CN106832216A - Polyurethane trundle and preparation method thereof - Google Patents
Polyurethane trundle and preparation method thereof Download PDFInfo
- Publication number
- CN106832216A CN106832216A CN201710106246.0A CN201710106246A CN106832216A CN 106832216 A CN106832216 A CN 106832216A CN 201710106246 A CN201710106246 A CN 201710106246A CN 106832216 A CN106832216 A CN 106832216A
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- CN
- China
- Prior art keywords
- ppg
- preparation
- polyurethane
- ddl
- parts
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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
- C08G18/70—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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
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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)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to polyurethane product technical field, and in particular to a kind of polyurethane trundle and preparation method thereof.Described castor, is prepared from the following raw materials in parts by weight：60~80 parts of PPG DDL 1000D；20~40 parts of PPG DDL 3000D；PPDI23~75 part；4.5~20 parts of curing agent；Its preparation method is：First, PPG DDL 1000D and PPG DDL 3000D are vacuumized into dehydration, cooling adds PPDI, synthesizes performed polymer, then, is poured into mould after adding curing agent well mixed, the demoulding, vulcanization obtains product.The present invention prepare polyurethane trundle, with high mechanical strength, high capacity, acid and alkali-resistance, rotate when do not destroy ground, impact resistance, wearability is good, fatigue durability is good, hydrolysis, wear-resisting, Applicable temperature scope is wide the characteristics of；It is simple easily to implement present invention simultaneously provides its preparation method.
Description
Technical field
The invention belongs to polyurethane product technical field, and in particular to a kind of polyurethane trundle and preparation method thereof.
Background technology
Industry, business, medicine equipment and machinery, logistics transportation, environment-protecting clean articles for use, furniture industry, beauty treatment instrument, food
The every profession and trades such as product machinery, hardware production all be unable to do without castor, and the material of present castor mainly has the materials such as nylon, plastics, rubber,
And these materials exist weight capacity it is poor, not acid and alkali-resistance, noise is big when rotating, destruction ground, not impact resistance the shortcomings of.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of polyurethane trundle, with high mechanical strength, hold
Carry that power is high, acid and alkali-resistance, it is quiet when rotating, do not destroy ground, impact resistance, wearability is good, fatigue durability is good, hydrolysis, wear-resisting, anti-
The characteristics of water, wide Applicable temperature scope；Present invention simultaneously provides its simple preparation method easily implemented.
Polyurethane trundle of the present invention, is prepared from the following raw materials in parts by weight：
Wherein：
Described PPG DDL-1000D is 2 degrees of functionality, the PPG of number-average molecular weight 1000.The polyethers
By Zibo moral letter, federal chemistry Industrial Co., Ltd produces, and the product strength made of this kind of polyalcohol is high etc..
Described PPG DDL-3000D is 2 degrees of functionality, the PPG of number-average molecular weight 3000.The polyethers
By Zibo moral letter, federal chemistry Industrial Co., Ltd produces, good, good toughness of product elasticity made of this kind of polyalcohol etc..
PPDI, PPDI, products machinery intensity is high, wearability, fatigue durability are good.
Described curing agent is 1,4- butanediols.With the NCO group reaction in performed polymer, solidified forming.
The preparation method of described polyurethane trundle, step is as follows：
First, PPG DDL-1000D and PPG DDL-3000D are vacuumized at 100~120 DEG C de-
1.5~2.0h of water, adds PPDI after being cooled to 45~55 DEG C, the pre-polymerization that NCO mass contents are 5~18% is synthesized at 70~80 DEG C
Body, then, pours into mould, the demoulding after 20~45min after adding curing agent well mixed, vulcanize 8 at 100~110 DEG C~
12h, obtains product.
Described mixing temperature is 75 DEG C~85 DEG C.
In sum, compared with prior art, beneficial effects of the present invention are as follows：
(1) complex role between each component of the present invention, the polyurethane trundle of preparation, with high mechanical strength, high capacity, resistance to
Soda acid, rotate when it is quiet, do not destroy ground, impact resistance, wearability is good, fatigue durability is good, hydrolysis, wear-resisting, waterproof, applicable for temperature
The characteristics of degree scope is wide.
(2) it is simple easily to implement present invention simultaneously provides its preparation method.
Specific embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
Described polyurethane trundle, is prepared from the following raw materials in parts by weight：
Its preparation method is as follows：
First, PPG DDL-1000D and PPG DDL-3000D are vacuumized into dehydration at 100 DEG C
1.5h, adds PPDI after being cooled to 45 DEG C, the performed polymer that NCO mass contents are 5% is synthesized at 70 DEG C, then, adds Isosorbide-5-Nitrae-fourth
During glycol pours into mould after being well mixed at 75 DEG C, the demoulding after 20min vulcanizes 8h at 100 DEG C, obtains polyurethane trundle product
Product.
Embodiment 2
Described polyurethane trundle, is prepared from the following raw materials in parts by weight：
Its preparation method is as follows：
First, PPG DDL-1000D and PPG DDL-3000D is vacuumized into dehydration 1.8h at 110 DEG C,
PPDI is added after being cooled to 50 DEG C, the performed polymer that NCO mass contents are 11.5% is synthesized at 75 DEG C, then, add Isosorbide-5-Nitrae-fourth two
During alcohol pours into mould after being well mixed at 80 DEG C, the demoulding after 30min vulcanizes 10h at 105 DEG C, obtains polyurethane trundle product.
Embodiment 3
Described polyurethane trundle, is prepared from the following raw materials in parts by weight：
Its preparation method is as follows：
First, PPG DDL-1000D and PPG DDL-3000D is vacuumized into dehydration 2.0h at 120 DEG C,
PPDI is added after being cooled to 55 DEG C, the performed polymer that NCO mass contents are 18% is synthesized at 80 DEG C, then, add BDO
In pouring into mould after being well mixed at 85 DEG C, the demoulding after 45min vulcanizes 12h at 110 DEG C, obtains polyurethane trundle product.
Claims (6)
1. a kind of polyurethane trundle, it is characterised in that：It is prepared from the following raw materials in parts by weight：
2. polyurethane trundle according to claim 1, it is characterised in that：Described PPG DDL-1000D is 2 officials
Energy degree, the PPG of number-average molecular weight 1000.
3. polyurethane trundle according to claim 1, it is characterised in that：Described PPG DDL-3000D is 2 officials
Energy degree, the PPG of number-average molecular weight 3000.
4. polyurethane trundle according to claim 1, it is characterised in that：Described curing agent is 1,4- butanediols.
5. the preparation method of any described polyurethane trundles of a kind of claim 1-4, it is characterised in that：Step is as follows：First,
PPG DDL-1000D and PPG DDL-3000D are vacuumized into 1.5~2.0h of dehydration at 100~120 DEG C,
PPDI is added after being cooled to 45~55 DEG C, the performed polymer that NCO mass contents are 5~18% is synthesized at 70~80 DEG C, then, added
Poured into mould after curing agent is well mixed, the demoulding after 20~45min vulcanizes 8~12h at 100~110 DEG C, obtains product.
6. the preparation method of polyurethane trundle according to claim 5, it is characterised in that：Described mixing temperature be 75~
85℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106246.0A CN106832216A (en) | 2017-02-24 | 2017-02-24 | Polyurethane trundle and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106246.0A CN106832216A (en) | 2017-02-24 | 2017-02-24 | Polyurethane trundle and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106832216A true CN106832216A (en) | 2017-06-13 |
Family
ID=59134273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710106246.0A Pending CN106832216A (en) | 2017-02-24 | 2017-02-24 | Polyurethane trundle and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106832216A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644225A (en) * | 2020-12-29 | 2021-04-13 | 永佳工业车辆(苏州)有限公司 | Cart caster with steering positioning brake mechanism and manufacturing method thereof |
| CN112724657A (en) * | 2020-12-29 | 2021-04-30 | 永佳工业车辆(苏州)有限公司 | Structurally optimized compression-resistant wear-resistant polyurethane caster and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633717A (en) * | 2009-08-27 | 2010-01-27 | 黎明化工研究院 | High-hardness high-rebound polyurethane elastomer material and application thereof |
| CN104974329A (en) * | 2015-06-25 | 2015-10-14 | 淄博德信联邦化学工业有限公司 | Polyurethane shoe sole and manufacturing method thereof |
| CN105001398A (en) * | 2015-06-25 | 2015-10-28 | 淄博德信联邦化学工业有限公司 | Polyurethane safety fan blade and preparation method thereof |
| CN105237732A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Polyurethane robot and preparation method thereof |
-
2017
- 2017-02-24 CN CN201710106246.0A patent/CN106832216A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633717A (en) * | 2009-08-27 | 2010-01-27 | 黎明化工研究院 | High-hardness high-rebound polyurethane elastomer material and application thereof |
| CN104974329A (en) * | 2015-06-25 | 2015-10-14 | 淄博德信联邦化学工业有限公司 | Polyurethane shoe sole and manufacturing method thereof |
| CN105001398A (en) * | 2015-06-25 | 2015-10-28 | 淄博德信联邦化学工业有限公司 | Polyurethane safety fan blade and preparation method thereof |
| CN105237732A (en) * | 2015-11-13 | 2016-01-13 | 淄博正大聚氨酯有限公司 | Polyurethane robot and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644225A (en) * | 2020-12-29 | 2021-04-13 | 永佳工业车辆(苏州)有限公司 | Cart caster with steering positioning brake mechanism and manufacturing method thereof |
| CN112724657A (en) * | 2020-12-29 | 2021-04-30 | 永佳工业车辆(苏州)有限公司 | Structurally optimized compression-resistant wear-resistant polyurethane caster 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: 20170613 |