CN104311771A - Regenerated sponge rubber and preparation method thereof - Google Patents
Regenerated sponge rubber and preparation method thereof Download PDFInfo
- Publication number
- CN104311771A CN104311771A CN201410534381.1A CN201410534381A CN104311771A CN 104311771 A CN104311771 A CN 104311771A CN 201410534381 A CN201410534381 A CN 201410534381A CN 104311771 A CN104311771 A CN 104311771A
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- CN
- China
- Prior art keywords
- parts
- preparation
- renewable sponge
- polyether glycol
- sponge glue
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Classifications
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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
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/227—Catalysts containing metal compounds of antimony, bismuth or arsenic
-
- 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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the chemical field and in particular relates to regenerated sponge rubber and a preparation method thereof. The regenerated sponge rubber is prepared from the following raw materials in parts by weight: 45-85 parts of polyether polyol, 1.5-4.0 parts of a catalyst, 20-25 parts of a diluent and 10-15 parts of polyisocyanate, wherein NCO percent of a synthetic product is 5.0-7.0 percent. The preparation method comprises the following steps: raising temperature of the polyether polyol until 100-110 DEG C, carrying out vacuum dewatering for 2-2.5h, cooling to 50-60 DEG C, adding the polyisocyanate, raising temperature until 80-85 DEG C, reacting for 2-3h, cooling below 50 DEG C, adding the diluent and the catalyst, and stirring for 20-30min to obtain the synthetic product. The regenerated sponge rubber has the advantages of high bonding degree, good toughness, large tear strength, no peculiar smell, environmental protection, no three wastes discharge in production of the product and the like.
Description
Technical field
The present invention relates to a kind of gelatin sponge, be specifically related to a kind of renewable sponge glue and preparation method thereof.
Background technology
The sponge that the whole world is annual and polyurethanes amount of product throughput are close to 7,000,000 tons, and this series products all can occur a large amount of waste material after using with consumption in process of production; After exceeding working life, polyurethanes product also can be scrapped because its performance significantly declines.In order to protection of the environment, these waste materials must effectively recycle and recycle.Made by waste and old sponge and become renewable sponge, not only reduce production cost, improve material effective rate of utilization, meet again the requirement of protection of the environment, therefore renewable sponge has become a kind of sponge treatment process of global general-use simultaneously.The process of renewable sponge usually will use renewable sponge glue.Traditional renewable sponge glue bond is poor, and peculiar smell is large, therefore needs a kind of environmental protection and the high renewable sponge glue of cost performance.
Summary of the invention
The object of this invention is to provide a kind of renewable sponge glue and preparation method thereof, it is poor to solve traditional renewable sponge glue bond, the shortcoming that peculiar smell is large, production process three-waste free discharge, cohesiveness is good, not containing benezene material, good toughness, tear strength is large, and cost performance is very high, and its preparation method is simple and easy to implement.
Renewable sponge glue of the present invention, be made up of the raw material of following parts by weight:
Polyether glycol 45-85 part, catalyzer 1.5-4.0 part, thinner 20-25 part, polyisocyanates 10-15 part; The NCO% of sintetics is 5.0-7.0%.
Thinner is methylene dichloride.
The molecular weight of polyether glycol is 1000-1500, and functionality is 3-4.
The molecular weight of polyether glycol is 1000, and functionality is 3.5.
Polyether glycol is DDL-1000 and/or DMN-1500.DDL-1000 can improve the cohesiveness of glue.
The manufacturer of DMN-1500, DDL-1000 is Zibo federal chemical Industrial Co., Ltd of moral letter.
Catalyzer is organic bismuth catalyst.The organic bismuth catalyst of catalyzer preferred content 18.Content 18 organic bismuth catalyst refers to that in organic bismuth catalyst, bi content is 18%.Organic bismuth catalyst is environment-friendly type catalyzer, there will not be pollution in operating process.
Polyisocyanates is diphenylmethanediisocyanate.
The preparation method of renewable sponge glue, comprises the following steps:
Polyether glycol is warming up to 100-110 DEG C, and vacuum hydro-extraction 2-2.5 hour, is cooled to 50-60 DEG C, add polyisocyanates, be warming up to 80-85 DEG C of reaction after 2-3 hour, be cooled to less than 50 DEG C, adding thinner and catalyzer stirs after 20-30 minute, i.e. synthetic products.
The NCO% of sintetics is 5.0-7.0%.NCO% is the sizing agent cured glue layer good toughness of 5-7%.
Compared with prior art, the present invention has following beneficial effect:
(1) the renewable sponge glue bond that breaks traditions of the present invention is poor, the shortcoming that peculiar smell is large, production process three-waste free discharge, and cohesiveness is good, not containing benezene material, good toughness, and tear strength is large, and cost performance is very high, and market outlook are very wide.
(2) polyol systems that the present invention adopts improves toughness and the tensile strength of sizing agent, eliminates the fragility of traditional sizing agent.Solve the applied defect of present stage, add the Application Areas of urethane.
(3) preparation method provided by the invention, is simple and easy to implement.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
Renewable sponge glue is made up of the raw material of following parts by weight:
Polyether glycol DMN-1500 79 parts, organic bismuth catalyst 3.5 parts, methylene dichloride 20 parts, diphenylmethanediisocyanate 15 parts; The NCO% of sintetics is 7%.
The preparation method of renewable sponge glue is as follows:
Heat up polyether glycol 110.0 DEG C of vacuum hydro-extractions 2 hours, is cooled to 50 DEG C, adds diphenylmethanediisocyanate, is warming up to 85 DEG C of reactions after 2.5 hours, is cooled to 50 DEG C, adds methylene dichloride and organic bismuth catalyst, stir 20 minutes, i.e. synthetic products.
Embodiment 2
Renewable sponge glue is made up of the raw material of following parts by weight:
Polyether glycol DDL-1000 45 parts, organic bismuth catalyst 1.5 parts, methylene dichloride 22 parts, diphenylmethanediisocyanate 12 parts; The NCO% of sintetics is 6.5%.
The preparation method of renewable sponge glue is as follows:
Heat up polyether glycol 115 DEG C of vacuum hydro-extractions 2.5 hours, is cooled to 50 DEG C, adds diphenylmethanediisocyanate, is warming up to 82 DEG C of reactions after 3 hours, is cooled to 40 DEG C, adds methylene dichloride and organic bismuth catalyst, stir 25 minutes, i.e. synthetic products.
Embodiment 3
Renewable sponge glue is made up of the raw material of following parts by weight:
Polyether glycol DMN-1500 85 parts, organic bismuth catalyst 4 parts, methylene dichloride 25 parts, diphenylmethanediisocyanate 10 parts; The NCO% of sintetics is 5.0%.
The preparation method of renewable sponge glue is as follows:
Heat up polyether glycol 112.0 DEG C of vacuum hydro-extractions 2 hours, is cooled to 55 DEG C, adds diphenylmethanediisocyanate, is warming up to 85 DEG C of reactions after 2 hours, is cooled to 42 DEG C, adds methylene dichloride and organic bismuth catalyst, stir 30 minutes, i.e. synthetic products.
Claims (7)
1. a renewable sponge glue, is characterized in that, with weight parts, raw material is made as follows:
Polyether glycol 45-85 part, catalyzer 1.5-4.0 part, thinner 20-25 part, polyisocyanates 10-15 part; The NCO% of sintetics is 5.0-7.0%.
2. renewable sponge glue according to claim 1, is characterized in that, thinner is methylene dichloride.
3. renewable sponge glue according to claim 1, is characterized in that, the molecular weight of polyether glycol is 1000-1500, and functionality is 3-4.
4. renewable sponge glue according to claim 3, is characterized in that, the molecular weight of polyether glycol is 1000, and functionality is 3.5.
5. renewable sponge glue according to claim 4, is characterized in that, polyether glycol is DDL-1000 and/or DMN-1500.
6. renewable sponge glue according to claim 1, is characterized in that, catalyzer is organic bismuth catalyst.
7. a preparation method for the arbitrary described renewable sponge glue of claim 1-6, is characterized in that, comprise the following steps:
Polyether glycol is warming up to 100-110 DEG C, and vacuum hydro-extraction 2-2.5 hour, is cooled to 50-60 DEG C, add polyisocyanates, be warming up to 80-85 DEG C of reaction after 2-3 hour, be cooled to less than 50 DEG C, adding thinner and catalyzer stirs after 20-30 minute, i.e. synthetic products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534381.1A CN104311771A (en) | 2014-10-11 | 2014-10-11 | Regenerated sponge rubber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534381.1A CN104311771A (en) | 2014-10-11 | 2014-10-11 | Regenerated sponge rubber and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104311771A true CN104311771A (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410534381.1A Pending CN104311771A (en) | 2014-10-11 | 2014-10-11 | Regenerated sponge rubber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104311771A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273164A (en) * | 2015-11-12 | 2016-01-27 | 淄博德信联邦化学工业有限公司 | Polystyrene foam used for polyurethane regenerative sponge and preparing method thereof |
| CN109705796A (en) * | 2019-01-09 | 2019-05-03 | 匠欣环保家居用品科技(浙江)有限公司 | A kind of high fastness discards sponge adhesive and preparation method |
| CN110423589A (en) * | 2019-08-02 | 2019-11-08 | 启东东岳化工有限公司 | A kind of environment-friendly type height rebound renewable sponge polyurethane binder and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438287A (en) * | 2003-03-06 | 2003-08-27 | 叶远鸿 | Method for preparing sponge binder |
| CN1710009A (en) * | 2005-06-21 | 2005-12-21 | 叶远鸿 | Method for preparing-environmental-protection sponge adhesive |
| CN103555260A (en) * | 2013-10-31 | 2014-02-05 | 淄博德信联邦化学工业有限公司 | One-component polyurethane (PU) wet wood adhesive and preparation method thereof |
-
2014
- 2014-10-11 CN CN201410534381.1A patent/CN104311771A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438287A (en) * | 2003-03-06 | 2003-08-27 | 叶远鸿 | Method for preparing sponge binder |
| CN1710009A (en) * | 2005-06-21 | 2005-12-21 | 叶远鸿 | Method for preparing-environmental-protection sponge adhesive |
| CN103555260A (en) * | 2013-10-31 | 2014-02-05 | 淄博德信联邦化学工业有限公司 | One-component polyurethane (PU) wet wood adhesive and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273164A (en) * | 2015-11-12 | 2016-01-27 | 淄博德信联邦化学工业有限公司 | Polystyrene foam used for polyurethane regenerative sponge and preparing method thereof |
| CN105273164B (en) * | 2015-11-12 | 2018-06-12 | 淄博德信联邦化学工业有限公司 | Polyurethane renewable sponge foamed glue and preparation method thereof |
| CN109705796A (en) * | 2019-01-09 | 2019-05-03 | 匠欣环保家居用品科技(浙江)有限公司 | A kind of high fastness discards sponge adhesive and preparation method |
| CN110423589A (en) * | 2019-08-02 | 2019-11-08 | 启东东岳化工有限公司 | A kind of environment-friendly type height rebound renewable sponge polyurethane binder and preparation method thereof |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150128 |