CN102408669A - Fly ash fiber modified phenolic molding compound and manufacture method thereof - Google Patents
Fly ash fiber modified phenolic molding compound and manufacture method thereof Download PDFInfo
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- CN102408669A CN102408669A CN2011102678862A CN201110267886A CN102408669A CN 102408669 A CN102408669 A CN 102408669A CN 2011102678862 A CN2011102678862 A CN 2011102678862A CN 201110267886 A CN201110267886 A CN 201110267886A CN 102408669 A CN102408669 A CN 102408669A
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Abstract
The invention relates to a phenolic molding compound and provides a pollution-free low-cost fly ash fiber modified phenolic molding compound and a manufacture method thereof. Raw materials for the molding compound comprises, by mass, 25% to 50% of a phenolic resin, 4% to 10% of a curing agent, 0.5% to 4% of a curing accelerator, 5% to 25% of fly ash fibers, 10% to 45% of an organic filling material, 5% to 30% of an inorganic filling material, 1% to 3% of a lubricant, 0 to 10% of a fire retardant and 0 to 8% of pigments. The manufacture method comprises the following steps: crushing and mixing the raw materials so as to obtain a mixture; subjecting the mixture to cooling and granulation after rubber milling so as to obtain the fly ash fiber modified phenolic molding compound.
Description
Technical field
The present invention relates to a kind of phenolaldehyde moulding compound, especially relate to a kind of phenolaldehyde moulding compound and method of manufacture thereof that adopts the coal ash fiber modification.
Background technology
Phenolaldehyde moulding compound is the thermoset general-purpose plastics.With the phenolaldehyde moulding compound of natural mineral fiber asbestos modification, have the characteristic of anti-impact, heat-resisting, difficult combustion, in phenolaldehyde moulding compound, constitute a class by itself and be widely used.After finding the hazardness of asbestos to HUMAN HEALTH the eighties in 20th century, asbestos are classified as environment and are limited the use of material.Over more than 20 year, the rarely seen spun glass modified phenolic moulding compound that substitutes the practical application of asbestos modified phenolic moulding compound input is a kind of.Can be tantamount to asbestos modified phenolic moulding compound on the spun glass modified phenolic moulding compound performance; But the price of glass is several times as much as natural asbestos; And the glass micronic dust that production process produces produces strong impulse to human body skin, thereby has greatly limited its production and use.Carbon fiber modifying phenolaldehyde moulding compound as for more high-grade still rests on the bibliographical information basically.
Coal ash fiber is formed through melting, jetting by industrial flyash; The product that belongs to the industrial solid castoff recycling; Price is lower than asbestos; And do not see to have to belong to the report that environment limits the use of material, be more common in the material of construction that is used for making insulation, sound insulation and so in the past, have part to substitute the report of organic fibre in recent years yet as paper making raw material.
Chinese patent CN101974198A discloses a kind of high temperature resistance phenolic aldehyde moulding compound, is made up of the raw material of following weight part ratio: 25～40 parts in resol; 2～10 parts of thermosetting resins; 3～8 parts in solidifying agent; 1～3 part of promotor; 15～40 parts of fortifying fibres; 0.5～2 part of interface modifier; 0.5～2.5 part of releasing agent; 10～40 parts of mineral fillers.
The present inventor discloses a kind of plastic of phenolic aldehyde mould in no ammonia type and method of manufacture thereof in Chinese patent CN1958662, its component and content are acid catalysis solid thermoplastics resol 20%～50%.Solidifying agent is at least a in melamine formaldehyde resin, the urea-formaldehyde resin, content 10%～45%.Curing catalyst is at least a in Natural manganese dioxide, Marinco H, quicklime, the calcium hydroxide, content 0.5%～4%.Organic filler is at least a in wood, bamboo, cotton, the harl powder, content 10%～40%.Mineral filler is at least a in lime carbonate, talcum, mica, quartz, the asbestos powder, content 10%～40%.Lubricant is at least a in Triple Pressed Stearic Acid, Zinic stearas, the ethylene stearylamide, content 1%～3%.
Summary of the invention
The objective of the invention is to asbestos modified phenolic moulding compound and the existing shortcoming of glass modified phenolic moulding compound, a kind of nuisanceless, coal ash fiber modified phenolic moulding compound and method of manufacture thereof cheaply are provided.
Its raw material of said coal ash fiber modified phenolic moulding compound is formed and content by mass percentage is:
Resol 25%～50%, solidifying agent 4%～10%, curing catalyst 0.5%～4%, coal ash fiber 5%～25%, organic filler 10%～45%, mineral filler 5%～30%, lubricant 1%～3%, fire retardant 0～10%, colorant 0～8%.
Said resol can adopt acid catalysis solid thermoplastics resol etc.
Said solidifying agent can adopt hexamethylenetetramine etc.
At least a in MOXs such as the optional autoxidation magnesium of said curing catalyst, Marinco H, quicklime, calcium hydroxide and oxyhydroxide etc.
Said organic filler can be selected from least a in wood, bamboo, cotton, the harl powder etc.
Said mineral filler can be selected from least a in lime carbonate, talcum, mica, the quartz etc.
Said lubricant can be selected from least a in Triple Pressed Stearic Acid, the Zinic stearas etc.
Like other product of the higher flame retardant grade of needs, can select for use not belong to the fire retardant that environment limits the use of material, like white lake etc.
Like the product of needs band color, can select for use not belong to the colorant that environment limits the use of material, like nigrosine, the blue or green orchid of phthalein etc.
The method of manufacture of said coal ash fiber modified phenolic moulding compound may further comprise the steps:
1) with mixing after each raw material pulverizing, gets compound;
2) compound is refined glue after, the cooling, granulation, coal ash fiber modified phenolic moulding compound.
In step 1), the granularity specific requirement of said each raw material pulverizing is: resol all-pass 40 mesh sieves; Solidifying agent, organic filler all-pass 80 mesh sieves; Curing catalyst, mineral filler all-pass 120 mesh sieves; Coal ash fiber, lubricant are by original state.
In step 2) in, the concrete technology and the processing condition of said refining glue can be: the refining of opening rubber mixing machine roller, and the roller temperature scope: 70～90 ℃ on bag roller, warming mill is 140～160 ℃; Roller spacing range 2.5～5.0mm.According to the material reaction degree, plastic emitting after quality index meets the requirements.Saidly be cooled to the cooling of naturally cooling or force air.The particle diameter of said granulation can be 1.0～6.0mm.
When adopting and the identical prescription of asbestos modified phenolic moulding compound; During only with coal ash fiber equivalent substitution asbestos; Coal ash fiber modified phenolic moulding compound is suitable with asbestos modified phenolic moulding compound performance; But the former demonstrates good especially flowing property, explains that coal ash fiber has good plastification.
Table 1 is depicted as this two kinds of moulding compound formula rate structure contrasts.Table 2 is depicted as this two kinds of moulding compound performance comparison.Utilize the good plasticising performance of coal ash fiber, can reduce resol consumption 5%～15% in the moulding compound, corresponding increase amount of filler.And because resol is the higher raw material of price, so the moulding compound manufacturing cost can reduce by 3%～8%.Table 3 is depicted as spun glass modification and two kinds of phenolaldehyde moulding compound formula rates of the coal ash fiber modification structure contrast that reduces resol consumption 14%.Table 4 is depicted as this two kinds of moulding compound performance comparison.
The modification of table 1 asbestos and two kinds of phenolaldehyde moulding compound formula rates of coal ash fiber modification structure contrast table (kg)
| Raw material | Asbestos modified phenolic moulding compound | Coal ash fiber modified phenolic moulding compound |
| Resol | 36 | 36 |
| Hexamethylenetetramine | 6 | 6 |
| Asbestos | 8 | 0 |
| Coal ash fiber | 0 | 8 |
| Lime carbonate | 21 | 21 |
| The bamboo powder | 25 | 25 |
| Zinic stearas | 2 | 2 |
| Natural manganese dioxide | 1 | 1 |
| Nigrosine | 1 | 1 |
The modification of table 2 asbestos and two kinds of phenolaldehyde moulding compound performance comparison of coal ash fiber modification table
| Performance | Asbestos modified phenolic moulding compound | Coal ash fiber modified phenolic moulding compound |
| Mobile (mm) | 175 | 190 |
| Shock strength (kJ/m 2) | 1.8 | 1.8 |
| Electrical strength (kV/mm) | 10.5 | 12.2 |
| Flexural strength (MPa) | 76 | 72 |
The modification of table 3 glass and two kinds of phenolaldehyde moulding compound formula rates of coal ash fiber modification structure contrast table (kg)
| Raw material | Glass modified phenolic moulding compound | Coal ash fiber modified phenolic moulding compound |
| Resol | 35 | 30 |
| Hexamethylenetetramine | 6 | 6 |
| Spun glass | 10 | 0 |
| Coal ash fiber | 0 | 10 |
| Lime carbonate | 20 | 22 |
| The bamboo powder | 25 | 28 |
| Zinic stearas | 2 | 2 |
| Natural manganese dioxide | 1 | 1 |
| Nigrosine | 1 | 1 |
The modification of table 4 glass and two kinds of phenolaldehyde moulding compound performance comparison of coal ash fiber modification table
| Performance | Glass modified phenolic moulding compound | Coal ash fiber modified phenolic moulding compound |
| Mobile (mm) | 173 | 173 |
| Shock strength (kJ/m 2) | 1.7 | 1.7 |
| Electrical strength (kV/mm) | 11.5 | 11.8 |
| Flexural strength (MPa) | 75 | 73 |
Compare with existing phenolaldehyde moulding compound; Outstanding advantage of the present invention is following: 1) coal ash fiber modified phenolic moulding compound performance can be suitable with asbestos modification, glass modified phenolic moulding compound; But it is non-harmful environmentally friendly machine, and the raw materials for production cost is significantly less than glass modified phenolic moulding compound.2) coal ash fiber modified phenolic moulding compound also is the product of industrial solid castoff recycling.3) coal ash fiber inherent plasticising performance can reduce the consumption of high value resol in the phenolaldehyde moulding compound, increases the consumption of low value filler, further reduces the manufacturing cost of phenolaldehyde moulding compound.
Embodiment
Following examples will be further described the present invention.
Embodiment 1: various powder raw materials are mixed by following component and content.
Solid thermoplastics resol 40kg, hexamethylenetetramine 7kg, coal ash fiber 13kg, Natural manganese dioxide 1kg, lime carbonate 8kg, bamboo powder 28kg, Zinic stearas 2kg, nigrosine 1kg.
Mixed powder is carried out the roller refining in opening rubber mixing machine, roller temperature: the bag roller is 90 ℃, and warming mill is 145 ℃; The roller spacing is 4.0mm, and the roller rest tube rotates the rubbing and pressure power that forms, after turning over glue diffusion and reaction, and according to the material reaction degree, plastic emitting after quality index meets the requirements, granulation after the force air cooling, granulation particle size distribution range 1.0～6.0mm.
Embodiment 2～5: making the raw material total amount is 100kg, and the consumption of each component is seen table 1.Process step and embodiment 1 are similar, and processing parameter is seen table 2.The feed composition of the coal ash fiber modified phenolic moulding compound of embodiment 2～5 and content are referring to table 5, and the rubber mixing technique parameter of each embodiment is referring to table 6.
The coal ash fiber modified phenolic moulding compound feed composition of table 5 embodiment 2～5 and content (kg)
The coal ash fiber modified phenolic moulding compound fabrication process parameters of table 6 embodiment 2～5
| Embodiment | The bag roll temperature (℃) | Heating roller temperature (℃) | Roller spacing (mm) | Product cut size (mm) |
| 2 | 75 | 140 | 3 | 1.0～6.0 |
| 3 | 80 | 145 | 4 | 1.0～6.0 |
| 4 | 80 | 145 | 4 | 1.0～6.0 |
| 5 | 85 | 150 | 4 | 1.0～6.0 |
Claims (10)
1. coal ash fiber modified phenolic moulding compound is characterized in that its raw material is formed with by mass percentage content and is:
Resol 25%～50%, solidifying agent 4%～10%, curing catalyst 0.5%～4%, coal ash fiber 5%～25%, organic filler 10%～45%, mineral filler 5%～30%, lubricant 1%～3%, fire retardant 0～10%, colorant 0～8%.
2. a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that said resol adopts acid catalysis solid thermoplastics resol.
3. a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that said solidifying agent adopts hexamethylenetetramine; Said curing catalyst preferably is selected from least a in Natural manganese dioxide, Marinco H, quicklime, calcium hydroxide MOX and the oxyhydroxide.
4. a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that said organic filler is selected from least a in wood, bamboo, cotton, the harl powder; Said mineral filler preferably is selected from least a in lime carbonate, talcum, mica, the quartz.
5. a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that said lubricant is selected from least a in Triple Pressed Stearic Acid, the Zinic stearas.
6. a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that said fire retardant adopts white lake; Said colorant can be selected from nigrosine or phthalein is blue or green blue.
7. the method for manufacture of a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 1 is characterized in that may further comprise the steps:
1) with mixing after each raw material pulverizing, gets compound;
2) compound is refined glue after, the cooling, granulation, coal ash fiber modified phenolic moulding compound.
8. the method for manufacture of a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 7 is characterized in that in step 1), and the granularity specific requirement of said each raw material pulverizing is: resol all-pass 40 mesh sieves; Solidifying agent, organic filler all-pass 80 mesh sieves; Curing catalyst, mineral filler all-pass 120 mesh sieves.
9. the method for manufacture of a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 7; It is characterized in that in step 2) in; The concrete technology and the processing condition of said refining glue are: the refining of opening rubber mixing machine roller, and the roller temperature scope: 70～90 ℃ on bag roller, warming mill is 140～160 ℃; Roller spacing range 2.5～5.0mm.
10. the method for manufacture of a kind of coal ash fiber modified phenolic moulding compound as claimed in claim 7 is characterized in that in step 2) in, saidly be cooled to the cooling of naturally cooling or force air; The particle diameter of said granulation can be 1.0～6.0mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267886 CN102408669B (en) | 2011-09-09 | 2011-09-09 | Fly ash fiber modified phenolic molding compound and manufacture method thereof |
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|---|---|---|---|
| CN 201110267886 CN102408669B (en) | 2011-09-09 | 2011-09-09 | Fly ash fiber modified phenolic molding compound and manufacture method thereof |
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| CN102408669A true CN102408669A (en) | 2012-04-11 |
| CN102408669B CN102408669B (en) | 2013-05-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160074A (en) * | 2013-04-02 | 2013-06-19 | 厦门柯依达工贸有限公司 | Utilization method of waste residue in treatment of phenolic resin production wastewater |
| CN103319848A (en) * | 2013-06-09 | 2013-09-25 | 吴江市董鑫塑料包装厂 | Preparation method of carbon fiber reinforced plastics |
| CN103319849A (en) * | 2013-06-09 | 2013-09-25 | 吴江市董鑫塑料包装厂 | Carbon fiber reinforced plastic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958662A (en) * | 2006-10-30 | 2007-05-09 | 林良菽 | Plastic of phenolic aldehyde mould in no ammonia type, and manufacturing method |
| CN101225205A (en) * | 2007-01-16 | 2008-07-23 | 华东理工大学 | Coal ash fiber cotton reinforced chloroethylene composite material and preparation method thereof |
| CN101974198A (en) * | 2010-10-14 | 2011-02-16 | 常熟东南塑料有限公司 | Heat-resisting phenolic moulding compound |
-
2011
- 2011-09-09 CN CN 201110267886 patent/CN102408669B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958662A (en) * | 2006-10-30 | 2007-05-09 | 林良菽 | Plastic of phenolic aldehyde mould in no ammonia type, and manufacturing method |
| CN101225205A (en) * | 2007-01-16 | 2008-07-23 | 华东理工大学 | Coal ash fiber cotton reinforced chloroethylene composite material and preparation method thereof |
| CN101974198A (en) * | 2010-10-14 | 2011-02-16 | 常熟东南塑料有限公司 | Heat-resisting phenolic moulding compound |
Non-Patent Citations (1)
| Title |
|---|
| 耿耀辉: "粉煤灰填充酚醛模塑料", 《塑料工业》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160074A (en) * | 2013-04-02 | 2013-06-19 | 厦门柯依达工贸有限公司 | Utilization method of waste residue in treatment of phenolic resin production wastewater |
| CN103319848A (en) * | 2013-06-09 | 2013-09-25 | 吴江市董鑫塑料包装厂 | Preparation method of carbon fiber reinforced plastics |
| CN103319849A (en) * | 2013-06-09 | 2013-09-25 | 吴江市董鑫塑料包装厂 | Carbon fiber reinforced plastic |
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| CN102408669B (en) | 2013-05-01 |
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