CN104045967A - Phenolic molding plastic for gas meter rotor and preparation method of phenolic molding plastic - Google Patents
Phenolic molding plastic for gas meter rotor and preparation method of phenolic molding plastic Download PDFInfo
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- CN104045967A CN104045967A CN201410253750.XA CN201410253750A CN104045967A CN 104045967 A CN104045967 A CN 104045967A CN 201410253750 A CN201410253750 A CN 201410253750A CN 104045967 A CN104045967 A CN 104045967A
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Abstract
The invention discloses a phenolic molding plastic for a gas meter rotor and a preparation method of the phenolic molding plastic, and belongs to the technical field of thermosetting mould plastics and preparation thereof. The phenolic molding plastic consists of the following raw materials in parts by weight: 20-35 parts of phenolic resin, 4-10 parts of curing agent, 10-20 parts of inorganic reinforced fibers, 10-25 parts of organic fibers, 5-10 parts of nano reinforcing powder, 0.5-2.0 parts of coupling agent, 0.2-2.0 parts of mould release agent and 10-30 parts of lubricating filler. The phenolic molding plastic disclosed by the invention has better lubricating performance and sealing performance; alkali-free chopped glass fibers and nano reinforcing powder are added, and are compounded and coupled with the coupling agent to obtain excellent mechanical performance and heat resistance. And therefore, the phenolic molding plastic can satisfy expected requirements, and is used for manufacturing the gas meter rotor; the production process is the same as that of the common phenolic molding plastic, and suitable for industrial high-efficiency large-scale production; raw materials adopted in the formula are simple and easy to obtain, and product cost is relatively low, and expected requirements are satisfied.
Description
Technical field
The invention belongs to duroplastic moulding materials and preparing technical field thereof, be specifically related to a kind of gas meter rotor phenolaldehyde moulding compound, and relate to its preparation method.
Background technology
Phenolaldehyde moulding compound is taking novolac resin or heat-reactive phenolic resin as matrix, adds organic and inorganic filler and other Synergist S-421 95 processes.Resol and moulding compound thereof are the kinds of suitability for industrialized production the earliest in synthetic resins, plastics, so far the history of existing nearly more than 100 years.Raw material sources based on them are wider, production technique is terse and equipment is simple, forming process is good, price is cheaper, and can obtain very good resistance toheat, mechanical property, electrical property, thermal characteristics, ablation property, chemical property and radiation resistance by all means, especially there is good flame retardant properties, the low rate of being fuming, seldom produce obnoxious flavour, become machinery, electric, building, mining, national defence and the indispensable material of other industrial sector.
In fact, gas meter is similar to a counting flowmeter, has the rotor that a material is plastics, though this rotor volume is little and structure looks are looked simply, it is the vitals of gas meter exactly.Particularly, due to gas meter for medium be coal gas, again due to coal gas both can be people provide production, life just, but be also attended by self-evident danger, once leakage for example occurs can be affected safety and even lead to the accident of not wishing appearance, also due to the many factors of gas meter generation gas leak come from the stopping property of rotor, thereby conventionally except requiring rotor to have excellent self-lubricating property, also require it to there is ultimate attainment sealing property simultaneously.
Chinese invention patent application publication No. CN103214785A recommends to have " a kind of high temperature resistant self-lubricating phenolic composite ", although this patent application scheme has the famous good heat resistance of its specification sheets, stable self-lubricity energy and good compressive strength, but because the Service Environment of gas meter rotor is the coal gas with certain pressure, thereby when " the high temperature resistant self-lubricating phenolic composite " that obtained by this patent application scheme being made into rotor and during for gas meter, self-lubricating property is still not enough to reach the expection of industry, and its sealing property is relatively fragile.In addition, because this patent application scheme exists preparation process complexity, processing requirement is harsh and raw and auxiliary material cost is high shortcoming, thereby and be not suitable for industrial amplification production requirement.
Because the use of common phenolaldehyde moulding compound in gas meter industry is subject to strict restriction, thereby still main dependence on import of the phenolaldehyde moulding compound that China's gas meter rotor is used up to now.Be necessary that in view of this autonomous angle of the industry that stands in is explored, the applicant has carried out long-term concern and has done repeatedly and good try and test have formed technical scheme described below finally for this reason.
Summary of the invention
Top priority of the present invention is to provide a kind of and contributes to significantly to improve self-lubricating property and sealing property and use the gas meter rotor phenolaldehyde moulding compound that ensures lasting safety in utilization.
Another task of the present invention is to provide the preparation method of a kind of gas meter rotor phenolaldehyde moulding compound, and the method preparation technology is easy, technical factor is not harsh and can ensure that phenolaldehyde moulding compound holds concurrently excellent oilness and desirable sealing property and obtain it.
Top priority of the present invention completes like this, a kind of gas meter rotor phenolaldehyde moulding compound, and it is to be made up of the raw material of following parts by weight proportioning:
In a specific embodiment of the present invention, described resol is thermoplastic novolac phenolic resin.
In another specific embodiment of the present invention, described solidifying agent is hexamethylenetetramine.
In another specific embodiment of the present invention, described inorganic reinforcing fiber is the alkali-free short glass fiber of length at 3mm.
In another specific embodiment of the present invention, described organic fibre is wood powder.
Also have in a specific embodiment of the present invention, described nanometer reinforcement powder is nano-calcium carbonate.
More of the present invention and in a specific embodiment, described coupling agent is one or more combination of titanate coupling agent, aluminate coupling agent and silane coupling agent; Described titanate coupling agent is KR-12, and described aluminate coupling agent is LD-802; Described silane coupling agent is KH-602.
In of the present invention and then a specific embodiment, described releasing agent is one or more combination of Zinc Stearate, calcium stearate, magnesium stearate and aluminum foil stearate.
Of the present invention again more and in a specific embodiment, described oil pad is crystalline flake graphite.
Another task of the present invention completes like this, and the preparation method of phenolaldehyde moulding compound for a kind of gas meter rotor, comprises the following steps:
A) prepare substrate material, the resol 20-35 part taking is by weight introduced in pulverizer and pulverized, obtain substrate material;
B) prepare compound, the solidifying agent 4-10 part taking by weight, inorganic reinforcing fiber 10-20 part, organic fibre 10-25 part, nanometer are strengthened to powder 5-10 part, coupling agent 0.5-2 part, releasing agent 0.2-2 part and mineral filler 10-30 part in company with by steps A) substrate material that obtains drops in kneader and mediates, and obtains compound;
C) plasticate, by by step B) compound that obtains introduces plasticator and plasticates, and plasticating temperature control is 90-110 DEG C, and the time of plasticating is controlled as 5-10min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.
Technical scheme provided by the invention is owing to having used oil pad in formula, thereby there is good oilness and sealing property, simultaneously due to the adding of alkali-free chopped glass fiber and nanometer reinforcement powder, then with the composite coupling of coupling agent, thereby there is excellent mechanical property and resistance toheat.Can meet the requirement of expection, for the manufacture of gas meter rotor.Because production technique is identical with common phenolaldehyde moulding compound, the amplification that is therefore suitable for industrial high efficiency rate is produced simultaneously; Because the starting material that adopt in formula are simple and easy to get, thereby product cost is lower, compound expection requirement.
Embodiment
Embodiment 1:
A) prepare substrate material, by being crushed to powdery in 35 parts of introducing pulverizers of the thermoplastic novolac phenolic resin taking by weight, obtain substrate material;
B) prepare compound, 9 parts of 22 parts of 15 parts of alkali-free short glass fibers, wood powders, the nano-calcium carbonates, the titanate coupling agent KR-12[KR-12 that are 3mm by 5 parts of the hexamethylenetetramines taking by weight, length are sec.-propyl three (dioctyl phosphoric acid acyloxy) titanic acid ester] 1.5 parts, 1.5 parts of Zinic stearass and 10 parts of companions of crystalline flake graphite are by steps A) substrate material that obtains drops in kneader and mediates (kneading is mixing), obtains compound;
C) plasticate, by by step B) compound that obtains introduces twin-roll plastic mixing mill and plasticates, and plasticating temperature control is 90 DEG C, and the time of plasticating is controlled as 10min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.If prepare in compound step, add parts by weight be the tinting material of required color of 1.4-1.6 part as ink, can obtain so colored gas meter rotor phenolaldehyde moulding compound.
Embodiment 2:
A) prepare substrate material, by being crushed to powdery in 30 parts of introducing pulverizers of the thermoplastic novolac phenolic resin taking by weight, obtain substrate material;
B) prepare compound, by 8 parts of the hexamethylenetetramines taking by weight, length is 20 parts of the alkali-free short glass fibers of 3mm, 12 parts of wood powders, 8 parts of nano-calcium carbonates, silane coupling agent KH-602[KH-602 is N-β-(aminoethyl)-γ-aminopropyl methyl dimethoxysilane] 1 part, aluminate coupling agent LD-802[LD-802 is (methyl aceto acetate base) diisopropoxy Aluminate] 1 part, 1 part of calcium stearate, 1 part of Zinic stearas and 30 parts of companions of crystalline flake graphite are by steps A) substrate material that obtains drops into and in kneader, mediates (kneading is mixing), obtain compound,
C) plasticate, by by step B) compound that obtains introduces twin-roll plastic mixing mill and plasticates, and plasticating temperature control is 110 DEG C, and the time of plasticating is controlled as 5min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.If prepare in compound step, add parts by weight be the tinting material of required color of 1.4-1.6 part as ink, can obtain so colored gas meter rotor phenolaldehyde moulding compound.
Embodiment 3:
A) prepare substrate material, by being crushed to powdery in 25 parts of introducing pulverizers of the thermoplastic novolac phenolic resin taking by weight, obtain substrate material;
B) prepare compound, 0.5 part of 0.5 part of 0.73 part of 0.8 part of 10 parts of 10 parts of 10 parts of alkali-free short glass fibers, wood powders, nano-calcium carbonates, aluminate coupling agent LD-802, titanate coupling agent KR-12, Magnesium Stearate, calcium stearate being 3mm by 4 parts of the hexamethylenetetramines taking by weight, length and 28 parts of companions of crystalline flake graphite are by steps A) substrate material that obtains drops in kneader and mediates (kneading is mixing), obtains compound;
C) plasticate, by by step B) compound that obtains introduces twin-roll plastic mixing mill and plasticates, and plasticating temperature control is 105 DEG C, and the time of plasticating is controlled as 7min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.If prepare in compound step, add parts by weight be the tinting material of required color of 1.4-1.6 part as ink, can obtain so colored gas meter rotor phenolaldehyde moulding compound.
Embodiment 4:
A) prepare substrate material, by being crushed to powdery in 20 parts of introducing pulverizers of the thermoplastic novolac phenolic resin taking by weight, obtain substrate material;
B) prepare compound, 0.2 part of 0.5 part of 6 parts of 25 parts of 12 parts of alkali-free short glass fibers, wood powders, nano-calcium carbonates, silane coupling agent KH-602, Zinic stearas being 3mm by 10 parts of the hexamethylenetetramines taking by weight, length and 15 parts of companions of crystalline flake graphite are by steps A) substrate material that obtains drops in kneader and mediates (kneading is mixing), obtains compound;
C) plasticate, by by step B) compound that obtains introduces twin-roll plastic mixing mill and plasticates, and plasticating temperature control is 95 DEG C, and the time of plasticating is controlled as 10min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.If prepare in compound step, add parts by weight be the tinting material of required color of 1.4-1.6 part as ink, can obtain so colored gas meter rotor phenolaldehyde moulding compound.
Embodiment 5:
A) prepare substrate material, by being crushed to powdery in 32 parts of introducing pulverizers of the thermoplastic novolac phenolic resin taking by weight, obtain substrate material;
B) prepare compound, being that 0.2 part of 0.6 part of 0.4 part of 0.6 part of 0.6 part of 0.6 part of 10 parts of 19 parts of 18 parts of alkali-free short glass fibers, wood powders, nano-calcium carbonates, titanate coupling agent KR-12, aluminate coupling agent LD-802, silane coupling agent KH-602, Magnesium Stearate, Zinic stearas, the calcium stearate of 3 ㎜ and 22 parts of companions of crystalline flake graphite are by steps A by 6 parts of the hexamethylenetetramines taking by weight, length) substrate material that obtains drops in kneader and mediates (kneading is mixing), obtains compound;
C) plasticate, by by step B) compound that obtains introduces twin-roll plastic mixing mill and plasticates, and plasticating temperature control is 98 DEG C, and the time of plasticating is controlled as 9min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.If prepare in compound step, add parts by weight be the tinting material of required color of 1.4-1.6 part as ink, can obtain so colored gas meter rotor phenolaldehyde moulding compound.
The gas meter rotor phenolaldehyde moulding compound being obtained by above-described embodiment 1-5 has the technical indicator shown in following table after tested.
Claims (10)
1. a gas meter rotor phenolaldehyde moulding compound, is characterized in that it is to be made up of the raw material of following parts by weight proportioning:
Resol 20-35 part;
Solidifying agent 4-10 part;
Inorganic reinforcing fiber 10-20 part;
Organic fibre 10-25 part;
Nanometer reinforcement powder 5-10 part;
Coupling agent 0.5-2.0 part;
Releasing agent 0.2-2.0 part;
Oil pad 10-30 part.
2. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described resol is thermoplastic novolac phenolic resin.
3. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described solidifying agent is hexamethylenetetramine.
4. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described inorganic reinforcing fiber is the alkali-free short glass fiber of length at 3mm.
5. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described organic fibre is wood powder.
6. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described nanometer reinforcement powder is nano-calcium carbonate.
7. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described coupling agent is one or more combination of titanate coupling agent, aluminate coupling agent and silane coupling agent; Described titanate coupling agent is KR-12, and described aluminate coupling agent is LD-802; Described silane coupling agent is KH-602.
8. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described releasing agent is one or more combination of Zinc Stearate, calcium stearate, magnesium stearate and aluminum foil stearate.
9. gas meter rotor phenolaldehyde moulding compound according to claim 1, is characterized in that described oil pad is crystalline flake graphite.
10. a preparation method for phenolaldehyde moulding compound for gas meter rotor as claimed in claim 1, is characterized in that comprising the following steps:
A) prepare substrate material, the resol 20-35 part taking is by weight introduced in pulverizer and pulverized, obtain substrate material;
B) prepare compound, the solidifying agent 4-10 part taking by weight, inorganic reinforcing fiber 10-20 part, organic fibre 10-25 part, nanometer are strengthened to powder 5-10 part, coupling agent 0.5-2 part, releasing agent 0.2-2 part and mineral filler 10-30 part in company with by steps A) substrate material that obtains drops in kneader and mediates, and obtains compound;
C) plasticate, by by step B) compound that obtains introduces plasticator and plasticates, and plasticating temperature control is 90-110 DEG C, and the time of plasticating is controlled as 5-10min, is then cooled to room temperature, and what obtain sheet treats granulation material;
D) granulation, by by step C) the granulation material for the treatment of of the sheet that obtains introduces pulverizer and pulverizes and through screening, obtain gas meter rotor phenolaldehyde moulding compound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410253750.XA CN104045967A (en) | 2014-06-10 | 2014-06-10 | Phenolic molding plastic for gas meter rotor and preparation method of phenolic molding plastic |
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| CN201410253750.XA CN104045967A (en) | 2014-06-10 | 2014-06-10 | Phenolic molding plastic for gas meter rotor and preparation method of phenolic molding plastic |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893230A (en) * | 2015-05-06 | 2015-09-09 | 沈阳市航宇星仪表有限责任公司 | Material used for membrane-type gas meter valve cover and valve seat |
| CN105924893A (en) * | 2016-06-30 | 2016-09-07 | 禹州市远大塑料电器有限责任公司 | Phenol formaldehyde molding compound for electric baking pans and preparation technique thereof |
| CN106243615A (en) * | 2016-08-19 | 2016-12-21 | 山东北方现代化学工业有限公司 | A kind of gas meter high-strength fast solidification self-lubricating phenolic aldehyde anti-static composite material and preparation method thereof |
| CN106751441A (en) * | 2017-02-07 | 2017-05-31 | 和县隆盛精密机械有限公司 | A kind of terrace sander tool arm and preparation method thereof |
| CN109467874A (en) * | 2018-10-18 | 2019-03-15 | 上海欧亚合成材料有限公司 | A kind of graphene oxide modified phenolic molding compound and preparation method thereof |
| CN110527245A (en) * | 2019-09-12 | 2019-12-03 | 常熟东南塑料有限公司 | A kind of phenolaldehyde moulding compound of high durable |
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| CN101081922A (en) * | 2006-06-03 | 2007-12-05 | 刘洪来 | Phenolic plastic and preparation technique thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893230A (en) * | 2015-05-06 | 2015-09-09 | 沈阳市航宇星仪表有限责任公司 | Material used for membrane-type gas meter valve cover and valve seat |
| CN104893230B (en) * | 2015-05-06 | 2018-02-16 | 辽宁航宇星物联仪表科技有限公司 | A kind of diaphragm gas meter bonnet valve seat material |
| CN105924893A (en) * | 2016-06-30 | 2016-09-07 | 禹州市远大塑料电器有限责任公司 | Phenol formaldehyde molding compound for electric baking pans and preparation technique thereof |
| CN106243615A (en) * | 2016-08-19 | 2016-12-21 | 山东北方现代化学工业有限公司 | A kind of gas meter high-strength fast solidification self-lubricating phenolic aldehyde anti-static composite material and preparation method thereof |
| CN106243615B (en) * | 2016-08-19 | 2018-04-17 | 山东北方现代化学工业有限公司 | A kind of gas meter high-strength fast curing self-lubricating phenolic aldehyde anti-static composite material and preparation method thereof |
| CN106751441A (en) * | 2017-02-07 | 2017-05-31 | 和县隆盛精密机械有限公司 | A kind of terrace sander tool arm and preparation method thereof |
| CN109467874A (en) * | 2018-10-18 | 2019-03-15 | 上海欧亚合成材料有限公司 | A kind of graphene oxide modified phenolic molding compound and preparation method thereof |
| CN109467874B (en) * | 2018-10-18 | 2021-08-10 | 上海欧亚合成材料股份有限公司 | Graphene oxide modified phenolic molding compound and preparation method thereof |
| CN110527245A (en) * | 2019-09-12 | 2019-12-03 | 常熟东南塑料有限公司 | A kind of phenolaldehyde moulding compound of high durable |
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Application publication date: 20140917 |