Preparation method of aqueous emulsion type neoprene antioxidant system product

A chloroprene rubber and antioxidant technology, applied in the field of water emulsion type chloroprene rubber antioxidant system products, can solve the problems of low anti-aging efficiency of BHT, unsatisfactory anti-aging performance, adverse environmental effects, etc. Commercially traded, excellent anti-aging properties, less volatile and migration-loss effects

Inactive Publication Date: 2014-04-30
NANTONG HAILITE RUBBER & PLASTIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are unsatisfactory anti-aging performance, low anti-aging efficiency of BHT and adverse effects on the environment
Its shortcoming is the problem of using the anti-aging agent BHT. In addition, hydroxylamine hydrochloride is a water-soluble substance, which will be lost with the mother liquor during condensation, causing the pollution of wastewater discharge.
Its shortcoming is that toluene is used as a solvent to dissolve phenothiazine and BHT, which causes the problem of benzene pollution in discharged wastewater, the problem of using anti-aging agent BHT, and the use of phenothiazine as a terminator causes bad color of the glue sample
Its disadvantages are the use of toluene as a solvent to cause benzene pollution in waste water and the use of phenothiazine as a terminator to cause bad color of the glue sample
Its shortcoming is that it causes the problem of benzene pollution in waste water and the bad color of glue samples.
Its disadvantages are the problem of benzene pollution and the bad color of glue samples
[0015] Chinese patent 201010562326.5 discloses a method for manufacturing a ternary compound anti-aging agent and emulsion and its application in the production of neoprene rubber. Emulsified to form an emulsion type anti-aging agent, there is a problem of benzene pollution

Method used

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  • Preparation method of aqueous emulsion type neoprene antioxidant system product
  • Preparation method of aqueous emulsion type neoprene antioxidant system product
  • Preparation method of aqueous emulsion type neoprene antioxidant system product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] At room temperature, weigh 10kg of antioxidant Wingstay-L, 0.05kg of phenothiazine, and 0.5kg of hydroxylamine compound, stir and mix well; use a STJ100 flat jet mill to make a fine powder functional antioxidant with an average particle size of 10 μm; weigh Take 10kg of fine powder functional antioxidant, 0.025kg of surfactant, 0.05kg of dispersant, 0.005kg of wetting agent, and 10kg of deionized water into a WMB10R pin-type sand mill to make a suspension-type water with an average particle size of 1 μm. Emulsion, that is, the 1# antiaging agent of the present invention.

Embodiment 2

[0045] At room temperature, weigh 10kg of antioxidant Wingstay-L, 0.3kg of phenothiazine, and 0.6kg of hydroxylamine compound, stir and mix well; use a STJ100 flat jet mill to make a fine powder functional antioxidant with an average particle size of 50 μm; weigh Take 10kg of fine powder functional antioxidant, 0.03kg of surfactant, 0.08kg of dispersant, 0.008kg of wetting agent, and 10kg of deionized water into a WMB10R pin-type sand mill to make a suspension-type water with an average particle size of 2 μm. Emulsion, that is, the 2# antiaging agent of the present invention.

Embodiment 3

[0047] At room temperature, weigh 10kg of antioxidant Wingstay-L, 0.2kg of phenothiazine, and 0.1kg of hydroxylamine compound, stir and mix well; use a STJ100 flat jet mill to make a fine powder functional antioxidant with an average particle size of 100 μm; weigh Take 10kg of fine powder functional antioxidant, 0.05kg of surfactant, 0.1kg of dispersant, 0.01kg of wetting agent, and 10kg of deionized water into a WMB10R pin-type sand mill to make a suspension-type water with an average particle size of 3 μm. Emulsion, that is, the 3# antiaging agent of the present invention.

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Abstract

The invention relates to a preparation method of aqueous emulsion type neoprene antioxidant system product, which belongs to the field of adhesive technology. The invention chooses p-cresol and dicyclopentadiene butyl reactant as the main antioxidant to coordinate with the composite termination agent made from phenothiazine and N,N-dialkyl hydroxylamine compound to produce a functional antioxidant. With the adoption of the suspension producing process and powder grinding and emulsifying equipment, the functional antioxidant is further produced into an aqueous emulsion type neoprene antioxidant system product. Adding 0.75-1.89% of aqueous emulsion type neoprene antioxidant system product provided by the invention in the process of preparing a neoprene product sample, the appearance and color,mooney viscosity, peeling strength, viscosity performance indexes of the solution are relatively stable in a hot air aging test under the temperature of 70 DEG C.

Description

technical field [0001] The invention adopts a suspension production process to prepare an aqueous emulsion type chloroprene rubber antioxidant system product, which is used to improve the stability of synthetic chloroprene rubber products and belongs to the technical field of adhesives. Background technique [0002] Chloroprene rubber is a polymer obtained by homopolymerization or copolymerization with 2-chloro-1,3-butadiene as the main raw material. Low-temperature chloroprene rubber exhibits excellent adhesive properties due to its good crystallinity, so it is widely used in the field of adhesives. [0003] The mechanical properties of neoprene are determined by the microstructure of the polymer. The processing performance of raw rubber depends on the molar mass and molar mass distribution of the polymer, as well as the number of branches and cross-links; the storage stability of raw rubber is poor, and aging occurs with the increase of storage time. The root cause is tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J111/00C09J11/08C09J11/06C08F36/18C08F2/42
Inventor 杜飞马龙刘飞秦键
Owner NANTONG HAILITE RUBBER & PLASTIC MACHINERY
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