CN109666240A - A kind of high rigidity light diffusion K resin material and preparation method thereof - Google Patents
A kind of high rigidity light diffusion K resin material and preparation method thereof Download PDFInfo
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- CN109666240A CN109666240A CN201811605426.4A CN201811605426A CN109666240A CN 109666240 A CN109666240 A CN 109666240A CN 201811605426 A CN201811605426 A CN 201811605426A CN 109666240 A CN109666240 A CN 109666240A
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- high rigidity
- resin material
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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
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/10—Copolymers of styrene with conjugated dienes
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
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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
Abstract
The present invention relates to field of material technology, in particular to a kind of high rigidity light diffusion K resin material and preparation method thereof, wherein high rigidity light diffusion K resin material is made of the raw material of following parts by weight: 45-60 parts of K resin；19-25 parts of polystyrene；12.7-30.4 parts of styrene-acrylonitrile copolymer；1-3 part of Styrene-Butadiene-Styrene Block Copolymer；0.6-1 parts of light diffusing agent；0.4-0.8 parts of antioxidant；0.3-0.8 parts of lubricant.High rigidity light provided by the invention spreads K resin material, with K resin for main substrate, by the way that PS and AS is added, improve material rigidity, improve heat resistance, reach material it is heat-resisting, it is rigid, can deformability balance, and by increasing light diffusing agent, so that material has the characteristic of high transparency haze, and low to production technology and equipments requirement, production cost is low.
Description
Technical field
The present invention relates to field of material technology, especially a kind of high rigidity light diffusion K resin material and preparation method thereof.
Background technique
Generally the diffuser plate for keeping brightness uniformity can be arranged on light source periphery in LED illumination, and it is special which passes through
Material the point light source of LED lamp bead is changed into area source, while keeping higher light transmittance.The substrate of light diffusing sheet is big at present
Mostly using polycarbonate, transparent ABS, polymethyl methacrylate, polystyrene, transparent polypropylene etc..Light diffusing polycarbonate,
The transparent ABS market price is relatively high, and polymethyl methacrylate, polystyrene toughness are poor, and the product of production is easy cracking,
Transparent polypropylene transparency is relatively low and material physical property is relatively low, not scratch-resistant.
For the deficiency of the material, a kind of Chinese patent CN103073805A " high impact light diffusion polystyrene
Material and preparation method thereof ", it is indicated that 3-8 parts of K resin toughening polystyrene are used, the toughness of polystyrene is effectively improved, China
Patent CN107722484A " a kind of the composition of photodiffusion material and preparation method thereof " points out the poly- carbonic acid using 30%-45%
Ester polymer and polystyrene blend reduce the cost of photodiffusion material, but material disclosed in Chinese patent CN103073805A
Although cost is relatively low, rigidity is poor, can not fundamentally solve light diffusion lampshade and absorb impact load, easily broken generation fragment
The shortcomings that；Although the rigidity of material disclosed in Chinese patent CN107722484A satisfies the use demand, can also be by reducing poly- carbon
The content of acid esters reduces production cost, and practical is a kind of half-way house, and influence of the material cost vulnerable to polycarbonate cost reduces
Cost is limited, while PC and PS is partially compatible material, and the two refractive index has nuance, when dispersing uneven, is easy
Now similar to the crystal point of flake, production technology and equipments are required high.
Summary of the invention
To solve the low deficiency of the existing photodiffusion material high production cost mentioned in the prior art, rigidity, this hair
It is bright that a kind of high rigidity light diffusion K resin material is provided, it is made of the raw material of following parts by weight:
Preferably, the K resin is styrene-butadiene copolymer, and when layer is with a thickness of 2mm, light transmittance is 86-91%,
Refractive index 1.56.
Preferably, the polystyrene (referred to as PS) light transmittance when layer is with a thickness of 2mm is 88-92%, refractive index
1.59, melt flow rate (MFR) 4-20g/10min.
Preferably, styrene-acrylonitrile copolymer (referred to as AS) light transmittance when layer is with a thickness of 2mm is greater than
88%, refractive index 1.57, wherein acrylonitrile content is 25%, melt flow rate (MFR) 4-100g/10min.
Preferably, butadiene content 60% in the Styrene-Butadiene-Styrene Block Copolymer (referred to as SBS),
Melt flow rate (MFR) 3-5g/10min.
Preferably, the light diffusing agent is organic silicon light diffusing agent, and average grain diameter is 1-3 microns, refractive index 1.43.
Preferably, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester (i.e. antioxygen
Agent 1076) with the compounds of three [2.4- di-tert-butyl-phenyl] phosphite esters (i.e. irgasfos 168), compound proportion 1:1.
Preferably, the lubricant is ethylene bis stearamide.
The present invention also provides a kind of preparation methods of high rigidity light diffusion K resin material, comprising the following steps:
Step 1: weighing K resin, polystyrene, styrene-acrylonitrile copolymer, styrene-butadiene-benzene according to the ratio
Ethylene block copolymer is added in mixing tank, and the 10# white oil of above-mentioned raw materials gross mass 0.3%, mixed on low speed 5min is added；Again plus
Enter light diffusing agent mixed on low speed 5min, remaining other auxiliary agent mixed on low speed 5min are then added, obtain premix；
Step 2: premix prepared by step 1 is added twin-screw extrude extruding pelletization to get the expansion of high rigidity light
Dissipate K resin material；
Wherein double screw extruder temperature range is 180-210 DEG C.
Preferably, it is 36:1, screw speed 260-400r/min, feeding revolving speed 15- that the twin-screw, which goes out the draw ratio of machine,
30r/min。
Compared with prior art, high rigidity light provided by the invention spreads K resin material, with K resin for main substrate, leads to
Cross addition PS and AS, improve the rigidity of material, improve heat resistance, reach material it is heat-resisting, it is rigid, can deformability balance, and
By increasing light dispersing agent, so that material has the characteristic of high transparency low haze, and production technology and equipments are required with low, production
It is at low cost.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
The present invention provides embodiment 1-3 (each component is according to weight) as shown in table 1:
Table 1
| Material name | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| K resin | 45 | 50 | 60 |
| PS | 19 | 22 | 25 |
| AS | 30.4 | 24 | 12.7 |
| SBS | 3 | 2 | 1 |
| Light diffusing agent | 1 | 0.8 | 0.6 |
| Antioxidant 1076 | 0.4 | 0.3 | 0.2 |
| Irgasfos 168 | 0.4 | 0.3 | 0.2 |
| Lubricant | 0.8 | 0.6 | 0.3 |
The present invention also provides comparative example 1-4 (each component is according to weight) as shown in Table 2:
Table 2
| Material name | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| K resin | 45 | 45 | - | 45 |
| PS | - | 49.4 | 64 | 19 |
| AS | 50.4 | - | 30.4 | 30.4 |
| SBS | 3 | 3 | 3 | 3 |
| Light diffusing agent | 1 | 1 | 1 | - |
| Antioxidant 1076 | 0.4 | 0.4 | 0.4 | 0.4 |
| Irgasfos 168 | 0.4 | 0.4 | 0.4 | 0.4 |
| Lubricant | 0.8 | 0.8 | 0.8 | 0.8 |
Specifically, according in above table being embodiment and comparative example formula, the present invention also provides following preparation implementations
The scheme of example:
By taking embodiment 1 as an example, preparation method includes:
Step 1: weighing K resin, polystyrene, styrene-acrylonitrile copolymer, styrene-butadiene-benzene according to the ratio
Ethylene block copolymer is added in mixing tank, and the 10# white oil of above-mentioned raw materials gross mass 0.3%, mixed on low speed 5min is added；Again plus
Enter light diffusing agent mixed on low speed 5min, remaining other auxiliary agent mixed on low speed 5min are then added, obtain premix；
Step 2: premix prepared by step 1 is added twin-screw extrude extruding pelletization to get the expansion of high rigidity light
Dissipate K resin material；
Wherein double screw extruder temperature range is 180-210 DEG C.
Preferably, it is 36:1, screw speed 260-400r/min, feeding revolving speed 15- that the twin-screw, which goes out the draw ratio of machine,
30r/min。
Remaining embodiment and comparative example preparation method and above-mentioned almost the same, details are not described herein.
Correlated performance test is carried out by test bars are made according to the material of above-described embodiment 1-3 and comparative example 1-4 acquisition,
Specific test result is as shown in table 3:
Table 3
With the increase of K resin content, the extension at break of material it can be seen from the test data of upper table embodiment 1-3
Rate is got higher, and the ability resistant to bending of material is got higher；And the content of styrene-acrylonitrile copolymer is got higher, tensile strength of material, dimension card
Softening point improves, and heat resistance improves；Through comparison example 1 and comparative example 1 it can be found that the case where material does not add PS
Under, AS and K resin alloy, the decline of material transparent degree are used merely, mist degree is got higher, the reason for this is that AS and K resin are partially compatible,
It cannot be mixed thoroughly, in the discrepant situation of refractive index, transparency be caused to decline；Pass through comparison example 1 and comparative example 2
It can be found that it is not added with AS resin, the Vicat softening point of material, tensile strength decline；It can by comparison example 1 and comparative example 3
With discovery, it is not added with K resin, the elongation at break of material is only 3%, and material is brittle matrix；Pass through comparison example 1 and comparison
For example 4 it can be found that being not added with light diffusing agent, material passes through the reasonable cooperation of PS, AS, K resin, and transparency reaches 86, and mist degree is only
It is 10%.
High rigidity light diffusion K resin material provided by the invention, for main substrate, is increased just with PS and AS, is improved with K resin
Heat resistance, reach material it is heat-resisting, it is rigid, can deformability balance, and because PS and K resin are fully compatible system, the two can
With mixed without influencing transparency with arbitrary proportion, when K resin is blended with PS with special ratios, can make the refractive index of blend with
The refractive index of AS resin is completely the same, so that mixing material in fully transparent, has the characteristic of high transparency low haze, then with the ratio
The material of example is that substrate adds light diffusing agent, can prepare the photodiffusion material of high light transmission, haze.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of high rigidity light spreads K resin material, it is characterised in that: be made of the raw material of following parts by weight:
2. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the K resin is benzene second
Alkene-butadiene copolymer, when layer is with a thickness of 2mm, light transmittance is 86-91%, refractive index 1.56.
3. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the polystyrene is in layer
It is 88-92%, refractive index 1.59, melt flow rate (MFR) 4-20g/10min with a thickness of light transmittance when 2mm.
4. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the styrene-acrylonitrile
Copolymer light transmittance when layer is with a thickness of 2mm is greater than 88%, and refractive index 1.57, wherein acrylonitrile content is 25%, melt flows
Rate 4-100g/10min.
5. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the styrene-fourth two
Butadiene content 60% in alkene-styrene block copolymer, melt flow rate (MFR) 3-5g/10min.
6. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the light diffusing agent is to have
Machine silicon class light diffusing agent, average grain diameter are 1-3 microns, refractive index 1.43.
7. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the antioxidant be β-(3,
5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester and three [2.4- di-tert-butyl-phenyl] phosphite esters compound,
Compound proportion is 1:1.
8. a kind of high rigidity light as described in claim 1 spreads K resin material, it is characterised in that: the lubricant is ethylene
Bis-stearamides.
9. the preparation method of high rigidity light diffusion K resin material according to claim 1-8, it is characterised in that:
The following steps are included:
Step 1: weighing K resin, polystyrene, styrene-acrylonitrile copolymer, s-B-S according to the ratio
Block copolymer is added in mixing tank, and the 10# white oil of above-mentioned raw materials gross mass 0.3%, mixed on low speed 5min is added；Add light
Then diffusant mixed on low speed 5min is added remaining other auxiliary agent mixed on low speed 5min, obtains premix；
Step 2: premix prepared by step 1, which is added twin-screw extrude extruding pelletization, spreads K tree to get high rigidity light
Rouge material；
Wherein double screw extruder temperature range is 180-210 DEG C.
10. a kind of preparation method of high rigidity light diffusion K resin material according to claim 9, it is characterised in that: described
The draw ratio that twin-screw goes out machine is 36:1, screw speed 260-400r/min, feeding revolving speed 15-30r/min.
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| CN201811605426.4A CN109666240B (en) | 2018-12-26 | 2018-12-26 | High-rigidity photodiffusion K resin material and preparation method thereof |
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| CN201811605426.4A CN109666240B (en) | 2018-12-26 | 2018-12-26 | High-rigidity photodiffusion K resin material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607004A (en) * | 2019-09-20 | 2019-12-24 | 南京元初科技有限公司 | Environment-friendly composite plastic with pearlescent effect and preparation method thereof |
| CN112029224A (en) * | 2020-09-03 | 2020-12-04 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN112011145B (en) * | 2020-10-19 | 2021-04-02 | 江苏金发科技新材料有限公司 | Insect-proof transparent flame-retardant styrene composite material and preparation method and application thereof |
| CN115286877A (en) * | 2022-08-31 | 2022-11-04 | 金发科技股份有限公司 | Reinforced AS alloy material with low powder content and high transparency AS well AS preparation method and application thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607004A (en) * | 2019-09-20 | 2019-12-24 | 南京元初科技有限公司 | Environment-friendly composite plastic with pearlescent effect and preparation method thereof |
| CN112029224A (en) * | 2020-09-03 | 2020-12-04 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN112029224B (en) * | 2020-09-03 | 2022-01-14 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN114031885A (en) * | 2020-09-03 | 2022-02-11 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN114163765A (en) * | 2020-09-03 | 2022-03-11 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN114163765B (en) * | 2020-09-03 | 2024-01-09 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN114031885B (en) * | 2020-09-03 | 2024-01-09 | 南京元初科技有限公司 | Environment-friendly plastic with controllable transparency and multicolor patterns and preparation method thereof |
| CN112011145B (en) * | 2020-10-19 | 2021-04-02 | 江苏金发科技新材料有限公司 | Insect-proof transparent flame-retardant styrene composite material and preparation method and application thereof |
| CN115286877A (en) * | 2022-08-31 | 2022-11-04 | 金发科技股份有限公司 | Reinforced AS alloy material with low powder content and high transparency AS well AS preparation method and application thereof |
| CN115286877B (en) * | 2022-08-31 | 2023-11-03 | 金发科技股份有限公司 | Reinforced AS alloy material with low powder content and high transparency, and preparation method and application thereof |
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