CN110591049A - Permanent antistatic natural color polyurethane rubber roller - Google Patents
Permanent antistatic natural color polyurethane rubber roller Download PDFInfo
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- CN110591049A CN110591049A CN201910916436.8A CN201910916436A CN110591049A CN 110591049 A CN110591049 A CN 110591049A CN 201910916436 A CN201910916436 A CN 201910916436A CN 110591049 A CN110591049 A CN 110591049A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
- C08G18/6677—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention belongs to the technical field of polyurethane rubber rollers, and particularly relates to a permanent antistatic natural color polyurethane rubber roller, which is prepared from the following raw materials, by weight, 50 parts of polyethylene glycol, 2-5 parts of a wear-resisting agent, 5-10 parts of an antistatic agent, 5-10 parts of glycerol, 5-20 parts of lithium nitrate, 10-20 parts of lithium oxalate, 5-10 parts of ethanol, 5-15 parts of butanediol, 5-10 parts of lithium formate and 5-15 parts of diaminodiphenylmethane; a method for preparing permanent antistatic natural color polyurethane rubber roller includes such steps as adding glycerin into polyethanediol, heating to 130-; the invention compounds polyethylene glycol and organic lithium salt to prepare the reactive antistatic agent, the nature of polyurethane synthesized by the reactive antistatic agent is an ionic electrolyte, and the polyurethane rubber roller prepared by the reactive antistatic agent has the characteristics of permanent antistatic, no change of the primary color of polyurethane and capability of preparing a transparent rubber roller.
Description
Technical Field
The invention belongs to the technical field of polyurethane rubber rollers, and particularly relates to a permanent antistatic natural color polyurethane rubber roller.
Background
Polyurethane rubber is a rubber with excellent tensile strength, elasticity and elongation at break, and is often used for preparing special rubber rollers and wear-resistant products used in various papermaking and smelting industries.
The existing polyurethane rubber roller has the method for realizing antistatic treatment by adding conductive particles such as carbon black metal oxide and the like, but the rubber roller has a specific color; in another method, a surfactant antistatic agent is added, but the antistatic agent has poor effect in a low-humidity environment, and the antistatic agent is easy to precipitate and fall off, so that the antistatic effect is poor or no antistatic effect exists at the later stage of the service life of the rubber roller.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a permanent antistatic natural color polyurethane rubber roller which has the characteristics of no permanent antistatic property, no change of the original color of polyurethane and capability of preparing a transparent rubber roller.
In order to achieve the purpose, the invention provides the following technical scheme:
the permanent antistatic natural color polyurethane rubber roller is prepared from the following raw materials, by weight, 50 parts of polyethylene glycol, 2-5 parts of an anti-wear agent, 5-10 parts of an antistatic agent, 5-10 parts of glycerol, 5-20 parts of lithium nitrate, 10-20 parts of lithium oxalate, 5-10 parts of ethanol, 5-15 parts of butanediol, 5-10 parts of lithium formate and 5-15 parts of diaminodiphenylmethane.
The manufacturing method of the permanent antistatic natural color polyurethane rubber roller comprises the following steps:
s1, firstly adding glycerol into polyethylene glycol, and heating to 130-140 ℃;
s2, dehydrating for 1.5 hours under vacuum, heating to 130-140 ℃, dehydrating under vacuum, and repeating the steps for three times;
s3, when the temperature is reduced to 50-60 ℃, adding a wear-resisting agent, an antistatic agent, ethanol, butanediol and diaminodiphenylmethane, stirring for 1-2 hours, keeping the temperature at 70 ℃, and carrying out vacuum defoaming;
s4, adding lithium nitrate, lithium oxalate and lithium formate, pouring into a required mould, drying at 70-140 ℃ for 1-2 hours, and forming and demoulding;
s5, vulcanizing at 60-65 ℃ for 12-13 hours to obtain the product.
Preferably, the antistatic agent comprises the following raw materials in parts by weight: 60-80 parts of dipropyl phthalate, 4-7 parts of catalyst and 15-30 parts of organic solvent.
The preparation method of the antistatic agent comprises the following steps:
s1, adding the dipropyl phthalate, the catalyst and the organic solvent into a reaction kettle, and reacting at the temperature of 100 ℃ and 150 ℃ for 3-4 hours;
s2, putting alkali metal salt into a reaction kettle, and mixing to obtain the permanent antistatic agent.
Preferably, the anti-wear agent is a siloxane.
Compared with the prior art, the invention has the beneficial effects that:
the invention compounds polyethylene glycol and organic lithium salt to prepare the reactive antistatic agent, the nature of polyurethane synthesized by the reactive antistatic agent is an ionic electrolyte, and the polyurethane rubber roller prepared by the reactive antistatic agent has the characteristics of permanent antistatic, no change of the primary color of polyurethane and capability of preparing a transparent rubber roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides the following technical scheme: a permanent antistatic natural color polyurethane rubber roller is prepared from 50 parts by weight of polyethylene glycol, 2 parts by weight of an anti-wear agent, 5 parts by weight of an antistatic agent, 5 parts by weight of glycerol, 5 parts by weight of lithium nitrate, 10 parts by weight of lithium oxalate, 5 parts by weight of ethanol, 5 parts by weight of butanediol, 5 parts by weight of lithium formate and 5 parts by weight of diaminodiphenylmethane.
The manufacturing method of the permanent antistatic natural color polyurethane rubber roller comprises the following steps:
s1, firstly, adding glycerol into polyethylene glycol, and heating to 130 ℃;
s2, dehydrating for 1.5 hours under vacuum, heating to 130 ℃, dehydrating under vacuum, and repeating the steps for three times;
s3, when the temperature is reduced to 50 ℃, adding a wear-resisting agent, an antistatic agent, ethanol, butanediol and diaminodiphenylmethane, stirring for 1 hour, keeping the temperature at 70 ℃, and carrying out vacuum defoaming;
s4, adding lithium nitrate, lithium oxalate and lithium formate, pouring into a required mould, drying at 70 ℃ for 1 hour, and molding and demoulding;
s5, vulcanizing at 60 ℃ for 12 hours to obtain the product.
Specifically, the antistatic agent comprises the following raw materials in parts by weight: 60 parts of dipropyl phthalate, 4 parts of catalyst and 15 parts of organic solvent.
The preparation method of the antistatic agent comprises the following steps:
s1, adding dipropyl phthalate, a catalyst and an organic solvent into a reaction kettle, and reacting for 3 hours at the temperature of 100 ℃;
s2, putting alkali metal salt into a reaction kettle, and mixing to obtain the permanent antistatic agent.
Specifically, the anti-wear agent is siloxane.
In the embodiment, the polyethylene glycol and the organic lithium salt are compounded to prepare the reactive antistatic agent, the nature of polyurethane synthesized by the reactive antistatic agent is an ionic electrolyte, and the polyurethane rubber roller prepared by the reactive antistatic agent has the characteristics of no permanent antistatic property, no change of the primary color of polyurethane, capability of preparing a transparent rubber roller, short preparation method and high speed of the prepared polyurethane rubber roller.
Example 2
The invention provides the following technical scheme: a permanent antistatic natural color polyurethane rubber roller is prepared from 50 parts by weight of polyethylene glycol, 3 parts by weight of an anti-wear agent, 7 parts by weight of an antistatic agent, 7 parts by weight of glycerol, 13 parts by weight of lithium nitrate, 15 parts by weight of lithium oxalate, 7 parts by weight of ethanol, 12 parts by weight of butanediol, 7 parts by weight of lithium formate and 12 parts by weight of diaminodiphenylmethane.
The manufacturing method of the permanent antistatic natural color polyurethane rubber roller comprises the following steps:
s1, firstly, adding glycerol into polyethylene glycol, and heating to 135 ℃;
s2, dehydrating for 1.5 hours under vacuum, heating to 135 ℃, dehydrating under vacuum, and repeating the steps for three times;
s3, when the temperature is reduced to 55 ℃, adding the wear-resisting agent, the antistatic agent, the ethanol, the butanediol and the diaminodiphenylmethane, stirring for 1.5 hours, keeping the temperature at 70 ℃, and carrying out vacuum defoaming;
s4, adding lithium nitrate, lithium oxalate and lithium formate, pouring into a required mould, drying at 100 ℃ for 1.5 hours, and forming and demoulding;
s5, vulcanizing at 63 ℃ for 12.5 hours to obtain the product.
Specifically, the antistatic agent comprises the following raw materials in parts by weight: 70 parts of dipropyl phthalate, 5.5 parts of catalyst and 23 parts of organic solvent.
The preparation method of the antistatic agent comprises the following steps:
s1, adding dipropyl phthalate, a catalyst and an organic solvent into a reaction kettle, and reacting for 3.5 hours at the temperature of 125 ℃;
s2, putting alkali metal salt into a reaction kettle, and mixing to obtain the permanent antistatic agent.
Specifically, the anti-wear agent is siloxane.
In the embodiment, the polyethylene glycol and the organic lithium salt are compounded to prepare the reactive antistatic agent, the nature of the polyurethane synthesized by the reactive antistatic agent is an ionic electrolyte, and the polyurethane rubber roller prepared by the reactive antistatic agent has the characteristics of no permanent antistatic property, no change of the primary color of the polyurethane and capability of preparing a transparent rubber roller.
Example 3
The invention provides the following technical scheme: a permanent antistatic natural color polyurethane rubber roller is prepared from 50 parts by weight of polyethylene glycol, 5 parts by weight of an anti-wear agent, 10 parts by weight of an antistatic agent, 10 parts by weight of glycerol, 20 parts by weight of lithium nitrate, 20 parts by weight of lithium oxalate, 10 parts by weight of ethanol, 15 parts by weight of butanediol, 10 parts by weight of lithium formate and 15 parts by weight of diaminodiphenylmethane.
The manufacturing method of the permanent antistatic natural color polyurethane rubber roller comprises the following steps:
s1, firstly, adding glycerol into polyethylene glycol, and heating to 140 ℃;
s2, dehydrating for 1.5 hours under vacuum, heating to 140 ℃, dehydrating under vacuum, and repeating the steps for three times;
s3, when the temperature is reduced to 60 ℃, adding the wear-resisting agent, the antistatic agent, the ethanol, the butanediol and the diaminodiphenylmethane, stirring for 2 hours, keeping the temperature at 70 ℃, and carrying out vacuum defoaming;
s4, adding lithium nitrate, lithium oxalate and lithium formate, pouring into a required mould, drying for 2 hours at the temperature of 140 ℃, and forming and demoulding;
s5, vulcanizing at 65 ℃ for 13 hours to obtain the product.
Specifically, the antistatic agent comprises the following raw materials in parts by weight: 80 parts of dipropyl phthalate, 7 parts of catalyst and 30 parts of organic solvent.
The preparation method of the antistatic agent comprises the following steps:
s1, adding dipropyl phthalate, a catalyst and an organic solvent into a reaction kettle, and reacting for 4 hours at the temperature of 150 ℃;
s2, putting alkali metal salt into a reaction kettle, and mixing to obtain the permanent antistatic agent.
Specifically, the anti-wear agent is siloxane.
In the embodiment, the polyethylene glycol and the organic lithium salt are compounded to prepare the reactive antistatic agent, the nature of the polyurethane synthesized by the reactive antistatic agent is an ionic electrolyte, the polyurethane rubber roller prepared by the reactive antistatic agent has the characteristics of no permanent antistatic property, no change of the primary color of the polyurethane, capability of preparing a transparent rubber roller, longer preparation method and stable performance of the prepared polyurethane rubber roller.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A permanent antistatic natural color polyurethane rubber roller is characterized in that: the rubber is prepared from the following raw materials, by weight, 50 parts of polyethylene glycol, 2-5 parts of an anti-wear agent, 5-10 parts of an antistatic agent, 5-10 parts of glycerol, 5-20 parts of lithium nitrate, 10-20 parts of lithium oxalate, 5-10 parts of ethanol, 5-15 parts of butanediol, 5-10 parts of lithium formate and 5-15 parts of diaminodiphenylmethane.
2. The method for manufacturing the permanent antistatic natural color polyurethane rubber roller according to claim 1, characterized in that: the method comprises the following steps:
s1, firstly adding glycerol into polyethylene glycol, and heating to 130-140 ℃;
s2, dehydrating for 1.5 hours under vacuum, heating to 130-140 ℃, dehydrating under vacuum, and repeating the steps for three times;
s3, when the temperature is reduced to 50-60 ℃, adding a wear-resisting agent, an antistatic agent, ethanol, butanediol and diaminodiphenylmethane, stirring for 1-2 hours, keeping the temperature at 70 ℃, and carrying out vacuum defoaming;
s4, adding lithium nitrate, lithium oxalate and lithium formate, pouring into a required mould, drying at 70-140 ℃ for 1-2 hours, and forming and demoulding;
s5, vulcanizing at 60-65 ℃ for 12-13 hours to obtain the product.
3. The permanent antistatic greige polyurethane roll of claim 1, wherein: the antistatic agent comprises the following raw materials in parts by weight: 60-80 parts of dipropyl phthalate, 4-7 parts of catalyst and 15-30 parts of organic solvent.
4. A permanent antistatic greige polyurethane roll according to claim 3, wherein; the preparation method of the antistatic agent comprises the following steps:
s1, adding the dipropyl phthalate, the catalyst and the organic solvent into a reaction kettle, and reacting at the temperature of 100 ℃ and 150 ℃ for 3-4 hours;
s2, putting alkali metal salt into a reaction kettle, and mixing to obtain the permanent antistatic agent.
5. The permanent antistatic greige polyurethane roll of claim 1, wherein: the anti-wear agent is siloxane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916436.8A CN110591049A (en) | 2019-09-26 | 2019-09-26 | Permanent antistatic natural color polyurethane rubber roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916436.8A CN110591049A (en) | 2019-09-26 | 2019-09-26 | Permanent antistatic natural color polyurethane rubber roller |
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| CN110591049A true CN110591049A (en) | 2019-12-20 |
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| CN201910916436.8A Pending CN110591049A (en) | 2019-09-26 | 2019-09-26 | Permanent antistatic natural color polyurethane rubber roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951036A (en) * | 2019-12-29 | 2020-04-03 | 太原理工大学 | Casting polyurethane elastomer electrolyte and preparation method thereof |
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| WO2009086246A1 (en) * | 2007-12-26 | 2009-07-09 | Lubrizol Advanced Materials, Inc. | Transparent multilayer sheet having electrostatic dissipative properties |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110951036A (en) * | 2019-12-29 | 2020-04-03 | 太原理工大学 | Casting polyurethane elastomer electrolyte and preparation method thereof |
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Application publication date: 20191220 |
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| RJ01 | Rejection of invention patent application after publication |