Preparation method of reusable TPU degreasing cloth

A technology of oil stains and fabrics, applied in the field of TPU, can solve the problems of losing the function of removing oil stains, falling surfactants, and inability to use for a long time, achieving long service life, avoiding falling off, and being environmentally friendly.

Active Publication Date: 2022-01-28
东莞市米儿塑胶原料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface active agent will drop off during use of this degreasing cloth, and then gradually lose the function of degreasing. Its service life is 1 to 2 months, and it still cannot be used for a long time.

Method used

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  • Preparation method of reusable TPU degreasing cloth
  • Preparation method of reusable TPU degreasing cloth
  • Preparation method of reusable TPU degreasing cloth

Examples

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preparation example Construction

[0029] The present invention provides a kind of preparation method of reusable TPU degreasing dirt cloth, and this preparation method comprises:

[0030] In the first stage, an amphiphilic (hydrophilic and lipophilic) prepolymer is prepared:

[0031] Step 1. Put the long-chain surfactant, isocyanate, antioxidant, anti-yellowing agent and catalyst into the reaction vessel, raise the temperature to 85-95°C, and stir for more than 2 hours;

[0032] Step 2. Raise the temperature to 115-125°C and react for more than 0.5h to obtain the amphiphilic prepolymer;

[0033] The second stage, preparing TPU:

[0034] Step 3. Put the polymeric diol, amphiphilic prepolymer, 1,4BG (1,4 butanediol), isocyanate, antioxidant, anti-yellowing agent and catalyst into the reaction vessel, raise the temperature to 75-85°C, and stir More than 0.3h;

[0035] Step 4. Baking the material, the baking temperature is 95-105°C, and the baking time is more than 7 hours;

[0036] Step 5, after cooling, the ...

Embodiment 1

[0060] A kind of preparation method of reusable TPU degreasing cloth, this preparation method comprises:

[0061] The first stage, preparation of amphiphilic prepolymer:

[0062] Prepare the components according to the following weights:

[0063]

[0064]

[0065] Step 1. Put sodium 2,5-dihydroxy-4-n-dodecylbenzenesulfonate, MDI, 1010 antioxidant, UV-P and stannous octoate into a reaction vessel, raise the temperature to 90°C, and stir for 3 hours;

[0066] Step 2, heating up to 120°C and reacting for 1 hour to obtain an amphiphilic prepolymer;

[0067] The second stage, preparing TPU:

[0068] Prepare the components according to the following weights:

[0069]

[0070] Step 3. Put PEG-PPG copolymer, amphiphilic prepolymer, 1,4BG, MDI, 1010 antioxidant, UV-328 and stannous octoate into the reaction vessel, raise the temperature to 80°C, and stir for 0.5h;

[0071] Step 4. Pour the material on the tray coated with release agent, then put the tray into the oven, and...

Embodiment 2

[0078] A kind of preparation method of reusable TPU degreasing cloth, this preparation method comprises:

[0079] The first stage, preparation of amphiphilic prepolymer:

[0080] Prepare the components according to the following weights:

[0081]

[0082] Step 1. Put fatty alcohol polyoxyethylene ether, MDI, 1010 antioxidant, UV-P and stannous octoate into the reaction vessel, raise the temperature to 90°C, and stir for 3 hours;

[0083] Step 2, heating up to 120°C and reacting for 1 hour to obtain an amphiphilic prepolymer;

[0084] The second stage, preparing TPU:

[0085] Prepare the components according to the following weights:

[0086]

[0087]

[0088] Step 3. Put PEG, amphiphilic prepolymer, 1,4BG, MDI, 1010 antioxidant, UV-328 and stannous octoate into the reaction vessel, raise the temperature to 80°C, and stir for 0.5h;

[0089] Step 4. Pour the material on the tray coated with release agent, then put the tray into the oven, and bake the material at 100...

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

The invention discloses a preparation method of reusable TPU degreasing cloth, which comprises the steps of 1, putting a long-chain surfactant, isocyanate, an antioxidant, an anti-yellowing agent and a catalyst into a reaction container, heating to 85-95 DEG C, and stirring for 2 h or above; 2, heating to 115-125 DEG C, and reacting for 0.5 h or above to obtain an amphiphilic prepolymer; 3, adding polymeric diol, the amphiphilic prepolymer, 1,4BG, isocyanate, an antioxidant, an anti-yellowing agent and a catalyst into a reaction container, heating to 75-85 DEG C, and stirring for 0.3 h or above; 4, baking the materials, wherein the baking temperature ranges from 95 DEG C to 105 DEG C, and the baking time is 7 h or above; 5, crushing the cooled materials; 6, granulating the materials to form TPU; 7, performing melt-blowing treatment on the materials to form cloth; and 8, cutting the cloth to form the TPU degreasing cloth. The long-chain surfactant is bound by a hydrogen bond of TPU, so that the problem of falling can be effectively avoided; and the material is harmless to human bodies, and the problem of environmental pollution is avoided.

Description

technical field [0001] The invention relates to the field of TPU, in particular to a preparation method of a reusable TPU degreasing cloth. Background technique [0002] With the progress of society, people are more and more concerned about the health of the body. For the general detergent used for dish cleaning, after a large amount of use, it often remains on the dishes. Long-term consumption will damage the health of the human body, so it is necessary to develop its alternatives. Degreasing cloth, also known as degreasing cloth, is often used to remove oil stains in kitchens and kitchen utensils in daily life. The current degreasing cloth mainly adopts two methods of degreasing: [0003] The first one is made of a disposable oil-absorbing material to remove oil stains, and oil stains are removed through its oil-absorbing properties. Some factories, seaports and drilling platforms also use the above materials to remove oil stains. However, this kind of oil-removing cloth...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/75C08G18/73C08G18/66C08G18/48C08G18/32D04H1/54D04H1/551A47L13/16
CPCC08G18/73C08G18/7614C08G18/7671C08G18/755C08G18/751C08G18/4825C08G18/4833C08G18/4837C08G18/3206C08G18/6674A47L13/16D04H1/54D04H1/551
Inventor 贺平
Owner 东莞市米儿塑胶原料有限公司
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