CN105542391A - Urea-formaldehyde molding powder and preparation method thereof - Google Patents
Urea-formaldehyde molding powder and preparation method thereof Download PDFInfo
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- CN105542391A CN105542391A CN201610071681.XA CN201610071681A CN105542391A CN 105542391 A CN105542391 A CN 105542391A CN 201610071681 A CN201610071681 A CN 201610071681A CN 105542391 A CN105542391 A CN 105542391A
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- urea
- formaldehyde
- powder
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- moulding powder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
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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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to urea-formaldehyde molding powder and a preparation method thereof. The urea-formaldehyde molding powder has the advantages that the disadvantage of adding of a large amount of wood pulp into a urea-formaldehyde molding powder prescription in the prior art is overcome, wood powder with larger output and low cost is used for replacing the wood pulp, a specified additive and surfactant are added, and the reaction contact between urea resin and the wood powder is tighter; under the condition of no influence on the quality of the urea-formaldehyde molding powder, the cost of the urea-formaldehyde molding powder is greatly lowered; the urea-formaldehyde molding powder is prepared by a one-step method, so that the technology is simpler and more convenient.
Description
Technical field
The present invention relates to Chemicals field, be specifically related to a kind of urea-formaldehyde moulding powder and preparation method thereof.
Background technology
Urea-formaldehyde moulding powder, also known as urea formaldehyde molded frit, is a kind of widely used thermosetting resin, and it is that matrix is added other weighting agent (paper pulp), remover, solidifying agent, pigment etc. and made through certain technique with urea-formaldehyde resin.Good certainly to put out because it has, arc resistance, and the advantage such as electrical insulating property is good, easy coloring, product size are stable, bright in colour, be widely used in the industries such as electronics, electrical equipment, automobile, machinery, daily utensil, modal familiar as electric appliance casing, switch on wall, toilet lid, mah-jong pieces, domino, chip, artwork etc.And in the formula of existing urea-formaldehyde moulding powder, often need the wood pulp component adding a large amount of log, could support, and the cost of log wood pulp is often very high, thus causes the cost of product urea-formaldehyde moulding powder to increase, and wood powder is as the byproduct in the log course of processing, its output is very large, and cost is lower, has very large prospect, and how to replace wood pulp to be added in the formula of urea-formaldehyde moulding powder wood powder, and be the urea-formaldehyde moulding powder performance made constant be problem demanding prompt solution.
Summary of the invention
In order to solve the shortcoming of prior art, the invention provides a kind of urea-formaldehyde moulding powder and preparation method thereof.
The technical solution that the present invention adopts is: a kind of urea-formaldehyde moulding powder, by massfraction, comprises following component: formaldehyde 25-30%, urea 31-35%, urotropine 2.6%, wood powder 25-35%, wood pulp 3.1-4.1%, single hard sweet fat glyceryl ester 0.12-0.15%, Zinic stearas 0.5-1.0%, PPG0.4-0.9%, TX-10 surfactant 0.2-0.7%, polyoxyethylene glycol 0.1-0.6%, barium sulfate 1.5-2.5%.
Also comprise pigment 0.1-1.3%.
A kind of urea-formaldehyde moulding powder, by massfraction, comprises following component: formaldehyde 25%, urea 31.38%, urotropine 2.6%, wood powder 33.5%, wood pulp 3.6%, single hard sweet fat glyceryl ester 0.12%, Zinic stearas 0.5%, PPG0.4%, TX-10 surfactant 0.2%, polyoxyethylene glycol 0.1%, barium sulfate 2%.
Also comprise pigment 0.6%.
A kind of preparation method of urea-formaldehyde moulding powder, comprise the following steps: in reaction vessel, add formaldehyde 25-30% in massfraction ratio, urea 31-35%, urotropine 2.6%, wood powder 25-35%, wood pulp 3.1-4.1%, single hard sweet fat glyceryl ester 0.12-0.15%, Zinic stearas 0.5-1.0%, PPG0.4-0.9%, TX-10 surfactant 0.2-0.7%, polyoxyethylene glycol 0.1-0.6%, barium sulfate 1.5-2.5%, mix post-heating, reaction is started at the temperature of 50-60 DEG C, pass into steam, until during 70-80 DEG C, stop passing into steam, continue to be heated to 90-100 DEG C, reaction 2.5-3 hour, finally obtain described product urea-formaldehyde moulding powder.
The invention has the beneficial effects as follows: a kind of urea-formaldehyde moulding powder and preparation method thereof, the present invention is directed to the shortcoming needing to add a large amount of wood pulp in prior art urea-formaldehyde moulding powder formula, the wood powder adopting output huge and cheap replaces wood pulp, coordinate the auxiliary agent and tensio-active agent that add and formulate, reaction between urea-formaldehyde resin with wood powder being contacted more tight, when not affecting urea-formaldehyde moulding powder quality, greatly reducing the cost of urea-formaldehyde moulding powder, and adopting single stage method preparation to produce urea-formaldehyde moulding powder, technique is more simple and convenient.
Embodiment
A kind of urea-formaldehyde moulding powder, by massfraction, comprises following component:
Formaldehyde 25-30%;
Urea 31-35%;
Urotropine 2.6%;
Wood powder 25-35%;
Wood pulp 3.1-4.1%;
Single hard sweet fat glyceryl ester 0.12-0.15%;
Zinic stearas 0.5-1.0%%;
PPG0.4-0.9%；
TX-10 surfactant 0.2-0.7%;
Polyoxyethylene glycol 0.1-0.6%;
Pigment 0.1-1.3%;
Barium sulfate 1.5-2.5%.
Concrete preferred version of filling a prescription is:
Formaldehyde 25%;
Urea 31.38%;
Urotropine 2.6%;
Wood powder 33.5%;
Wood pulp 3.6%;
Single hard sweet fat glyceryl ester 0.12%;
Zinic stearas 0.5%;
PPG0.4%；
TX-10 surfactant 0.2%;
Polyoxyethylene glycol 0.1%;
Pigment 0.6%;
Barium sulfate 2%.
The wood powder that the present invention adopts output huge and cheap replaces wood pulp, coordinate the auxiliary agent and tensio-active agent that add and formulate, reaction between urea-formaldehyde resin with wood powder being contacted more tight, when not affecting urea-formaldehyde moulding powder quality, greatly reducing the cost of urea-formaldehyde moulding powder.
The preparation method of urea-formaldehyde moulding powder of the present invention, comprise the following steps: in reaction vessel, add formaldehyde 25-30% in massfraction ratio, urea 31-35%, urotropine 2.6%, wood powder 25-35%, wood pulp 3.1-4.1%, single hard sweet fat glyceryl ester 0.12-0.15%, Zinic stearas 0.5-1.0%, PPG0.4-0.9%, TX-10 surfactant 0.2-0.7%, polyoxyethylene glycol 0.1-0.6%, barium sulfate 1.5-2.5%, mix post-heating, reaction is started at the temperature of 50-60 DEG C, pass into steam, until during 70-80 DEG C, stop passing into steam, continue to be heated to 90-100 DEG C, reaction 2.5-3 hour, finally obtain described product urea-formaldehyde moulding powder.
The present invention adopts single stage method to prepare and produces urea-formaldehyde moulding powder, and technique is more simple and convenient, and operation is also less.
Claims (5)
1. a urea-formaldehyde moulding powder, is characterized in that, by massfraction, comprise following component: formaldehyde 25-30%, urea 31-35%, urotropine 2.6%, wood powder 25-35%, wood pulp 3.1-4.1%, single hard sweet fat glyceryl ester 0.12-0.15%, Zinic stearas 0.5-1.0%, PPG0.4-0.9%, TX-10 surfactant 0.2-0.7%, polyoxyethylene glycol 0.1-0.6%, barium sulfate 1.5-2.5%.
2. a kind of urea-formaldehyde moulding powder according to claim 1, is characterized in that, by massfraction, also comprises pigment 0.1-1.3%.
3. a kind of urea-formaldehyde moulding powder according to claim 1, is characterized in that, by massfraction, comprise following component: formaldehyde 25%, urea 31.38%, urotropine 2.6%, wood powder 33.5%, wood pulp 3.6%, single hard sweet fat glyceryl ester 0.12%, Zinic stearas 0.5%, PPG0.4%, TX-10 surfactant 0.2%, polyoxyethylene glycol 0.1%, barium sulfate 2%.
4. a kind of urea-formaldehyde moulding powder according to claim 3, is characterized in that, by massfraction, also comprises pigment 0.6%.
5. the preparation method of a urea-formaldehyde moulding powder according to claim 1, it is characterized in that, comprise the following steps: in reaction vessel, add formaldehyde 25-30% in massfraction ratio, urea 31-35%, urotropine 2.6%, wood powder 25-35%, wood pulp 3.1-4.1%, single hard sweet fat glyceryl ester 0.12-0.15%, Zinic stearas 0.5-1.0%, PPG0.4-0.9%, TX-10 surfactant 0.2-0.7%, polyoxyethylene glycol 0.1-0.6%, barium sulfate 1.5-2.5%, mix post-heating, reaction is started at the temperature of 50-60 DEG C, pass into steam, until during 70-80 DEG C, stop passing into steam, continue to be heated to 90-100 DEG C, reaction 2.5-3 hour, finally obtain described product urea-formaldehyde moulding powder.
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| CN201610071681.XA CN105542391A (en) | 2016-02-02 | 2016-02-02 | Urea-formaldehyde molding powder and preparation method thereof |
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| CN201610071681.XA CN105542391A (en) | 2016-02-02 | 2016-02-02 | Urea-formaldehyde molding powder and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633985A (en) * | 2016-12-18 | 2017-05-10 | 钦州市科学技术开发中心 | Urea-formaldehyde molding powder and preparation method thereof |
| CN107936466A (en) * | 2017-11-30 | 2018-04-20 | 东莞菌怕怕科技实业有限公司 | A kind of manufacture method of the beautiful material of colorful electricity and its electric beautiful product |
| CN108676322A (en) * | 2018-06-21 | 2018-10-19 | 苏州新益特塑胶科技有限公司 | A kind of safety durable urea-formaldehyde moulding powder |
Citations (5)
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| CN101864143A (en) * | 2010-06-29 | 2010-10-20 | 冯绍华 | Material special for wood-like amino film plastics |
| CN101921454A (en) * | 2010-05-21 | 2010-12-22 | 常州乔尔塑料有限公司 | Novel low-shrinkage amino moulding compound and preparation method thereof |
| CN104277415A (en) * | 2014-10-14 | 2015-01-14 | 常州乔尔塑料有限公司 | Long-acting antibacterial amino molding compound |
| CN104761868A (en) * | 2014-01-04 | 2015-07-08 | 陈天云 | Environmentally-friendly fast-curing long-storage-time amino molded granule and production method thereof |
| CN105086356A (en) * | 2014-05-22 | 2015-11-25 | 溧阳市乔森塑料有限公司 | Modified urea formaldehyde molding compound and preparation method thereof |
-
2016
- 2016-02-02 CN CN201610071681.XA patent/CN105542391A/en active Pending
Patent Citations (5)
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| CN101921454A (en) * | 2010-05-21 | 2010-12-22 | 常州乔尔塑料有限公司 | Novel low-shrinkage amino moulding compound and preparation method thereof |
| CN101864143A (en) * | 2010-06-29 | 2010-10-20 | 冯绍华 | Material special for wood-like amino film plastics |
| CN104761868A (en) * | 2014-01-04 | 2015-07-08 | 陈天云 | Environmentally-friendly fast-curing long-storage-time amino molded granule and production method thereof |
| CN105086356A (en) * | 2014-05-22 | 2015-11-25 | 溧阳市乔森塑料有限公司 | Modified urea formaldehyde molding compound and preparation method thereof |
| CN104277415A (en) * | 2014-10-14 | 2015-01-14 | 常州乔尔塑料有限公司 | Long-acting antibacterial amino molding compound |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633985A (en) * | 2016-12-18 | 2017-05-10 | 钦州市科学技术开发中心 | Urea-formaldehyde molding powder and preparation method thereof |
| CN107936466A (en) * | 2017-11-30 | 2018-04-20 | 东莞菌怕怕科技实业有限公司 | A kind of manufacture method of the beautiful material of colorful electricity and its electric beautiful product |
| CN108676322A (en) * | 2018-06-21 | 2018-10-19 | 苏州新益特塑胶科技有限公司 | A kind of safety durable urea-formaldehyde moulding powder |
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Application publication date: 20160504 |