CN105924621A - Flame-retardant flexible polyurethane foam and method of preparation for same - Google Patents
Flame-retardant flexible polyurethane foam and method of preparation for same Download PDFInfo
- Publication number
- CN105924621A CN105924621A CN201610447602.0A CN201610447602A CN105924621A CN 105924621 A CN105924621 A CN 105924621A CN 201610447602 A CN201610447602 A CN 201610447602A CN 105924621 A CN105924621 A CN 105924621A
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- Prior art keywords
- flame
- retardant
- flexible foam
- polyurethane flexible
- foam plastics
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- 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
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
- C08G18/485—Polyethers containing oxyethylene units and other oxyalkylene units containing mixed oxyethylene-oxypropylene or oxyethylene-higher oxyalkylene end groups
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a flame-retardant flexible polyurethane foam, which is composed of a polyether polyol, a dispersant, TDI, water, flame-retardant silicone oil, a catalyst, and a flame retardant that is a nitrogenous flame retardant. The invention also provides a method of preparation for the flame-retardant flexible polyurethane foam, in which the polyether polyol, the nitrogenous flame retardant and the dispersant are mixed and stirred to form a component A, and subsequently, the water, the catalyst, a foam stabilizer, the TDI and the component A are mixed fast and evenly and then poured into a die for foaming, thereby obtaining the polyurethane foam. The flexible polyurethane foam provided by the invention employs the nitrogenous flame retardant that is low in production cost, high in flame-retarding characteristic, and low in volatilization as well as smoke-free and non-toxic during combustion, thereby guaranteeing the safety.
Description
[technical field]
The present invention relates to a kind of foam, refer in particular to a kind of flame-retardant polyurethane flexible foam plastics and preparation method thereof.
[background technology]
(Flexible Polyurethane Foam is called for short soft polyurethane foam, is commonly called as sea polyurethane soft foamed plastics
Cotton) refer to that there is certain elastic class flexibility polyurethane foam plastics, typically have that density is low, elastic recovery good, sound-absorbing,
The performances such as ventilative, insulation, are mainly used as furniture mat material, vehicle seat cushion material, various soft liner laminar composite.Work
Industry and civilian on also soft bubble is used as filtering material, deadener, packing, ornament materials, packaging material and heat-insulation and heat-preservation
Material etc..It is a kind of inflammable material, and in some field, it has certain flame-retardancy requirements to this kind of material, such as virgin
Car, automotive trim etc..Conventional way is typically to add phosphorus halogen compound in formula makes material reach certain fire-retardant rank,
On the one hand this based flame retardant itself is to have certain volatility and animal migration, also has certain abnormal smells from the patient, when sponge is as packing material
Time, anaphylaxis, the health of harm people may be produced during people's life-time service；On the other hand, phosphorus halogen fire retardant is added
Sponge burning time can discharge substantial amounts of poisonous and hazardous gas, bring potential risks to the use of people.
From the above, it can be seen that we need a kind of environmental protection, flexible polyurethane foam that fire resistance is high replaces
For traditional flame-retardant sponge.
[summary of the invention]
For above-mentioned technical problem of the prior art, the invention provides a kind of flame-retardant polyurethane flexible foam plastics and
Its preparation method, described flame-retardant polyurethane flexible foam plastics and preparation method thereof solve flame-retardant sponge in prior art and contain
There are phosphorus and halogen, thus cause user allergy, and combustion process produces toxic gas, the problem being detrimental to health.
In order to solve the technical problem of above-mentioned existence, the present invention uses following technical proposals:
A kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Described fire retardant is nitrogenous fire retardant, and described foam stabiliser is fire-retardant silicone oil.
Further, described fire retardant is tripolycyanamide.
Further, described polyether polyol be with glycerol as initiator, the hydroxyl value expoxy propane ring as 56mgKOH/g
Oxidative ethane copolyether.
Further, described dispersant is PE-40.
Further, described catalyst is the mixture of one or both arbitrary proportions in A33 and T9.
Further, described a kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Further, described a kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Further, described a kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
The preparation method of a kind of flame-retardant polyurethane flexible foam plastics, comprises the following steps that
(1) polyether polyol, fire retardant and dispersant are weighed according to mass ratio, then by above-mentioned material mix and blend, when mixed
Close stirring thing in be not greater than 1mm material time, stop stirring, stand 5～20S, obtain component A, then component A be extracted into
Foaming prepares in basin standby；
(2) weigh water, catalyst, foam stabiliser, TDI according to mass ratio, and above-mentioned material and component A are controlled respectively
In the environment of 22～26 DEG C standby；
(3) according to mass ratio, component A, water, catalyst, foam stabiliser, TDI are pumped into Horizontal foaming machine respectively
In mixing head, mix and blend 2～5S, mixing speed controls 4500～5000r/min, is injected in mould foaming, warp continuously
110～120S foamings, at room temperature ripening 7～8h, obtain flame-retardant polyurethane flexible foam plastics.
Compared with prior art, the invention has the beneficial effects as follows: the fire retardant that the polyurethane soft foamed plastics of the present invention uses
For nitrogenous flame ratardant, its production cost is low, flame-retarding characteristic is high, and volatilize less, burning the most nontoxic, secure at secure context.
Below in conjunction with detailed description of the invention, the present invention is described in further detail:
[detailed description of the invention]
Embodiment 1
A kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Described polyether polyol be with glycerol as initiator, the hydroxyl value expoxy propane oxirane as 56mgKOH/g altogether
Polyethers.
The preparation method of above-mentioned a kind of flame-retardant polyurethane flexible foam plastics, comprises the following steps that
(1) according to mass ratio, expoxy propane oxirane copolyether, tripolycyanamide and PE-40 are weighed, then by above-mentioned material
Mix and blend, when mixing stirring thing in be not greater than 1mm material time, stop stirring, stand 5S, obtain component A, then will
Component A is extracted in foaming preparation basin standby；
(2) weigh water, A33, fire-retardant silicone oil, TDI according to mass ratio, and above-mentioned material and component A are controlled respectively 22
DEG C environment in standby；
(3) according to mass ratio, component A, water, catalyst, foam stabiliser, TDI are pumped into Horizontal foaming machine respectively
In mixing head, mix and blend 2S, mixing speed controls at 4500r/min, is injected in mould foaming continuously, is foamed into through 110S
Type, at room temperature ripening 7h, obtain flame-retardant polyurethane flexible foam plastics.
Embodiment 2
A kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Described polyether polyol be with glycerol as initiator, the hydroxyl value expoxy propane oxirane as 56mgKOH/g altogether
Polyethers.
The preparation method of above-mentioned a kind of flame-retardant polyurethane flexible foam plastics, comprises the following steps that
(1) according to mass ratio, expoxy propane oxirane copolyether, tripolycyanamide and PE-40 are weighed, then by above-mentioned material
Mix and blend, when mixing stirring thing in be not greater than 1mm material time, stop stirring, stand 20S, obtain component A, then
Component A is extracted in foaming preparation basin standby；
(2) weigh water, A33, fire-retardant silicone oil, TDI according to mass ratio, and above-mentioned material and component A are controlled respectively 26
DEG C environment in standby；
(3) according to mass ratio, component A, water, catalyst, foam stabiliser, TDI are pumped into Horizontal foaming machine respectively
In mixing head, mix and blend 5S, mixing speed controls at 5000r/min, is injected in mould foaming continuously, is foamed into through 120S
Type, at room temperature ripening 8h, obtain flame-retardant polyurethane flexible foam plastics.
Embodiment 3
A kind of flame-retardant polyurethane flexible foam plastics, in parts by weight, its formula is:
Described polyether polyol be with glycerol as initiator, the hydroxyl value expoxy propane oxirane as 56mgKOH/g altogether
Polyethers.
The preparation method of above-mentioned a kind of flame-retardant polyurethane flexible foam plastics, comprises the following steps that
(1) according to mass ratio, expoxy propane oxirane copolyether, tripolycyanamide and PE-40 are weighed, then by above-mentioned material
Mix and blend, when mixing stirring thing in be not greater than 1mm material time, stop stirring, stand 5S, obtain component A, then will
Component A is extracted in foaming preparation basin standby；
(2) weigh water, T9, fire-retardant silicone oil, TDI according to mass ratio, and above-mentioned material and component A are controlled respectively at 24 DEG C
Environment in standby；
(3) according to mass ratio, component A, water, catalyst, foam stabiliser, TDI are pumped into Horizontal foaming machine respectively
In mixing head, mix and blend 4S, mixing speed controls at 4800r/min, is injected in mould foaming continuously, is foamed into through 115S
Type, at room temperature ripening 7.5h, obtain flame-retardant polyurethane flexible foam plastics.
Compared with traditional flame-retardant sponge, the present invention solves the additive flame retardant used by polyurethane soft foamed plastics
The serious safety problem existed for phosphorus halogen fire retardant, can bring the undesirable technical problems such as health hazard to user,
The fire retardant that the polyurethane soft foamed plastics of the present invention uses is nitrogenous flame ratardant, and its production cost is low, flame-retarding characteristic is high, and
And volatilization less, burning the most nontoxic, secure at secure context.
Although the present invention being described in detail with reference to above example, but by the disclosure, those skilled in the art are shown
And be clear to, and in the case of the principle and scope of the present invention limited without departing from described claim, can be right
The present invention makes a variety of changes or revises.Therefore, the detailed description of disclosure embodiment is only used for explaining rather than for limiting
The present invention, but it is defined by the subject-matter of the claims the scope of protection.
Claims (9)
1. flame-retardant polyurethane flexible foam plastics, it is characterised in that in parts by weight, its formula is:
Described fire retardant is nitrogenous fire retardant, and described foam stabiliser is fire-retardant silicone oil.
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 1, it is characterised in that described fire retardant is
Tripolycyanamide.
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 1, it is characterised in that described polyether polyols
Alcohol be with glycerol as initiator, the hydroxyl value expoxy propane oxirane copolyether as 56mgKOH/g.
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 1, it is characterised in that described dispersant is
PE-40。
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 1, it is characterised in that described catalyst is
The mixture of one or both arbitrary proportions in A33 and T9.
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 4, it is characterised in that according to parts by weight
Meter, its formula is:
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 4, it is characterised in that according to parts by weight
Meter, its formula is:
A kind of flame-retardant polyurethane flexible foam plastics the most according to claim 4, it is characterised in that according to parts by weight
Meter, its formula is:
9. the preparation method of flame-retardant polyurethane flexible foam plastics, it is characterised in that comprise the following steps that
(1) polyether polyol, fire retardant and dispersant are weighed according to mass ratio, then by above-mentioned material mix and blend, when mixing
Stirring thing is not greater than 1mm material time, stop stirring, stand 5～20S, obtain component A, then component A be extracted into foaming
Prepare in basin standby；
(2) weigh water, catalyst, foam stabiliser, TDI according to mass ratio, and above-mentioned material and component A are controlled respectively 22
～it is standby in the environment of 26 DEG C；
(3) according to mass ratio, component A, water, catalyst, foam stabiliser, TDI are pumped into respectively the mixing of Horizontal foaming machine
In Tou, mix and blend 2～5S, mixing speed controls 4500～5000r/min, is injected in mould foaming continuously, through 110～
120S foaming, at room temperature ripening 7～8h, obtain flame-retardant polyurethane flexible foam plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447602.0A CN105924621B (en) | 2016-06-18 | 2016-06-18 | A kind of flame-retardant polyurethane flexible foam plastics and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447602.0A CN105924621B (en) | 2016-06-18 | 2016-06-18 | A kind of flame-retardant polyurethane flexible foam plastics and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105924621A true CN105924621A (en) | 2016-09-07 |
| CN105924621B CN105924621B (en) | 2019-08-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583829A (en) * | 2004-05-26 | 2005-02-23 | 华南理工大学 | Method for preparing fire-retardant polyether by cyanuramide |
| CN102010587A (en) * | 2010-11-04 | 2011-04-13 | 滁州友林科技发展有限公司 | Method for preparing novel flame-retardant flexible polyurethane foam and product thereof |
| CN103289076A (en) * | 2013-05-07 | 2013-09-11 | 江苏长华聚氨酯科技有限公司 | Method for preparing flame retarding polyether from melamine |
-
2016
- 2016-06-18 CN CN201610447602.0A patent/CN105924621B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583829A (en) * | 2004-05-26 | 2005-02-23 | 华南理工大学 | Method for preparing fire-retardant polyether by cyanuramide |
| CN102010587A (en) * | 2010-11-04 | 2011-04-13 | 滁州友林科技发展有限公司 | Method for preparing novel flame-retardant flexible polyurethane foam and product thereof |
| CN103289076A (en) * | 2013-05-07 | 2013-09-11 | 江苏长华聚氨酯科技有限公司 | Method for preparing flame retarding polyether from melamine |
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| CN105924621B (en) | 2019-08-02 |
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