CN101434744B

CN101434744B - Mixture and encapsulating material

Info

Publication number: CN101434744B
Application number: CN 200710187104
Authority: CN
Inventors: 林志祥; 庄雅岚; 蔡佩容; 叶淑铃; 吴志郎; 康清炬; 高信敬
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2007-11-14
Filing date: 2007-11-14
Publication date: 2013-12-18
Anticipated expiration: 2027-11-14
Also published as: CN101434744A

Abstract

The invention provides a blend which contains 20 weight portions to 80 weight portions of polycarbonate, 20 weight portions to 80 weight portions of polyarylester and 20 weight portions to 80 weight portions of copolymers; in addition, the structural formula of the copolymers is shown above, wherein, R1 is the combination of at least two of cyclohexane dimethyl, vinyl, 2- methyl propyl and neo-amyl; R2 is the composition of at least two of naphthyl, phenyl, butyl and hexyl; and n is between 1500 and 3000. The copolymers have high transparency, high heat resistance, high UV yellowing resistance and high weather resistance, thus being applicable to serving as an encapsulation material of light-emitting components.

Description

Blending thing and packaged material

Technical field

The present invention relates to a kind of blending thing, relates more specifically to this blending thing in application and the composition thereof of packaged material.

Background technology

In the field of luminescence component, packaged material occupies considerable status.The photodiode (LED) of take is example, and its encapsulation need possess following condition with macromolecular material: transparency, heat resisting temperature, crystallinity, and the character such as crash worthiness.This known polymer of polyester is widely used on packaged material, but this material still has some shortcomings.For instance, polycarbonate (polycarbonate, hereinafter to be referred as PC) and polyarylester (polyarylate, hereinafter to be referred as PAR) are although have good transparency and heat resisting temperature (Tg>100 ℃), and the xanthochromia of anti-UV and mobility are poor.And ethylene glycol terephthalate (hereinafter to be referred as PET) has the preferably xanthochromia of anti-UV and mobility, but the poor (T of its heat resisting temperature _gbe about 70 ℃), do not meet the required high heat resisting temperature (T of its packaged material of LED _g>100 ℃).For head it off, the phenyl of the monomers terephthalic acid that part technique is used by PET is replaced as naphthyl, forms poly-2,6-naphthoic acid second diester (hereinafter to be referred as PEN).The degree of crystallinity of PEN is much larger than PET, its T _gbe about 108 ℃, can effectively promote the heat resisting temperature of packaged material.But the crystallinity of PEN is very good, easily crystallization and affect transparency, and the ejaculation packaging process of unfavorable follow-up high-temperature molten melt.In order to be easy to the advantage of processing and PEN high heat resistance in conjunction with PET, existing known technology adopts the mode of blending (blend) in conjunction with these two kinds of polymers.The PET of blending and PEN specification disunity, as long as PET and/or the polymerization degree of PEN or the character that the ratio difference affects the blending thing have the problems such as reproducibility and amplification in practical application.For the character of the packaged material of standardizing, need at present the new packaged material of design to complete the demand.

Summary of the invention

The object of the present invention is to provide a kind ofly not only be easy to processing but also had high heat resistance and be easy to normalized type material in practical application, this material can meet the required character of the packaged material of photodiode etc.

In order to realize purpose of the present invention, the invention provides a kind of blending thing, comprise the polycarbonate of 20 to 80 weight parts; The polyarylester of 20 to 80 weight parts; And the multipolymer of 20 to 80 weight parts, and multipolymer has the structure as shown in the formula 1:

(formula 1)

R wherein ₁hexanaphthene dimethyl, vinyl, 2-methyl-propyl, and the neo-pentyl composition of the two at least; R ₂naphthyl, phenyl, butyl, and the hexyl composition of the two at least; And n is 1500-3000.

The present invention also provides a kind of packaged material, comprises above-mentioned blending thing.

The blending thing of polymkeric substance provided by the invention have good heat resistance and be easy to processing characteristics, for packaged material the time, while especially penetrating packaging process the cycle short, can effectively reduce time cost; In addition, the transparency after this blending thing ejection formation is greater than 85%, and heat resisting temperature is greater than 100 ℃, and weather-proof/xanthochromia of anti-UV all is greater than 1500 hours, is conducive to be applied to the packaged material of luminescence component.

Embodiment

In order to improve the thermotolerance of packaged material, the invention provides a kind of blending thing, comprise the polycarbonate of 20 to 80 weight parts; The polyarylester of 20 to 80 weight parts; And the multipolymer of 20 to 80 weight parts and multipolymer to have a structural formula as follows:

(formula 1)

R wherein ₁hexanaphthene dimethyl, vinyl, 2-methyl-propyl, and the neo-pentyl composition of the two at least; R ₂naphthyl, phenyl, butyl, and the hexyl composition of the two at least; And n is 1500-3000.In the present invention part embodiment, when combination that R is hexanaphthene dimethyl and vinyl, the mol ratio of hexanaphthene dimethyl and vinyl is about 1: 99 to 99: 1, and the mol ratio of better hexanaphthene dimethyl and this vinyl is about 25: 75 to 35: 65.

The generation type of above-mentioned blending thing is to utilize the mode of physical mixed (compounding), and the PAR of different ratios, PC and multipolymer blending with formula 1 are formed to the blending thing.Be processed as example with ejaculation, the diameter of screw rod is 45mm, and the temperature of opening for feed is approximately between 230-250 ℃, and the temperature that penetrates section is about between 250-270 ℃, penetrates pressure approximately between 100-200kg/cm ², the drying temperature of the finished product after ejaculation and time are about 120 ℃ of * 3 hours.Take packaged LED as example, and the ejaculation cycle (cycle time), approximately between 30 to 60 seconds, can effectively reduce time cost.Because the transparency after blending thing ejection formation is greater than 85%, heat resisting temperature is greater than 100 ℃, and the xanthochromia of anti-UV and weathering resistance be greater than 1500 hours, and the blending thing of this case can be applicable to the packaged material of luminescence component as OLED.

For making the clearer feature of the present invention of those skilled in the art, the spy is schematically illustrated in following embodiment.

Embodiment 1

After the phthalic acid of getting the ethylene glycol of 1,4 cyclohexane dimethanol (CHDM), 7 molar part of 3 molar part and 10 molar part is placed in round-bottomed bottle, vacuumize after being heated to 240-290 ℃, carry out the esterification condensation reaction and form PETG.Get PETG, PC (the beautiful PC-175D of the rising sun), the PAR (UnitikaU-polymer of Different Weight part ), and PEN (new photosynthetic fibre) blending after, measure the character such as viscosity, Tg, transparency and the xanthochromia of anti-UV of blending thing.Weight ratio and physical properties that above-mentioned blending thing forms are as shown in table 1.

Table 1

The PC weight part	The PETG weight part	The PAR weight part	The PEN weight part	Viscosity	Tg(℃)	Transparency (%)	The xanthochromia of anti-UV (hour)
								100	0	0	0	NA	130	90	＜1000
0	100	0	0	0.57	67.8	88	＞3000
								0	0	100	0	0.63	190.2	85	＞1500
80	20	0	0	0.60	112	88	＞1000
								50	50	0	0	0.63	103.4	88	＞1500
20	80	0	0	0.63	105	84	＞1000
								80	0	20	0	0.60	151.3	87	＞1000
50	0	50	0	0.63	163.7	85	＞1500
								20	0	80	0	0.53	172.3	85	＞1500
60	20	20	0	0.61	118.3	85	＞1500
								40	30	30	0	0.58	126.8	86	＞2000
0	0	0	100	0.65	120	88	＞1000
								80	0	0	20	0.67	128.3	90	＞1000
50	0	0	50	0.62	124.7	88	＞1000
								20	0	0	80	0.65	121.3	88	＞1000
0	0	80	20	0.58	169.1	86	＞1000

0	0	50	50	0.58	154.5	86	＞1000
								0	0	20	80	0.60	127.6	88	＞1000

The transparency of the blending thing of polymkeric substance all can maintain more than 85%, and weather-proof/xanthochromia of anti-UV all is greater than 1500 hours.

Although the present invention discloses as above with several preferred embodiments; so it is not in order to limit the present invention; have and usually know the knowledgeable in technical field under any; without departing from the spirit and scope of the present invention; when changing arbitrarily and retouching, so protection scope of the present invention is as the criterion when looking accompanying claims person of defining.

Claims

1. a blending thing comprises:

The polycarbonate of 20 to 80 weight parts;

The polyarylester of 20 to 80 weight parts; And

The multipolymer of 20 to 80 weight parts, and this multipolymer is to vacuumize and carry out the esterification condensation reaction and form after the phthalic acid of the ethylene glycol of the 1,4 cyclohexane dimethanol of getting 3 molar part, 7 molar part and 10 molar part is heated to 240-290 ℃.

2. blending thing according to claim 1, its transparency is greater than 85%.

3. blending thing according to claim 1, its heat resisting temperature is greater than 100 ℃.

4. blending thing according to claim 1, its xanthochromia of anti-UV and weathering resistance are greater than 1500 hours.

5. a packaged material, comprise blending thing claimed in claim 1.