CN107793988A - A kind of polyurethane sealant process units - Google Patents
A kind of polyurethane sealant process units Download PDFInfo
- Publication number
- CN107793988A CN107793988A CN201610808050.1A CN201610808050A CN107793988A CN 107793988 A CN107793988 A CN 107793988A CN 201610808050 A CN201610808050 A CN 201610808050A CN 107793988 A CN107793988 A CN 107793988A
- Authority
- CN
- China
- Prior art keywords
- storage tank
- raw material
- reactor
- process units
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- C09J11/08—Macromolecular additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
A kind of polyurethane sealant process units, mainly includes：Methyl diphenylene diisocyanate storage tank, toluene diisocyanate storage tank, raw material pump, reactor, vacuum tank, vavuum pump；Annexation between each part of process units is：Toluene diisocyanate storage tank is connected with raw material pump, and methyl diphenylene diisocyanate storage tank is connected with raw material pump, and reactor is connected with raw material pump and vacuum tank respectively, and vavuum pump is connected with vacuum tank；Wherein, 7.5-8.5L of methyl diphenylene diisocyanate storage tank nominal volume, 6.5-7.5mm of head thickness；135-145mm of raw material impeller of pump diameter；Reactor 3200-3500L of nominal volume, 1800-1900mm of outer pot diameter；Described 1450-1550mm of methyl diphenylene diisocyanate storage tank drum diameter；1650-1750mm of pot diameter in described reactor.
Description
Technical field
The present invention relates to a kind of polyurethane sealant process units.
Background technology
Polyurethane sealant is the fluid sealant using polyurethane rubber and base polyurethane prepolymer for use as main component.Such fluid sealant
It is particularly alkaline-resisting water-based to owe with high tensile strength, excellent elasticity, wearability, oil resistivity and cold resistance, but water resistance
It is good.Three kinds of heating vulcanization type, room temperature vulcanized and heat molten type can be divided into.Wherein room temperature vulcanized have again one pack system and bi-component it
Point.It is widely used in building, square, highway as inlay sealing material, and automobile making, glass installation, electronic filling
Deng sealing.With excellent wearability；Low-temperature pliability；Performance adjustable extent is wider；Mechanical strength is big；Cementability is good；
Elasticity is good, has excellent restoration, is suitably adapted for dynamic juncture；Good weatherability, service life was up to 15~20 years；Oil resistance
It is excellent；Resistance to biological aging；It is moderate.Polyurethane sealant also has some shortcomings.Such as：Can not be heat-resisting for a long time；Light color formula holds
Easily by ultraviolet light and aging；One pack system glue bin stability is packed and ectocine is larger, and generally solidification is slower；High thermal environment
Under there may be bubble and crackle；Many occasions need primary coat.Polyurethane sealant water resistance is also poor simultaneously, particularly alkaline-resisting
It is water-based not good enough.Therefore, polyurethane sealant process units quality has important for improving product quality, reduction by-products content
Economic implications.
The content of the invention
It is an object of the invention to provide a kind of polyurethane sealant process units, mainly include：Diphenyl methane two is different
Cyanate storage tank (F101), toluene diisocyanate storage tank (F102), raw material pump (J101, J102), reactor (D101), voltage stabilizing
Tank (F103), vavuum pump (J103)；Annexation between each part of process units is：Toluene diisocyanate storage tank
(F102) it is connected with raw material pump (J102), methyl diphenylene diisocyanate storage tank (F101) is connected with raw material pump (J101)
Connect, reactor (D101) is connected with raw material pump (J101, J102) and vacuum tank (F103) respectively, vavuum pump (J103) and voltage stabilizing
Tank (F103) is connected；Wherein, methyl diphenylene diisocyanate storage tank (F101) 7.5-8.5L of nominal volume, head thickness
6.5—7..5mm；135-145mm of raw material pump (J101) impeller diameter；Reactor (D101) 3200-3500L of nominal volume, outside
1800-1900mm of pot diameter；Wherein, described methyl diphenylene diisocyanate storage tank (F101) barrel diameter 1450-
1550mm；Described 1650-1750mm of reactor (D101) interior pot diameter.
A kind of polyurethane sealant process units, production procedure are：Polyethers is placed in reactor first, vacuum is carried out and takes off
Water, temperature are 90-105 DEG C, keep 3-5h, remove the minor amount of water that contains in raw material, in the case where being stirred continuously, TDI, MDI with
Rosin is added in the polyethers after dehydration, and it is 70-75 DEG C to control temperature, is added polymerization inhibitor, catalyst after reacting 4-6h and is filled out
Material, stirs, then tinning is sealed, and obtains product.
The invention has the advantages that：Reduce reaction intermediate link, reduce reaction temperature and reaction time, improve reaction
Yield.
Brief description of the drawings
Fig. 1 is a kind of polyurethane sealant process units,
Mainly include：Methyl diphenylene diisocyanate storage tank (F101), toluene diisocyanate storage tank (F102), raw material
Pump (J101, J102), reactor (D101), vacuum tank (F103), vavuum pump (J103)；
Embodiment
With reference to specific implementation example, the invention will be further described：
A kind of polyurethane sealant process units,
Example 1：
Raw materials for production and dosage
Polyethers is placed in reactor first, carries out vacuum dehydration, temperature is 90-105 DEG C, keeps 3-5h, is removed former
The minor amount of water contained in material, in the case where being stirred continuously, in the polyethers that TDI, MDI and rosin are added to after dehydration, the temperature is controlled to be
70-75 DEG C, polymerization inhibitor, catalyst and filler are added after reacting 4-6h, is stirred, then tinning is sealed, and obtains product
1。
The property of product 1
| Outward appearance | Sticky paste | Elongation | >330% |
| Solid content | >93.5% | Tensile strength | 1.3MPa |
| Adhesive strength (DEG C) | 1.6MPa |
Example 2：
Raw materials for production and dosage
Polyethers is placed in reactor first, carries out vacuum dehydration, temperature is 95 DEG C, keeps 4h, removes and contain in raw material
Minor amount of water, in the case where being stirred continuously, TDI, MDI and rosin be added to dehydration after polyethers in, control temperature be 72 DEG C, react
Polymerization inhibitor, catalyst and filler are added after 5h, is stirred, then tinning is sealed, and obtains product 2.
The property of product 2
| Outward appearance | Sticky paste | Elongation | >350% |
| Solid content | >95.7% | Tensile strength | 1.9MPa |
| Adhesive strength (DEG C) | 1.8MPa |
Example 3：
Raw materials for production and dosage
Polyethers is placed in reactor first, carries out vacuum dehydration, temperature is 105 DEG C, keeps 5h, removes and contain in raw material
Minor amount of water, in the case where being stirred continuously, TDI, MDI and rosin be added to dehydration after polyethers in, control temperature be 75 DEG C, react
Polymerization inhibitor, catalyst and filler are added after 6h, is stirred, then tinning is sealed, and obtains product 3.
The property of product 3
| Outward appearance | Sticky paste | Elongation | >370% |
| Solid content | >98.6% | Tensile strength | 2.2MPa |
| Adhesive strength (DEG C) | 2.3MPa |
Claims (3)
1. a kind of polyurethane sealant process units, it is characterised in that mainly include：Methyl diphenylene diisocyanate storage tank
(F101), toluene diisocyanate storage tank (F102), raw material pump (J101, J102), reactor (D101), vacuum tank (F103),
Vavuum pump (J103)；Annexation between each part of process units is：Toluene diisocyanate storage tank (F102) with
Raw material pump (J102) is connected, and methyl diphenylene diisocyanate storage tank (F101) is connected with raw material pump (J101), reactor
(D101) it is connected respectively with raw material pump (J101, J102) and vacuum tank (F103), vavuum pump (J103) and vacuum tank (F103)
It is connected；Wherein, methyl diphenylene diisocyanate storage tank (F101) 7.5-8.5L of nominal volume, head thickness 6.5-
7..5mm；135-145mm of raw material pump (J101) impeller diameter；Reactor (D101) 3200-3500L of nominal volume, outer pot are straight
1800-1900mm of footpath.
A kind of 2. polyurethane sealant process units according to claim 1, it is characterised in that described diphenyl methane two
1450-1550mm of isocyanates storage tank (F101) barrel diameter.
A kind of 3. polyurethane sealant process units according to claim 1, it is characterised in that described reactor (D101)
1650-1750mm of interior pot diameter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808050.1A CN107793988A (en) | 2016-09-07 | 2016-09-07 | A kind of polyurethane sealant process units |
| GBGB1714146.6A GB201714146D0 (en) | 2016-09-07 | 2017-09-04 | A kind of polyurethane sealant production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808050.1A CN107793988A (en) | 2016-09-07 | 2016-09-07 | A kind of polyurethane sealant process units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107793988A true CN107793988A (en) | 2018-03-13 |
Family
ID=60050770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610808050.1A Pending CN107793988A (en) | 2016-09-07 | 2016-09-07 | A kind of polyurethane sealant process units |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107793988A (en) |
| GB (1) | GB201714146D0 (en) |
-
2016
- 2016-09-07 CN CN201610808050.1A patent/CN107793988A/en active Pending
-
2017
- 2017-09-04 GB GBGB1714146.6A patent/GB201714146D0/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB201714146D0 (en) | 2017-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |
|
| WD01 | Invention patent application deemed withdrawn after publication |