CN106280379A - A kind of high transmission rate Merlon and preparation method thereof - Google Patents
A kind of high transmission rate Merlon and preparation method thereof Download PDFInfo
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- CN106280379A CN106280379A CN201610870571.XA CN201610870571A CN106280379A CN 106280379 A CN106280379 A CN 106280379A CN 201610870571 A CN201610870571 A CN 201610870571A CN 106280379 A CN106280379 A CN 106280379A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/026—Phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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Abstract
The invention provides a kind of high transmission rate Merlon and preparation method thereof, by adding compound aluminium hydroxide agent in formula, red phosphorus, graphite oxide, sodium bicarbonate, light diffusing agent, light stabilizer etc., and by 3 steps, all raw materials are respectively prepared pulverized polycarbonates, a number compound, No. two compounds, then add sodium bicarbonate after a compound and No. two compounds being mixed and pulverized polycarbonates carries out syllogic stirring, and the mixing time and mixing speed to syllogic stirring is strictly control, can be so that the high transmission rate polycarbonate products that the present invention prepares has higher light transmission, test proves that, its light transmittance can reach 99%.
Description
Technical field
The present invention relates to macromolecule engineering plastic applications, particularly relate to a kind of high transmission rate Merlon and preparation side thereof
Method.
Background technology
Merlon (being called for short PC) is the high molecular polymer in strand containing carbonate group, and the structure according to ester group can
It is divided into the polytypes such as aliphatic, aromatic series, aliphatic-aromatic.Due to the particularity on polycarbonate structure, become
The general engineering plastic that in five large-engineering plastics, growth rate is the fastest.
Merlon has good fire resistance and high transmission rate, and good weatherability, hardness are high, shock resistance, heat resistanceheat resistant
Distortion performance is strong.Merlon is widely used in the fields such as building material industry, auto manufacturing, packaging industry, optical lens industry,
According to the difference in the field of use, the various performance requirements of Merlon are the most inconsistent.
In optical lens industry, Merlon is many to be used as lampshade, and the light transmittance of existing market Transparent lamp shade can reach
To 88-92%, the light transmittance of vaporific lampshade is at 70-86%.If the luminous flux of a fluorescent tube not adding lampshade is 2000lm, now
The Transparent lamp shade of 88% is only had plus light transmittance, then the luminous flux of the luminous flux of its reality the most only 1760lm to it.If giving
It is plus the Transparent lamp shade that light transmittance is 95%, then its actual luminous flux just has 1900lm, it can be seen that, light transmittance is the highest,
Actual luminous flux is the highest；And the light transmittance of existing lampshade only up to reach 92%, it need to promote.
Summary of the invention
In order to overcome the problems referred to above, the invention provides a kind of high transmission rate Merlon and preparation method thereof.
For achieving the above object, present invention provide the technical scheme that
A kind of high transmission rate Merlon, composition of raw materials is:
Merlon 90 weight portion
Compound aluminium hydroxide agent 0.8 weight portion
Red phosphorus 3.2 weight portion
Graphite oxide 1 weight portion
Lubricant 0.7 weight portion
Compound antioxidant 0.1 weight portion
Sodium bicarbonate 3 weight portion
Light diffusing agent 0.5 weight portion
Light stabilizer 0.6 weight portion.
Wherein, described Merlon is bisphenol A polycarbonate, and molecular weight is 26000-40000；
Wherein, the mass percent sum of above each component is 97%-100%.
The preparation method of a kind of high transmission rate Merlon, comprises the following steps:
1) Merlon is added after engineering plastics pulverizer is pulverized standby；
2) being stirred by compound aluminium hydroxide agent, red phosphorus and lubricant addition macromolecular material blender, mixing speed is
210r/min, mixing time is 120min, obtains a compound；
3) compound antioxidant, graphite oxide, light diffusing agent and light stabilizer addition macromolecular material blender is stirred, stirs
Mixing speed is 210r/min, and mixing time is 60min, obtains No. two compounds；
4) by step 2) and a compound obtaining of step 3), No. two compounds add macromolecular material blenders and stir
Mixing, mixing speed is 300r/min, and mixing time is 20min；
5) after step 4) has stirred, adding sodium bicarbonate and pulverized polycarbonates carries out syllogic stirring, first paragraph stirs
Mixing speed be 170r/min, mixing time is 20min, second segment stirring mixing speed be 210r/min, mixing time
For 10min, the mixing speed of the 3rd section of stirring is 70r/min, and mixing time is 45min；
6) material of mix homogeneously step 5) obtained is put into engineering plastics extruder and is carried out extruding pelletization, obtains high transmission rate
Merlon；Wherein, the extrusion temperature of independent segment is 312 DEG C, and the extrusion temperature of filling section is 340 DEG C, the extrusion temperature of engaged section
Degree is 300 DEG C, and it is 0.6MPa-0.8MPa that extruding pelletization adds the vacuum in man-hour.
Having the beneficial effect that of technique scheme
The invention provides a kind of high transmission rate Merlon and preparation method thereof, by adding compound aluminium hydroxide in formula
Agent, red phosphorus, graphite oxide, sodium bicarbonate, light diffusing agent, light stabilizer etc., and by 3 steps, all raw materials are respectively prepared
Pulverized polycarbonates, compound, No. two compounds, then add carbon after a compound and No. two compound mixing
Acid hydrogen sodium and pulverized polycarbonates carry out syllogic stirring, and to the mixing time of syllogic stirring and mixing speed strictly handle
Control, can test proves that so that the high transmission rate polycarbonate products that the present invention prepares has higher light transmission, its
Light transmittance can reach 99%.
Below in conjunction with detailed description of the invention, technical scheme is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area
The every other embodiment that those of ordinary skill is obtained under not making creative work premise, broadly falls into present invention protection
Scope.
Detailed description of the invention
Embodiment 1
A kind of high transmission rate Merlon, composition of raw materials is:
Merlon 90 weight portion
Compound aluminium hydroxide agent 0.8 weight portion
Red phosphorus 3.2 weight portion
Graphite oxide 1 weight portion
Lubricant 0.7 weight portion
Compound antioxidant 0.1 weight portion
Sodium bicarbonate 3 weight portion
Light diffusing agent 0.5 weight portion
Light stabilizer 0.6 weight portion.
Wherein, described Merlon is bisphenol A polycarbonate, and molecular weight is 26000-40000；
Wherein, the mass percent sum of above each component is 97%-100%.
The preparation method of a kind of high transmission rate Merlon, comprises the following steps:
1) Merlon is added after engineering plastics pulverizer is pulverized standby；
2) being stirred by compound aluminium hydroxide agent, red phosphorus and lubricant addition macromolecular material blender, mixing speed is
210r/min, mixing time is 120min, obtains a compound；
3) compound antioxidant, graphite oxide, light diffusing agent and light stabilizer addition macromolecular material blender is stirred, stirs
Mixing speed is 210r/min, and mixing time is 60min, obtains No. two compounds；
4) by step 2) and a compound obtaining of step 3), No. two compounds add macromolecular material blenders and stir
Mixing, mixing speed is 300r/min, and mixing time is 20min；
5) after step 4) has stirred, adding sodium bicarbonate and pulverized polycarbonates carries out syllogic stirring, first paragraph stirs
Mixing speed be 170r/min, mixing time is 20min, second segment stirring mixing speed be 210r/min, mixing time
For 10min, the mixing speed of the 3rd section of stirring is 70r/min, and mixing time is 45min；
6) material of mix homogeneously step 5) obtained is put into engineering plastics extruder and is carried out extruding pelletization, obtains high transmission rate
Merlon；Wherein, the extrusion temperature of independent segment is 312 DEG C, and the extrusion temperature of filling section is 340 DEG C, the extrusion temperature of engaged section
Degree is 300 DEG C, and it is 0.6MPa-0.8MPa that extruding pelletization adds the vacuum in man-hour.
Above as the preferred forms of the present invention, draw through the applicant's many experiments, at the poly-carbonic acid of high printing opacity
In the formula of ester, with Merlon 82-92 weight portion, compound aluminium hydroxide agent 0.1-2 weight portion, red phosphorus 2-4 weight portion,
Graphite oxide 0.5-1 weight portion, lubricant 0.3-0.8 weight portion, compound antioxidant 0.1-0.3 weight portion, sodium bicarbonate
1-3 weight portion, light diffusing agent 0.5-1 weight portion, light stabilizer 0.5-1 weight portion formula through the system described in the present invention
Prepared by Preparation Method, the various aspects of performance of the high transmission rate Merlon drawn is above the performance of common lampshade, wherein, with poly-carbon
Acid esters 90 weight portion, compound aluminium hydroxide agent 0.8 weight portion, red phosphorus 3.2 weight portion, graphite oxide 1 weight portion, lubricant
0.7 weight portion, compound antioxidant 0.1 weight portion, sodium bicarbonate 3 weight portion, light diffusing agent 0.5 weight portion, light stabilizer
The performance of the high transmission rate polycarbonate compositions that the formula of 0.6 weight portion prepares is optimal.
Embodiment 2
The preparation method of a kind of high transmission rate as described in Example 1, wherein some processes can also use following technique:
In described step 5), the mixing speed of first paragraph stirring is 150r/min, and mixing time is 20min, and second segment stirs
Mixing speed be 210r/min, mixing time is 10min, the 3rd section stirring mixing speed be 60r/min, mixing time is
45min。
In described step 6), the extrusion temperature of independent segment is 320 DEG C, and the extrusion temperature of filling section is 320 DEG C, engaged section
Extrusion temperature be 300 DEG C.
Embodiment 3
The preparation method of a kind of high transmission rate as described in Example 1, wherein some processes can also use following technique:
In described step 5), the mixing speed of first paragraph stirring is 180r/min, and mixing time is 20min, and second segment stirs
Mixing speed be 200r/min, mixing time is 10min, the 3rd section stirring mixing speed be 80r/min, mixing time is
45min。
In described step 6), the extrusion temperature of independent segment is 310 DEG C, and the extrusion temperature of filling section is 350 DEG C, engaged section
Extrusion temperature be 290 DEG C.
Embodiment 4
The preparation method of a kind of high transmission rate as described in Example 1, wherein some processes can also use following technique:
In described step 5), the mixing speed of first paragraph stirring is 170r/min, and mixing time is 20min, and second segment stirs
Mixing speed be 200r/min, mixing time is 10min, the 3rd section stirring mixing speed be 60r/min, mixing time is
45min。
In described step 6), the extrusion temperature of independent segment is 317 DEG C, and the extrusion temperature of filling section is 330 DEG C, engaged section
Extrusion temperature be 290 DEG C.
By various embodiments above, high transmission rate Merlon the most all can be prepared；It should be noted that the skill of the present invention
Art is characterized by and is by adding compound aluminium hydroxide agent, red phosphorus, graphite oxide, sodium bicarbonate, light diffusing agent, light in formula
Stabilizer etc., and by 3 steps, all raw materials are respectively prepared pulverized polycarbonates, compound, No. two compounds, so
After will add sodium bicarbonate after a compound and the mixing of No. two compounds and pulverized polycarbonates carries out syllogic stirring；Profit
Mix with sodium bicarbonate and pulverized polycarbonates and compound, No. two compounds, and the mixing time to syllogic stirring
With mixing speed strictly control, sodium bicarbonate and pulverized polycarbonates can be made can to play with light diffusing agent and light stabilizer
The effect of " Synergistic ", the high transmission rate polycarbonate products making the present invention prepare has higher light transmission, Jing Guoshi
Verifying bright, its light transmittance can reach 99%.
Those skilled in the art when implementing it should be noted that, in preparation method in the present invention, step 1) is used
The macromolecular material blender that engineering plastics pulverizer and other procedure of processings are used can directly use existing disintegrating apparatus,
Mixing plant；Preferably employ engineering plastics pulverizer and macromolecular material blender that this department provides, put into practice through the applicant
Prove, material can be made to have relatively through engineering plastics pulverizer and the material processed of macromolecular material blender of this department offer
High degree of grinding and mixing evenness, can be that prepared high-quality high transmission rate Merlon provides a preferable guarantee.
Performance test:
Test one: the light transmission for finished product high transmission rate Merlon makes mensuration.
Test sample: the product prepared through technical scheme described in above-mentioned 4 embodiments of the present invention and on the market common
Optical lens polycarbonate products (i.e. lampshade), the product that different technologies obtains sample 4 kinds respectively, and ordinary optical lens are with poly-
Carbonic ester product also samples 4 kinds.
Note: sampling standard uses gb/t2828.1-2012.
Result of the test is as shown in table 1:
Table 1
Note: in table 1, series 1-4 is respectively the product obtained by four embodiments of the present invention, and series 5 is common lampshade, repeats 1-
4 is the repeated sampling of each product.
By table 1 it can be seen that saturating through the high transmission rate Merlon obtained by the technical scheme described in the present invention
Light rate is up to 99%, minimum reaches 95%, and the light transmittance of common polycarbonate product is the highest only reaches 84%.
Conclusion (of pressure testing):
By table 2 it can be seen that through the light transmittance of the high transmission rate Merlon obtained by the technical scheme described in the present invention
Light transmittance far above common lampshade on the market；Wherein, with the preparation method described in embodiment 1, i.e. in described step 5)
In, the mixing speed of first paragraph stirring is 170r/min, and mixing time is 20min, and the mixing speed of second segment stirring is 210r/
Min, mixing time is 10min, and the mixing speed of the 3rd section of stirring is 70r/min, and mixing time is 45min；In described step
6) in, the extrusion temperature of independent segment is 312 DEG C, and the extrusion temperature of filling section is 340 DEG C, and the extrusion temperature of engaged section is 300 DEG C
The light transmittance of obtained high transmission rate Merlon is the highest, and up to 99%, compare the light transmission of common lampshade, promote bright
Aobvious.
Test two: the fire resistance for finished product high transmission rate Merlon makes mensuration.
Test sample: the product prepared through technical scheme described in above-mentioned 4 embodiments of the present invention and on the market common
Optical lens polycarbonate products (i.e. lampshade), the product that different technologies obtains sample 4 kinds respectively, and ordinary optical lens are with poly-
Carbonic ester product also samples 4 kinds.
Note: sampling standard uses gb/t2828.1-2012.
Whether test method: after each sample carries out twice combustion testings of 10 seconds, record flame out time, and have
Comburant drops.
Result of the test is as shown in table 2:
Table 2 (unit: second)
In above test, 4 repetitions of series 1-5 are all dropped without comburant.
Note: in table 2, series 1-4 is respectively the product obtained by four embodiments of the present invention, and series 5 is common poly-carbonic acid
Ester product, repeats the repeated sampling that 1-4 is each product.
By table 2 it can be seen that through the high transmission rate Merlon obtained by the present invention in test time, the minimum time is
4 seconds, it is up to 9 seconds, and the minimum time of common polycarbonate product is 18 seconds, be up to 25 seconds, may certify that through this
The flame retardant rating of the technical scheme described in bright four embodiments all reaches V-0 level, and the fire resistance of common lampshade is V-1 level.
Conclusion (of pressure testing):
By table 2 it can be seen that through the anti-flammability of the high transmission rate Merlon obtained by the technical scheme described in the present invention
Can be far above the fire resistance of common lampshade on the market；Wherein, with the preparation method described in embodiment 1, i.e. in described step
Rapid 5) in, the mixing speed of first paragraph stirring is 170r/min, and mixing time is 20min, and the mixing speed of second segment stirring is
210r/min, mixing time is 10min, and the mixing speed of the 3rd section of stirring is 70r/min, and mixing time is 45min；Described
In step 6), the extrusion temperature of independent segment is 312 DEG C, and the extrusion temperature of filling section is 340 DEG C, and the extrusion temperature of engaged section is
Obtained by 300 DEG C, the fire resistance of high transmission rate Merlon is the highest, compares the fire resistance of common lampshade, promotes substantially.
Claims (5)
1. a high transmission rate Merlon, it is characterised in that: composition of raw materials is:
Merlon 82-92 weight portion
Compound aluminium hydroxide agent 0.1-2 weight portion
Red phosphorus 2-4 weight portion
Graphite oxide 0.5-1 weight portion
Lubricant 0.3-0.8 weight portion
Compound antioxidant 0.1-0.3 weight portion
Sodium bicarbonate 1-3 weight portion
Light diffusing agent 0.5-1 weight portion
Light stabilizer 0.5-1 weight portion
Wherein, described Merlon is bisphenol A polycarbonate, and molecular weight is 26000-40000；
Wherein, the mass percent sum of above each component is 97%-100%.
2. a kind of high transmission rate Merlon as claimed in claim 1, it is characterised in that: composition of raw materials is:
Merlon 90 weight portion
Compound aluminium hydroxide agent 0.8 weight portion
Red phosphorus 3.2 weight portion
Graphite oxide 1 weight portion
Lubricant 0.7 weight portion
Compound antioxidant 0.1 weight portion
Sodium bicarbonate 3 weight portion
Light diffusing agent 0.5 weight portion
Light stabilizer 0.6 weight portion.
The preparation method of a kind of high transmission rate Merlon the most as claimed in claim 1, it is characterised in that: include following step
Rapid:
1) Merlon is added after engineering plastics pulverizer is pulverized standby；
2) being stirred by compound aluminium hydroxide agent, red phosphorus and lubricant addition macromolecular material blender, mixing speed is
210r/min, mixing time is 120min, obtains a compound；
3) compound antioxidant, graphite oxide, light diffusing agent and light stabilizer addition macromolecular material blender is stirred, stirs
Mixing speed is 210r/min, and mixing time is 60min, obtains No. two compounds；
4) by step 2) and a compound obtaining of step 3), No. two compounds add macromolecular material blenders and stir
Mixing, mixing speed is 300r/min, and mixing time is 20min；
5) after step 4) has stirred, adding sodium bicarbonate and pulverized polycarbonates carries out syllogic stirring, first paragraph stirs
Mixing speed be 150-180r/min, mixing time is 20min, second segment stirring mixing speed be 200-210r/min,
Mixing time is 10min, and the mixing speed of the 3rd section of stirring is 60-80r/min, and mixing time is 30-50min；
6) material of mix homogeneously step 5) obtained is put into engineering plastics extruder and is carried out extruding pelletization, obtains high transmission rate
Merlon；Wherein, the extrusion temperature of independent segment is 310-320 DEG C, and the extrusion temperature of filling section is 320-350 DEG C, engaged section
Extrusion temperature be 290-300 DEG C, it is 0.6MPa-0.8MPa that extruding pelletization adds the vacuum in man-hour.
The preparation method of a kind of high transmission rate Merlon the most as claimed in claim 3, it is characterised in that: in step 5),
The mixing speed of described first paragraph stirring is 170r/min, and mixing time is 20min, and the mixing speed of second segment stirring is
210r/min, mixing time is 10min, and the mixing speed of the 3rd section of stirring is 70r/min, and mixing time is 45min.
The preparation method of a kind of high transmission rate Merlon the most as claimed in claim 3, it is characterised in that: in step 6),
The extrusion temperature of described independent segment is 312 DEG C, and the extrusion temperature of filling section is 340 DEG C, and the extrusion temperature of engaged section is 300 DEG C.
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|---|---|---|---|---|
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