Background technology
Used supply lead of active type household electrical appliances or wires such as electric fan and warm-air drier in the present household electrical appliance, in use, may receive the compressing of fan and warm-air drier or other objects etc., crush, or receive that artificial pulling etc. causes taking place Electrical Safety accident or fire, exists certain potential safety hazard.
Therefore, the UL standard is carried out correcting since 2010 to UL62 flexible cord standard, on original project basis of invariable, increase wearing and tearing for household electrical appliances such as fan and warm-air driers with power supply wiring, pinching, press and grind and crooked four tests, guarantee that this electric appliances in use as being pullled, drags on the ground, people or object jam on etc. and to be unlikely to be short-circuited or to open circuit, thereby guarantee safe in utilization and improve work-ing life.
In order to guarantee that distribution satisfies wearing and tearing, pinching is pressed and is ground and crooked four tests, then will study the prescription of the used sizing material of distribution, makes the intensity of material, and hardness and toughness reach certain degree fully to satisfy above-mentioned four requirements.
Summary of the invention
The object of the present invention is to provide a kind of wear-resisting, flexible polyvinyl chloride electrical wire and cable Insulation Material.
The technical solution used in the present invention is:
A kind of-R type polyvinyl chloride electrical wire and cable Insulation Material, by following weight part:
50~100 parts of polyvinyl chloride
35~50 parts in softening agent
1~3.5 part of antimonous oxide
4~6 parts of calcium zinc stabilizers
0.2~0.6 part of processing aid
1~4 part of pigment
Form, wherein, softening agent is dioctyl terephthalate or trioctyl trimellitate.
The molecular-weight average of polyvinyl chloride is 1300~1700, best, the molecular-weight average of polyvinyl chloride is 1700.
Processing aid is at least a in stearic acid, the polyethylene wax.
Pigment is at least a in carbon black, Rutile type Titanium Dioxide and the coloured pigment.
Calcium zinc stabilizer is the A-300 type calcium zinc stabilizer of German bear board calcium zinc stabilizer MC 8890KA/2 or Japanese marshy land company.
Use of the present invention-cable that R type polyvinyl chloride electrical wire and cable Insulation Material prepares, snappiness, wear resistance are good, can satisfy the requirement of UL62 standard.
The present invention-R type polyvinyl chloride electrical wire and cable Insulation Material, production technique is identical with existing manufacturing technique, need not equipment or technology are improved especially, and is convenient for production.
The present invention-R type polyvinyl chloride electrical wire and cable Insulation Material can adjust the soft or hard degree of product easily according to client's needs, satisfies different clients' needs.
Embodiment
A kind of-R type polyvinyl chloride electrical wire and cable Insulation Material, by following weight part:
50~100 parts of polyvinyl chloride
35~50 parts in softening agent
1~3.5 part of antimonous oxide
4~6 parts of calcium zinc stabilizers
0.2~0.6 part of processing aid
1~4 part of pigment
Form, wherein, softening agent is dioctyl terephthalate or trioctyl trimellitate.
The molecular-weight average of polyvinyl chloride is 1300~1700, best, the molecular-weight average of polyvinyl chloride is 1700.
Processing aid is at least a in stearic acid, the polyethylene wax.
Pigment is at least a in carbon black, Rutile type Titanium Dioxide and the coloured pigment.
Preferably ,-R type polyvinyl chloride electrical wire and cable Insulation Material, by following weight part:
50 parts of polyvinyl chloride
21.5~24 parts of trioctyl trimellitates
1~2 part of antimonous oxide
3 parts of calcium zinc stabilizers
0.2~0.3 part of polyethylene wax
0.5 part of pigment
Form.
Calcium zinc stabilizer is the A-300 type calcium zinc stabilizer of German bear board calcium zinc stabilizer MC 8890KA/2 or Japanese marshy land company.
After the raw material high-speed mixing, extrude and get final product.
Below in conjunction with embodiment, further specify the present invention.
Shown in the table composed as follows of embodiment 1~4.
The composition of table 1 embodiment
Composition | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
Polyvinyl chloride 1300 | 50 | 50 | | |
Polyvinyl chloride 1700 | | | 50 | 50 |
Trioctyl trimellitate | 24 | 21.5 | 24 | 21.5 |
Stablizer | 3 | 3 | 3 | 3 |
Antimonous oxide | 2 | 1.6 | 1.8 | 1.5 |
PE wax | 0.2 | 0.2 | 0.3 | 0.2 |
Carbon black | 0.5 | 0.5 | 0.5 | 0.5 |
Wherein, embodiment 1,2 calcium zinc stabilizers that use are the MC 8890KA/2 type calcium zinc stabilizer of German bear board, embodiment 3,4 uses is that the mixing of the MC 8890KA/2 type calcium zinc stabilizer of the A-300 type calcium zinc stabilizer of Japanese marshy land company and German bear board is used, and ratio is: A-300:MC 8890KA/2=1:2.
Comparative example
Comparative example is by 1,300 50 parts of polyvinyl chloride, 5 parts of nano activated calcium carbonates, 27 parts of trioctyl trimellitates, 3 parts of stablizers, 1.5 parts of antimonous oxides, 3 parts of kaolin, 0.3 part in PE wax, 0.5 part of composition of pigment.
Embodiment and comparative example are made the electric wire of same size by identical method.
The electric wire that uses embodiment and comparative example CABLE MATERIALS to make is respectively tested, and the result is as shown in the table.In the table, pinching, bending, wearing and tearing, pressure are ground in the test, select 5 samples for use.
Table 2 electric wire performance test table
Annotate: thermal ageing condition: 136 ℃ * 168 hours.
As can be seen from Table 2, CABLE MATERIALS with technology preparation of the present invention is compared with the CABLE MATERIALS in the comparative example, adopt the pinching of the electric wire of CABLE MATERIALS making of the present invention, wearing and tearing, the test of pressure stone roller is all satisfied or is substantially exceeded standard-required, meets the design requirements and the purpose of product fully, uses very safe, and the life-span is very long, meets the Huimin requirement.