CN110283567B - Hot melt adhesive for PVC sealing strip and preparation method thereof - Google Patents
Hot melt adhesive for PVC sealing strip and preparation method thereof Download PDFInfo
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- CN110283567B CN110283567B CN201910479732.6A CN201910479732A CN110283567B CN 110283567 B CN110283567 B CN 110283567B CN 201910479732 A CN201910479732 A CN 201910479732A CN 110283567 B CN110283567 B CN 110283567B
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- hot melt
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- vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
- C09J193/04—Rosin
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a hot melt adhesive for PVC sealing strips and a preparation method thereof, wherein the hot melt adhesive comprises the following components in parts by mass: chlorinated polyethylene: 15-35 parts; ethylene-vinyl acetate copolymer: 25-45 parts of a solvent; glyceryl triacetate: 18-35 parts of a solvent; rosin pentaerythritol ester: 40-60 parts; antioxidant: 0.5-2 parts. The preparation method comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and antioxidant into a double-screw extruder, mixing, extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip. The hot melt adhesive can be used for bonding PVC sealing strips, not only has high bonding strength, but also can not influence the bonding performance of the hot melt adhesive due to the fact that the plasticizer in the PVC sealing strips seeps out completely, and the bonding reliability is obviously improved.
Description
Technical Field
The invention relates to the technical field of hot melt adhesives, and particularly relates to a hot melt adhesive for a PVC sealing strip and a preparation method thereof.
Background
The sealing strip is a product which can play the roles of shock absorption, water prevention, sound insulation, heat insulation, dust prevention, fixation and the like, and common materials comprise rubber, paper, metal, plastic and the like. The PVC sealing strip has good compression deformation resistance, aging resistance, ozone resistance and chemical resistance, good processing performance, excellent insulating performance, low manufacturing cost, recoverability and reutilization, and is widely applied to the fields of automobile doors and windows, curtain walls and the like.
At present, an adhesive used for bonding a PVC sealing strip is mainly a solvent type acrylic pressure-sensitive adhesive, contains more volatile substances, is easy to cause bubbles in an adhesive film after being cured, and can pollute the environment and cause certain harm to operators. The hot melt adhesive is a solid without solvent, does not contain volatile substances, is convenient to use, can be repeatedly operated, is beneficial to large-scale rapid operation of factories, and is expected to replace solvent type acrylic pressure-sensitive adhesives in many fields. However, most of the existing hot melt adhesives cannot bond the PVC sealing strips for the following reasons: because PVC's heat resistance itself is relatively poor, so generally add higher content plasticizer in the PVC sealing strip for improve its heat resistance, toughness, ductility etc. when current hot melt adhesive was used for bonding the PVC sealing strip, the plasticizer in the PVC sealing strip can migrate toward the hot melt adhesive, makes the molecular structure of hot melt adhesive become loose, leads to the softening temperature of hot melt adhesive to reduce, and the glued membrane softens, and then loses adhesive property.
Disclosure of Invention
The invention aims to provide a hot melt adhesive for a PVC sealing strip and a preparation method thereof.
The technical scheme adopted by the invention is as follows:
the hot melt adhesive for the PVC sealing strip comprises the following components in parts by mass:
chlorinated polyethylene: 15-35 parts;
ethylene-vinyl acetate copolymer: 25-45 parts of a solvent;
glyceryl triacetate: 18-35 parts of a solvent;
rosin pentaerythritol ester: 40-60 parts;
antioxidant: 0.5-2 parts.
Preferably, the hot melt adhesive for the PVC sealing strip comprises the following components in parts by mass:
chlorinated polyethylene: 20-30 parts of a solvent;
ethylene-vinyl acetate copolymer: 30-40 parts of a binder;
glyceryl triacetate: 22-30 parts of a solvent;
rosin pentaerythritol ester: 45-55 parts of a solvent;
antioxidant: 0.8 to 1.4 portions.
Preferably, the chlorine content in the chlorinated polyethylene is 30 wt% to 35 wt%.
Preferably, the number average molecular weight of the chlorinated polyethylene is 30000-70000 g/mol, the melt index is 2-10 g/10min, and the test condition of the melt index is 190 ℃/5 kg.
Preferably, the content of the vinyl acetate unit in the ethylene-vinyl acetate copolymer is 22 wt% -26 wt%.
Preferably, the number average molecular weight of the ethylene-vinyl acetate copolymer is 80000-150000 g/mol.
Preferably, the number average molecular weight of the rosin pentaerythritol ester is 800-900 g/mol.
Preferably, the antioxidant is antioxidant 425.
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and antioxidant into a double-screw extruder, mixing, extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Preferably, the processing temperature of the double-screw extruder is 140-180 ℃.
The invention has the beneficial effects that: the hot melt adhesive can be used for bonding PVC sealing strips, not only has high bonding strength, but also can not influence the bonding performance of the hot melt adhesive due to the fact that the plasticizer in the PVC sealing strips seeps out completely, and the bonding reliability is obviously improved.
Detailed Description
The invention will be further explained and illustrated with reference to specific examples.
Example 1:
the hot melt adhesive for the PVC sealing strip comprises the following raw materials in percentage by weight:
table 1 raw material composition table of hot melt adhesive for PVC sealing strip
| Raw materials | Mass portion of |
| Chlorinated polyethylene | 15 |
| Ethylene-vinyl acetate copolymer | 25 |
| Glycerol triacetate | 18 |
| Rosin pentaerythritol ester | 60 |
| Antioxidant 425 | 1.5 |
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and an antioxidant 425 into a double-screw extruder, mixing (the mixing temperature is 160 ℃), extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Example 2:
the hot melt adhesive for the PVC sealing strip comprises the following raw materials in percentage by weight:
TABLE 2 raw material composition table of hot melt adhesive for PVC sealing strip
| Raw materials | Mass portion of |
| Chlorinated polyethylene | 20 |
| Ethylene-vinyl acetate copolymerizationArticle (A) | 40 |
| Glycerol triacetate | 22 |
| Rosin pentaerythritol ester | 55 |
| Antioxidant 425 | 0.8 |
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and an antioxidant 425 into a double-screw extruder, mixing (the mixing temperature is 160 ℃), extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Example 3:
the hot melt adhesive for the PVC sealing strip comprises the following raw materials in percentage by weight:
TABLE 3 raw material composition table of hot melt adhesive for PVC sealing strip
| Raw materials | Mass portion of |
| Chlorinated polyethylene | 25 |
| Ethylene-vinyl acetate copolymer | 35 |
| Glycerol triacetate | 25 |
| Rosin pentaerythritol ester | 50 |
| Antioxidant 425 | 1 |
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and an antioxidant 425 into a double-screw extruder, mixing (the mixing temperature is 160 ℃), extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Example 4:
the hot melt adhesive for the PVC sealing strip comprises the following raw materials in percentage by weight:
TABLE 4 raw material composition table of hot melt adhesive for PVC sealing strip
| Raw materials | Mass portion of |
| Chlorinated polyethylene | 30 |
| Ethylene-vinyl acetate copolymer | 30 |
| Glycerol triacetate | 30 |
| Rosin pentaerythritol ester | 45 |
| Antioxidant 425 | 1.4 |
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and an antioxidant 425 into a double-screw extruder, mixing (the mixing temperature is 160 ℃), extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Example 5:
the hot melt adhesive for the PVC sealing strip comprises the following raw materials in percentage by weight:
TABLE 5 raw material composition table of hot melt adhesive for PVC sealing strip
| Raw materials | Mass portion of |
| Chlorinated polyethylene | 35 |
| Ethylene-vinyl acetate copolymer | 45 |
| Glycerol triacetate | 35 |
| Rosin pentaerythritol ester | 40 |
| Antioxidant 425 | 2 |
The preparation method of the hot melt adhesive for the PVC sealing strip comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and an antioxidant 425 into a double-screw extruder, mixing (the mixing temperature is 160 ℃), extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
Note:
indexes of the raw materials in examples 1 to 5 are as follows:
chlorinated polyethylene: 30-35 wt% of chlorine, 30000-70000 g/mol of number average molecular weight, 2-10 g/10min of melt index, and 190 ℃/5kg of melt index test condition;
ethylene-vinyl acetate copolymer: the content of the vinyl acetate unit is 22-26 wt%, and the number average molecular weight is 80000-150000 g/mol;
rosin pentaerythritol ester: the number average molecular weight is 800 to 900 g/mol.
Comparative example 1:
certain hot melt adhesives are commercially available.
Test example:
the hot melt adhesives of examples 1-5 and comparative example 1 were subjected to performance testing, and the test results are shown in the following table:
TABLE 6 results of the Performance test of the hot melt adhesives of examples 1 to 5 and comparative example 1
Note:
the test criteria for each performance index are as follows:
softening point: GB/T15332-;
opening time: ASTM D4497-1994;
initial viscosity energy: GB/T4852-2002;
the permanent adhesion property: GB/T4851-1998;
180 ° peel strength: GB/T2792-;
the plasticizer resistance effect is as follows: and (3) bonding the PVC sealing strip on an aluminum plate, placing the aluminum plate at 70 ℃ for 144h, observing whether the bonding part is subjected to oil leakage (plasticizer) or not, peeling the PVC sealing strip from the aluminum plate, and testing whether the PVC sealing strip is easy to peel.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (6)
1. The utility model provides a PVC is hot melt adhesive for sealing strip which characterized in that: the composition comprises the following components in parts by mass:
chlorinated polyethylene: 15-35 parts;
ethylene-vinyl acetate copolymer: 25-45 parts of a solvent;
glyceryl triacetate: 18-35 parts of a solvent;
rosin pentaerythritol ester: 40-60 parts;
antioxidant: 0.5-2 parts;
the chlorine content in the chlorinated polyethylene is 30-35 wt%, the number average molecular weight of the chlorinated polyethylene is 30000-70000 g/mol, the melt index is 2-10 g/10min, and the test condition of the melt index is 190 ℃/5 kg;
the content of vinyl acetate units in the ethylene-vinyl acetate copolymer is 22 wt% -26 wt%, and the number average molecular weight of the ethylene-vinyl acetate copolymer is 80000-150000 g/mol.
2. The hot melt adhesive for PVC sealing strips as claimed in claim 1, wherein: the composition comprises the following components in parts by mass:
chlorinated polyethylene: 20-30 parts of a solvent;
ethylene-vinyl acetate copolymer: 30-40 parts of a binder;
glyceryl triacetate: 22-30 parts of a solvent;
rosin pentaerythritol ester: 45-55 parts of a solvent;
antioxidant: 0.8 to 1.4 portions.
3. The PVC hot melt adhesive for sealing strips according to claim 1 or 2, which is characterized in that: the number average molecular weight of the rosin pentaerythritol ester is 800-900 g/mol.
4. The PVC hot melt adhesive for sealing strips according to claim 1 or 2, which is characterized in that: the antioxidant is antioxidant 425.
5. The preparation method of the hot melt adhesive for the PVC sealing strip, as recited in any one of claims 1 to 4, is characterized in that: the method comprises the following steps: adding chlorinated polyethylene, ethylene-vinyl acetate copolymer, glyceryl triacetate, rosin pentaerythritol ester and antioxidant into a double-screw extruder, mixing, extruding, cooling and granulating to obtain the hot melt adhesive for the PVC sealing strip.
6. The method of claim 5, wherein: the mixing temperature is 140-180 ℃.
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| CN201910479732.6A CN110283567B (en) | 2019-06-04 | 2019-06-04 | Hot melt adhesive for PVC sealing strip and preparation method thereof |
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| CN201910479732.6A CN110283567B (en) | 2019-06-04 | 2019-06-04 | Hot melt adhesive for PVC sealing strip and preparation method thereof |
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| CN110283567B true CN110283567B (en) | 2021-03-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934056A (en) * | 1974-11-26 | 1976-01-20 | Showa Denko Kabushiki Kaisha | Resin compositions of high adhesivity comprising E/VA copolymer, chlorinated or chlorosulfonated polyethylene, an unsaturated acid and a peroxy compound |
| US4337297A (en) * | 1981-07-16 | 1982-06-29 | Gulf Oil Corporation | Coextrudable thermoplastic compositions and bonds and laminates therefrom |
| CN102559078A (en) * | 2011-12-28 | 2012-07-11 | 广州鹿山新材料股份有限公司 | Hot melt adhesive membrane for bonding bi-metallic composite plate and preparing method thereof |
| CN109207094A (en) * | 2017-06-30 | 2019-01-15 | 重庆文理学院 | A kind of EVA melt pressure sensitive gluing agent and preparation method thereof |
-
2019
- 2019-06-04 CN CN201910479732.6A patent/CN110283567B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934056A (en) * | 1974-11-26 | 1976-01-20 | Showa Denko Kabushiki Kaisha | Resin compositions of high adhesivity comprising E/VA copolymer, chlorinated or chlorosulfonated polyethylene, an unsaturated acid and a peroxy compound |
| US4337297A (en) * | 1981-07-16 | 1982-06-29 | Gulf Oil Corporation | Coextrudable thermoplastic compositions and bonds and laminates therefrom |
| CN102559078A (en) * | 2011-12-28 | 2012-07-11 | 广州鹿山新材料股份有限公司 | Hot melt adhesive membrane for bonding bi-metallic composite plate and preparing method thereof |
| CN109207094A (en) * | 2017-06-30 | 2019-01-15 | 重庆文理学院 | A kind of EVA melt pressure sensitive gluing agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 新型纸-塑复合专用热熔胶;邓巨浪;《应用科技》;19971115;第8-9页 * |
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Effective date of registration: 20210129 Address after: 423000 R & D workshop of shigaitang electronic new materials (China) Industrial Park, Beihu District, Chenzhou City, Hunan Province Applicant after: Hunan Weiyi New Material Co.,Ltd. Address before: Room 2510, No.1 Industrial Avenue, high tech Industrial Park, Conghua Economic Development Zone, Conghua District, Guangzhou, Guangdong 510990 Applicant before: GUANGZHOU WEASY ADHESIVE PRODUCTS Co.,Ltd. |
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