缪建良
Owner 江苏品源知识产权运营有限公司
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