CN203579938U

CN203579938U - Thermoplastic vulcanized rubber particle

Info

Publication number: CN203579938U
Application number: CN201320620418.3U
Authority: CN
Inventors: 周令杰
Original assignee: Tianjin Jiexinli Industry And Trade Co Ltd
Current assignee: Tianjin Jiexinli Industry And Trade Co Ltd
Priority date: 2013-10-09
Filing date: 2013-10-09
Publication date: 2014-05-07
Anticipated expiration: 2023-10-09

Abstract

The utility model relates to a thermoplastic vulcanized rubber particle. The cross section of the particle is a circular shape or an elliptical shape with a fan-shaped opening, the angle of the fan-shaped opening is 70 to 120 DEG, the ratio of the outer diameter of the circular shape to the axial length is 1: (0.2-0.5), and the ratio of a long edge to a short edge of the elliptical shape is 1: (0.5 to 0.8). By changing an extruder die, the cross section of the thermoplastic vulcanized particle is in a circular shape with a fan-shaped opening, the angle of the fan-shaped opening is 80 to 120 DEG, the air circulation in the particle can be guaranteed through the fan-shaped opening, the rubber is prevented from being damped to deform, the flowing rate of the hot air also can be increased when the particle is molded, and the thermoplastic efficiency can be improved.

Description

TPV particle

Technical field

The utility model belongs to thermoplastic field, especially a kind of TPV particle.

Background technology

TPV particle claims again polyolefin alloy thermoplastic elastomer (TPE), referred to as TPV, TPE TPV TPU three belongs to a large class, be referred to as in the world thermoplastic elastomer (TPE), english abbreviation: TPE is as for the TPE usually saying, be to be formed by the blend of SEBS/SBS+PP+ naphthenic oil+calcium carbonate+auxiliary agent, be in the industry cycle again environmental protection flexible plastic; TPV is that EPDM is the elastomer of main base material, and dynamic vulcanization forms; TPU, is again polyurethane, has two kinds of polyester-type and polyethers.Three's contrast: 1, the transparency, TPU is better than TPE, and TPE is better than TPV, and TPV is not also occurring transparently on the market, but allegedly has major company to develop this series products abroad; 2, weatherability, TPV is better than TPE, and TPE is better than TPU; 3, proportion, the proportion excursion of TPE is very large, and from having between 0.89～1.3, TPV is in 0.98 left and right, and TPU is (reference: the proportion of water is 1) between 1.0～1.4; 4, wearability, TPU is better than TPV, and TPV is better than TPE, also has the TPE of high abrasion at present, but still has a gap with TPU; 5, oil resistivity, TPU(is good) to be better than TPV(medium), TPE is oil resistant not; 6, resistance to acids and bases (weak acid and weak base), TPV is better than TPE, acid and alkali-resistance not of TPU; 7, temperature tolerance, TPE is-60 ℃～90 ℃, and TPV is-60 ℃～130 ℃, and TPU is-60 ℃～80 ℃.

Summary of the invention

The purpose of this utility model is to provide the TPV particle of a kind of resistance to storage, anti-extrusion, easy heating.

The technical scheme that the present invention realizes object is as follows:

A kind of TPV particle, the cross section of described particle is one to have the circular or oval of sector open, and this fan-shaped opening angle is the opening of 70-120 °, and circular external diameter is 1:0.2-0.5 with the ratio of axial length.

And the long limit of described oval ring is 1:0.5-0.8 with the ratio of minor face.

Advantage of the present utility model and good effect are:

1, the utility model is by changing extruding dies, the cross section that makes TPV particle is the circle that a circle has sector open, and fan-shaped opening angle size is 80-120 °, sector open can guarantee the circulation of air in particle, prevent the distortion of making moist of rubber, when injection moulding, can also increase the flowing velocity of hot gas, accelerate thermoplastic efficiency.

The particle of the open hollow cylinder shape that 2, the utility model provides is very resistance to extruding in storage, because its rubber quality has certain elasticity, can accept certain compressional deformation, can reinstatement after extruding, and resistance to storage is wear-resisting effective.

Accompanying drawing explanation

Fig. 1 is the structural front view of embodiment 1 of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the structural front view of embodiment 2;

Fig. 4 is the left view of Fig. 3.

The specific embodiment

Below by accompanying drawing, describe the present embodiment in detail.It should be noted that, the present embodiment is descriptive, is not determinate, can not limit thus protection domain of the present utility model.

Embodiment 1:

A kind of TPV particle, its planform is referring to Fig. 1, Fig. 2, and the cross section of described particle is one to have the circle 1 of sector open, and this fan-shaped opening angle is the opening 2 of 100 °, and circular external diameter is 1:0.4 with the ratio of axial length.

Above-mentioned shape can be by changing extruding dies, and this opening can guarantee the circulation of air in particle, can increase the flowing velocity of hot gas during thermoplastic, accelerates thermoplastic efficiency.

Embodiment 2

A kind of TPV particle, its planform is referring to Fig. 3, Fig. 4, the cross section of described particle is one to have the ellipse of sector open, this fan-shaped opening angle is the opening of 80 °, circular external diameter is 1:0.2 with the ratio of axial length, and wherein the long limit of oval ring and the ratio of minor face are 1:0.7.

Claims

1. a TPV particle, is characterized in that: the cross section of described particle is one to have the circular or oval of sector open, and this fan-shaped opening angle is the opening of 70-120 °, and circular external diameter is 1:0.2-0.5 with the ratio of axial length.

2. TPV particle according to claim 1, is characterized in that: the long limit of described oval ring is 1:0.5-0.8 with the ratio of minor face.