CN111875942A - Anti-delamination resin and preparation method thereof - Google Patents
Anti-delamination resin and preparation method thereof Download PDFInfo
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- CN111875942A CN111875942A CN202010793553.2A CN202010793553A CN111875942A CN 111875942 A CN111875942 A CN 111875942A CN 202010793553 A CN202010793553 A CN 202010793553A CN 111875942 A CN111875942 A CN 111875942A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
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Abstract
The invention discloses an anti-layering resin which comprises the following components in parts by weight: 55-93 parts of matrix resin, 10-25 parts of rosin, 3-12 parts of glass fiber, 4-15 parts of toughening agent, 0.4-1.6 parts of polymerization inhibitor, 0.02-0.06 part of stone powder and 0.06-0.18 part of emulsifier, and relates to the technical field of resin. According to the anti-layering resin, the linear alkyl benzene sodium sulfonate and the polymerization inhibitor are added into the resin material, the linear alkyl benzene sodium sulfonate can emulsify grease, so that grease substances are reduced to exist in the resin, and the layering phenomenon is reduced; in addition, a polymerization inhibitor is added after the resin is distilled, so that the content of styrene is controlled, layering is prevented, and finally a small amount of stone powder is added, so that a layer of transparent liquid is avoided, and the quality of the resin is ensured.
Description
Technical Field
The invention relates to the technical field of resin, in particular to anti-layering resin and a preparation method thereof.
Background
The resin generally refers to an organic polymer which has a softening or melting range after being heated, tends to flow by an external force when softened, and is solid, semi-solid, or liquid at room temperature. By broad definition, any polymeric compound that can be used as a raw material for processing plastic articles is referred to as a resin. After the resin is added with the filler and stirred, the mixture is kept stand for a period of time, and a layer of transparent liquid appears on the surface of the stirring barrel, namely the diluent is separated out, which is called layering and water is discharged. The use amount of substances which are not well crosslinked with styrene monomers in the production of the resin is large, so that the resin is easy to delaminate, and resin artware manufacturers can control the substances, but sometimes the substances have to be added in order to meet the requirements of resin curing, so that the resin for various artware has a delamination phenomenon more or less.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the anti-layering resin and the preparation method thereof, which solve the problem that the resin is easy to delaminate after being added with the filler and stirred, and ensure the quality of the artware.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the anti-delamination resin comprises the following components in parts by weight: 55-93 parts of matrix resin, 10-25 parts of rosin, 3-12 parts of glass fiber, 4-15 parts of toughening agent, 0.4-1.6 parts of polymerization inhibitor, 0.02-0.06 part of stone powder and 0.06-0.18 part of emulsifier.
Preferably, the matrix resin is an unsaturated polyester resin.
Preferably, the toughening agent is one or more of liquid nitrile rubber, polyvinyl butyral and polyvinyl acetate.
Preferably, the emulsifier adopts sodium linear alkyl benzene sulfonate.
Preferably, the polymerization inhibitor comprises hydroquinone and p-tert-butylcatechol, and the ratio of the hydroquinone to the p-tert-butylcatechol is 1: 3.
Preferably, the glass fiber is chopped glass fiber, and the chopped length is 1-3 mm.
A preparation method of delamination-resistant resin comprises the following steps:
s1: adding matrix resin and rosin into a distillation kettle, adding a polymerization inhibitor when the temperature reaches 260-320 ℃, stirring, then heating to 260-320 ℃, preserving heat for 3-5min, cooling to 80-130 ℃, adding an emulsifier, and stirring;
s2, transferring the material obtained in the step S1 into a reaction kettle, adding glass fiber, stirring for 5-10min, then adding a toughening agent and stone powder, and stirring again for 15-20min to obtain a mixture;
s3: and adding the mixture into a double-screw extrusion granulator set, and granulating the mixture to obtain the resin.
Preferably, the stirring time of both sides in the distillation kettle is 3-5 min.
Preferably, the temperature in the reaction kettle is 140-220 ℃, the stone powder is dry stone powder, and the stone powder is 200-mesh standard sieve underflow.
Preferably, the head temperature of the double-screw extrusion granulator is 185-200 ℃, and the rotating speed of the main machine screw is 350-500 r/min.
(III) advantageous effects
The invention provides an anti-layering resin, which has the following beneficial effects: by adding the linear alkyl benzene sodium sulfonate and the polymerization inhibitor into the resin material, the linear alkyl benzene sodium sulfonate can emulsify grease, reduce grease substances existing in the resin and reduce the layering phenomenon; in addition, a polymerization inhibitor is added after the resin is distilled, so that the content of styrene is controlled, layering is prevented, and finally a small amount of stone powder is added, so that a layer of transparent liquid is avoided, and the quality of the resin is ensured; the preparation method of the delamination-resistant resin is simple to operate, does not need complex procedures and is convenient to popularize.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 anti-delamination resin comprises the following components in parts by weight: 55 parts of matrix resin, 10 parts of rosin, 3 parts of glass fiber, 4 parts of toughening agent, 0.4 part of polymerization inhibitor, 0.02 part of stone powder and 0.06 part of emulsifier.
The matrix resin is unsaturated polyester resin.
The toughening agent adopts liquid nitrile rubber.
The emulsifier adopts linear alkyl benzene sodium sulfonate.
The polymerization inhibitor comprises hydroquinone and p-tert-butyl catechol, and the ratio of the hydroquinone to the p-tert-butyl catechol is 1: 3.
The glass fiber is chopped glass fiber, and the chopped length is 1 mm.
A preparation method of delamination-resistant resin comprises the following steps:
s1: adding matrix resin and rosin into a distillation kettle, adding a polymerization inhibitor when the temperature reaches 260 ℃ for stirring, then heating to 260 ℃ again, preserving the heat for 3min, cooling to 80 ℃, adding an emulsifier for stirring;
s2, transferring the material obtained in the step S1 into a reaction kettle, adding glass fiber, stirring for 5min, then adding a toughening agent and stone powder, and stirring again for 15min to obtain a mixture;
s3: and adding the mixture into a double-screw extrusion granulator set, and granulating the mixture to obtain the resin.
Stirring time in the distillation kettle is 3 min.
The temperature in the reaction kettle is 140 ℃, dry mountain flour is adopted as the mountain flour, and the mountain flour is 200-mesh standard sieve undersize.
The head temperature of the twin-screw extrusion granulator is 185 ℃, and the rotating speed of the main machine screw is 350 r/min.
Example 2
The anti-delamination resin comprises the following components in parts by weight: 68 parts of matrix resin, 17 parts of rosin, 7 parts of glass fiber, 9 parts of toughening agent, 1 part of polymerization inhibitor, 0.04 part of stone powder and 0.12 part of emulsifier.
The matrix resin is unsaturated polyester resin.
The toughening agent adopts polyvinyl butyral.
The emulsifier adopts linear alkyl benzene sodium sulfonate.
The polymerization inhibitor comprises hydroquinone and p-tert-butyl catechol, and the ratio of the hydroquinone to the p-tert-butyl catechol is 1: 3.
The glass fiber is chopped glass fiber, and the chopped length is 2 mm.
The preparation method of the delamination-resistant resin comprises the following steps
S1: adding matrix resin and rosin into a distillation kettle, adding a polymerization inhibitor when the temperature reaches 290 ℃, stirring, then heating to 290 ℃, preserving heat for 4min, cooling to 110 ℃, adding an emulsifier, and stirring;
s2, transferring the material obtained in the step S1 into a reaction kettle, adding glass fiber, stirring for 8min, then adding a toughening agent and stone powder, and stirring again for 17min to obtain a mixture;
s3: and adding the mixture into a double-screw extrusion granulator set, and granulating the mixture to obtain the resin.
Stirring time in the distillation kettle is 4 min.
The temperature in the reaction kettle is 180 ℃, dry mountain flour is adopted as mountain flour, and the mountain flour is 200-mesh standard sieve undersize.
The temperature of the head of the twin-screw extrusion granulator is 190 ℃, and the rotating speed of the screw of the main machine is 400 r/min.
Example 3
The anti-delamination resin comprises the following components in parts by weight: 93 parts of matrix resin, 25 parts of rosin, 12 parts of glass fiber, 15 parts of toughening agent, 1.6 parts of polymerization inhibitor, 0.06 part of stone powder and 0.18 part of emulsifier.
The matrix resin is unsaturated polyester resin.
The toughening agent adopts polyvinyl acetate.
The emulsifier adopts linear alkyl benzene sodium sulfonate.
The polymerization inhibitor comprises hydroquinone and p-tert-butyl catechol, and the ratio of the hydroquinone to the p-tert-butyl catechol is 1: 3.
The glass fiber is chopped glass fiber, and the chopped length is 3 mm.
The preparation method of the delamination-resistant resin comprises the following steps
S1: adding matrix resin and rosin into a distillation kettle, adding a polymerization inhibitor when the temperature reaches 320 ℃, stirring, then heating to 320 ℃, preserving heat for 5min, cooling to 130 ℃, adding an emulsifier, and stirring;
s2, transferring the material obtained in the step S1 into a reaction kettle, adding glass fiber, stirring for 10min, then adding a toughening agent and stone powder, and stirring again for 20min to obtain a mixture;
s3: and adding the mixture into a double-screw extrusion granulator set, and granulating the mixture to obtain the resin.
Stirring time in the distillation kettle is 5 min.
The temperature in the reaction kettle is 220 ℃, dry mountain flour is adopted as the mountain flour, and the mountain flour is 200-mesh standard sieve undersize.
The temperature of the head of the twin-screw extrusion granulator is 200 ℃, and the rotating speed of the screw of the main machine is 500 r/min.
Comparative experiment
According to claim 1, three anti-delamination resins can be produced by the existing manufacturers, and compared with the common resin, as shown in Table 1, laboratory tests show that the maximum dose of the anti-delamination resin in the examples is 1.03 ml, the dose of the anti-delamination resin in the examples is 3.35ml less than that in the comparative examples, the minimum dose of the anti-delamination resin in the examples is 0.36ml, and the dose of the anti-delamination resin in the examples is 4.02ml less than that in the comparative examples.
Table 1: comparative table of diluent amount and comparative example
| Comparative example | Example 1 | Example 2 | Example 3 | |
| Diluent amount/ml | 4.38 | 1.03 | 0.36 | 0.83 |
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A delamination resistant resin characterized by: the components of the composition by weight portion are as follows: 55-93 parts of matrix resin, 10-25 parts of rosin, 3-12 parts of glass fiber, 4-15 parts of toughening agent, 0.4-1.6 parts of polymerization inhibitor, 0.02-0.06 part of stone powder and 0.06-0.18 part of emulsifier.
2. The delamination-resistant resin as recited in claim 1, wherein: the matrix resin is unsaturated polyester resin.
3. The delamination-resistant resin as recited in claim 1, wherein: the toughening agent adopts one or more of liquid nitrile rubber, polyvinyl butyral and polyvinyl acetate.
4. The delamination-resistant resin as recited in claim 1, wherein: the emulsifier adopts linear alkyl benzene sodium sulfonate.
5. The delamination-resistant resin as recited in claim 1, wherein: the polymerization inhibitor comprises hydroquinone and p-tert-butyl catechol, and the ratio of the hydroquinone to the p-tert-butyl catechol is 1: 3.
6. The delamination-resistant resin as recited in claim 1, wherein: the glass fiber is chopped glass fiber, and the chopped length is 1-3 mm.
7. A preparation method of delamination-resistant resin is characterized in that: the method comprises the following steps:
s1: adding matrix resin and rosin into a distillation kettle, adding a polymerization inhibitor when the temperature reaches 260-320 ℃, stirring, then heating to 260-320 ℃, preserving heat for 3-5min, cooling to 80-130 ℃, adding an emulsifier, and stirring;
s2, transferring the material obtained in the step S1 into a reaction kettle, adding glass fiber, stirring for 5-10min, then adding a toughening agent and stone powder, and stirring again for 15-20min to obtain a mixture;
s3: and adding the mixture into a double-screw extrusion granulator set, and granulating the mixture to obtain the resin.
8. The delamination-resistant resin as recited in claim 7, wherein: stirring time of both sides in the distillation kettle is 3-5 min.
9. The delamination-resistant resin as recited in claim 7, wherein: the temperature in the reaction kettle is 140-220 ℃, dry stone powder is adopted as the stone powder, and the stone powder is 200-mesh standard sieve underflow.
10. The delamination-resistant resin as recited in claim 7, wherein: the temperature of the head of the double-screw extrusion granulator is 185-200 ℃, and the rotating speed of the screw of the main machine is 350-500 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010793553.2A CN111875942A (en) | 2020-08-10 | 2020-08-10 | Anti-delamination resin and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010793553.2A CN111875942A (en) | 2020-08-10 | 2020-08-10 | Anti-delamination resin and preparation method thereof |
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| Publication Number | Publication Date |
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| CN111875942A true CN111875942A (en) | 2020-11-03 |
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| CN202010793553.2A Withdrawn CN111875942A (en) | 2020-08-10 | 2020-08-10 | Anti-delamination resin and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998921A (en) * | 2021-11-03 | 2022-02-01 | 中铁上海工程局集团市政环保工程有限公司 | Glass fiber reinforced polyester-epoxy resin compound concrete material, pipe and preparation method |
-
2020
- 2020-08-10 CN CN202010793553.2A patent/CN111875942A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998921A (en) * | 2021-11-03 | 2022-02-01 | 中铁上海工程局集团市政环保工程有限公司 | Glass fiber reinforced polyester-epoxy resin compound concrete material, pipe and preparation method |
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Application publication date: 20201103 |