阅读说明：本技术 超分散瓷白母粒其制备方法和应用 (Ultra-dispersed ceramic white master batch and preparation method and application thereof ) 是由 吴洲 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种超分散瓷白母粒,按质量百分比计,包括如下组分：载体树脂84％～99.8％、阻燃剂0％～2.5％、抗氧剂0.01％～1.5％、分散剂0.1％～3％、增韧剂0.3％～5％、钛白粉1％-3％,颜料0％～2.0％。本发明的超分散瓷白母粒成本低、性能优、冲击强度和熔融指数参数稳定、产品的成品率高；可同时应用于面板、中框、底座,通用一种材料,方便生产厂商统一备料；大大降低生产成本,巧妙消除插孔注塑结合线、面板混色,提高了开关面板的美观性。(The invention discloses a super-dispersed ceramic white master batch which comprises the following components in percentage by mass: 84 to 99.8 percent of carrier resin, 0 to 2.5 percent of flame retardant, 0.01 to 1.5 percent of antioxidant, 0.1 to 3 percent of dispersant, 0.3 to 5 percent of flexibilizer, 1 to 3 percent of titanium pigment and 0 to 2.0 percent of pigment. The ultra-dispersed ceramic white master batch disclosed by the invention is low in cost, excellent in performance, stable in impact strength and melt index parameters and high in yield of products; the material can be simultaneously applied to the panel, the middle frame and the base, is universal, and is convenient for manufacturers to uniformly prepare materials; greatly reduces the production cost, skillfully eliminates the injection molding binding line of the jack and the color mixing of the panel, and improves the aesthetic property of the switch panel.)

1. The ultra-dispersed porcelain white master batch is characterized by comprising the following components in percentage by mass:

2. the ultra-dispersed porcelain white master batch according to claim 1, which comprises the following components in percentage by mass:

3. the ultra-dispersed porcelain white master batch according to claim 1 or 2, wherein the carrier resin is at least one of PC and ABS; wherein the melt index of PC is between 10MI and 50 MI; the melt index of ABS is between 7MI and 30 MI.

4. The ultra-dispersed ceramic white master batch according to claim 1 or 2, wherein the flame retardant is one or more of a silsesquioxane flame retardant, a phosphate flame retardant or potassium 3-benzenesulfonyl benzenesulfonate.

5. The ultra-disperse white master batch according to claim 1 or 2, wherein the antioxidant is a hindered phenol antioxidant or an auxiliary antioxidant.

6. The ultra-dispersed porcelain white master batch according to claim 1 or 2, wherein the dispersant is one or more of a polymer wax, an aliphatic multifunctional modifier and a polyol compound.

7. The ultra-dispersed porcelain white master batch according to claim 1 or 2, wherein the toughening agent is one or more of MBS, copolymerized methyl methacrylate and butadiene-styrene; the titanium dioxide is one or more of titanium dioxide R248, TC30, 104 and 108.

8. The preparation method of the ultra-dispersed porcelain white master batch according to any one of claims 1 to 7, characterized by comprising the following steps:

(1) uniformly stirring carrier resin, a flame retardant, an antioxidant, a dispersant, a toughening agent, titanium dioxide and pigment according to a ratio to obtain a mixture;

(2) and (2) granulating the mixture obtained in the step (1) by using a double-screw extruder to obtain the ultra-dispersed ceramic white master batch.

9. The application method of the ultra-dispersed porcelain white master batch according to any one of claims 1 to 8, characterized by comprising the following steps: mixing the ultra-dispersed ceramic white master batch with raw materials in a proportion of 1: 9-11 weight ratio; the raw material is general PC material, and the melt index is between 8MI and 35 MI.

10. The use of the ultra-disperse white porcelain masterbatch according to any one of claims 1 to 8, wherein the ultra-disperse white porcelain masterbatch is used for injection molding of a switch panel, a center frame or a base.

Technical Field

The invention belongs to the field of flame-retardant PC materials, and particularly relates to a preparation method of a super-dispersed ceramic white master batch and application of the super-dispersed ceramic white master batch in injection molding of switch panels, middle frames and bases.

Background

The switch is a common electric device, the common switch is a panel switch, also called a switch socket, and the switch socket is an electric appliance switch and a socket which are installed on a wall and used for connecting and disconnecting a circuit, and sometimes the switch socket has a certain decoration function for the sake of beauty.

The switch panel in the market at present adopts a full grain extraction modification process, but the traditional full grain extraction modification process has high cost for producing injection molding switch panels, middle frames and bases; meanwhile, the physical parameters and the comprehensive performance of the product of the new material produced by the full grain extraction process can be reduced by about 8 percent; in addition, if the raw materials are used for stirring the flame retardant, the titanium dioxide, the pigment and the related auxiliary agents, the process production can cause serious environmental pollution; if the expensive full grain extraction process is not used for production, the color mixing on the surface of the switch is serious, serious titanium dioxide grains can appear, qualified products cannot be normally produced, and meanwhile, a bonding line is arranged at each jack of the panel, so that the attractiveness of the panel is seriously influenced. On the premise of ensuring the service performance and the attractiveness of the switch, the key technical breakthrough of the industry is how to reduce the production cost as much as possible and solve the problem of material dispersion.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide the ultra-dispersed ceramic white master batch. The invention also aims to provide the preparation method of the ultra-dispersed ceramic white master batch, which can realize uniform dispersion without fully extracting granules and greatly reduce the production cost. Further, the invention provides application of the ultra-dispersed ceramic white master batch, and the ultra-dispersed ceramic white master batch is used in the fields of injection molding switch panels, middle frames and bases.

The invention adopts the following technical scheme:

the ultra-dispersed ceramic white master batch comprises the following components in percentage by mass:

the ultra-dispersed ceramic white master batch comprises the following components in percentage by mass:

further, the carrier resin is at least one of PC and ABS; PC melt index is between 10MI and 50MI, e.g. 10MI, 20MI, 30MI, 40MI, 50 MI; the ABS melt index is between 7MI and 30MI, such as 7MI, 10MI, 20MI, 30 MI.

Further, the flame retardant is one or more of a silsesquioxane flame retardant, a phosphate flame retardant or 3-benzenesulfonyl potassium benzenesulfonate, and the silsesquioxane flame retardant is in any structure type of a random structure, a trapezoid structure and a cage-type silsesquioxane flame retardant. For example, the cage type silsesquioxane-based flame retardant in the present invention may be 9, 10-dihydro-9-ethanedioic acid-10-phosphaphenanthrene-10-oxide cage type silsesquioxane (DOPO-POSS), octatetramethylammonio cage type silsesquioxane (octaTMA-POSS), aminopropylisobutyl-POSS, vinyl silsesquioxane (OvPOSS), octahedral methyl-POSS, dodecylphenyl-POSS, polyvinyl silsesquioxane (FQ-POSS), or the like.

The phosphoric acid ester-based flame retardant may be tris (2-chloroethyl) phosphate (TCEP), tris (isopropylphenyl) phosphate (IPPP), dimethyl methyl phosphate (DMMP), diethyl ethyl phosphate (DEEP), and the like.

Further, the antioxidant is a hindered phenol antioxidant or an auxiliary antioxidant, and can be one or more of tetra [ beta- (3.5-di-tert-butyl, 4-hydroxyphenyl) propionic acid ] pentaerythritol ester alcohol, beta- (3.5-di-tert-butyl, 4-hydroxyphenyl) propionic acid octadecyl ester and 1, 3, 5-trimethyl-2, 4, 6- (3, 5-di-tert-butyl-4-hydroxybenzyl) benzene.

Further, the dispersing agent is one or more of polymer wax, aliphatic multifunctional modifier and polyalcohol compounds.

Furthermore, the aliphatic multifunctional modifier can be used for modifying aliphatic acrylate polyurethane oligomer, can well improve the compatibility of each component of a system, promote plasticization, improve processing fluidity, reduce the torque of processing equipment, reduce processing energy consumption, improve production efficiency and obviously improve the surface gloss performance of a product.

Further, the toughening agent is one or more of copolymerized methyl methacrylate and butadiene-styrene; the toughening agent is selected from M701 of Mitsubishi chemical.

Further, the titanium dioxide is one or more of titanium dioxide R248, TC30, 104 and 108.

Further, the preparation method of the ultra-dispersed ceramic white master batch comprises the following steps:

(1) adding the carrier resin, the flame retardant, the antioxidant, the dispersant, the toughening agent, the titanium dioxide and the pigment into a high-speed mixing roll according to the proportion, and uniformly stirring to obtain a mixture;

(2) and (2) carrying out double-screw granulation on the mixture obtained in the step (1) to obtain the ultra-dispersed ceramic white master batch.

Further, the specific parameters in step (2) are as follows:

table 1: twin screw granulation parameters

Temperature zone	Region 1	Zone 2	Zone 3	Zone 4	Zone 5	Zone 6	Zone 7	Zone 8	Die head
										Temperature/. degree.C	200	230	225	230	225	220	220	220	240
Speed rpm/min	550	560	580	575	595	620	650	720	780

Further, the area 1 is a blanking area.

Table 2: parameters of high-speed mixing mill

Temperature/. degree.C	At normal temperature	40℃	60℃	80℃	100℃
						Speed rpm/min	500	2600	2800	2800	2800

Further, an application method of the ultra-dispersed ceramic white master batch is characterized by comprising the following steps: mixing the ultra-dispersed ceramic white master batch with raw materials in a proportion of 1: 9-11, for example 1: 9. 1: 1:0, 1:11, preferably 1: 10; the raw material is general PC material, and the melt index is between 8MI and 35MI, such as 8MI, 15MI, 25MI and 35 MI.

Further, the application of the ultra-dispersed white porcelain master batch is used in the fields of injection molding switch panels, middle frames and bases.

Furthermore, all domestic manufacturers and international advanced manufacturers (for example, bayer and madison) adopt the full grain extraction process to produce the switch panel PC material in order to overcome the problem of the jack injection molding bonding line caused by uneven diffusion of the PC material, but the full grain extraction process has high cost, and about 1500 yuan grain extraction cost is increased for 1T (see table 3 specifically), which is not favorable for reducing the cost and quantizing the production. The aliphatic multifunctional modifier introduced by the invention can well improve the compatibility of each component of the system, promote plasticization, improve processing fluidity, reduce the torque of processing equipment, reduce processing energy consumption, improve production efficiency and obviously improve the surface gloss performance of products. The dispersing agent is used for the production process of the PC material of the switch panel for the first time, and after the dispersing agent is added, a full grain extraction process is not needed, and the method can completely overcome the problem of jack injection molding bonding lines with uneven panel dispersion caused by the production of the PC material added with a flame retardant, titanium dioxide, pigment and related auxiliaries. Compared with the traditional full grain extraction process, the production process disclosed by the invention has the advantages that the cost is greatly reduced, the problem of a bonding line and the problem of panel color mixing are well solved, and the technical obstacle of the industry is broken through.

Compared with the prior art, the invention has the beneficial effects that:

(1) the ultra-dispersed ceramic white master batch prepared by the preparation method is low in cost and suitable for large-scale production;

(2) the physical property parameters and the comprehensive performance of the product of the new material produced by the full grain extraction process can be reduced by about 8 percent, so that the ultra-dispersed ceramic white master batch material obtained by the preparation method can maintain the optimal physical property parameters and the comprehensive performance of the product, has better performance, more stable impact strength and melt index parameters, and has higher yield of the product;

(3) the ultra-dispersed ceramic white master batch obtained by the preparation method can be simultaneously applied to a panel, a middle frame and a base, is universal for one material, and is convenient for manufacturers to uniformly prepare materials;

(4) on the basis of greatly reducing the cost, the ultra-dispersed white porcelain master batch prepared by the preparation method skillfully eliminates the jack injection molding binding line and the panel color mixing, improves the aesthetic property of the switch panel and realizes the decorative performance of the switch panel.

Detailed Description

For better explanation of the present invention, the following specific examples are further illustrated, but the present invention is not limited to the specific examples.