Environment-friendly water-based latex coagulator and preparation method of rubber coating product

A water-based latex and rubber coating technology, applied in textiles and papermaking, gloves, clothing, etc., can solve the problems of flammable and explosive production workers' bodies, environmental pollution, and hazards

Active Publication Date: 2021-07-30
SHANDONG XINGYU GLOVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an environmentally friendly water-based latex coagulant, which solves the potential problems of inflammability and explosion in the existing methanol (or acetone) coagulant and the health of production workers. Hazards, environmental pollution and other technical issues

Method used

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  • Environment-friendly water-based latex coagulator and preparation method of rubber coating product
  • Environment-friendly water-based latex coagulator and preparation method of rubber coating product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Present embodiment is a kind of technology that utilizes novel environment-friendly water-based latex coagulant to prepare nitrile coated gloves, and it comprises steps:

[0042] S1: 20 parts by mass of acrylamide (gel monomer), 2 parts by mass of ammonium persulfate (initiator), 2 parts by mass of ferrous chloride (reducing agent), 5 parts by mass of N, N-methylenebispropylene Amide (crosslinking agent), 1 mass part of sodium carboxymethylcellulose (thickener), 3 mass parts of calcium chloride (destabilizer), 67 mass parts of water are mixed, and the pH is adjusted with ammonia water (neutralizer) Stir evenly at 9.30°C to prepare a new type of environmentally friendly water-based coagulant.

[0043] S2: put the polyester flat glove embryo on the hand mold, and raise the temperature to 80°C.

[0044] S3: Soak the glove embryo heated in S2 with the coagulant in S1, shake the water 10 times, and homogenize the water for 3 minutes.

[0045] S4: impregnation with pre-vulc...

Embodiment 2

[0050] Present embodiment is a kind of technology that utilizes novel environment-friendly water-based latex coagulant to prepare natural rubber wrinkled gloves, and it comprises steps:

[0051] S1: 25 parts by mass of acrylamide (gel monomer), 3 parts by mass of ammonium persulfate (initiator), 3 parts by mass of ferrous chloride (reducing agent), 5 parts by mass of N, N-methylenebispropylene Amide (crosslinking agent), 1 part by mass of sodium polyacrylate (thickener), 3 parts by mass of calcium nitrate (destabilizer), and 60 parts by mass of water are mixed, 0.5 part of sodium hydroxide is used to adjust the pH to 7, and stirred at 30°C Evenly, a new type of environmentally friendly water-based coagulant is prepared.

[0052] S2: put the polyester flat glove embryo on the hand mold, and raise the temperature to 70°C.

[0053] S3: Soak the glove embryo heated in S2 with the coagulant in S1, shake the water 10 times, and homogenize the water for 3 minutes.

[0054] S4: impr...

Embodiment 3

[0060] Present embodiment is a kind of technology that utilizes novel environment-friendly water-based latex coagulant to prepare natural rubber coated gloves, and it comprises steps:

[0061] S1: 20 parts by mass of vinyl alcohol (gel monomer), 1.5 parts by mass of ammonium persulfate (initiator), 2 parts by mass of ferrous chloride (reducing agent), 5 parts by mass of N, N-methylenebispropylene Amide (crosslinking agent), 2 parts by mass of sodium polyacrylate (thickener), 2 parts by mass of calcium nitrate (destabilizer), and 67.5 parts by mass of water are mixed, 0.5 part of sodium hydroxide is used to adjust the pH to 7, and stirred at 30°C Evenly, a new type of environmentally friendly water-based coagulant is prepared.

[0062] S2: Put the polyester fully and half-soaked glove embryo on the hand mold, and raise the temperature to 80°C.

[0063] S3: soak the glove embryos heated in S2 with the coagulant in S1, shake the water 20 times, and homogenize the water for 4 min...

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Abstract

The invention relates to an environment-friendly water-based latex coagulator, which is prepared from the following components in parts by mass: 0.1 to 50 parts of a gel monomer, 0.01 to 20 parts of an initiator, 0.01 to 20 parts of a reducing agent, 0.01 to 20 parts of a cross-linking agent, 0.01 to 50 parts of a neutralizing agent, 0.01 to 40 parts of a destabilizing agent, 0.01 to 30 parts of a thickening agent and 1 to 80 parts of water, and the gel monomer is a natural or synthetic compound, and can be combined into a three-dimensional network-shaped water-soluble or hydrophilic molecule through one or more of hydrogen bonds, hydrophobic interaction, chain entanglement, metal coordination complexation and covalent bonds. The coagulator takes water as a basic solvent, is environment-friendly, safe, non-toxic and low in cost, is equivalent to calcium methoxide coagulators in treatment temperature and process conditions during use, does not need high-temperature treatment, does not have high-temperature-resistant requirements on glove blanks, and is very ideal in universality and substitutability.

Description

technical field [0001] The invention relates to the technical field of preparation of dipped latex products, in particular to an environment-friendly water-based latex coagulant and a method for preparing rubber-coated products. Background technique [0002] The production process of general impregnated labor protection gloves is: pre-drying of glove embryos - soaking coagulant - dipping in latex - pre-drying - washing - vulcanization and drying. At this stage, the commonly used latex coagulant is methanol (acetone) solution and calcium nitrate, It is compounded with calcium chloride and acetic acid. Among such coagulants, methanol (acetone) is not only easy to volatilize, but also pollutes the environment, and the long-term contact and inhalation of the human body will cause great damage to the nervous system, respiratory system and vision of the human body. At the same time, due to the flammability of methanol, it is easy to cause safety accidents such as fires and explos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/15C08F220/56C08F222/38C08F216/06C08F220/10C08F251/00C08F212/36D06N3/00D06N3/04D06N3/06D06N3/10D06N3/14
CPCC08C1/15C08F220/56C08F220/10C08F216/06C08F251/00D06N3/10D06N3/06D06N3/14D06N3/04D06N3/0061D06N2211/103C08F222/385C08F212/36
Inventor 周海涛孙永峰台宝泉
Owner SHANDONG XINGYU GLOVES
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