CN104151734A - Metal cold pigment modified infrared reflection type colorful co-extruded profile and production process thereof - Google Patents

Abstract

The invention discloses a metal cold pigment modified infrared reflection type colorful co-extruded profile and a production method thereof, and relates to the technical field of co-extruded profiles. The co-extruded profile is characterized by comprising a PVC dry mix and special co-extrusion materials, wherein the PVC dry mix comprises 100 parts of PVC resin, 2.5-5 parts of stabilizing agent, 3-5 parts of lubricant, 10-50 parts of filling agent and 2-5 parts of modifier; the special co-extrusion materials comprise 50-100 parts of ASA and 2-10 parts of cold pigment. The production method comprises the following steps: (1) drying the special co-extrusion materials for 3-6 hours at 85-95 DEG C; (2) sufficiently mixing the components in the PVC dry mix; (3) co-extruding the raw materials treated in the step (1) and the step (2); (4) cooling, forming, pulling, pasting and cutting into a finished product according to set sizes.

Description

Metal cold pigment modification infrared external reflection type colorful co-extruded section and production technique thereof

Technical field

The present invention relates to co-extrusion section bar technical field, be specifically related to metal cold pigment modification infrared external reflection type colorful co-extruded section and production technique thereof.

Background technology

At present, the colorize technology of plastic door and windows profile mainly contains spraying, dyeing, overlay film, printing, bicolor co-extrusion etc. both at home and abroad.Co-extrusion and overlay film mainly be take as main in Europe, and north America region be take spraying as main.And domestic current several method has employing, wherein take color coextrusion as main flow direction.Current domestic colorful co-extruded section be take ASA (PMMA)/PVC co-extrusion as main, and it is obvious in the advantage of enriching aspect section bar product category, color, attractive in appearance, the weather resisteant that improves section bar.Current domestic doors and windows, the market share that the metal species product that the color aluminium of take is representative is impacting plastic material, therefore in order to make PVC plastic-steel section bar more have the market competitiveness, and further improves its weather resisteant, has great importance.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of weathering resistance strong, metal cold pigment modification infrared external reflection type colorful co-extruded section and the production technique thereof of resistance to solar light irradiation.

Technical problem to be solved by this invention realizes by the following technical solutions:

Metal cold pigment modification infrared external reflection type colorful co-extruded section, it is characterized in that: comprise the following PVC of comprising dry blend and co-extrusion PP Pipe Compound, described PVC dry blend is 100 parts of polyvinyl chloride resins, 2.5～5 parts of stablizers, 3～5 parts of lubricants, 10～50 parts of weighting agents, 2～5 parts of properties-correcting agent; Described co-extrusion PP Pipe Compound is 2～10 parts of ASA50～100 part and cold pigment.

Described properties-correcting agent is metallic aluminium pigment.

The production technique of described metal cold pigment modification infrared external reflection type colorful co-extruded section, is characterized in that: comprises the following steps,

(1), co-extrusion PP Pipe Compound is dried, drying temperature is 85～95 ℃, and the time length is 3～6h;

(2), each component in PVC dry blend is fully mixed;

(3), raw material after step (1) and step (2) processing is carried out to co-extrusion;

(4), cooling and shaping traction, pad pasting and scale cutting form finished product.

ASA refers to the terpolymer of vinyl cyanide (A), vinylbenzene (S), acrylate (A), the performance characteristics of ASA can be summed up as: (1) ASA belongs to unformed terpolymer, for saturated backbone structure, containing two keys, therefore very not strong to ultraviolet tolerance.Carbonyl in macromolecular chain and itrile group possess stronger ultraviolet-resistant capacity, and phenyl ring is typical rock steady structure, are difficult to photochemical reaction occurs, and therefore, ASA has extremely strong ultraviolet-resistant capacity, colour stable, excellent weather resistance and hard.ASA can also be as PVC properties-correcting agent.(2) owing to having introduced acrylic elastomer in ASA structure, make its multipolymer there is fabulous shock resistance, especially low-temperature impact resistance is good.(3), owing to containing itrile group in ASA structure, therefore there is extremely strong chemical resistance.(4) solubility parameter of ASA and PVC is very approaching, and both have good intermiscibility, and rheological property, thermal expansivity are more approaching.(5) ASA Heat stability is good in the course of processing, heat-drawn wire can reach 92 ℃, and co-extrusion section bar and PVC section bar fillet weld strength are basic identical.

The performance comparison of table 1ASA and PVC:

Use cold pigment, significantly improve the infrared reflection ability of colorful co-extruded section

The solar ray spectrum receiving on the earth can be divided into 3 major parts by wavelength difference, and the total energy ratio that each several part occupies is different: ultraviolet region (UV): 295～400nm, 5% of the total solar energy that occupation of land ball receives.Visible region (VIS): 400-720nm, 45% left and right of the total solar energy that occupation of land ball receives.Infrared region (IR): 720～2500nm, 50% left and right of the total solar energy that occupation of land ball receives.Different documents are not quite similar to the division of infrared wavelength range.Regulation 700～the 2500nm of American Society for Tests and Materials (ASTM) is near-infrared region (NIR).NIR is often divided into shortwave near infrared (SW-NIR) and long wave near infrared (LW-NIR), and its wavelength band is respectively 700,1100nm and l100～2500nm.Wherein most of concentration of energy is at 720～1100am, in the scope of shortwave near-infrared region.On the earth, all living things depend on the sun.The sun is given tellurian animal and biology the transmission ofenergy of oneself, and they can constantly be grown up.When giving mankind's grace, it is many negative that sunlight brings also to the mankind's life, or even destructive influences.A large amount of thermal radiations that the visible ray that object receives and sightless infrared light send, can make its surface temperature raise, and bring problems and inconvenience to the mankind's daily life.PVC colour section bar, under the irradiation in sunlight always of its colour plane, due to the thermal radiation of sunlight middle infrared (Mid-IR), makes Surface of profile under ultrared irradiation, temperature increase, and further affect its life-span.Due to the use of cold pigment, the raising of colour section bar surface red outside line reflection potential, makes product can not absorb heat being exposed to the sun of daylight, and its surface temperature, significantly lower than the colour section bar that does not use cold pigment, has improved the work-ing life of coloured prod.

Use metallic aluminium pigment, increase PVC section bar metallic surface effect

The metallic surface effect that aluminium section bar is good extremely receives an acclaim on market.Adding of metallic aluminium pigment, make plastic material also have texture and the effect of metallic surface.Particularly the appearance of the PVC co-extrusion section bar of argent and metallic gold effect, has been subject to human consumer's favor.It can part substitution of Al alloy product, the weather resistant color coextrusion PP Pipe Compound by co-extrusion one deck with metal finishing effect, make PVC plastic irregular profile section bar there is metal-like effect true to nature, with the plastic door-window of its making, realized on the one hand moulding for aluminium (steel), from the manufacture of product, use and recycling process has all possessed energy-saving and cost-reducing outstanding feature, for the Sustainable development of national economy, there is far-reaching social effect; Compare with existing metal door and window or timber window on the other hand, the colored ASA/PVC co-extrusion section bar of metal cold pigment modification infrared external reflection type with its peculiar metal finishing effect, very high weathering resistance, had the higher ratio of performance to price compared with low cost, has important economic implications for dealer and human consumer.

With its outstanding metallic surface effect, can well replace metallic aluminium section bar, and not lose its good metal effect; The application of metallic aluminium pigment makes plastic material also have various metals texture and effect, has improved the market competitiveness of plastic material, for human consumer provides more choices on doors and windows.

The application of cold pigment, makes plastic material have better weather resisteant, with its high performance reflected infrared, reduces the burn-in effects of daylight to it.The use of cold pigment, make plastic material reflected infrared under natural lighting, its surface temperature, significantly lower than undressed plastic material, the thermal isolation effect that cold pigment is good, plastic material can not absorbed heat under being exposed to the sun of daylight, and having solved plastic-steel section bar can not be for the manufacture of the problem of large-scale door and window.The uv reflectance that it is good and the performance such as corrosion-resistant also important in inhibiting aspect energy-conserving and environment-protective.

After passing through the temper(ing) of 6000 hours, its properties reaches the requirement of QB/T2976-2008 standard to aging resistance S class.(in QB/T2976-2008 standard, M class digestion time is 4000h, and S class digestion time is 6000h).

The invention has the beneficial effects as follows: infrared reflection ability is high, long service life, metal finishing is effective, have very high weathering resistance, compared with low cost, had the higher ratio of performance to price, has the very high market competitiveness.

Embodiment

For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.

Metal cold pigment modification infrared external reflection type colorful co-extruded section, comprises the following PVC of comprising dry blend and co-extrusion PP Pipe Compound, and PVC dry blend is 100 parts of polyvinyl chloride resins, 2.5～5 parts of stablizers, 3～5 parts of lubricants, 10～50 parts of weighting agents, 2～5 parts of properties-correcting agent; Co-extrusion PP Pipe Compound is 2～10 parts of ASA50～100 part and cold pigment.

Properties-correcting agent is metallic aluminium pigment.

The production technique of metal cold pigment modification infrared external reflection type colorful co-extruded section, comprises the following steps,

(1), co-extrusion PP Pipe Compound is dried, drying temperature is 90 ℃, and the time length is 5h;

(2), each component in PVC dry blend is fully mixed;

(3), raw material after step (1) and step (2) processing is carried out to co-extrusion;

(4), cooling and shaping traction, pad pasting and scale cutting form finished product.

More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (3)

1. metal cold pigment modification infrared external reflection type colorful co-extruded section, it is characterized in that: comprise the following PVC of comprising dry blend and co-extrusion PP Pipe Compound, described PVC dry blend is 100 parts of polyvinyl chloride resins, 2.5～5 parts of stablizers, 3～5 parts of lubricants, 10～50 parts of weighting agents, 2～5 parts of properties-correcting agent; Described co-extrusion PP Pipe Compound is 2～10 parts of ASA50～100 part and cold pigment.

2. metal cold pigment modification infrared external reflection type colorful co-extruded section according to claim 1 and production technique thereof, is characterized in that: described properties-correcting agent is metallic aluminium pigment.

3. the production technique of metal cold pigment modification infrared external reflection type colorful co-extruded section according to claim 1, is characterized in that: comprises the following steps,

(1), co-extrusion PP Pipe Compound is dried, drying temperature is 85～95 ℃, and the time length is 3～6h;

(2), each component in PVC dry blend is fully mixed;

(3), raw material after step (1) and step (2) processing is carried out to co-extrusion;

(4), cooling and shaping traction, pad pasting and scale cutting form finished product.