CN103613910A - Material for preparing long-life salt-fog test equipment box body and preparation method thereof - Google Patents
Material for preparing long-life salt-fog test equipment box body and preparation method thereof Download PDFInfo
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- CN103613910A CN103613910A CN201310624242.3A CN201310624242A CN103613910A CN 103613910 A CN103613910 A CN 103613910A CN 201310624242 A CN201310624242 A CN 201310624242A CN 103613910 A CN103613910 A CN 103613910A
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Abstract
The invention provides a material for preparing a long-life salt-fog test equipment box body. The material is characterized by comprising the following materials in parts by weight: 100 parts of phenolic aldehyde epoxy vinyl ester resin, 150-230 parts of mineral fillers, 0.8-1.5 parts of initiating agents, 0.5-1.5 parts of mould release agents, 0.8-1.4 parts of thickening agents, 1.8-2.5 parts of process auxiliary agents, 8-12 parts of salt-fog resistant nanometer additives and alkali-free chopped glass fibers which account for 15%-20% of the total amount of the mixture. The box body material provided by the invention has superior salt-fog resistant capacity and corrosion resistant capacity, thereby being capable of substituting for imported PVC (Polyvinyl Chloride) and PP (Polypropylene) plates; the box body material provided by the invention ensures that the equipment box body is sealed without being leaked by being formed through compression for one time.
Description
Technical field
The present invention relates to plastic box and manufacture field, particularly a kind of material for the preparation of long lifetime salt-fog test equipment box and prepare the method for this casing.
Background technology
The casing of at present general salt-fog test equipment: mostly select the plastic plates such as import rigid polyvinyl chloride (PVC), polypropylene (PP), carbonate synthesis (PC) through hot press moulding moulding, again through operations such as plane, milling, mills, final high temperature is welded, and general tolerable temperature is all 70 ℃ of left and right.The boxboard that this class is made by thermoplastics, under the repeated stock of long-term temperature variation, can cause early stage thermal stress fatigue and lost efficacy.And common thermosetting resin on average all can be worked under the long term high temperature of 120 ℃, if through special modification selection, both improved the corrosion resistant ability in salt mist environment, can under the impact of temperature variation repeatedly, keep higher intensity again.This is the problem that salt-spray cabinet body manufacturing firm is endeavouring to seek solution always.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of for the preparation of long-life not only high temperature resistant but also etch-proof tank material of the high-intensity salt spray resistance of tool.For making the casing of salt-fog test equipment, and the alternative sheet materials such as hard PVC from external import costliness.
For achieving the above object, technical scheme of the present invention is as follows: novel casing material is by the high-performance pnenolic aldehyde epoxy vinyl ester resin that contains low contraction (profile) additive, mineral filler, initiator, releasing agent, thickening material, salt spray resistance nanometer additive and alkali-free short glass fiber, the Bulk Molding Compound of mixing according to a certain percentage and forming, pass through again in High Temperature High Pressure the once required box shape of moulding, without follow-up supplementary processing.
Preferably, described phenol formaldehyde epoxy vinyl ester resin is the high-performance pnenolic aldehyde epoxy vinyl ester resin that MFE757 contains low contraction (profile) additive.
Preferably, described mineral filler is to be respectively by particle diameter the water-ground limestone that 350 orders, 800 orders, 1200 object calcium carbonate powderss are mixed and obtain by 1:0.6:0.3.
Preferably, described initiator is peroxidized t-butyl perbenzoate (TBPB).
Preferably, described releasing agent is Zinic stearas.
Preferably, described thickening material is calcium hydroxide or magnesium oxide.
Preferably, described process auxiliaries is that BYK-P9050 has the additive that demoulding functions reduces mist shadow.
Preferably, described salt spray resistance nanometer additive is to adopt the refining ZT-719 additive forming of special technique by multiple nano material, its pH value (10% aqueous solution) 7.5～8.5, median size 4～6 μ, tap density 2.2～2.4 g/cm3, water capacity thing≤0.3%, oil number (g/100g)≤20%, bright vector≤0.5%.
Preferably, described alkali-free short glass fiber length is 6mm, diameter 13 μ.
The present invention also provides a kind of method of preparing long lifetime salt-fog test equipment box, comprises the following steps:
A) powder body material in aforementioned batching is mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
B) liquid components in aforementioned batching is dropped in the tempering tank of high speed hollander, strong stirring injects Sigama kneader after 10～16 minutes;
C) powder body material and fluent material mix after 25～30 minutes continuously in Sigama kneader, then drop into glass fibre, stir discharging after 4～6 minutes, obtain treating the moulding compound of slaking;
D) above-mentioned moulding compound is dropped in the mould that has been heated to 140～160 ℃ as required after slaking to press forming after weighing.
The invention has the beneficial effects as follows:
1, tank material of the present invention possesses the etch-proof ability of superior salt spray resistance, the sheet material test piece of making of the present invention and conventional import PVC, the test piece of PP sheet material, be placed in same salt-fog test environment, tested 20 months continuously, accumulative total reaches 1600h, test piece of the present invention still keeps 10 grades of surface grade, and surface crack has appearred in the PVC of synchronism detection, PP plate;
2, the alternative import PVC of tank material of the present invention, PP sheet material;
3. casing of the present invention adopts moulding compound disposal pressed moulding, guaranteed equipment box sealing, ne-leakage hidden danger, unlike PVC, PP plate to cut, swaging, machining, finally also must high-temperature soldering etc. multiple tracks post-treatment operation, not only take a lot of work, the cycle is long, and easily leaves processing hidden danger.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described
embodiment mono-
Take the batching of following weight part:
100 parts of phenol formaldehyde epoxy vinyl ester resins
150～230 parts of mineral fillers
0.8～1.5 part of initiator
0.5～1.5 part of releasing agent
0.8～1.4 part of thickening material
1.8～2.5 parts of process auxiliaries
8～12 parts of salt spray resistance nanometer additives
15～20% of alkali-free short glass fiber compound total amount.Wherein mineral filler can be calcium carbonate or talcum powder or kaolin, and thickening material can be calcium hydroxide or magnesium oxide, and initiator, releasing agent, salt spray resistance nanometer additive adopt the commercially available respective material in market.
Long lifetime, salt-fog test equipment box preparation method was as follows: the powder body material in above-mentioned batching is first mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
Then the liquid components in batching is dropped in the tempering tank of high speed hollander, strong stirring also injects Sigama kneader after 10～16 minutes;
Powder and liquid material are mixed after 25～30 minutes continuously in Sigama kneader, more successively drop into glass fibre, then stir 4～6 minutes, i.e. turning discharging packs in sealing bag standby;
Above-mentioned moulding compound is dropped in the mould that has been heated to 140～150 ℃ after weighing as required after slaking, and the processing parameter matched moulds by relevant, is pressed into required box parts.
Owing to having adopted phenol formaldehyde epoxy vinyl ester resin, casing salt spray resistance obviously improves.The sheet material test piece that the present invention makes and conventional import PVC, the test piece of PP sheet material, be placed in same salt-fog test environment, tested 20 months continuously, accumulative total reached 1600h, test piece of the present invention still keeps 10 grades of surface grade, and surface crack has appearred in the PVC of synchronism detection, PP plate.
embodiment bis-
In the present embodiment, mineral filler is to be respectively by particle diameter the water-ground limestone that 350 orders, 800 orders, 1200 object calcium carbonate powderss are mixed and obtain by 1:0.6:0.3, mineral filler adopts the grating of variable grain diameter, to improving degree of compactness and the apparent mass of goods, has very large benefit.Initiator is peroxidized t-butyl perbenzoate (TBPB).Releasing agent is Zinic stearas.
The thickening material of the present embodiment is calcium hydroxide, add thickening material, it is the state of wishing substantially to keep through the fully mixed viscoelastic physical efficiency of homogeneous phase of kneader its homogeneous, homogeneous phase, be not separated, more not wishing liquid resin separates out, and wish can also flow together with glass at the mobile batch mixing that gives therebetween of moulding, be full of each position of die cavity.When temperature is lower, can select magnesium oxide MgO, to reach the object of quick multiviscosisty.
Choose 37.9kg (100 parts) MFE757 phenol formaldehyde epoxy vinyl ester resin, the calcium carbonate that 75.8kg (200 parts) is mixed, 379g (1.0 parts) TBPB, 568.5g (1.0 parts) calcium hydroxide, 758g (2.0 parts) BYK-P9050,3.79kg (10 parts) ZT-719 and 27kg chopped glass fiber, stand-by.
Powder body material in above-mentioned batching is first mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
Then the liquid components in batching is dropped in the tempering tank of high speed hollander, strong stirring also injects Sigama kneader after 10～16 minutes;
Powder and liquid material are mixed after 25～30 minutes continuously in Sigama kneader, more successively drop into glass fibre, then stir 4～6 minutes, i.e. turning discharging packs in sealing bag standby;
Above-mentioned moulding compound is dropped in the mould that has been heated to 140～150 ℃ after weighing as required after slaking, and the processing parameter matched moulds by relevant, is pressed into required box parts.
embodiment tri-
In the present embodiment, process auxiliaries is that BYK-P9050 has the additive that demoulding functions reduces mist shadow.
The salt spray resistance nanometer additive of the present embodiment is to adopt the refining ZT-719 additive forming of special technique by multiple nano material, its pH value (10% aqueous solution) 7.5～8.5, median size 4～6 μ, tap density 2.2～2.4 g/cm3, water capacity thing≤0.3%, oil number (g/100g)≤20%, bright vector≤0.5%.Alkali-free short glass fiber length is 6mm, diameter 13 μ.
Choose 10kg (100 parts) MFE757 phenol formaldehyde epoxy vinyl ester resin, the calcium carbonate that 15kg (150 parts) is mixed, 150g (1.5 parts) TBPB, 80g (0.8 part) calcium hydroxide, 180g (1.8 parts) BYK-P9050,80g (8 parts) ZT-719 and 4.5kg chopped glass fiber, stand-by.
Powder body material in above-mentioned batching is first mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
Then the liquid components in batching is dropped in the tempering tank of high speed hollander, strong stirring also injects Sigama kneader after 10～16 minutes;
Powder and liquid material are mixed after 25～30 minutes continuously in Sigama kneader, more successively drop into glass fibre, then stir 4～6 minutes, i.e. turning discharging packs in sealing bag standby;
Above-mentioned moulding compound is dropped into after slaking in the holding bin of BMC injection moulding machine, by injection moulding machine, by the processing parameter of setting, automatically inject the mould of 150～160 ℃, make required salt-fog chamber's rack part.
embodiment tetra-
Choose the MFE757 phenol formaldehyde epoxy vinyl ester resin of 100 parts of weight parts, the calcium carbonate being mixed of 230 parts, the TBPB of 0.8 part, 1.4 parts of calcium hydroxides, the BYK-P9050 of 2.5 parts, the chopped glass fiber of the ZT-719 of 12 parts and gross weight 25%, stand-by.
Powder body material in above-mentioned batching is first mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
Then the liquid components in batching is dropped in the tempering tank of high speed hollander, strong stirring also injects Sigama kneader after 10～16 minutes;
Powder and liquid material are mixed after 25～30 minutes continuously in Sigama kneader, more successively drop into glass fibre, then stir 4～6 minutes, i.e. turning discharging, pack in sealing bag standby;
Above-mentioned moulding compound is dropped into after slaking in the holding bin of BMC injection moulding machine, by injection moulding machine, by the processing parameter of setting, automatically inject the mould of 150～160 ℃, make required salt-fog test equipment box.
Although the present invention is described by reference to preferred embodiment,, those of ordinary skills should understand, and can be not limited to the description of the present embodiment, in the scope of claims, can make the various variations in form and details.
Claims (10)
1. for the preparation of a material for long lifetime salt-fog test equipment box, it is characterized in that comprising the batching of following composition by weight:
100 parts of phenol formaldehyde epoxy vinyl ester resins
150～230 parts of mineral fillers
0.8～1.5 part of initiator
0.5～1.5 part of releasing agent
0.8～1.4 part of thickening material
1.8～2.5 parts of process auxiliaries
8～12 parts of salt spray resistance nanometer additives
15～20% of alkali-free short glass fiber compound total amount.
2. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described phenol formaldehyde epoxy vinyl ester resin is MFE757.
3. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described mineral filler is to be respectively by particle diameter the water-ground limestone that 350 orders, 800 orders, 1200 object calcium carbonate powderss are mixed and obtain by 1:0.6:0.3.
4. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described initiator is peroxidized t-butyl perbenzoate (TBPB).
5. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described releasing agent is Zinic stearas.
6. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described thickening material is calcium hydroxide or magnesium oxide.
7. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described process auxiliaries is BYK-P9050.
8. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, it is characterized in that described salt spray resistance nanometer additive is ZT-719 additive, its pH value (10% aqueous solution) 7.5～8.5, median size 4～6 μ, tap density 2.2～2.4 g/cm3, water capacity thing≤0.3%, oil number (g/100g)≤20%, bright vector≤0.5%.
9. a kind of material for the preparation of long lifetime salt-fog test equipment box according to claim 1, is characterized in that described alkali-free short glass fiber length is 6mm, and diameter is 13 μ.
10. a method of preparing long lifetime salt-fog test equipment box, is characterized in that comprising the following steps:
A) powder body material in claim 1 batching is mixed 6～8 minutes in V font dry powder blend device, then proceed in Sigama kneader;
B) liquid components in claim 1 batching is dropped in the tempering tank of high speed hollander, strong stirring injects Sigama kneader after 10～16 minutes;
C) powder body material and fluent material mix after 25～30 minutes continuously in Sigama kneader, then drop into glass fibre, stir discharging after 4～6 minutes, obtain treating the moulding compound of slaking;
D) above-mentioned moulding compound is dropped in the mould that has been heated to 140～160 ℃ as required after slaking to press forming after weighing.
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| CN201310624242.3A CN103613910B (en) | 2013-11-29 | 2013-11-29 | A kind of material for the preparation of long lifetime salt-fog test equipment box and preparation method |
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| CN103613910B CN103613910B (en) | 2015-08-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017384A (en) * | 2014-06-20 | 2014-09-03 | 江苏兆鋆新材料股份有限公司 | High-compression strength bulk molding compound and production method thereof |
| CN104987674A (en) * | 2015-06-05 | 2015-10-21 | 苏州珍展科技材料有限公司 | Seawater resistant vinyl ester composite material and preparation method thereof |
| CN106848566A (en) * | 2017-03-20 | 2017-06-13 | 杭州利安玻璃钢有限公司 | Fiberglass radome |
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| CN102514206A (en) * | 2011-12-07 | 2012-06-27 | 长春工业大学 | Production method of phenol formaldehyde epoxy vinyl ester resin/carbon fiber composite material |
| CN103183931A (en) * | 2011-12-27 | 2013-07-03 | 常熟市亚美模特儿衣架有限公司 | Phenolic epoxy glass fibre reinforced plastic forming material |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514206A (en) * | 2011-12-07 | 2012-06-27 | 长春工业大学 | Production method of phenol formaldehyde epoxy vinyl ester resin/carbon fiber composite material |
| CN103183931A (en) * | 2011-12-27 | 2013-07-03 | 常熟市亚美模特儿衣架有限公司 | Phenolic epoxy glass fibre reinforced plastic forming material |
Non-Patent Citations (1)
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| 生健: "酚醛环氧乙烯基酯树脂碳纤维复合材料的", 《应用化工》, vol. 41, no. 4, 30 April 2012 (2012-04-30), pages 736 - 738 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017384A (en) * | 2014-06-20 | 2014-09-03 | 江苏兆鋆新材料股份有限公司 | High-compression strength bulk molding compound and production method thereof |
| CN104987674A (en) * | 2015-06-05 | 2015-10-21 | 苏州珍展科技材料有限公司 | Seawater resistant vinyl ester composite material and preparation method thereof |
| CN106848566A (en) * | 2017-03-20 | 2017-06-13 | 杭州利安玻璃钢有限公司 | Fiberglass radome |
| CN106848566B (en) * | 2017-03-20 | 2023-07-25 | 杭州利安新材料技术有限公司 | Glass fiber reinforced plastic antenna housing |
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