阅读说明：本技术 一种暖边间隔条及其制备方法 (Warm edge spacing bar and preparation method thereof ) 是由 王伟欣 陈领彦 刁建志 于 2019-09-20 设计创作，主要内容包括：本发明公开了一种暖边间隔条及其制备方法,其中暖边间隔条制成其的原料包括：40-80份聚丙烯树脂、10-40份玻璃纤维、3-10份相容剂、1-4份协同相容剂、2-5份抗氧化剂、2-6份加工助剂。而上述暖边间隔条的制备方法为：1)混料；2)造粒；3)成型。本发明通过制备一种非金属材料的间隔条,使间隔条能够达到自身质量稳定、隔热性能好、耐久性较高、密封效果好的特性；同时,其制备过程简单,在其制备过程中不会产生有害环境的污染物。(The invention discloses a warm edge spacing strip and a preparation method thereof, wherein the warm edge spacing strip is prepared from the following raw materials: 40-80 parts of polypropylene resin, 10-40 parts of glass fiber, 3-10 parts of compatilizer, 1-4 parts of synergistic compatilizer, 2-5 parts of antioxidant and 2-6 parts of processing aid. The preparation method of the warm edge spacing bar comprises the following steps: 1) mixing materials; 2) granulating; 3) and (5) molding. According to the invention, by preparing the spacing bar made of the non-metallic material, the spacing bar can achieve the characteristics of stable quality, good heat insulation performance, higher durability and good sealing effect; meanwhile, the preparation process is simple, and pollutants harmful to the environment can not be generated in the preparation process.)

1. The warm edge spacing bar is characterized in that raw materials for manufacturing the warm edge spacing bar comprise: 40-80 parts of polypropylene resin, 10-40 parts of glass fiber, 3-10 parts of compatilizer, 1-4 parts of synergistic compatilizer, 2-5 parts of antioxidant and 2-6 parts of processing aid.

2. A warm-edge spacer as claimed in claim 1 wherein the raw material from which it is made further comprises 0.2 to 2 parts of a colour concentrate.

3. A warm-edge spacer as claimed in claim 1 or claim 2 wherein the co-compatibiliser is one or more of succinimide, bismaleimide and polyamideimide.

4. the warm edge spacer of claim 3, wherein the compatibilizer is one or more of PP grafted acrylic acid, PP grafted glycidyl methacrylate, PP grafted maleic anhydride, PP multi-monomer grafted maleic anhydride, PP grafted methacrylic acid, PP grafted methyl methacrylate, and PP grafted methyl acrylate.

5. A warm edge spacer as claimed in claim 4 wherein the antioxidant is one or more of antioxidant 168, antioxidant WINOX423, antioxidant 1010, antioxidant 2112; the processing aid is one or more of epoxy acrylate, polyol benzoate, methyl methacrylate, di-n-butyl phthalate and benzhydryl diisocyanate.

6. A warm-edge spacer as claimed in claim 5 wherein the colour concentrate is a single colour concentrate.

7. A method of preparing a warm-edge spacer as claimed in any one of claims 1 to 6, comprising the steps of, in order:

1) Mixing materials: adding polypropylene resin, glass fiber, a compatilizer, a synergistic compatilizer, an antioxidant and a processing aid into a high-speed mixer, and uniformly mixing to obtain a mixed material A for later use;

2) and (3) granulation: adding the mixed material A into a double-screw extruder for extrusion, and cutting and granulating by a plastic granulator to obtain particles B;

3) molding: and adding the particles B into a single-screw extruder, performing melt extrusion, molding, and coating a composite film to obtain a product M.

8. The method for preparing a warm edge spacer as claimed in claim 7, wherein the color masterbatch is added to the high speed mixer together with other components in step 1) and mixed uniformly; mixing the color master batch with the mixed material A in the step 2) and adding the mixture into the double-screw extruder; the color masterbatch is mixed with the granules B in step 3) and added to the single screw extruder.

9. the method as claimed in claim 8, wherein the temperatures of the sections of the twin-screw extruder in step 2) are 178-; the temperatures of the sections of the single-screw extruder in the step 3) are 192-.

10. the method as claimed in claim 8, wherein the speed of the high speed mixer in step 1) is 600-3000r/min, and the mixing time is 15-60 min; the screw rotating speed of the double-screw extruder in the step 2) is 20-210r/min, and the feeding speed is 350-620 kg/h; the screw rotating speed of the single-screw extruder in the step 3) is 310-620r/min, and the feeding speed is 12-35 kg/h.

Technical Field

the invention belongs to the field of building products, particularly relates to a warm edge spacing bar and further provides a preparation method of the warm edge spacing bar.

Background

Along with the gradual improvement of the living standard of people, the energy-saving standard of buildings is gradually improved, meanwhile, the energy conservation and emission reduction are gradually the consensus of the nation and people, and how to reduce the energy consumption of the buildings becomes a very important problem in the building industry.

As the national residential buildings, ultra-low energy consumption buildings and passive buildings are gradually popularized and popularized, not only higher requirements are put forward on the performances of doors and windows of buildings, but also more strict requirements are put forward on the performances and service lives of hollow glass, in order to meet the requirements, not only the thermal insulation performance of the sections of the doors and windows needs to be greatly improved, but also the thermal insulation performance of the hollow glass spacing bars needs to be improved as thermal insulation performance parts, at home, the traditional aluminum alloy materials are mostly adopted as the spacing bars (the thermal conductivity coefficient of pure aluminum is 202W/(m.K), the thermal conductivity coefficient of aluminum alloy is generally 130 ~ 150W/(m.K), as long as any spacing bar with the thermal conductivity coefficient lower than that of aluminum alloy is called as a warm-side spacing bar, otherwise called as a cold-side spacing bar), at abroad, due to the requirements on environmental protection, energy conservation and the like, and the popularization of passive buildings, the warm-side spacing bars are all adopted as warm-side spacing bars produced by Technohm company, for example, the thermal conductivity coefficient of stainless steel (17W/m.K) and the thermal conductivity of polypropylene (0.K) is not good and does not meet the requirements of thermoplastic foaming, and the fundamental reduction of the thermal conductivity of thermoplastic glass-thermoplastic foaming, and the thermal insulation effect of the thermal insulation of the thermoplastic foam is not achieved.

Therefore, the problem to be solved by the current consumer market is to prepare a warm edge spacer with high heat insulation, high sealing performance and high comfort.

Disclosure of Invention

The invention aims to provide a warm edge spacing strip, which solves the problems of poor heat insulation and poor sealing of the existing warm edge spacing strip.

In order to achieve the purpose, the invention adopts the technical scheme that:

A warm edge spacer is prepared from the following raw materials: 40-80 parts of polypropylene resin, 10-40 parts of glass fiber, 3-10 parts of compatilizer, 1-4 parts of synergistic compatilizer, 2-5 parts of antioxidant and 2-6 parts of processing aid.

The technical scheme of the invention is further improved as follows: the raw materials for preparing the color masterbatch also comprise 0.2-2 parts of color masterbatch.

the technical scheme of the invention is further improved as follows: the synergistic compatilizer is one or more of succinimide, bismaleimide and polyamide imide.

The technical scheme of the invention is further improved as follows: the compatilizer is one or more of PP grafted acrylic acid, PP grafted glycidyl methacrylate, PP grafted maleic anhydride, PP multi-monomer grafted maleic anhydride, PP grafted methacrylic acid, PP grafted methyl methacrylate and PP grafted methyl acrylate.

the technical scheme of the invention is further improved as follows: the antioxidant is one or more of antioxidant 168, antioxidant WINOX423, antioxidant 1010 and antioxidant 2112.

The technical scheme of the invention is further improved as follows: the processing aid is one or more of epoxy acrylate, polyol benzoate, methyl methacrylate, di-n-butyl phthalate and benzhydryl diisocyanate.

The technical scheme of the invention is further improved as follows: the color concentrates have different colors.

The invention also provides a preparation method of the warm edge spacer, which comprises the following steps in sequence:

1) Mixing materials: adding polypropylene resin, glass fiber, a compatilizer, a synergistic compatilizer, an antioxidant and a processing aid into a high-speed mixer, and uniformly mixing to obtain a mixed material A for later use;

2) and (3) granulation: adding the mixed material A into a double-screw extruder for extrusion, and cutting and granulating by a plastic granulator to obtain particles B;

3) Molding: and adding the particles B into a single-screw extruder, performing melt extrusion, molding, and coating a composite film to obtain a product M.

The technical scheme of the invention is further improved as follows: adding the color masterbatch and other components into the high-speed mixer in the step 1) and uniformly mixing; mixing the color master batch with the mixed material A in the step 2) and adding the mixture into the double-screw extruder; the color masterbatch is mixed with the granules B in step 3) and added to the single screw extruder.

the technical scheme of the invention is further improved as follows: the temperature of each section of the double-screw extruder in the step 2) is 178-186 ℃, 187-192 ℃, 193-197 ℃, 194-198 ℃ and 188-192 ℃; the temperatures of the sections of the single-screw extruder in the step 3) are 192-.

The technical scheme of the invention is further improved as follows: the rotating speed of the high-speed material mixer in the step 1) is 600-3000r/min, and the material mixing time is 15-60 min; the screw rotating speed of the double-screw extruder in the step 2) is 20-210r/min, and the feeding speed is 350-620 kg/h; the screw rotating speed of the single-screw extruder in the step 3) is 310-620r/min, and the feeding speed is 12-35 kg/h.

Compared with the prior art, the invention has the following progress: according to the invention, by preparing the spacing bar made of the non-metallic material, the spacing bar can achieve the characteristics of stable quality, good heat insulation performance, higher durability and good sealing effect; the synergistic compatilizer is added, so that the mechanical property of the spacer material is greatly improved, and the stability and the ultraviolet irradiation performance of the material are improved.

Furthermore, the preparation process is simple, and no pollutant harmful to the environment is generated in the preparation process.

Detailed Description

The present invention is described in further detail below with reference to specific examples, which are intended to be illustrative only and not limiting.