CN109624284A - SiO is mass produced using inflation film manufacturing machine2The method for radiating cooling film - Google Patents

SiO is mass produced using inflation film manufacturing machine2The method for radiating cooling film Download PDF

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Publication number
CN109624284A
CN109624284A CN201910050583.1A CN201910050583A CN109624284A CN 109624284 A CN109624284 A CN 109624284A CN 201910050583 A CN201910050583 A CN 201910050583A CN 109624284 A CN109624284 A CN 109624284A
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China
Prior art keywords
ldpe
density polyethylene
low density
powder
sio
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CN201910050583.1A
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Chinese (zh)
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CN109624284B (en
Inventor
周志华
刘俊伟
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Tianjin University
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Tianjin University
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Priority to CN201910050583.1A priority Critical patent/CN109624284B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

SiO is mass produced using inflation film manufacturing machine the invention discloses a kind of2The method for radiating cooling film: by low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO2Powder is sufficiently mixed stirring outside inflation film manufacturing machine；Inflation film manufacturing machine is opened, heating temperature is transferred to 220 DEG C, film thickness is tuned into 50 microns；Mixture after the first step is stirred is added in the lower hopper of inflation film manufacturing machine, and the weight by particle itself enters screw rod from hopper, is gradually heated up；Low density polyethylene (LDPE) particle, the low density polyethylene (LDPE) powder of melting are wrapped up in and take SiO2Powder comes out through the head filter screen decontamination of inflation film manufacturing machine from die head die orifice, through collapser pressure after inflation, cooling, is batched by traction roller finished films being rolled into cylinder.The present invention can be SiO2The application for radiating cooling film provides the production method of low-coat scale.

Description

SiO is mass produced using inflation film manufacturing machine2The method for radiating cooling film
Technical field
The present invention relates to cooling fields, and SiO is mass produced using inflation film manufacturing machine more specifically, it relates to a kind of2Radiation The method of cooling film.
Background technique
Currently, there are many methods for the preparation of film, and passive type radiation cooling is in conceptual phase, is up to big rule quickly The mould application stage.Radiation is cooling there are many form, can be mass-produced and lower-cost SiO2Radiate the preparation of cooling film Also in laboratory stage, also need further to study and explore applied to large-scale production.
Summary of the invention
The purpose of the present invention is to solve be based on SiO2Compound cooling film large-scale production problem, a kind of utilization is provided SiO is mass produced in inflation film manufacturing machine2The method for radiating cooling film, can be SiO2The application for radiating cooling film provides low-coat scale The production method of property.
The purpose of the present invention is what is be achieved through the following technical solutions.
SiO is mass produced using inflation film manufacturing machine in the present invention2The method for radiating cooling film, comprising the following steps:
Step 1: by low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO2Powder 70:30:6 in mass ratio, Stirring is sufficiently mixed outside inflation film manufacturing machine；
Step 2: opening inflation film manufacturing machine, heating temperature is transferred to 220 DEG C, film thickness is tuned into 50 microns；
Step 3: mixture after the first step is stirred is added in the lower hopper of inflation film manufacturing machine, by particle itself weight from Hopper enters screw rod, is gradually heated up；
Step 4: the low density polyethylene (LDPE) particle of melting, low density polyethylene (LDPE) powder are wrapped up in and take SiO2Powder is through inflation film manufacturing machine Head filter screen decontamination comes out from die head die orifice, through collapser pressure after inflation, cooling, is batched by traction roller finished product is thin Film roll is at cylinder.
The low density polyethylene (LDPE) particle and low density polyethylene (LDPE) powder are all made of common low density polyethylene (LDPE), for cooling down The light of film emission layer penetrates, 107-112 DEG C of fusing point, melt flow rate (MFR) 3.0-5.0g/10min, the low density polyethylene (LDPE) The partial size of particle is 4-5mm, and the partial size of the low density polyethylene (LDPE) powder is 100 mesh.
The SiO2Powder is for emitting infrared ray, and using nanoscale rounded bulbous powder, partial size is 8 microns.
Compared with prior art, the beneficial effects brought by the technical solution of the present invention are as follows:
(1) low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO in the present invention2The mass ratio of powder is 70:30: 6 are sufficiently mixed stirring outside inflation film manufacturing machine, by the proportion of low density polyethylene (LDPE) granularity, solve by a kind of low density polyethylene (LDPE) Partial size bring SiO2It is unevenly distributed, is unable to the problem of continuous film forming.
(2) to be all made of common low-density low-density poly- for low density polyethylene (LDPE) particle and low density polyethylene (LDPE) powder in the present invention Ethylene, for guaranteeing the high permeability of film, low density polyethylene (LDPE) particle is used for the normal production of inflation film manufacturing machine, low density polyethylene (LDPE) powder For SiO2Powder entrainment, SiO2Powder is for emitting infrared ray.
(3) present invention can be mass produced using common inflation film manufacturing machine, be used for low-density polyethylene material and nanoscale SiO2Powder is fused together, and blows film forming, solves the problems, such as that laboratory process cannot be mass produced.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, embodiment of the present invention is done further below Ground detailed description.
SiO is mass produced using inflation film manufacturing machine in the present invention2The method for radiating cooling film, comprising the following steps:
Step 1: by low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO2Powder is sufficiently stirred outside inflation film manufacturing machine It is uniformly mixed, prevents because of SiO2Powder diameter is small, density is big and sinks to the bottom, and ratio is unbalanced when the lower hopper of inflation film manufacturing machine is added.
Wherein, low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO2The mass ratio of powder is 60:40:6, mixing Produce radiation cooling film.The low density polyethylene (LDPE) particle and low density polyethylene (LDPE) powder are used for the light of cooling film emission layer Through carrying SiO2Powder, the low density polyethylene (LDPE) particle and low density polyethylene (LDPE) powder are all made of common low density polyethylene Alkene, for guaranteeing the high permeability of film, 107-112 DEG C of fusing point, melt flow rate (MFR) 3.0-5.0g/10min.The low-density is poly- The partial size of ethylene particle is 4-5mm, the normal production for inflation film manufacturing machine.The partial size of the low density polyethylene (LDPE) powder is about 100 Mesh, end are used for SiO2Powder entrainment.The SiO2Powder is for emitting infrared ray, using micron order rounded bulbous powder, partial size For 8 microns.
Step 2: opening inflation film manufacturing machine, heating temperature is transferred to 220 DEG C or so, film thickness is tuned into 50 microns.Wherein, blown film Machine is used for low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder and nanoscale SiO2Powder is fused together, and is blow molded into Film.
Step 3: the mixture after the first step is uniformly mixed is added in the lower hopper of inflation film manufacturing machine, particle itself is leaned on Weight enter screw rod from hopper, be gradually heated up.
Step 4: the low density polyethylene (LDPE) particle of melting, low density polyethylene (LDPE) powder are wrapped up in and take SiO2Powder is through inflation film manufacturing machine Head filter screen decontamination comes out from die head die orifice, through collapser pressure after inflation, cooling, is batched by traction roller finished product is thin Film roll is at cylinder.
Although function and material of the invention are described above, the invention is not limited to above-mentioned specific function Energy and material requirements, above-mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very Multi-form, all of these belong to the protection of the present invention.

Claims (3)

1. a kind of be mass produced SiO using inflation film manufacturing machine2The method for radiating cooling film, which comprises the following steps:
Step 1: by low density polyethylene (LDPE) particle, low density polyethylene (LDPE) powder, SiO2Powder 70:30:6 in mass ratio, in blown film Stirring is sufficiently mixed outside machine；
Step 2: opening inflation film manufacturing machine, heating temperature is transferred to 220 DEG C, film thickness is tuned into 50 microns；
Step 3: mixture after the first step is stirred is added in the lower hopper of inflation film manufacturing machine, the weight by particle itself is from hopper Into screw rod, it is gradually heated up；
Step 4: the low density polyethylene (LDPE) particle of melting, low density polyethylene (LDPE) powder are wrapped up in and take SiO2Head mistake of the powder through inflation film manufacturing machine Strainer decontamination comes out from die head die orifice, through collapser pressure after inflation, cooling, is batched by traction roller and is rolled into finished films Cylinder.
2. according to claim 1 be mass produced SiO using inflation film manufacturing machine2The method for radiating cooling film, which is characterized in that The low density polyethylene (LDPE) particle and low density polyethylene (LDPE) powder are all made of common low density polyethylene (LDPE), are used for cooling film emission layer Light penetrate, 107-112 DEG C of fusing point, melt flow rate (MFR) 3.0-5.0g/10min, the grain of the low density polyethylene (LDPE) particle Diameter is 4-5mm, and the partial size of the low density polyethylene (LDPE) powder is 100 mesh.
3. according to claim 1 be mass produced SiO using inflation film manufacturing machine2The method for radiating cooling film, which is characterized in that The SiO2Powder is for emitting infrared ray, and using nanoscale rounded bulbous powder, partial size is 8 microns.
CN201910050583.1A 2019-01-19 2019-01-19 Large-scale production of SiO by film blowing machine2Method for radiating cooling film Expired - Fee Related CN109624284B (en)

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CN201910050583.1A CN109624284B (en) 2019-01-19 2019-01-19 Large-scale production of SiO by film blowing machine2Method for radiating cooling film

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Application Number Priority Date Filing Date Title
CN201910050583.1A CN109624284B (en) 2019-01-19 2019-01-19 Large-scale production of SiO by film blowing machine2Method for radiating cooling film

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2020262247A1 (en) * 2019-06-27 2020-12-30

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008030461A (en) * 2006-06-27 2008-02-14 Sumitomo Chemical Co Ltd Manufacturing process of polyolefin resin film
CN101228232A (en) * 2005-07-28 2008-07-23 株式会社吴羽 Polyvinylidene chloride resin composition, biaxially stretched film, and method for producing such biaxially stretched film
CN103042796A (en) * 2013-01-07 2013-04-17 惠州宝柏包装有限公司 Antistatic polyethylene film and preparation method thereof
WO2017151514A1 (en) * 2016-02-29 2017-09-08 The Regents Of The University Of Colorado, A Body Corporate Radiative cooling structures and systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101228232A (en) * 2005-07-28 2008-07-23 株式会社吴羽 Polyvinylidene chloride resin composition, biaxially stretched film, and method for producing such biaxially stretched film
JP2008030461A (en) * 2006-06-27 2008-02-14 Sumitomo Chemical Co Ltd Manufacturing process of polyolefin resin film
CN103042796A (en) * 2013-01-07 2013-04-17 惠州宝柏包装有限公司 Antistatic polyethylene film and preparation method thereof
WO2017151514A1 (en) * 2016-02-29 2017-09-08 The Regents Of The University Of Colorado, A Body Corporate Radiative cooling structures and systems
CN109070695A (en) * 2016-02-29 2018-12-21 科罗拉多大学董事会 Radiation-cooled structure and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2020262247A1 (en) * 2019-06-27 2020-12-30
WO2020262247A1 (en) * 2019-06-27 2020-12-30 富士フイルム株式会社 Polyolefin film and radiative cooling structure
US11319472B1 (en) 2019-06-27 2022-05-03 Fujifilm Corporation Polyolefin film and radiative cooling structure body

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